From 8d23772b25115ecbcc7f42115754dfe67179621f Mon Sep 17 00:00:00 2001
From: Wesley Wigham <wewigham@microsoft.com>
Date: Mon, 7 Aug 2017 17:51:11 -0700
Subject: [PATCH 1/4] Ensure .name property is set on all transpiled methods

---
 src/compiler/factory.ts             | 15 +++++-
 src/compiler/transformers/es2015.ts | 74 ++++++++++++++++++++++++-----
 2 files changed, 75 insertions(+), 14 deletions(-)

diff --git a/src/compiler/factory.ts b/src/compiler/factory.ts
index 34727e4c41422..615d1d4a7a911 100644
--- a/src/compiler/factory.ts
+++ b/src/compiler/factory.ts
@@ -2777,9 +2777,17 @@ namespace ts {
             : createStrictEquality(createTypeOf(value), createLiteral(tag));
     }
 
-    export function createMemberAccessForPropertyName(target: Expression, memberName: PropertyName, location?: TextRange): MemberExpression {
+    export function createMemberAccessForPropertyName(target: Expression, memberName: PropertyName, location?: TextRange, storePropertyName?: Push<Identifier | StringLiteral | NumericLiteral>, context?: TransformationContext): MemberExpression {
         if (isComputedPropertyName(memberName)) {
-             return setTextRange(createElementAccess(target, memberName.expression), location);
+            // Assign the name to an identifier so that later we can set it's `.name` property without reinvoking the expression
+            if (storePropertyName) {
+                const id = createTempVariable(context.hoistVariableDeclaration);
+                storePropertyName.push(id);
+                return setTextRange(createElementAccess(target, createAssignment(id, memberName.expression)), location);
+            }
+            else {
+                return setTextRange(createElementAccess(target, memberName.expression), location);
+            }
         }
         else {
             const expression = setTextRange(
@@ -2789,6 +2797,9 @@ namespace ts {
                 memberName
             );
             getOrCreateEmitNode(expression).flags |= EmitFlags.NoNestedSourceMaps;
+            if (storePropertyName) {
+                storePropertyName.push(isIdentifier(memberName) ? createLiteral(unescapeLeadingUnderscores(memberName.escapedText)) : memberName);
+            }
             return expression;
         }
     }
diff --git a/src/compiler/transformers/es2015.ts b/src/compiler/transformers/es2015.ts
index f97de018d4ad0..aa623e628ecf9 100644
--- a/src/compiler/transformers/es2015.ts
+++ b/src/compiler/transformers/es2015.ts
@@ -862,7 +862,9 @@ namespace ts {
             startLexicalEnvironment();
             addExtendsHelperIfNeeded(statements, node, extendsClauseElement);
             addConstructor(statements, node, extendsClauseElement);
-            addClassMembers(statements, node);
+            const memberNames: MemberName[] = [];
+            addClassMembers(statements, node, memberNames);
+            addNamesHelperIfNeeded(statements, node, memberNames);
 
             // Create a synthetic text range for the return statement.
             const closingBraceLocation = createTokenRange(skipTrivia(currentText, node.members.end), SyntaxKind.CloseBraceToken);
@@ -906,6 +908,12 @@ namespace ts {
             }
         }
 
+        function addNamesHelperIfNeeded(statements: Statement[], node: ClassExpression | ClassDeclaration, memberNames: MemberName[]) {
+            if (memberNames && memberNames.length) {
+                statements.push(createStatement(createNamesHelper(context, createPropertyAccess(getInternalName(node), "prototype"), memberNames)));
+            }
+        }
+
         /**
          * Adds the constructor of the class to a class body function.
          *
@@ -1570,6 +1578,8 @@ namespace ts {
             return statements;
         }
 
+        type MemberName = Identifier | StringLiteral | NumericLiteral;
+
         /**
          * Adds statements to the class body function for a class to define the members of the
          * class.
@@ -1577,17 +1587,17 @@ namespace ts {
          * @param statements The statements for the class body function.
          * @param node The ClassExpression or ClassDeclaration node.
          */
-        function addClassMembers(statements: Statement[], node: ClassExpression | ClassDeclaration): void {
+        function addClassMembers(statements: Statement[], node: ClassExpression | ClassDeclaration, memberNames: Push<MemberName>): void {
             for (const member of node.members) {
                 switch (member.kind) {
                     case SyntaxKind.SemicolonClassElement:
                         statements.push(transformSemicolonClassElementToStatement(<SemicolonClassElement>member));
                         break;
 
-                    case SyntaxKind.MethodDeclaration:
-                        statements.push(transformClassMethodDeclarationToStatement(getClassMemberPrefix(node, member), <MethodDeclaration>member, node));
+                    case SyntaxKind.MethodDeclaration: {
+                        statements.push(transformClassMethodDeclarationToStatement(getClassMemberPrefix(node, member), <MethodDeclaration>member, node, memberNames));
                         break;
-
+                    }
                     case SyntaxKind.GetAccessor:
                     case SyntaxKind.SetAccessor:
                         const accessors = getAllAccessorDeclarations(node.members, <AccessorDeclaration>member);
@@ -1623,11 +1633,11 @@ namespace ts {
          * @param receiver The receiver for the member.
          * @param member The MethodDeclaration node.
          */
-        function transformClassMethodDeclarationToStatement(receiver: LeftHandSideExpression, member: MethodDeclaration, container: Node) {
+        function transformClassMethodDeclarationToStatement(receiver: LeftHandSideExpression, member: MethodDeclaration, container: Node, memberNames: Push<MemberName>) {
             const ancestorFacts = enterSubtree(HierarchyFacts.None, HierarchyFacts.None);
             const commentRange = getCommentRange(member);
             const sourceMapRange = getSourceMapRange(member);
-            const memberName = createMemberAccessForPropertyName(receiver, visitNode(member.name, visitor, isPropertyName), /*location*/ member.name);
+            const memberName = createMemberAccessForPropertyName(receiver, visitNode(member.name, visitor, isPropertyName), /*location*/ member.name, hasModifier(member, ModifierFlags.Static) ? undefined : memberNames, context);
             const memberFunction = transformFunctionLikeToExpression(member, /*location*/ member, /*name*/ undefined, container);
             setEmitFlags(memberFunction, EmitFlags.NoComments);
             setSourceMapRange(memberFunction, sourceMapRange);
@@ -2643,7 +2653,11 @@ namespace ts {
 
                 expressions.push(assignment);
 
-                addObjectLiteralMembers(expressions, node, temp, numInitialProperties);
+                const memberNames: MemberName[] = [];
+                addObjectLiteralMembers(expressions, node, temp, numInitialProperties, memberNames);
+                if (memberNames && memberNames.length) {
+                    expressions.push(createNamesHelper(context, temp, memberNames));
+                }
 
                 // We need to clone the temporary identifier so that we can write it on a
                 // new line
@@ -3068,7 +3082,7 @@ namespace ts {
          * @param numInitialNonComputedProperties The number of initial properties without
          *                                        computed property names.
          */
-        function addObjectLiteralMembers(expressions: Expression[], node: ObjectLiteralExpression, receiver: Identifier, start: number) {
+        function addObjectLiteralMembers(expressions: Expression[], node: ObjectLiteralExpression, receiver: Identifier, start: number, memberNames: Push<MemberName>) {
             const properties = node.properties;
             const numProperties = properties.length;
             for (let i = start; i < numProperties; i++) {
@@ -3084,7 +3098,7 @@ namespace ts {
                         break;
 
                     case SyntaxKind.MethodDeclaration:
-                        expressions.push(transformObjectLiteralMethodDeclarationToExpression(<MethodDeclaration>property, receiver, node, node.multiLine));
+                        expressions.push(transformObjectLiteralMethodDeclarationToExpression(<MethodDeclaration>property, receiver, node, node.multiLine, memberNames));
                         break;
 
                     case SyntaxKind.PropertyAssignment:
@@ -3153,12 +3167,15 @@ namespace ts {
          * @param method The MethodDeclaration node.
          * @param receiver The receiver for the assignment.
          */
-        function transformObjectLiteralMethodDeclarationToExpression(method: MethodDeclaration, receiver: Expression, container: Node, startsOnNewLine: boolean) {
+        function transformObjectLiteralMethodDeclarationToExpression(method: MethodDeclaration, receiver: Expression, container: Node, startsOnNewLine: boolean, memberNames: Push<MemberName>) {
             const ancestorFacts = enterSubtree(HierarchyFacts.None, HierarchyFacts.None);
             const expression = createAssignment(
                 createMemberAccessForPropertyName(
                     receiver,
-                    visitNode(method.name, visitor, isPropertyName)
+                    visitNode(method.name, visitor, isPropertyName),
+                    /* location */ undefined,
+                    memberNames,
+                    context
                 ),
                 transformFunctionLikeToExpression(method, /*location*/ method, /*name*/ undefined, container)
             );
@@ -4099,4 +4116,37 @@ namespace ts {
                 };
             })();`
     };
+
+    function createNamesHelper(context: TransformationContext, proto: PropertyAccessExpression | Identifier, names: (Identifier | StringLiteral | NumericLiteral)[]) {
+        context.requestEmitHelper(nameHelper);
+        return createCall(
+            getHelperName("__names"),
+            /* typeArguments */ undefined,
+            [
+                proto,
+                createArrayLiteral(names)
+            ]
+        );
+    }
+
+    const nameHelper: EmitHelper = {
+        name: "typescript:name",
+        scoped: false,
+        priority: 0,
+        text: `
+            var __names = (this && this.__names) || (function() {
+                var name = Object.defineProperty ? (function(proto, name) {
+                    Object.defineProperty(proto[name], 'name', { 
+                        value: name, configurable: true, writable: false, enumerable: false
+                    });
+                }) : (function(proto, name) {
+                    proto[name].name = name;
+                });
+                return function (proto, keys) {
+                    for (var i = keys.length - 1; i >= 0; i--) {
+                        name(proto, keys[i])
+                    }
+                };
+            })();`
+    };
 }

From 499a7adb12a06d5ebeb613d3c7f108c8c7ddcd3d Mon Sep 17 00:00:00 2001
From: Wesley Wigham <wewigham@microsoft.com>
Date: Mon, 7 Aug 2017 17:58:33 -0700
Subject: [PATCH 2/4] Massive baseline dump

---
 tests/baselines/reference/2dArrays.js         |   15 +
 .../baselines/reference/ClassDeclaration11.js |   15 +
 .../baselines/reference/ClassDeclaration13.js |   15 +
 .../baselines/reference/ClassDeclaration21.js |   15 +
 .../baselines/reference/ClassDeclaration22.js |   15 +
 .../reference/ES5For-ofTypeCheck10.js         |   18 +-
 .../baselines/reference/ES5SymbolProperty2.js |   18 +-
 .../baselines/reference/ES5SymbolProperty3.js |   18 +-
 .../baselines/reference/ES5SymbolProperty4.js |   18 +-
 .../baselines/reference/ES5SymbolProperty5.js |   18 +-
 .../baselines/reference/ES5SymbolProperty6.js |   18 +-
 .../baselines/reference/ES5SymbolProperty7.js |   18 +-
 ...ichExtendsInterfaceWithInaccessibleType.js |   15 +
 tests/baselines/reference/Protected4.js       |   15 +
 tests/baselines/reference/Protected7.js       |   15 +
 ...ortedAndNonExportedClassesOfTheSameName.js |   15 +
 tests/baselines/reference/abstractProperty.js |   15 +
 .../accessInstanceMemberFromStaticMethod01.js |   15 +
 .../accessOverriddenBaseClassMember1.js       |   16 +
 .../reference/accessibilityModifiers.js       |   15 +
 .../ambiguousCallsWhereReturnTypesAgree.js    |   16 +
 tests/baselines/reference/anonterface.js      |   15 +
 .../reference/anonymousClassExpression2.js    |   16 +
 tests/baselines/reference/argsInScope.js      |   15 +
 .../reference/arrayAssignmentTest1.js         |   17 +
 .../reference/arrayAssignmentTest2.js         |   17 +
 .../reference/arrayAssignmentTest4.js         |   15 +
 .../reference/arrayAssignmentTest5.js         |   15 +
 .../reference/arrayAssignmentTest6.js         |   15 +
 .../reference/arrayBestCommonTypes.js         |   16 +
 .../reference/arrayOfExportedClass.js         |   15 +
 .../arrayReferenceWithoutTypeArgs.js          |   15 +
 tests/baselines/reference/arrayconcat.js      |   15 +
 .../reference/arrowFunctionExpressions.js     |   15 +
 tests/baselines/reference/asiAbstract.js      |   15 +
 tests/baselines/reference/asiInES6Classes.js  |   15 +
 .../reference/asiPublicPrivateProtected.js    |   20 +
 .../assertInWrapSomeTypeParameter.js          |   15 +
 .../reference/assignToExistingClass.js        |   15 +
 ...CompatInterfaceWithStringIndexSignature.js |   15 +
 .../reference/assignmentLHSIsValue.js         |   16 +
 ...asyncArrowFunctionCapturesArguments_es5.js |    1 +
 .../asyncArrowFunctionCapturesThis_es5.js     |    1 +
 .../asyncAwaitIsolatedModules_es5.js          |   15 +
 tests/baselines/reference/asyncAwait_es5.js   |   15 +
 ...unctionDeclarationCapturesArguments_es5.js |    1 +
 .../reference/asyncImportedPromise_es5.js     |   15 +
 .../reference/asyncMethodWithSuper_es5.js     |    2 +
 .../reference/augmentedTypesClass.js          |   16 +
 .../reference/augmentedTypesClass2.js         |   17 +
 .../reference/augmentedTypesClass2a.js        |   15 +
 .../reference/augmentedTypesClass3.js         |   18 +
 .../reference/augmentedTypesClass4.js         |   16 +
 .../baselines/reference/augmentedTypesEnum.js |   15 +
 .../reference/augmentedTypesEnum2.js          |   15 +
 .../augmentedTypesExternalModule1.js          |   15 +
 .../reference/augmentedTypesFunction.js       |   15 +
 .../reference/augmentedTypesInterface.js      |   15 +
 .../reference/augmentedTypesModules.js        |   21 +
 .../reference/augmentedTypesModules2.js       |   15 +
 .../reference/augmentedTypesModules3.js       |   15 +
 .../reference/augmentedTypesModules3b.js      |   17 +
 .../reference/augmentedTypesModules4.js       |   15 +
 .../baselines/reference/augmentedTypesVar.js  |   15 +
 tests/baselines/reference/autoLift2.js        |   15 +
 tests/baselines/reference/autolift4.js        |   16 +
 tests/baselines/reference/avoid.js            |   15 +
 tests/baselines/reference/baseCheck.js        |   15 +
 .../reference/baseTypeAfterDerivedType.js     |   15 +
 .../baseTypeWrappingInstantiationChain.js     |   16 +
 .../binopAssignmentShouldHaveType.js          |   15 +
 ...kScopedFunctionDeclarationInStrictClass.js |   15 +
 .../blockScopedVariablesUseBeforeDef.js       |   16 +
 ...ctionWithIncorrectNumberOfTypeArguments.js |   16 +
 ...allGenericFunctionWithZeroTypeArguments.js |   16 +
 ...callNonGenericFunctionWithTypeArguments.js |   16 +
 .../callOverloadViaElementAccessExpression.js |   15 +
 tests/baselines/reference/callOverloads1.js   |   15 +
 tests/baselines/reference/callOverloads2.js   |   15 +
 tests/baselines/reference/callOverloads3.js   |   15 +
 tests/baselines/reference/callOverloads4.js   |   15 +
 tests/baselines/reference/callOverloads5.js   |   15 +
 ...tureWithOptionalParameterAndInitializer.js |   15 +
 ...sWithAccessibilityModifiersOnParameters.js |   15 +
 .../callSignaturesWithDuplicateParameters.js  |   15 +
 .../callSignaturesWithOptionalParameters.js   |   15 +
 .../callSignaturesWithOptionalParameters2.js  |   15 +
 ...callSignaturesWithParameterInitializers.js |   15 +
 ...allSignaturesWithParameterInitializers2.js |   15 +
 tests/baselines/reference/callWithSpread.js   |   16 +
 ...captureSuperPropertyAccessInSuperCall01.js |   15 +
 .../reference/captureThisInSuperCall.js       |   15 +
 .../reference/capturedLetConstInLoop10.js     |   16 +
 .../reference/capturedLetConstInLoop13.js     |   15 +
 .../reference/capturedLetConstInLoop9.js      |   16 +
 ...arameterConstrainedToOtherTypeParameter.js |   15 +
 ...rameterConstrainedToOtherTypeParameter2.js |   16 +
 .../reference/checkJsxChildrenProperty10.js   |   15 +
 .../reference/checkJsxChildrenProperty11.js   |   15 +
 .../reference/checkJsxChildrenProperty12.js   |   16 +
 .../reference/checkJsxChildrenProperty13.js   |   16 +
 .../reference/checkJsxChildrenProperty3.js    |   15 +
 .../reference/checkJsxChildrenProperty4.js    |   15 +
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 .../reference/checkJsxChildrenProperty6.js    |   15 +
 .../reference/checkJsxChildrenProperty7.js    |   15 +
 .../reference/checkJsxChildrenProperty8.js    |   15 +
 .../checkSwitchStatementIfCaseTypeIsString.js |   15 +
 .../reference/classAbstractAsIdentifier.js    |   15 +
 .../reference/classAbstractCrashedOnce.js     |   15 +
 .../reference/classAbstractExtends.js         |   16 +
 .../reference/classAbstractGeneric.js         |   17 +
 .../reference/classAbstractInstantiations2.js |   17 +
 .../classAbstractMethodInNonAbstractClass.js  |   15 +
 .../classAbstractMethodWithImplementation.js  |   15 +
 .../reference/classAbstractOverloads.js       |   15 +
 .../classAbstractOverrideWithAbstract.js      |   18 +
 .../reference/classAbstractSuperCalls.js      |   18 +
 .../classAbstractUsingAbstractMethod1.js      |   15 +
 .../classAbstractUsingAbstractMethods2.js     |   17 +
 .../baselines/reference/classBlockScoping.js  |   16 +
 .../classConstructorAccessibility2.js         |   20 +
 .../classConstructorAccessibility4.js         |   18 +
 tests/baselines/reference/classExpression4.js |   15 +
 tests/baselines/reference/classExpression5.js |   15 +
 .../reference/classExpressionTest1.js         |   15 +
 .../reference/classExpressionTest2.js         |   15 +
 tests/baselines/reference/classExpressions.js |   15 +
 .../reference/classExtendingClass.js          |   16 +
 ...sInterfaceThatExtendsClassWithPrivates1.js |   16 +
 .../reference/classImplementsClass2.js        |   16 +
 .../reference/classImplementsClass3.js        |   16 +
 .../reference/classImplementsClass4.js        |   16 +
 .../reference/classImplementsClass5.js        |   16 +
 .../reference/classImplementsClass6.js        |   16 +
 .../classImplementsImportedInterface.js       |   15 +
 tests/baselines/reference/classOrder1.js      |   15 +
 tests/baselines/reference/classOrder2.js      |   16 +
 .../reference/classPropertyAsPrivate.js       |   15 +
 .../reference/classPropertyAsProtected.js     |   15 +
 .../classPropertyIsPublicByDefault.js         |   15 +
 .../reference/classSideInheritance1.js        |   15 +
 .../reference/classSideInheritance2.js        |   15 +
 .../reference/classWithDuplicateIdentifier.js |   16 +
 .../reference/classWithMultipleBaseClasses.js |   17 +
 ...hOnlyPublicMembersEquivalentToInterface.js |   15 +
 ...OnlyPublicMembersEquivalentToInterface2.js |   15 +
 .../reference/classWithOptionalParameter.js   |   16 +
 ...ssWithOverloadImplementationOfWrongName.js |   15 +
 ...sWithOverloadImplementationOfWrongName2.js |   15 +
 .../reference/classWithPrivateProperty.js     |   15 +
 .../reference/classWithProtectedProperty.js   |   16 +
 .../reference/classWithPublicProperty.js      |   15 +
 tests/baselines/reference/classdecl.js        |   17 +
 .../cloduleAcrossModuleDefinitions.js         |   15 +
 .../collisionArgumentsClassMethod.js          |   16 +
 ...ollisionCodeGenModuleWithMethodChildren.js |   18 +
 .../collisionRestParameterClassMethod.js      |   16 +
 .../collisionSuperAndLocalFunctionInMethod.js |   17 +
 .../collisionSuperAndLocalVarInMethod.js      |   17 +
 .../collisionSuperAndNameResolution.js        |   15 +
 .../reference/collisionSuperAndParameter.js   |   17 +
 .../reference/collisionSuperAndParameter1.js  |   15 +
 ...lisionThisExpressionAndLocalVarInMethod.js |   15 +
 ...xpressionAndLocalVarWithSuperExperssion.js |   17 +
 ...ollisionThisExpressionAndNameResolution.js |   15 +
 .../collisionThisExpressionAndParameter.js    |   16 +
 .../reference/commentOnClassMethod1.js        |   15 +
 .../reference/commentOnSignature1.js          |   15 +
 .../reference/commentsClassMembers.js         |   15 +
 .../reference/commentsInheritance.js          |   17 +
 .../baselines/reference/commentsOverloads.js  |   15 +
 .../reference/commentsTypeParameters.js       |   15 +
 .../reference/commentsdoNotEmitComments.js    |   15 +
 .../reference/commentsemitComments.js         |   15 +
 .../comparisonOperatorWithIdenticalObjects.js |   17 +
 .../reference/complexClassRelationships.js    |   16 +
 .../reference/complexNarrowingWithAny.js      |   15 +
 .../baselines/reference/complicatedPrivacy.js |   16 +
 .../reference/compoundAssignmentLHSIsValue.js |   16 +
 ...poundExponentiationAssignmentLHSIsValue.js |   16 +
 .../reference/computedPropertyNames10_ES5.js  |   38 +-
 .../reference/computedPropertyNames13_ES5.js  |   30 +-
 .../reference/computedPropertyNames14_ES5.js  |   22 +-
 .../reference/computedPropertyNames15_ES5.js  |   22 +-
 .../reference/computedPropertyNames21_ES5.js  |   18 +-
 .../reference/computedPropertyNames22_ES5.js  |   19 +-
 .../reference/computedPropertyNames23_ES5.js  |   19 +-
 .../reference/computedPropertyNames24_ES5.js  |   19 +-
 .../reference/computedPropertyNames25_ES5.js  |   20 +-
 .../reference/computedPropertyNames26_ES5.js  |   20 +-
 .../reference/computedPropertyNames27_ES5.js  |   18 +-
 .../reference/computedPropertyNames28_ES5.js  |   18 +-
 .../reference/computedPropertyNames29_ES5.js  |   21 +-
 .../reference/computedPropertyNames2_ES5.js   |   18 +-
 .../reference/computedPropertyNames30_ES5.js  |   18 +-
 .../reference/computedPropertyNames31_ES5.js  |   22 +-
 .../reference/computedPropertyNames32_ES5.js  |   18 +-
 .../reference/computedPropertyNames33_ES5.js  |   19 +-
 .../reference/computedPropertyNames34_ES5.js  |   18 +-
 .../reference/computedPropertyNames3_ES5.js   |   18 +-
 .../reference/computedPropertyNames40_ES5.js  |   20 +-
 ...omputedPropertyNamesContextualType1_ES5.js |   20 +-
 ...omputedPropertyNamesContextualType2_ES5.js |   20 +-
 ...omputedPropertyNamesContextualType3_ES5.js |   20 +-
 ...mputedPropertyNamesDeclarationEmit1_ES5.js |   18 +-
 ...mputedPropertyNamesDeclarationEmit5_ES5.js |   20 +-
 .../computedPropertyNamesOnOverloads_ES5.js   |   18 +-
 .../computedPropertyNamesSourceMap1_ES5.js    |   18 +-
 ...computedPropertyNamesSourceMap1_ES5.js.map |    2 +-
 ...dPropertyNamesSourceMap1_ES5.sourcemap.txt |  100 +-
 .../computedPropertyNamesSourceMap2_ES5.js    |   20 +-
 ...computedPropertyNamesSourceMap2_ES5.js.map |    2 +-
 ...dPropertyNamesSourceMap2_ES5.sourcemap.txt |   81 +-
 .../reference/conflictMarkerDiff3Trivia2.js   |   15 +
 .../reference/conflictMarkerTrivia2.js        |   15 +
 .../reference/constantOverloadFunction.js     |   18 +
 .../constantOverloadFunctionNoSubtypeError.js |   18 +
 ...nstraintCheckInGenericBaseTypeReference.js |   16 +
 .../reference/constructorOverloads1.js        |   15 +
 .../reference/constructorOverloads2.js        |   16 +
 .../reference/constructorOverloads3.js        |   15 +
 .../constructorReturnsInvalidType.js          |   15 +
 ...constructorWithIncompleteTypeAnnotation.js |   18 +
 .../contextualTypeAppliedToVarArgs.js         |   15 +
 ...TypedClassExpressionMethodDeclaration02.js |   15 +
 .../controlFlowSuperPropertyAccess.js         |   15 +
 .../crashInresolveReturnStatement.js          |   16 +
 ...rashIntypeCheckObjectCreationExpression.js |   15 +
 .../reference/crashRegressionTest.js          |   15 +
 ...declFileForClassWithMultipleBaseClasses.js |   17 +
 ...leForClassWithPrivateOverloadedFunction.js |   15 +
 .../reference/declFileForTypeParameters.js    |   15 +
 tests/baselines/reference/declFileMethods.js  |   30 +
 .../declFilePrivateMethodOverloads.js         |   15 +
 tests/baselines/reference/declInput-2.js      |   15 +
 tests/baselines/reference/declInput.js        |   15 +
 tests/baselines/reference/declInput3.js       |   15 +
 tests/baselines/reference/declInput4.js       |   15 +
 .../declarationEmitClassMemberNameConflict.js |   18 +
 .../declarationEmitProtectedMembers.js        |   17 +
 .../declarationEmitThisPredicates01.js        |   15 +
 ...tionEmitThisPredicatesWithPrivateName01.js |   15 +
 tests/baselines/reference/declarationFiles.js |   16 +
 .../reference/declarationMerging1.js          |   15 +
 .../reference/declarationMerging2.js          |   15 +
 .../decoratorChecksFunctionBodies.js          |   15 +
 .../baselines/reference/decoratorMetadata.js  |   15 +
 ...taForMethodWithNoReturnTypeAnnotation01.js |    1 +
 ...orMetadataRestParameterWithImportedType.js |   15 +
 ...adataWithImportDeclarationNameCollision.js |    1 +
 ...dataWithImportDeclarationNameCollision2.js |    1 +
 ...dataWithImportDeclarationNameCollision3.js |    1 +
 ...dataWithImportDeclarationNameCollision4.js |    1 +
 ...dataWithImportDeclarationNameCollision5.js |    1 +
 ...dataWithImportDeclarationNameCollision6.js |    1 +
 ...dataWithImportDeclarationNameCollision7.js |    1 +
 ...dataWithImportDeclarationNameCollision8.js |    1 +
 .../baselines/reference/decoratorOnClass9.js  |   15 +
 .../reference/decoratorOnClassMethod1.js      |   15 +
 .../reference/decoratorOnClassMethod10.js     |   15 +
 .../reference/decoratorOnClassMethod11.js     |   15 +
 .../reference/decoratorOnClassMethod12.js     |   16 +
 .../reference/decoratorOnClassMethod2.js      |   15 +
 .../reference/decoratorOnClassMethod3.js      |   15 +
 .../reference/decoratorOnClassMethod8.js      |   15 +
 .../decoratorOnClassMethodOverload1.js        |   15 +
 .../decoratorOnClassMethodOverload2.js        |   15 +
 .../decoratorOnClassMethodParameter1.js       |   15 +
 .../decoratorWithUnderscoreMethod.js          |    1 +
 .../reference/defaultArgsInOverloads.js       |   15 +
 ...edClassConstructorWithExplicitReturns01.js |   15 +
 ...assConstructorWithExplicitReturns01.js.map |    2 +-
 ...tructorWithExplicitReturns01.sourcemap.txt |  279 ++--
 ...ClassFunctionOverridesBaseClassAccessor.js |   15 +
 .../derivedClassIncludesInheritedMembers.js   |   15 +
 .../derivedClassOverridesPrivateFunction1.js  |   16 +
 .../derivedClassOverridesProtectedMembers.js  |   16 +
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 tests/baselines/reference/privacyGloFunc.js   |   23 +
 tests/baselines/reference/privacyGloGetter.js |   15 +
 .../reference/privacyGloInterface.js          |   16 +
 tests/baselines/reference/privacyGloVar.js    |   16 +
 tests/baselines/reference/privacyInterface.js |   17 +
 .../privacyTypeParameterOfFunction.js         |   20 +
 .../privacyTypeParameterOfFunctionDeclFile.js |   36 +
 .../reference/privacyTypeParametersOfClass.js |   20 +
 .../privacyTypeParametersOfClassDeclFile.js   |   36 +
 tests/baselines/reference/privacyVar.js       |   17 +
 .../reference/privateAccessInSubclass1.js     |   15 +
 ...ivateClassPropertyAccessibleWithinClass.js |   16 +
 ...lassPropertyAccessibleWithinNestedClass.js |   16 +
 .../privateInstanceMemberAccessibility.js     |   15 +
 .../reference/privateInstanceVisibility.js    |   16 +
 ...tedMembersAreNotAccessibleDestructuring.js |   16 +
 .../baselines/reference/privateVisibility.js  |   15 +
 tests/baselines/reference/privateVisibles.js  |   15 +
 .../amd/li'b/class'A.js                       |   15 +
 .../node/li'b/class'A.js                      |   15 +
 .../amd/fs.js                                 |   15 +
 .../node/fs.js                                |   15 +
 tests/baselines/reference/promiseChaining.js  |   15 +
 tests/baselines/reference/promiseChaining1.js |   15 +
 tests/baselines/reference/promiseChaining2.js |   15 +
 ...rtyAccessOnTypeParameterWithConstraints.js |   15 +
 ...tyAccessOnTypeParameterWithConstraints2.js |   17 +
 ...tyAccessOnTypeParameterWithConstraints3.js |   17 +
 ...tyAccessOnTypeParameterWithConstraints4.js |   15 +
 ...tyAccessOnTypeParameterWithConstraints5.js |   17 +
 ...AccessOnTypeParameterWithoutConstraints.js |   15 +
 .../propertyAndFunctionWithSameName.js        |   16 +
 tests/baselines/reference/propertyOrdering.js |   16 +
 .../baselines/reference/propertyOrdering2.js  |   15 +
 ...ectedClassPropertyAccessibleWithinClass.js |   16 +
 ...lassPropertyAccessibleWithinNestedClass.js |   16 +
 ...sPropertyAccessibleWithinNestedSubclass.js |   16 +
 ...PropertyAccessibleWithinNestedSubclass1.js |   24 +
 ...edClassPropertyAccessibleWithinSubclass.js |   15 +
 ...dClassPropertyAccessibleWithinSubclass2.js |   19 +
 ...dClassPropertyAccessibleWithinSubclass3.js |   16 +
 .../protectedInstanceMemberAccessibility.js   |   16 +
 tests/baselines/reference/protectedMembers.js |   17 +
 .../reference/quotedFunctionName1.js          |   15 +
 .../reference/quotedPropertyName3.js          |   15 +
 .../readonlyInNonPropertyParameters.js        |   15 +
 tests/baselines/reference/readonlyMembers.js  |   15 +
 .../recursiveBaseConstructorCreation1.js      |   15 +
 .../reference/recursiveClassReferenceTest.js  |   19 +
 .../recursiveClassReferenceTest.js.map        |    2 +-
 .../recursiveClassReferenceTest.sourcemap.txt |  804 +++++------
 .../reference/recursiveComplicatedClasses.js  |   15 +
 .../reference/recursiveInheritance3.js        |   15 +
 .../reference/requireEmitSemicolon.js         |   15 +
 .../requiredInitializedParameter2.js          |   15 +
 .../requiredInitializedParameter3.js          |   15 +
 .../requiredInitializedParameter4.js          |   15 +
 ...lassDeclarationWhenInBaseTypeResolution.js |  106 ++
 .../restParameterAssignmentCompatibility.js   |   17 +
 ...estParameterWithoutAnnotationIsAnyArray.js |   15 +
 .../restParametersOfNonArrayTypes.js          |   15 +
 .../restParametersOfNonArrayTypes2.js         |   16 +
 .../restParametersWithArrayTypeAnnotations.js |   16 +
 .../reference/returnInConstructor1.js         |   19 +
 tests/baselines/reference/returnStatements.js |   15 +
 .../reference/returnTypeTypeArguments.js      |   16 +
 ...peCheckExtendedClassInsidePublicMethod2.js |   15 +
 .../scopeCheckInsidePublicMethod1.js          |   15 +
 .../reference/scopeResolutionIdentifiers.js   |   15 +
 tests/baselines/reference/selfInCallback.js   |   15 +
 tests/baselines/reference/selfInLambdas.js    |   15 +
 .../selfReferencesInFunctionParameters.js     |   15 +
 .../reference/shadowPrivateMembers.js         |   16 +
 .../sigantureIsSubTypeIfTheyAreIdentical.js   |   15 +
 ...reInstantiationWithRecursiveConstraints.js |   16 +
 .../baselines/reference/sourceMap-Comments.js |   15 +
 .../reference/sourceMap-Comments.js.map       |    2 +-
 .../sourceMap-Comments.sourcemap.txt          |  195 +--
 .../reference/sourceMap-FileWithComments.js   |   15 +
 .../sourceMap-FileWithComments.js.map         |    2 +-
 .../sourceMap-FileWithComments.sourcemap.txt  |  293 ++--
 tests/baselines/reference/sourceMapSample.js  |   15 +
 .../reference/sourceMapSample.js.map          |    2 +-
 .../reference/sourceMapSample.sourcemap.txt   |  449 +++---
 .../reference/sourceMapValidationClass.js     |   15 +
 .../reference/sourceMapValidationClass.js.map |    2 +-
 .../sourceMapValidationClass.sourcemap.txt    |  189 +--
 .../reference/sourceMapValidationClasses.js   |   15 +
 .../sourceMapValidationClasses.js.map         |    2 +-
 .../sourceMapValidationClasses.sourcemap.txt  |  461 ++++---
 .../sourceMapValidationDecorators.js          |   15 +
 .../sourceMapValidationDecorators.js.map      |    2 +-
 ...ourceMapValidationDecorators.sourcemap.txt |  379 +++---
 .../specializedOverloadWithRestParameters.js  |   16 +
 ...reIsNotSubtypeOfNonSpecializedSignature.js |   17 +
 ...atureIsSubtypeOfNonSpecializedSignature.js |   17 +
 tests/baselines/reference/spreadMethods.js    |   15 +
 .../reference/staticAndMemberFunctions.js     |   15 +
 .../staticAndNonStaticPropertiesSameName.js   |   15 +
 .../reference/staticClassMemberError.js       |   15 +
 tests/baselines/reference/staticClassProps.js |   15 +
 tests/baselines/reference/staticFactory1.js   |   16 +
 .../reference/staticInstanceResolution.js     |   15 +
 .../reference/staticInstanceResolution4.js    |   15 +
 .../reference/staticMemberExportAccess.js     |   15 +
 ...AndPublicMemberOfAnotherClassAssignment.js |   15 +
 ...dWithTypeParameterExtendsClauseDeclFile.js |   15 +
 .../reference/staticOffOfInstance1.js         |   15 +
 .../reference/staticOffOfInstance2.js         |   15 +
 .../staticPropertyAndFunctionWithSameName.js  |   15 +
 .../reference/staticPropertyNameConflicts.js  |   29 +
 .../reference/staticPropertyNotInClassType.js |   16 +
 ...trictModeReservedWordInClassDeclaration.js |   16 +
 .../strictModeUseContextualKeyword.js         |   15 +
 ...ngIndexerConstrainsPropertyDeclarations.js |   15 +
 ...gIndexerConstrainsPropertyDeclarations2.js |   16 +
 .../stringLiteralTypeIsSubtypeOfString.js     |   15 +
 ...gLiteralTypesInImplementationSignatures.js |   15 +
 ...LiteralTypesInImplementationSignatures2.js |   15 +
 tests/baselines/reference/stripInternal1.js   |   15 +
 tests/baselines/reference/super.js            |   18 +
 tests/baselines/reference/super1.js           |   24 +
 tests/baselines/reference/super2.js           |   20 +
 tests/baselines/reference/superAccess.js      |   15 +
 tests/baselines/reference/superAccess2.js     |   16 +
 .../reference/superAccessInFatArrow1.js       |   16 +
 .../reference/superCallInNonStaticMethod.js   |   16 +
 .../superCallInsideObjectLiteralExpression.js |   15 +
 .../reference/superCallOutsideConstructor.js  |   15 +
 .../superCallParameterContextualTyping3.js    |   15 +
 .../superCallWithMissingBaseClass.js          |   15 +
 .../reference/superCallsInConstructor.js      |   15 +
 tests/baselines/reference/superErrors.js      |   16 +
 .../superHasMethodsFromMergedInterface.js     |   16 +
 .../baselines/reference/superInCatchBlock1.js |   16 +
 .../reference/superInConstructorParam1.js     |   15 +
 tests/baselines/reference/superInLambdas.js   |   19 +
 .../reference/superInObjectLiterals_ES5.js    |   16 +
 .../reference/superPropertyAccess.js          |   16 +
 .../reference/superPropertyAccess1.js         |   16 +
 ...essInComputedPropertiesOfNestedType_ES5.js |   20 +-
 .../superPropertyAccessInSuperCall01.js       |   15 +
 .../reference/superPropertyAccessNoError.js   |   16 +
 .../reference/superPropertyAccess_ES5.js      |   15 +
 ...perPropertyInConstructorBeforeSuperCall.js |   15 +
 .../reference/superSymbolIndexedAccess5.js    |   22 +-
 .../reference/superWithTypeArgument3.js       |   16 +
 ...side-object-literal-getters-and-setters.js |   16 +
 tests/baselines/reference/thisBinding.js      |   16 +
 tests/baselines/reference/thisCapture1.js     |   15 +
 ...essionInCallExpressionWithTypeArguments.js |   15 +
 .../reference/thisInConstructorParameter2.js  |   15 +
 .../reference/thisInInnerFunctions.js         |   15 +
 tests/baselines/reference/thisInLambda.js     |   15 +
 .../reference/thisInObjectLiterals.js         |   15 +
 .../reference/thisInOuterClassBody.js         |   15 +
 .../thisInPropertyBoundDeclarations.js        |   15 +
 .../reference/thisTypeAndConstraints.js       |   16 +
 .../reference/thisTypeAsConstraint.js         |   15 +
 tests/baselines/reference/thisTypeErrors.js   |   15 +
 .../baselines/reference/thisTypeInClasses.js  |   16 +
 .../reference/thisTypeInFunctions.js          |   17 +
 .../reference/thisTypeInFunctionsNegative.js  |   18 +
 .../reference/thisWhenTypeCheckFails.js       |   15 +
 .../reference/throwInEnclosingStatements.js   |   15 +
 tests/baselines/reference/topLevel.js         |   15 +
 ...railingCommaInHeterogenousArrayLiteral1.js |   15 +
 .../reference/tsxAttributeResolution10.js     |   15 +
 .../reference/tsxAttributeResolution11.js     |   15 +
 .../reference/tsxAttributeResolution15.js     |   15 +
 .../reference/tsxAttributeResolution16.js     |   15 +
 .../reference/tsxAttributeResolution9.js      |   15 +
 .../tsxCorrectlyParseLessThanComparison1.js   |   15 +
 .../tsxDefaultAttributesResolution1.js        |   15 +
 .../tsxDefaultAttributesResolution2.js        |   15 +
 .../tsxDefaultAttributesResolution3.js        |   15 +
 .../baselines/reference/tsxDynamicTagName5.js |   15 +
 .../baselines/reference/tsxDynamicTagName7.js |   15 +
 .../baselines/reference/tsxDynamicTagName8.js |   15 +
 .../baselines/reference/tsxDynamicTagName9.js |   15 +
 tests/baselines/reference/tsxEmit1.js         |   15 +
 .../reference/tsxExternalModuleEmit1.js       |   30 +
 .../reference/tsxGenericAttributesType3.js    |   16 +
 .../reference/tsxGenericAttributesType4.js    |   16 +
 .../reference/tsxGenericAttributesType5.js    |   16 +
 .../reference/tsxGenericAttributesType6.js    |   16 +
 .../reference/tsxGenericAttributesType9.js    |   15 +
 tests/baselines/reference/tsxReactEmit1.js    |   15 +
 .../tsxSpreadAttributesResolution1.js         |   15 +
 .../tsxSpreadAttributesResolution10.js        |   15 +
 .../tsxSpreadAttributesResolution11.js        |   15 +
 .../tsxSpreadAttributesResolution12.js        |   15 +
 .../tsxSpreadAttributesResolution2.js         |   15 +
 .../tsxSpreadAttributesResolution3.js         |   15 +
 .../tsxSpreadAttributesResolution4.js         |   16 +
 .../tsxSpreadAttributesResolution5.js         |   16 +
 .../tsxSpreadAttributesResolution6.js         |   15 +
 .../tsxSpreadAttributesResolution7.js         |   15 +
 .../tsxSpreadAttributesResolution8.js         |   15 +
 .../tsxSpreadAttributesResolution9.js         |   15 +
 .../tsxStatelessFunctionComponents2.js        |   15 +
 .../reference/tsxUnionElementType3.js         |   18 +
 .../reference/tsxUnionElementType4.js         |   18 +
 .../reference/tsxUnionTypeComponent1.js       |   15 +
 .../reference/typeCheckTypeArgument.js        |   15 +
 .../typeConstraintsWithConstructSignatures.js |   15 +
 .../baselines/reference/typeGuardFunction.js  |   15 +
 .../reference/typeGuardFunctionOfFormThis.js  |   22 +
 .../typeGuardFunctionOfFormThisErrors.js      |   17 +
 .../reference/typeGuardsInClassMethods.js     |   15 +
 .../reference/typeGuardsInProperties.js       |   15 +
 .../reference/typeGuardsOnClassProperty.js    |   15 +
 .../reference/typeInferenceLiteralUnion.js    |   15 +
 .../typeInferenceReturnTypeCallback.js        |   16 +
 tests/baselines/reference/typeOfThis.js       |   16 +
 .../reference/typeOfThisInInstanceMember.js   |   15 +
 .../reference/typeOfThisInInstanceMember2.js  |   15 +
 .../reference/typeOfThisInMemberFunctions.js  |   17 +
 .../typeParameterAssignmentCompat1.js         |   15 +
 .../reference/typeParameterExtendingUnion1.js |   15 +
 .../reference/typeParameterExtendingUnion2.js |   15 +
 ...ParameterUsedAsTypeParameterConstraint4.js |   15 +
 .../typeParameterWithInvalidConstraintType.js |   15 +
 ...eParametersAndParametersInComputedNames.js |   18 +-
 .../typeParametersAreIdenticalToThemselves.js |   16 +
 .../typeParametersAvailableInNestedScope.js   |   15 +
 tests/baselines/reference/typeQueryOnClass.js |   16 +
 .../reference/typeQueryWithReservedWords.js   |   15 +
 .../baselines/reference/typeRelationships.js  |   16 +
 tests/baselines/reference/typeResolution.js   |   21 +
 .../baselines/reference/typeResolution.js.map |    2 +-
 .../reference/typeResolution.sourcemap.txt    | 1203 +++++++++--------
 .../reference/typeVariableTypeGuards.js       |   17 +
 .../reference/typedGenericPrototypeMember.js  |   15 +
 tests/baselines/reference/typeofClass2.js     |   15 +
 .../typesWithSpecializedCallSignatures.js     |   15 +
 tests/baselines/reference/undeclaredMethod.js |   15 +
 .../baselines/reference/underscoreMapFirst.js |   15 +
 .../reference/unionTypeEquivalence.js         |   15 +
 .../reference/unionTypeFromArrayLiteral.js    |   18 +
 .../reference/unionTypesAssignability.js      |   16 +
 .../reference/unknownTypeArgOnCall.js         |   15 +
 .../reference/unspecializedConstraints.js     |   18 +
 .../reference/unusedClassesinModule1.js       |   15 +
 .../unusedIdentifiersConsolidated1.js         |   17 +
 tests/baselines/reference/unusedImports10.js  |   15 +
 tests/baselines/reference/unusedImports2.js   |   15 +
 tests/baselines/reference/unusedImports3.js   |   15 +
 tests/baselines/reference/unusedImports4.js   |   15 +
 tests/baselines/reference/unusedImports5.js   |   15 +
 tests/baselines/reference/unusedImports6.js   |   15 +
 tests/baselines/reference/unusedImports7.js   |   15 +
 tests/baselines/reference/unusedImports8.js   |   15 +
 tests/baselines/reference/unusedImports9.js   |   15 +
 .../reference/unusedInvalidTypeArguments.js   |   15 +
 .../reference/unusedLocalProperty.js          |   15 +
 .../reference/unusedLocalsAndParameters.js    |   16 +
 .../unusedLocalsAndParametersDeferred.js      |   16 +
 ...edLocalsAndParametersOverloadSignatures.js |   15 +
 .../reference/unusedLocalsInMethod1.js        |   15 +
 .../reference/unusedLocalsInMethod2.js        |   15 +
 .../reference/unusedLocalsInMethod3.js        |   15 +
 ...dMultipleParameters1InMethodDeclaration.js |   15 +
 ...dMultipleParameters2InMethodDeclaration.js |   15 +
 .../reference/unusedParametersInLambda1.js    |   15 +
 .../reference/unusedParametersInLambda2.js    |   15 +
 .../reference/unusedParametersThis.js         |   15 +
 .../reference/unusedPrivateMembers.js         |   19 +
 .../reference/unusedPrivateMethodInClass1.js  |   15 +
 .../reference/unusedPrivateMethodInClass2.js  |   15 +
 .../reference/unusedPrivateMethodInClass3.js  |   15 +
 .../reference/unusedPrivateMethodInClass4.js  |   15 +
 .../unusedPrivateVariableInClass4.js          |   15 +
 ...nusedSingleParameterInMethodDeclaration.js |   15 +
 .../reference/unusedTypeParameterInLambda1.js |   15 +
 .../reference/unusedTypeParameterInLambda2.js |   15 +
 .../reference/unusedTypeParameterInMethod1.js |   15 +
 .../reference/unusedTypeParameterInMethod2.js |   15 +
 .../reference/unusedTypeParameterInMethod3.js |   15 +
 .../reference/unusedTypeParameterInMethod4.js |   15 +
 .../reference/unusedTypeParameters2.js        |   15 +
 .../reference/unusedTypeParameters3.js        |   15 +
 .../reference/unusedVariablesinNamespaces2.js |   15 +
 .../reference/unusedVariablesinNamespaces3.js |   15 +
 tests/baselines/reference/vararg.js           |   15 +
 ...eclaratorResolvedDuringContextualTyping.js |   15 +
 .../reference/visibilityOfTypeParameters.js   |   15 +
 tests/baselines/reference/witness.js          |   16 +
 .../wrappedAndRecursiveConstraints.js         |   15 +
 .../wrappedAndRecursiveConstraints3.js        |   15 +
 .../wrappedAndRecursiveConstraints4.js        |   15 +
 1011 files changed, 18170 insertions(+), 2308 deletions(-)

diff --git a/tests/baselines/reference/2dArrays.js b/tests/baselines/reference/2dArrays.js
index 62133e770ff9f..df4fe99cb9f76 100644
--- a/tests/baselines/reference/2dArrays.js
+++ b/tests/baselines/reference/2dArrays.js
@@ -16,6 +16,20 @@ class Board {
 }
 
 //// [2dArrays.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Cell = (function () {
     function Cell() {
     }
@@ -32,5 +46,6 @@ var Board = (function () {
     Board.prototype.allShipsSunk = function () {
         return this.ships.every(function (val) { return val.isSunk; });
     };
+    __names(Board.prototype, ["allShipsSunk"]);
     return Board;
 }());
diff --git a/tests/baselines/reference/ClassDeclaration11.js b/tests/baselines/reference/ClassDeclaration11.js
index 28705f5dfe02c..e7a0cd57bf8d2 100644
--- a/tests/baselines/reference/ClassDeclaration11.js
+++ b/tests/baselines/reference/ClassDeclaration11.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [ClassDeclaration11.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/ClassDeclaration13.js b/tests/baselines/reference/ClassDeclaration13.js
index faabbb3b3c20d..f5cd1cf9dd707 100644
--- a/tests/baselines/reference/ClassDeclaration13.js
+++ b/tests/baselines/reference/ClassDeclaration13.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [ClassDeclaration13.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.bar = function () { };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/ClassDeclaration21.js b/tests/baselines/reference/ClassDeclaration21.js
index 00bd52cf0bad1..f45db91d3c01d 100644
--- a/tests/baselines/reference/ClassDeclaration21.js
+++ b/tests/baselines/reference/ClassDeclaration21.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [ClassDeclaration21.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype[1] = function () { };
+    __names(C.prototype, [1]);
     return C;
 }());
diff --git a/tests/baselines/reference/ClassDeclaration22.js b/tests/baselines/reference/ClassDeclaration22.js
index 2e9c98d8da3c7..cc3501f34b6e9 100644
--- a/tests/baselines/reference/ClassDeclaration22.js
+++ b/tests/baselines/reference/ClassDeclaration22.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [ClassDeclaration22.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype["bar"] = function () { };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/ES5For-ofTypeCheck10.js b/tests/baselines/reference/ES5For-ofTypeCheck10.js
index c4cfafe51990c..218c3ac481f6c 100644
--- a/tests/baselines/reference/ES5For-ofTypeCheck10.js
+++ b/tests/baselines/reference/ES5For-ofTypeCheck10.js
@@ -15,6 +15,20 @@ class StringIterator {
 for (var v of new StringIterator) { }
 
 //// [ES5For-ofTypeCheck10.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // In ES3/5, you cannot for...of over an arbitrary iterable.
 var StringIterator = (function () {
     function StringIterator() {
@@ -25,10 +39,12 @@ var StringIterator = (function () {
             value: ""
         };
     };
-    StringIterator.prototype[Symbol.iterator] = function () {
+    StringIterator.prototype[_a = Symbol.iterator] = function () {
         return this;
     };
+    __names(StringIterator.prototype, ["next", _a]);
     return StringIterator;
+    var _a;
 }());
 for (var _i = 0, _a = new StringIterator; _i < _a.length; _i++) {
     var v = _a[_i];
diff --git a/tests/baselines/reference/ES5SymbolProperty2.js b/tests/baselines/reference/ES5SymbolProperty2.js
index 0cfe717ae56ea..ba993fc8aa84b 100644
--- a/tests/baselines/reference/ES5SymbolProperty2.js
+++ b/tests/baselines/reference/ES5SymbolProperty2.js
@@ -11,14 +11,30 @@ module M {
 (new M.C)[Symbol.iterator];
 
 //// [ES5SymbolProperty2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var Symbol;
     var C = (function () {
         function C() {
         }
-        C.prototype[Symbol.iterator] = function () { };
+        C.prototype[_a = Symbol.iterator] = function () { };
+        __names(C.prototype, [_a]);
         return C;
+        var _a;
     }());
     M.C = C;
     (new C)[Symbol.iterator];
diff --git a/tests/baselines/reference/ES5SymbolProperty3.js b/tests/baselines/reference/ES5SymbolProperty3.js
index 084f79bd077f2..aa8858d628160 100644
--- a/tests/baselines/reference/ES5SymbolProperty3.js
+++ b/tests/baselines/reference/ES5SymbolProperty3.js
@@ -8,11 +8,27 @@ class C {
 (new C)[Symbol.iterator]
 
 //// [ES5SymbolProperty3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Symbol;
 var C = (function () {
     function C() {
     }
-    C.prototype[Symbol.iterator] = function () { };
+    C.prototype[_a = Symbol.iterator] = function () { };
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }());
 (new C)[Symbol.iterator];
diff --git a/tests/baselines/reference/ES5SymbolProperty4.js b/tests/baselines/reference/ES5SymbolProperty4.js
index eca71ac989c00..445d2c287a8dc 100644
--- a/tests/baselines/reference/ES5SymbolProperty4.js
+++ b/tests/baselines/reference/ES5SymbolProperty4.js
@@ -8,11 +8,27 @@ class C {
 (new C)[Symbol.iterator]
 
 //// [ES5SymbolProperty4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Symbol;
 var C = (function () {
     function C() {
     }
-    C.prototype[Symbol.iterator] = function () { };
+    C.prototype[_a = Symbol.iterator] = function () { };
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }());
 (new C)[Symbol.iterator];
diff --git a/tests/baselines/reference/ES5SymbolProperty5.js b/tests/baselines/reference/ES5SymbolProperty5.js
index 828d29abbfb02..7080a4731c575 100644
--- a/tests/baselines/reference/ES5SymbolProperty5.js
+++ b/tests/baselines/reference/ES5SymbolProperty5.js
@@ -8,11 +8,27 @@ class C {
 (new C)[Symbol.iterator](0) // Should error
 
 //// [ES5SymbolProperty5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Symbol;
 var C = (function () {
     function C() {
     }
-    C.prototype[Symbol.iterator] = function () { };
+    C.prototype[_a = Symbol.iterator] = function () { };
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }());
 (new C)[Symbol.iterator](0); // Should error
diff --git a/tests/baselines/reference/ES5SymbolProperty6.js b/tests/baselines/reference/ES5SymbolProperty6.js
index 1a9ab2734119d..227b858ae1533 100644
--- a/tests/baselines/reference/ES5SymbolProperty6.js
+++ b/tests/baselines/reference/ES5SymbolProperty6.js
@@ -6,10 +6,26 @@ class C {
 (new C)[Symbol.iterator]
 
 //// [ES5SymbolProperty6.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
-    C.prototype[Symbol.iterator] = function () { };
+    C.prototype[_a = Symbol.iterator] = function () { };
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }());
 (new C)[Symbol.iterator];
diff --git a/tests/baselines/reference/ES5SymbolProperty7.js b/tests/baselines/reference/ES5SymbolProperty7.js
index 439a2b5bd0ea3..dab10c6ed9382 100644
--- a/tests/baselines/reference/ES5SymbolProperty7.js
+++ b/tests/baselines/reference/ES5SymbolProperty7.js
@@ -8,11 +8,27 @@ class C {
 (new C)[Symbol.iterator]
 
 //// [ES5SymbolProperty7.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Symbol;
 var C = (function () {
     function C() {
     }
-    C.prototype[Symbol.iterator] = function () { };
+    C.prototype[_a = Symbol.iterator] = function () { };
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }());
 (new C)[Symbol.iterator];
diff --git a/tests/baselines/reference/ExportClassWhichExtendsInterfaceWithInaccessibleType.js b/tests/baselines/reference/ExportClassWhichExtendsInterfaceWithInaccessibleType.js
index 0d8fbb8eb30e9..df1341194dca7 100644
--- a/tests/baselines/reference/ExportClassWhichExtendsInterfaceWithInaccessibleType.js
+++ b/tests/baselines/reference/ExportClassWhichExtendsInterfaceWithInaccessibleType.js
@@ -20,6 +20,20 @@ module A {
 
 
 //// [ExportClassWhichExtendsInterfaceWithInaccessibleType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A;
 (function (A) {
     var Point2d = (function () {
@@ -30,6 +44,7 @@ var A;
         Point2d.prototype.fromOrigin = function (p) {
             return 1;
         };
+        __names(Point2d.prototype, ["fromOrigin"]);
         return Point2d;
     }());
     A.Point2d = Point2d;
diff --git a/tests/baselines/reference/Protected4.js b/tests/baselines/reference/Protected4.js
index 098fe70118da1..76c6cd2ce2f1f 100644
--- a/tests/baselines/reference/Protected4.js
+++ b/tests/baselines/reference/Protected4.js
@@ -4,9 +4,24 @@ class C {
 }
 
 //// [Protected4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.m = function () { };
+    __names(C.prototype, ["m"]);
     return C;
 }());
diff --git a/tests/baselines/reference/Protected7.js b/tests/baselines/reference/Protected7.js
index 5232d932e9d30..7f80771561a58 100644
--- a/tests/baselines/reference/Protected7.js
+++ b/tests/baselines/reference/Protected7.js
@@ -4,9 +4,24 @@ class C {
 }
 
 //// [Protected7.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.m = function () { };
+    __names(C.prototype, ["m"]);
     return C;
 }());
diff --git a/tests/baselines/reference/TwoInternalModulesThatMergeEachWithExportedAndNonExportedClassesOfTheSameName.js b/tests/baselines/reference/TwoInternalModulesThatMergeEachWithExportedAndNonExportedClassesOfTheSameName.js
index 4c5ea297d27ee..e6b607eb82a13 100644
--- a/tests/baselines/reference/TwoInternalModulesThatMergeEachWithExportedAndNonExportedClassesOfTheSameName.js
+++ b/tests/baselines/reference/TwoInternalModulesThatMergeEachWithExportedAndNonExportedClassesOfTheSameName.js
@@ -41,6 +41,20 @@ var l: X.Y.Z.Line;
 
 
 //// [TwoInternalModulesThatMergeEachWithExportedAndNonExportedClassesOfTheSameName.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A;
 (function (A) {
     var Point = (function () {
@@ -57,6 +71,7 @@ var A;
         Point.prototype.fromCarthesian = function (p) {
             return { x: p.x, y: p.y };
         };
+        __names(Point.prototype, ["fromCarthesian"]);
         return Point;
     }());
 })(A || (A = {}));
diff --git a/tests/baselines/reference/abstractProperty.js b/tests/baselines/reference/abstractProperty.js
index f4b2d432f24af..e7d7888405e21 100644
--- a/tests/baselines/reference/abstractProperty.js
+++ b/tests/baselines/reference/abstractProperty.js
@@ -32,6 +32,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var B = (function () {
     function B() {
     }
@@ -52,5 +66,6 @@ var C = (function (_super) {
         configurable: true
     });
     C.prototype.m = function () { };
+    __names(C.prototype, ["m"]);
     return C;
 }(B));
diff --git a/tests/baselines/reference/accessInstanceMemberFromStaticMethod01.js b/tests/baselines/reference/accessInstanceMemberFromStaticMethod01.js
index 763be0568dcc8..3703c8a5f1721 100644
--- a/tests/baselines/reference/accessInstanceMemberFromStaticMethod01.js
+++ b/tests/baselines/reference/accessInstanceMemberFromStaticMethod01.js
@@ -8,11 +8,26 @@ class C {
 }
 
 //// [accessInstanceMemberFromStaticMethod01.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.bar = function () {
         var k = foo;
     };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/accessOverriddenBaseClassMember1.js b/tests/baselines/reference/accessOverriddenBaseClassMember1.js
index 1fdf137a7e751..6679aeb8f37ae 100644
--- a/tests/baselines/reference/accessOverriddenBaseClassMember1.js
+++ b/tests/baselines/reference/accessOverriddenBaseClassMember1.js
@@ -16,6 +16,20 @@ class ColoredPoint extends Point {
 
 
 //// [accessOverriddenBaseClassMember1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -34,6 +48,7 @@ var Point = (function () {
     Point.prototype.toString = function () {
         return "x=" + this.x + " y=" + this.y;
     };
+    __names(Point.prototype, ["toString"]);
     return Point;
 }());
 var ColoredPoint = (function (_super) {
@@ -46,5 +61,6 @@ var ColoredPoint = (function (_super) {
     ColoredPoint.prototype.toString = function () {
         return _super.prototype.toString.call(this) + " color=" + this.color;
     };
+    __names(ColoredPoint.prototype, ["toString"]);
     return ColoredPoint;
 }(Point));
diff --git a/tests/baselines/reference/accessibilityModifiers.js b/tests/baselines/reference/accessibilityModifiers.js
index ef092976ba8a0..eafe71a0b1523 100644
--- a/tests/baselines/reference/accessibilityModifiers.js
+++ b/tests/baselines/reference/accessibilityModifiers.js
@@ -45,6 +45,20 @@ class E {
 
 
 //// [accessibilityModifiers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // No errors
 var C = (function () {
     function C() {
@@ -138,5 +152,6 @@ var E = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(E.prototype, ["method"]);
     return E;
 }());
diff --git a/tests/baselines/reference/ambiguousCallsWhereReturnTypesAgree.js b/tests/baselines/reference/ambiguousCallsWhereReturnTypesAgree.js
index 06a558d1ba5e3..5331718d748fd 100644
--- a/tests/baselines/reference/ambiguousCallsWhereReturnTypesAgree.js
+++ b/tests/baselines/reference/ambiguousCallsWhereReturnTypesAgree.js
@@ -29,6 +29,20 @@ class TestClass2 {
 
 
 //// [ambiguousCallsWhereReturnTypesAgree.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var TestClass = (function () {
     function TestClass() {
     }
@@ -37,6 +51,7 @@ var TestClass = (function () {
     TestClass.prototype.foo = function (x) {
         this.bar(x); // should not error
     };
+    __names(TestClass.prototype, ["bar", "foo"]);
     return TestClass;
 }());
 var TestClass2 = (function () {
@@ -48,5 +63,6 @@ var TestClass2 = (function () {
     TestClass2.prototype.foo = function (x) {
         return this.bar(x); // should not error
     };
+    __names(TestClass2.prototype, ["bar", "foo"]);
     return TestClass2;
 }());
diff --git a/tests/baselines/reference/anonterface.js b/tests/baselines/reference/anonterface.js
index 041b90cb56cec..3659301015dbb 100644
--- a/tests/baselines/reference/anonterface.js
+++ b/tests/baselines/reference/anonterface.js
@@ -15,6 +15,20 @@ c.m(function(n) { return "hello: "+n; },18);
 
 
 //// [anonterface.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var C = (function () {
@@ -23,6 +37,7 @@ var M;
         C.prototype.m = function (fn, n2) {
             return fn(n2);
         };
+        __names(C.prototype, ["m"]);
         return C;
     }());
     M.C = C;
diff --git a/tests/baselines/reference/anonymousClassExpression2.js b/tests/baselines/reference/anonymousClassExpression2.js
index a1da8d5fb10a9..091849f1e4b8f 100644
--- a/tests/baselines/reference/anonymousClassExpression2.js
+++ b/tests/baselines/reference/anonymousClassExpression2.js
@@ -19,6 +19,20 @@ while (0) {
 
 
 //// [anonymousClassExpression2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // Fixes #14860
 // note: repros with `while (0);` too
 // but it's less inscrutable and more obvious to put it *inside* the loop
@@ -29,6 +43,7 @@ while (0) {
         A.prototype.methodA = function () {
             this; //note: a this reference of some kind is required to trigger the bug
         };
+        __names(A.prototype, ["methodA"]);
         return A;
     }());
     var B = (function () {
@@ -38,6 +53,7 @@ while (0) {
             this.methodA; // error
             this.methodB; // ok
         };
+        __names(B.prototype, ["methodB"]);
         return B;
     }());
 }
diff --git a/tests/baselines/reference/argsInScope.js b/tests/baselines/reference/argsInScope.js
index a38bc77803980..d5f922d418dcf 100644
--- a/tests/baselines/reference/argsInScope.js
+++ b/tests/baselines/reference/argsInScope.js
@@ -12,6 +12,20 @@ c.P(1,2,3);
 
 
 //// [argsInScope.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -20,6 +34,7 @@ var C = (function () {
             // WScript.Echo("param: " + arguments[i]);
         }
     };
+    __names(C.prototype, ["P"]);
     return C;
 }());
 var c = new C();
diff --git a/tests/baselines/reference/arrayAssignmentTest1.js b/tests/baselines/reference/arrayAssignmentTest1.js
index 511d37b175222..a1ca1842bb07b 100644
--- a/tests/baselines/reference/arrayAssignmentTest1.js
+++ b/tests/baselines/reference/arrayAssignmentTest1.js
@@ -86,6 +86,20 @@ arr_any = c3; // should be an error - is
 arr_any = i1; // should be an error - is
 
 //// [arrayAssignmentTest1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -101,6 +115,7 @@ var C1 = (function () {
     }
     C1.prototype.IM1 = function () { return null; };
     C1.prototype.C1M1 = function () { return null; };
+    __names(C1.prototype, ["IM1", "C1M1"]);
     return C1;
 }());
 var C2 = (function (_super) {
@@ -109,12 +124,14 @@ var C2 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     C2.prototype.C2M1 = function () { return null; };
+    __names(C2.prototype, ["C2M1"]);
     return C2;
 }(C1));
 var C3 = (function () {
     function C3() {
     }
     C3.prototype.CM3M1 = function () { return 3; };
+    __names(C3.prototype, ["CM3M1"]);
     return C3;
 }());
 /*
diff --git a/tests/baselines/reference/arrayAssignmentTest2.js b/tests/baselines/reference/arrayAssignmentTest2.js
index 233ea1b115903..7fd17596bb376 100644
--- a/tests/baselines/reference/arrayAssignmentTest2.js
+++ b/tests/baselines/reference/arrayAssignmentTest2.js
@@ -60,6 +60,20 @@ arr_any = i1; // should be an error - is
 
 
 //// [arrayAssignmentTest2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -75,6 +89,7 @@ var C1 = (function () {
     }
     C1.prototype.IM1 = function () { return null; };
     C1.prototype.C1M1 = function () { return null; };
+    __names(C1.prototype, ["IM1", "C1M1"]);
     return C1;
 }());
 var C2 = (function (_super) {
@@ -83,12 +98,14 @@ var C2 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     C2.prototype.C2M1 = function () { return null; };
+    __names(C2.prototype, ["C2M1"]);
     return C2;
 }(C1));
 var C3 = (function () {
     function C3() {
     }
     C3.prototype.CM3M1 = function () { return 3; };
+    __names(C3.prototype, ["CM3M1"]);
     return C3;
 }());
 /*
diff --git a/tests/baselines/reference/arrayAssignmentTest4.js b/tests/baselines/reference/arrayAssignmentTest4.js
index 31e826a06412f..768671803b426 100644
--- a/tests/baselines/reference/arrayAssignmentTest4.js
+++ b/tests/baselines/reference/arrayAssignmentTest4.js
@@ -25,10 +25,25 @@ arr_any = c3; // should be an error - is
 
 
 //// [arrayAssignmentTest4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C3 = (function () {
     function C3() {
     }
     C3.prototype.CM3M1 = function () { return 3; };
+    __names(C3.prototype, ["CM3M1"]);
     return C3;
 }());
 /*
diff --git a/tests/baselines/reference/arrayAssignmentTest5.js b/tests/baselines/reference/arrayAssignmentTest5.js
index f5bd3e882b562..f43e5072841cb 100644
--- a/tests/baselines/reference/arrayAssignmentTest5.js
+++ b/tests/baselines/reference/arrayAssignmentTest5.js
@@ -34,6 +34,20 @@ module Test {
 
 
 //// [arrayAssignmentTest5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Test;
 (function (Test) {
     var Bug = (function () {
@@ -49,6 +63,7 @@ var Test;
         Bug.prototype.tokenize = function (line, state, includeStates) {
             return null;
         };
+        __names(Bug.prototype, ["onEnter", "tokenize"]);
         return Bug;
     }());
     Test.Bug = Bug;
diff --git a/tests/baselines/reference/arrayAssignmentTest6.js b/tests/baselines/reference/arrayAssignmentTest6.js
index 1e24137ddbaf0..5ff3058351be2 100644
--- a/tests/baselines/reference/arrayAssignmentTest6.js
+++ b/tests/baselines/reference/arrayAssignmentTest6.js
@@ -21,6 +21,20 @@ module Test {
 
 
 //// [arrayAssignmentTest6.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Test;
 (function (Test) {
     var Bug = (function () {
@@ -29,6 +43,7 @@ var Test;
         Bug.prototype.tokenize = function (line, tokens, includeStates) {
             return null;
         };
+        __names(Bug.prototype, ["tokenize"]);
         return Bug;
     }());
     Test.Bug = Bug;
diff --git a/tests/baselines/reference/arrayBestCommonTypes.js b/tests/baselines/reference/arrayBestCommonTypes.js
index 3a0ab1a5cf5ab..2beb7fca153b1 100644
--- a/tests/baselines/reference/arrayBestCommonTypes.js
+++ b/tests/baselines/reference/arrayBestCommonTypes.js
@@ -118,6 +118,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var EmptyTypes;
 (function (EmptyTypes) {
     var base = (function () {
@@ -174,6 +188,7 @@ var EmptyTypes;
             var b3 = [baseObj, ifaceObj, base2Obj];
             var b4 = [ifaceObj, baseObj, base2Obj];
         };
+        __names(f.prototype, ["voidIfAny", "x"]);
         return f;
     }());
 })(EmptyTypes || (EmptyTypes = {}));
@@ -233,6 +248,7 @@ var NonEmptyTypes;
             var b3 = [baseObj, ifaceObj, base2Obj];
             var b4 = [ifaceObj, baseObj, base2Obj];
         };
+        __names(f.prototype, ["voidIfAny", "x"]);
         return f;
     }());
 })(NonEmptyTypes || (NonEmptyTypes = {}));
diff --git a/tests/baselines/reference/arrayOfExportedClass.js b/tests/baselines/reference/arrayOfExportedClass.js
index f305aacbe65f7..ef4bd8cfa70f0 100644
--- a/tests/baselines/reference/arrayOfExportedClass.js
+++ b/tests/baselines/reference/arrayOfExportedClass.js
@@ -34,12 +34,27 @@ var Car = (function () {
 module.exports = Car;
 //// [arrayOfExportedClass_1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Road = (function () {
     function Road() {
     }
     Road.prototype.AddCars = function (cars) {
         this.cars = cars;
     };
+    __names(Road.prototype, ["AddCars"]);
     return Road;
 }());
 module.exports = Road;
diff --git a/tests/baselines/reference/arrayReferenceWithoutTypeArgs.js b/tests/baselines/reference/arrayReferenceWithoutTypeArgs.js
index 3d427bfa9b42d..a5300c94ff796 100644
--- a/tests/baselines/reference/arrayReferenceWithoutTypeArgs.js
+++ b/tests/baselines/reference/arrayReferenceWithoutTypeArgs.js
@@ -4,9 +4,24 @@ class X {
 }
 
 //// [arrayReferenceWithoutTypeArgs.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var X = (function () {
     function X() {
     }
     X.prototype.f = function (a) { };
+    __names(X.prototype, ["f"]);
     return X;
 }());
diff --git a/tests/baselines/reference/arrayconcat.js b/tests/baselines/reference/arrayconcat.js
index 76250642a599a..78b9d75a0073d 100644
--- a/tests/baselines/reference/arrayconcat.js
+++ b/tests/baselines/reference/arrayconcat.js
@@ -29,6 +29,20 @@ class parser {
 }
 
 //// [arrayconcat.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var parser = (function () {
     function parser() {
     }
@@ -47,5 +61,6 @@ var parser = (function () {
             }
         });
     };
+    __names(parser.prototype, ["m"]);
     return parser;
 }());
diff --git a/tests/baselines/reference/arrowFunctionExpressions.js b/tests/baselines/reference/arrowFunctionExpressions.js
index 66f53d32dba9a..418a3f1079b90 100644
--- a/tests/baselines/reference/arrowFunctionExpressions.js
+++ b/tests/baselines/reference/arrowFunctionExpressions.js
@@ -100,6 +100,20 @@ function tryCatchFn() {
 
 
 //// [arrowFunctionExpressions.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // ArrowFormalParameters => AssignmentExpression is equivalent to ArrowFormalParameters => { return AssignmentExpression; }
 var a = function (p) { return p.length; };
 var a = function (p) { return p.length; };
@@ -155,6 +169,7 @@ var MyClass = (function () {
         var m = function (n) { return n + 1; };
         var p = function (n) { return n && _this; };
     };
+    __names(MyClass.prototype, ["fn"]);
     return MyClass;
 }());
 // Arrow function used in arrow function
diff --git a/tests/baselines/reference/asiAbstract.js b/tests/baselines/reference/asiAbstract.js
index c17e1911e4ed9..f8cb55f61512d 100644
--- a/tests/baselines/reference/asiAbstract.js
+++ b/tests/baselines/reference/asiAbstract.js
@@ -16,6 +16,20 @@ class C3 {
 
 
 //// [asiAbstract.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 abstract;
 var NonAbstractClass = (function () {
     function NonAbstractClass() {
@@ -27,6 +41,7 @@ var C2 = (function () {
     }
     C2.prototype.nonAbstractFunction = function () {
     };
+    __names(C2.prototype, ["nonAbstractFunction"]);
     return C2;
 }());
 var C3 = (function () {
diff --git a/tests/baselines/reference/asiInES6Classes.js b/tests/baselines/reference/asiInES6Classes.js
index d315809d25676..48bd24a8447e6 100644
--- a/tests/baselines/reference/asiInES6Classes.js
+++ b/tests/baselines/reference/asiInES6Classes.js
@@ -23,6 +23,20 @@ class Foo {
 
 
 //// [asiInES6Classes.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
         this.defaults = {
@@ -32,5 +46,6 @@ var Foo = (function () {
     Foo.prototype.bar = function () {
         return 3;
     };
+    __names(Foo.prototype, ["bar"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/asiPublicPrivateProtected.js b/tests/baselines/reference/asiPublicPrivateProtected.js
index 12faef5316b6c..281a94b1c65fb 100644
--- a/tests/baselines/reference/asiPublicPrivateProtected.js
+++ b/tests/baselines/reference/asiPublicPrivateProtected.js
@@ -41,12 +41,27 @@ class ClassWithThreeMembers {
 
 
 //// [asiPublicPrivateProtected.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 public;
 var NonPublicClass = (function () {
     function NonPublicClass() {
     }
     NonPublicClass.prototype.s = function () {
     };
+    __names(NonPublicClass.prototype, ["s"]);
     return NonPublicClass;
 }());
 var NonPublicClass2 = (function () {
@@ -54,6 +69,7 @@ var NonPublicClass2 = (function () {
     }
     NonPublicClass2.prototype.nonPublicFunction = function () {
     };
+    __names(NonPublicClass2.prototype, ["nonPublicFunction"]);
     return NonPublicClass2;
 }());
 private;
@@ -62,6 +78,7 @@ var NonPrivateClass = (function () {
     }
     NonPrivateClass.prototype.s = function () {
     };
+    __names(NonPrivateClass.prototype, ["s"]);
     return NonPrivateClass;
 }());
 var NonPrivateClass2 = (function () {
@@ -69,6 +86,7 @@ var NonPrivateClass2 = (function () {
     }
     NonPrivateClass2.prototype.nonPrivateFunction = function () {
     };
+    __names(NonPrivateClass2.prototype, ["nonPrivateFunction"]);
     return NonPrivateClass2;
 }());
 protected;
@@ -77,6 +95,7 @@ var NonProtectedClass = (function () {
     }
     NonProtectedClass.prototype.s = function () {
     };
+    __names(NonProtectedClass.prototype, ["s"]);
     return NonProtectedClass;
 }());
 var NonProtectedClass2 = (function () {
@@ -84,6 +103,7 @@ var NonProtectedClass2 = (function () {
     }
     NonProtectedClass2.prototype.nonProtectedFunction = function () {
     };
+    __names(NonProtectedClass2.prototype, ["nonProtectedFunction"]);
     return NonProtectedClass2;
 }());
 var ClassWithThreeMembers = (function () {
diff --git a/tests/baselines/reference/assertInWrapSomeTypeParameter.js b/tests/baselines/reference/assertInWrapSomeTypeParameter.js
index 698ba439ab72f..d2c45d5f9ffbb 100644
--- a/tests/baselines/reference/assertInWrapSomeTypeParameter.js
+++ b/tests/baselines/reference/assertInWrapSomeTypeParameter.js
@@ -6,11 +6,26 @@ class C<T extends C<T>> {
 }
 
 //// [assertInWrapSomeTypeParameter.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) {
         return null;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/assignToExistingClass.js b/tests/baselines/reference/assignToExistingClass.js
index 3e21479186ded..4c70dc5db5dd8 100644
--- a/tests/baselines/reference/assignToExistingClass.js
+++ b/tests/baselines/reference/assignToExistingClass.js
@@ -16,6 +16,20 @@ module Test {
 
 
 //// [assignToExistingClass.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Test;
 (function (Test) {
     var Mocked = (function () {
@@ -31,6 +45,7 @@ var Test;
                 return { myProp: "test" };
             };
         };
+        __names(Tester.prototype, ["willThrowError"]);
         return Tester;
     }());
 })(Test || (Test = {}));
diff --git a/tests/baselines/reference/assignmentCompatInterfaceWithStringIndexSignature.js b/tests/baselines/reference/assignmentCompatInterfaceWithStringIndexSignature.js
index 68d14d9f0c81d..611796e23648a 100644
--- a/tests/baselines/reference/assignmentCompatInterfaceWithStringIndexSignature.js
+++ b/tests/baselines/reference/assignmentCompatInterfaceWithStringIndexSignature.js
@@ -17,10 +17,25 @@ Biz(new Foo());
 
 
 //// [assignmentCompatInterfaceWithStringIndexSignature.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
     Foo.prototype.Boz = function () { };
+    __names(Foo.prototype, ["Boz"]);
     return Foo;
 }());
 function Biz(map) { }
diff --git a/tests/baselines/reference/assignmentLHSIsValue.js b/tests/baselines/reference/assignmentLHSIsValue.js
index 34e0df7cacd88..6ac57acd08e41 100644
--- a/tests/baselines/reference/assignmentLHSIsValue.js
+++ b/tests/baselines/reference/assignmentLHSIsValue.js
@@ -71,6 +71,20 @@ foo() = value;
 (foo()) = value;
 
 //// [assignmentLHSIsValue.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -90,6 +104,7 @@ var C = (function () {
     }
     C.prototype.foo = function () { this = value; };
     C.sfoo = function () { this = value; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 function foo() { this = value; }
@@ -129,6 +144,7 @@ var Derived = (function (_super) {
     }
     Derived.prototype.foo = function () { _super.prototype. = value; };
     Derived.sfoo = function () { _super. = value; };
+    __names(Derived.prototype, ["foo"]);
     return Derived;
 }(C));
 // function expression
diff --git a/tests/baselines/reference/asyncArrowFunctionCapturesArguments_es5.js b/tests/baselines/reference/asyncArrowFunctionCapturesArguments_es5.js
index e73ef6ddd4d78..20ce30e6692ca 100644
--- a/tests/baselines/reference/asyncArrowFunctionCapturesArguments_es5.js
+++ b/tests/baselines/reference/asyncArrowFunctionCapturesArguments_es5.js
@@ -21,5 +21,6 @@ var C = (function () {
             }
         }); }); };
     };
+    __names(C.prototype, ["method"]);
     return C;
 }());
diff --git a/tests/baselines/reference/asyncArrowFunctionCapturesThis_es5.js b/tests/baselines/reference/asyncArrowFunctionCapturesThis_es5.js
index 5c9727bddabeb..220192b9211f3 100644
--- a/tests/baselines/reference/asyncArrowFunctionCapturesThis_es5.js
+++ b/tests/baselines/reference/asyncArrowFunctionCapturesThis_es5.js
@@ -19,5 +19,6 @@ var C = (function () {
             }
         }); }); };
     };
+    __names(C.prototype, ["method"]);
     return C;
 }());
diff --git a/tests/baselines/reference/asyncAwaitIsolatedModules_es5.js b/tests/baselines/reference/asyncAwaitIsolatedModules_es5.js
index 335bd8a340ec9..13a4aa91eea53 100644
--- a/tests/baselines/reference/asyncAwaitIsolatedModules_es5.js
+++ b/tests/baselines/reference/asyncAwaitIsolatedModules_es5.js
@@ -41,6 +41,20 @@ module M {
 
 //// [asyncAwaitIsolatedModules_es5.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
     return new (P || (P = Promise))(function (resolve, reject) {
         function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -180,6 +194,7 @@ var C = (function () {
             return [2 /*return*/];
         }); });
     };
+    __names(C.prototype, ["m1", "m2", "m3"]);
     return C;
 }());
 var M;
diff --git a/tests/baselines/reference/asyncAwait_es5.js b/tests/baselines/reference/asyncAwait_es5.js
index f49f4472b133d..6491e06e906ec 100644
--- a/tests/baselines/reference/asyncAwait_es5.js
+++ b/tests/baselines/reference/asyncAwait_es5.js
@@ -40,6 +40,20 @@ module M {
 }
 
 //// [asyncAwait_es5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
     return new (P || (P = Promise))(function (resolve, reject) {
         function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -177,6 +191,7 @@ var C = (function () {
             return [2 /*return*/];
         }); });
     };
+    __names(C.prototype, ["m1", "m2", "m3"]);
     return C;
 }());
 var M;
diff --git a/tests/baselines/reference/asyncFunctionDeclarationCapturesArguments_es5.js b/tests/baselines/reference/asyncFunctionDeclarationCapturesArguments_es5.js
index 8881ad555a762..8f2c8d17b3de2 100644
--- a/tests/baselines/reference/asyncFunctionDeclarationCapturesArguments_es5.js
+++ b/tests/baselines/reference/asyncFunctionDeclarationCapturesArguments_es5.js
@@ -28,5 +28,6 @@ var C = (function () {
             });
         }
     };
+    __names(C.prototype, ["method"]);
     return C;
 }());
diff --git a/tests/baselines/reference/asyncImportedPromise_es5.js b/tests/baselines/reference/asyncImportedPromise_es5.js
index 8a6ec4240caf0..1657952b7bdf2 100644
--- a/tests/baselines/reference/asyncImportedPromise_es5.js
+++ b/tests/baselines/reference/asyncImportedPromise_es5.js
@@ -32,6 +32,20 @@ var Task = (function (_super) {
 exports.Task = Task;
 //// [test.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
     return new (P || (P = Promise))(function (resolve, reject) {
         function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -77,5 +91,6 @@ var Test = (function () {
             return [2 /*return*/];
         }); });
     };
+    __names(Test.prototype, ["example"]);
     return Test;
 }());
diff --git a/tests/baselines/reference/asyncMethodWithSuper_es5.js b/tests/baselines/reference/asyncMethodWithSuper_es5.js
index c68b1ed036fef..4943900959e81 100644
--- a/tests/baselines/reference/asyncMethodWithSuper_es5.js
+++ b/tests/baselines/reference/asyncMethodWithSuper_es5.js
@@ -56,6 +56,7 @@ var A = (function () {
     }
     A.prototype.x = function () {
     };
+    __names(A.prototype, ["x"]);
     return A;
 }());
 var B = (function (_super) {
@@ -102,5 +103,6 @@ var B = (function (_super) {
             });
         });
     };
+    __names(B.prototype, ["simple", "advanced"]);
     return B;
 }(A));
diff --git a/tests/baselines/reference/augmentedTypesClass.js b/tests/baselines/reference/augmentedTypesClass.js
index b9c263971b3c1..2df6215fa0f65 100644
--- a/tests/baselines/reference/augmentedTypesClass.js
+++ b/tests/baselines/reference/augmentedTypesClass.js
@@ -8,11 +8,26 @@ class c4 { public foo() { } }
 enum c4 { One } // error
 
 //// [augmentedTypesClass.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 //// class then var
 var c1 = (function () {
     function c1() {
     }
     c1.prototype.foo = function () { };
+    __names(c1.prototype, ["foo"]);
     return c1;
 }());
 var c1 = 1; // error
@@ -21,6 +36,7 @@ var c4 = (function () {
     function c4() {
     }
     c4.prototype.foo = function () { };
+    __names(c4.prototype, ["foo"]);
     return c4;
 }());
 (function (c4) {
diff --git a/tests/baselines/reference/augmentedTypesClass2.js b/tests/baselines/reference/augmentedTypesClass2.js
index 0896a03a92558..9f884b4662cb1 100644
--- a/tests/baselines/reference/augmentedTypesClass2.js
+++ b/tests/baselines/reference/augmentedTypesClass2.js
@@ -32,6 +32,20 @@ class c44 {
 
 //// [augmentedTypesClass2.js]
 // Checking class with other things in type space not value space
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // class then interface
 var c11 = (function () {
     function c11() {
@@ -39,6 +53,7 @@ var c11 = (function () {
     c11.prototype.foo = function () {
         return 1;
     };
+    __names(c11.prototype, ["foo"]);
     return c11;
 }());
 // class then class - covered
@@ -49,6 +64,7 @@ var c33 = (function () {
     c33.prototype.foo = function () {
         return 1;
     };
+    __names(c33.prototype, ["foo"]);
     return c33;
 }());
 (function (c33) {
@@ -62,5 +78,6 @@ var c44 = (function () {
     c44.prototype.foo = function () {
         return 1;
     };
+    __names(c44.prototype, ["foo"]);
     return c44;
 }());
diff --git a/tests/baselines/reference/augmentedTypesClass2a.js b/tests/baselines/reference/augmentedTypesClass2a.js
index ba1f26c775d0a..d9210fe443b54 100644
--- a/tests/baselines/reference/augmentedTypesClass2a.js
+++ b/tests/baselines/reference/augmentedTypesClass2a.js
@@ -5,11 +5,26 @@ function c2() { } // error
 var c2 = () => { }
 
 //// [augmentedTypesClass2a.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 //// class then function
 var c2 = (function () {
     function c2() {
     }
     c2.prototype.foo = function () { };
+    __names(c2.prototype, ["foo"]);
     return c2;
 }()); // error
 function c2() { } // error
diff --git a/tests/baselines/reference/augmentedTypesClass3.js b/tests/baselines/reference/augmentedTypesClass3.js
index 3a4877707c680..84967d0911bf8 100644
--- a/tests/baselines/reference/augmentedTypesClass3.js
+++ b/tests/baselines/reference/augmentedTypesClass3.js
@@ -14,17 +14,33 @@ class c5c { public foo() { } }
 //import c5c = require('');
 
 //// [augmentedTypesClass3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // class then module
 var c5 = (function () {
     function c5() {
     }
     c5.prototype.foo = function () { };
+    __names(c5.prototype, ["foo"]);
     return c5;
 }());
 var c5a = (function () {
     function c5a() {
     }
     c5a.prototype.foo = function () { };
+    __names(c5a.prototype, ["foo"]);
     return c5a;
 }());
 (function (c5a) {
@@ -34,6 +50,7 @@ var c5b = (function () {
     function c5b() {
     }
     c5b.prototype.foo = function () { };
+    __names(c5b.prototype, ["foo"]);
     return c5b;
 }());
 (function (c5b) {
@@ -44,6 +61,7 @@ var c5c = (function () {
     function c5c() {
     }
     c5c.prototype.foo = function () { };
+    __names(c5c.prototype, ["foo"]);
     return c5c;
 }());
 //import c5c = require(''); 
diff --git a/tests/baselines/reference/augmentedTypesClass4.js b/tests/baselines/reference/augmentedTypesClass4.js
index e476beadf74d8..1f01bd67cb4ac 100644
--- a/tests/baselines/reference/augmentedTypesClass4.js
+++ b/tests/baselines/reference/augmentedTypesClass4.js
@@ -5,16 +5,32 @@ class c3 { public bar() { } } // error
 
 
 //// [augmentedTypesClass4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 //// class then class
 var c3 = (function () {
     function c3() {
     }
     c3.prototype.foo = function () { };
+    __names(c3.prototype, ["foo"]);
     return c3;
 }()); // error
 var c3 = (function () {
     function c3() {
     }
     c3.prototype.bar = function () { };
+    __names(c3.prototype, ["bar"]);
     return c3;
 }()); // error
diff --git a/tests/baselines/reference/augmentedTypesEnum.js b/tests/baselines/reference/augmentedTypesEnum.js
index 406c1a3bf6936..03ad8f49f8cfd 100644
--- a/tests/baselines/reference/augmentedTypesEnum.js
+++ b/tests/baselines/reference/augmentedTypesEnum.js
@@ -36,6 +36,20 @@ module e6b { export var y = 2; } // should be error
 //import e7 = require(''); // should be error
 
 //// [augmentedTypesEnum.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // enum then var
 var e1111;
 (function (e1111) {
@@ -62,6 +76,7 @@ var e4 = (function () {
     function e4() {
     }
     e4.prototype.foo = function () { };
+    __names(e4.prototype, ["foo"]);
     return e4;
 }()); // error
 // enum then enum
diff --git a/tests/baselines/reference/augmentedTypesEnum2.js b/tests/baselines/reference/augmentedTypesEnum2.js
index be174423d1da3..785bf63ef10f6 100644
--- a/tests/baselines/reference/augmentedTypesEnum2.js
+++ b/tests/baselines/reference/augmentedTypesEnum2.js
@@ -20,6 +20,20 @@ class e2 { // error
 //enum then import - covered
 
 //// [augmentedTypesEnum2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // enum then interface
 var e1;
 (function (e1) {
@@ -38,6 +52,7 @@ var e2 = (function () {
     e2.prototype.foo = function () {
         return 1;
     };
+    __names(e2.prototype, ["foo"]);
     return e2;
 }());
 //enum then enum - covered
diff --git a/tests/baselines/reference/augmentedTypesExternalModule1.js b/tests/baselines/reference/augmentedTypesExternalModule1.js
index 0a8b7404bd1c5..fa3ceebf95cbd 100644
--- a/tests/baselines/reference/augmentedTypesExternalModule1.js
+++ b/tests/baselines/reference/augmentedTypesExternalModule1.js
@@ -4,6 +4,20 @@ class c5 { public foo() { } }
 module c5 { } // should be ok everywhere
 
 //// [augmentedTypesExternalModule1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -12,6 +26,7 @@ define(["require", "exports"], function (require, exports) {
         function c5() {
         }
         c5.prototype.foo = function () { };
+        __names(c5.prototype, ["foo"]);
         return c5;
     }());
 });
diff --git a/tests/baselines/reference/augmentedTypesFunction.js b/tests/baselines/reference/augmentedTypesFunction.js
index 95f91a938d73e..8568e87a32674 100644
--- a/tests/baselines/reference/augmentedTypesFunction.js
+++ b/tests/baselines/reference/augmentedTypesFunction.js
@@ -39,6 +39,20 @@ module y5c { export interface I { foo(): void } } // should be an error
 //import y6 = require('');
 
 //// [augmentedTypesFunction.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // function then var
 function y1() { } // error
 var y1 = 1; // error
@@ -59,6 +73,7 @@ var y3a = (function () {
     function y3a() {
     }
     y3a.prototype.foo = function () { };
+    __names(y3a.prototype, ["foo"]);
     return y3a;
 }()); // error
 // function then enum
diff --git a/tests/baselines/reference/augmentedTypesInterface.js b/tests/baselines/reference/augmentedTypesInterface.js
index fb8608aca956a..8f0ac15c0bae5 100644
--- a/tests/baselines/reference/augmentedTypesInterface.js
+++ b/tests/baselines/reference/augmentedTypesInterface.js
@@ -35,12 +35,27 @@ interface i4 {
 
 //// [augmentedTypesInterface.js]
 // interface then interface
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var i2 = (function () {
     function i2() {
     }
     i2.prototype.bar = function () {
         return 1;
     };
+    __names(i2.prototype, ["bar"]);
     return i2;
 }());
 var i3;
diff --git a/tests/baselines/reference/augmentedTypesModules.js b/tests/baselines/reference/augmentedTypesModules.js
index 61dd64174d9bf..c940ed86e3ea3 100644
--- a/tests/baselines/reference/augmentedTypesModules.js
+++ b/tests/baselines/reference/augmentedTypesModules.js
@@ -98,6 +98,20 @@ module m6 { export var y = 2; }
 
 
 //// [augmentedTypesModules.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var m1 = 1; // Should be allowed
 var m1a;
 (function (m1a) {
@@ -116,6 +130,7 @@ var m1d;
         function I() {
         }
         I.prototype.foo = function () { };
+        __names(I.prototype, ["foo"]);
         return I;
     }());
     m1d.I = I;
@@ -150,6 +165,7 @@ function m2g() { }
         function C() {
         }
         C.prototype.foo = function () { };
+        __names(C.prototype, ["foo"]);
         return C;
     }());
     m2g.C = C;
@@ -167,12 +183,14 @@ var m3a = (function () {
     function m3a() {
     }
     m3a.prototype.foo = function () { };
+    __names(m3a.prototype, ["foo"]);
     return m3a;
 }()); // error, class isn't ambient or declared before the module
 var m3b = (function () {
     function m3b() {
     }
     m3b.prototype.foo = function () { };
+    __names(m3b.prototype, ["foo"]);
     return m3b;
 }());
 (function (m3b) {
@@ -182,6 +200,7 @@ var m3c = (function () {
     function m3c() {
     }
     m3c.prototype.foo = function () { };
+    __names(m3c.prototype, ["foo"]);
     return m3c;
 }());
 (function (m3c) {
@@ -201,6 +220,7 @@ var m3g;
         function C() {
         }
         C.prototype.foo = function () { };
+        __names(C.prototype, ["foo"]);
         return C;
     }());
     m3g.C = C;
@@ -232,6 +252,7 @@ var m4d;
         function C() {
         }
         C.prototype.foo = function () { };
+        __names(C.prototype, ["foo"]);
         return C;
     }());
 })(m4d || (m4d = {}));
diff --git a/tests/baselines/reference/augmentedTypesModules2.js b/tests/baselines/reference/augmentedTypesModules2.js
index 9f7d3613d57c3..e3bbc2ca79170 100644
--- a/tests/baselines/reference/augmentedTypesModules2.js
+++ b/tests/baselines/reference/augmentedTypesModules2.js
@@ -29,6 +29,20 @@ module m2g { export class C { foo() { } } }
 
 
 //// [augmentedTypesModules2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function m2() { }
 ; // ok since the module is not instantiated
 var m2a;
@@ -63,6 +77,7 @@ function m2g() { }
         function C() {
         }
         C.prototype.foo = function () { };
+        __names(C.prototype, ["foo"]);
         return C;
     }());
     m2g.C = C;
diff --git a/tests/baselines/reference/augmentedTypesModules3.js b/tests/baselines/reference/augmentedTypesModules3.js
index cb63acd0d3532..cf1ca88d4a997 100644
--- a/tests/baselines/reference/augmentedTypesModules3.js
+++ b/tests/baselines/reference/augmentedTypesModules3.js
@@ -7,6 +7,20 @@ module m3a { var y = 2; }
 class m3a { foo() { } } // error, class isn't ambient or declared before the module
 
 //// [augmentedTypesModules3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var m3 = (function () {
     function m3() {
     }
@@ -20,5 +34,6 @@ var m3a = (function () {
     function m3a() {
     }
     m3a.prototype.foo = function () { };
+    __names(m3a.prototype, ["foo"]);
     return m3a;
 }()); // error, class isn't ambient or declared before the module
diff --git a/tests/baselines/reference/augmentedTypesModules3b.js b/tests/baselines/reference/augmentedTypesModules3b.js
index 02da7b41f2e0f..bc885b86be001 100644
--- a/tests/baselines/reference/augmentedTypesModules3b.js
+++ b/tests/baselines/reference/augmentedTypesModules3b.js
@@ -19,10 +19,25 @@ module m3g { export class C { foo() { } } }
 
 
 //// [augmentedTypesModules3b.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var m3b = (function () {
     function m3b() {
     }
     m3b.prototype.foo = function () { };
+    __names(m3b.prototype, ["foo"]);
     return m3b;
 }());
 (function (m3b) {
@@ -32,6 +47,7 @@ var m3c = (function () {
     function m3c() {
     }
     m3c.prototype.foo = function () { };
+    __names(m3c.prototype, ["foo"]);
     return m3c;
 }());
 (function (m3c) {
@@ -51,6 +67,7 @@ var m3g;
         function C() {
         }
         C.prototype.foo = function () { };
+        __names(C.prototype, ["foo"]);
         return C;
     }());
     m3g.C = C;
diff --git a/tests/baselines/reference/augmentedTypesModules4.js b/tests/baselines/reference/augmentedTypesModules4.js
index 5db6c42d70746..0aa12b48d10bd 100644
--- a/tests/baselines/reference/augmentedTypesModules4.js
+++ b/tests/baselines/reference/augmentedTypesModules4.js
@@ -23,6 +23,20 @@ module m5 { export interface I { foo(): void } } // should already be reasonably
 
 
 //// [augmentedTypesModules4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var m4;
 (function (m4) {
 })(m4 || (m4 = {}));
@@ -50,6 +64,7 @@ var m4d;
         function C() {
         }
         C.prototype.foo = function () { };
+        __names(C.prototype, ["foo"]);
         return C;
     }());
 })(m4d || (m4d = {}));
diff --git a/tests/baselines/reference/augmentedTypesVar.js b/tests/baselines/reference/augmentedTypesVar.js
index f01cfa2e52fa5..0dc90e7ed8057 100644
--- a/tests/baselines/reference/augmentedTypesVar.js
+++ b/tests/baselines/reference/augmentedTypesVar.js
@@ -37,6 +37,20 @@ module x6b { export var y = 2; } // error
 
 
 //// [augmentedTypesVar.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // var then var
 var x1 = 1;
 var x1 = 2;
@@ -57,6 +71,7 @@ var x4a = (function () {
     function x4a() {
     }
     x4a.prototype.foo = function () { };
+    __names(x4a.prototype, ["foo"]);
     return x4a;
 }()); // error
 // var then enum
diff --git a/tests/baselines/reference/autoLift2.js b/tests/baselines/reference/autoLift2.js
index ab2d2107f6ce7..c44e62f67e076 100644
--- a/tests/baselines/reference/autoLift2.js
+++ b/tests/baselines/reference/autoLift2.js
@@ -32,6 +32,20 @@ a.baz();
 
 
 //// [autoLift2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
         this.foo;
@@ -46,6 +60,7 @@ var A = (function () {
         [1, 2].forEach(function (p) { return _this.foo; });
         [1, 2].forEach(function (p) { return _this.bar; });
     };
+    __names(A.prototype, ["baz"]);
     return A;
 }());
 var a = new A();
diff --git a/tests/baselines/reference/autolift4.js b/tests/baselines/reference/autolift4.js
index d784798358e33..c3ab0d4b7ea47 100644
--- a/tests/baselines/reference/autolift4.js
+++ b/tests/baselines/reference/autolift4.js
@@ -24,6 +24,20 @@ class Point3D extends Point {
 
 
 //// [autolift4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -42,6 +56,7 @@ var Point = (function () {
     Point.prototype.getDist = function () {
         return Math.sqrt(this.x * this.x + this.y * this.y);
     };
+    __names(Point.prototype, ["getDist"]);
     Point.origin = new Point(0, 0);
     return Point;
 }());
@@ -55,5 +70,6 @@ var Point3D = (function (_super) {
     Point3D.prototype.getDist = function () {
         return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.m);
     };
+    __names(Point3D.prototype, ["getDist"]);
     return Point3D;
 }(Point));
diff --git a/tests/baselines/reference/avoid.js b/tests/baselines/reference/avoid.js
index 391dab5e9856b..a5695425548d3 100644
--- a/tests/baselines/reference/avoid.js
+++ b/tests/baselines/reference/avoid.js
@@ -20,6 +20,20 @@ var N=new f();  // ok with void fn
 
 
 //// [avoid.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f() {
     var x = 1;
 }
@@ -32,6 +46,7 @@ var C = (function () {
     }
     C.prototype.g = function () {
     };
+    __names(C.prototype, ["g"]);
     return C;
 }());
 var z = new C().g(); // error void fn
diff --git a/tests/baselines/reference/baseCheck.js b/tests/baselines/reference/baseCheck.js
index 2b4f90d27b127..1bf14a65f8f32 100644
--- a/tests/baselines/reference/baseCheck.js
+++ b/tests/baselines/reference/baseCheck.js
@@ -40,6 +40,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(x, y) {
     }
@@ -60,6 +74,7 @@ var ELocVar = (function (_super) {
     ELocVar.prototype.m = function () {
         var loc = 10;
     };
+    __names(ELocVar.prototype, ["m"]);
     return ELocVar;
 }(C));
 var D = (function (_super) {
diff --git a/tests/baselines/reference/baseTypeAfterDerivedType.js b/tests/baselines/reference/baseTypeAfterDerivedType.js
index c4ca7cf7b33a5..b88f393adc3a3 100644
--- a/tests/baselines/reference/baseTypeAfterDerivedType.js
+++ b/tests/baselines/reference/baseTypeAfterDerivedType.js
@@ -17,6 +17,20 @@ interface Base2 {
 
 
 //// [baseTypeAfterDerivedType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Derived2 = (function () {
     function Derived2() {
     }
@@ -26,5 +40,6 @@ var Derived2 = (function () {
             args[_i] = arguments[_i];
         }
     };
+    __names(Derived2.prototype, ["method"]);
     return Derived2;
 }());
diff --git a/tests/baselines/reference/baseTypeWrappingInstantiationChain.js b/tests/baselines/reference/baseTypeWrappingInstantiationChain.js
index 7442d1e0e6a50..1c9e89f2e2b05 100644
--- a/tests/baselines/reference/baseTypeWrappingInstantiationChain.js
+++ b/tests/baselines/reference/baseTypeWrappingInstantiationChain.js
@@ -38,6 +38,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var CBaseBase = (function () {
     function CBaseBase(x) {
     }
@@ -54,6 +68,7 @@ var Parameter = (function () {
     function Parameter() {
     }
     Parameter.prototype.method = function (t) { };
+    __names(Parameter.prototype, ["method"]);
     return Parameter;
 }());
 var Wrapper = (function () {
@@ -73,5 +88,6 @@ var C = (function (_super) {
         new CBase(this); // Should not error, parameter is of type Parameter<Wrapper<T1>>
     };
     C.prototype.method = function (t) { };
+    __names(C.prototype, ["works", "alsoWorks", "method"]);
     return C;
 }(CBase));
diff --git a/tests/baselines/reference/binopAssignmentShouldHaveType.js b/tests/baselines/reference/binopAssignmentShouldHaveType.js
index c590efbcb5a58..bfd238265dd55 100644
--- a/tests/baselines/reference/binopAssignmentShouldHaveType.js
+++ b/tests/baselines/reference/binopAssignmentShouldHaveType.js
@@ -20,6 +20,20 @@ module Test {
 
 
 //// [binopAssignmentShouldHaveType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 "use strict";
 var Test;
 (function (Test) {
@@ -35,6 +49,7 @@ var Test;
                 console.log(name);
             }
         };
+        __names(Bug.prototype, ["getName", "bug"]);
         return Bug;
     }());
     Test.Bug = Bug;
diff --git a/tests/baselines/reference/blockScopedFunctionDeclarationInStrictClass.js b/tests/baselines/reference/blockScopedFunctionDeclarationInStrictClass.js
index 70a00a95a4111..4da34779e29eb 100644
--- a/tests/baselines/reference/blockScopedFunctionDeclarationInStrictClass.js
+++ b/tests/baselines/reference/blockScopedFunctionDeclarationInStrictClass.js
@@ -10,6 +10,20 @@ class c {
 }
 
 //// [blockScopedFunctionDeclarationInStrictClass.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var c = (function () {
     function c() {
     }
@@ -20,5 +34,6 @@ var c = (function () {
         }
         foo(); // not ok
     };
+    __names(c.prototype, ["method"]);
     return c;
 }());
diff --git a/tests/baselines/reference/blockScopedVariablesUseBeforeDef.js b/tests/baselines/reference/blockScopedVariablesUseBeforeDef.js
index 619ee51ce75fc..e0255e543d12b 100644
--- a/tests/baselines/reference/blockScopedVariablesUseBeforeDef.js
+++ b/tests/baselines/reference/blockScopedVariablesUseBeforeDef.js
@@ -104,6 +104,20 @@ function foo14() {
 }
 
 //// [blockScopedVariablesUseBeforeDef.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo0() {
     var a = x;
     var x;
@@ -121,6 +135,7 @@ function foo3() {
         function X() {
         }
         X.prototype.m = function () { return x; };
+        __names(X.prototype, ["m"]);
         return X;
     }());
     var x;
@@ -130,6 +145,7 @@ function foo4() {
         function class_1() {
         }
         class_1.prototype.m = function () { return x; };
+        __names(class_1.prototype, ["m"]);
         return class_1;
     }());
     var x;
diff --git a/tests/baselines/reference/callGenericFunctionWithIncorrectNumberOfTypeArguments.js b/tests/baselines/reference/callGenericFunctionWithIncorrectNumberOfTypeArguments.js
index c40948273a6de..8aa77cb43251c 100644
--- a/tests/baselines/reference/callGenericFunctionWithIncorrectNumberOfTypeArguments.js
+++ b/tests/baselines/reference/callGenericFunctionWithIncorrectNumberOfTypeArguments.js
@@ -47,6 +47,20 @@ var r7b = i2.f<number, string, number>(1, '');
 //// [callGenericFunctionWithIncorrectNumberOfTypeArguments.js]
 // type parameter lists must exactly match type argument lists
 // all of these invocations are errors
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f(x, y) { return null; }
 var r1 = f(1, '');
 var r1b = f(1, '');
@@ -62,6 +76,7 @@ var C = (function () {
     C.prototype.f = function (x, y) {
         return null;
     };
+    __names(C.prototype, ["f"]);
     return C;
 }());
 var r4 = (new C()).f(1, '');
@@ -75,6 +90,7 @@ var C2 = (function () {
     C2.prototype.f = function (x, y) {
         return null;
     };
+    __names(C2.prototype, ["f"]);
     return C2;
 }());
 var r6 = (new C2()).f(1, '');
diff --git a/tests/baselines/reference/callGenericFunctionWithZeroTypeArguments.js b/tests/baselines/reference/callGenericFunctionWithZeroTypeArguments.js
index e78ee62edc5d4..e324c528ef2ae 100644
--- a/tests/baselines/reference/callGenericFunctionWithZeroTypeArguments.js
+++ b/tests/baselines/reference/callGenericFunctionWithZeroTypeArguments.js
@@ -38,6 +38,20 @@ var r7 = i2.f(1);
 
 //// [callGenericFunctionWithZeroTypeArguments.js]
 // valid invocations of generic functions with no explicit type arguments provided 
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f(x) { return null; }
 var r = f(1);
 var f2 = function (x) { return null; };
@@ -50,6 +64,7 @@ var C = (function () {
     C.prototype.f = function (x) {
         return null;
     };
+    __names(C.prototype, ["f"]);
     return C;
 }());
 var r4 = (new C()).f(1);
@@ -61,6 +76,7 @@ var C2 = (function () {
     C2.prototype.f = function (x) {
         return null;
     };
+    __names(C2.prototype, ["f"]);
     return C2;
 }());
 var r6 = (new C2()).f(1);
diff --git a/tests/baselines/reference/callNonGenericFunctionWithTypeArguments.js b/tests/baselines/reference/callNonGenericFunctionWithTypeArguments.js
index dd9a20825101a..de31d2b6a6c41 100644
--- a/tests/baselines/reference/callNonGenericFunctionWithTypeArguments.js
+++ b/tests/baselines/reference/callNonGenericFunctionWithTypeArguments.js
@@ -46,6 +46,20 @@ var r8 = a2<number>();
 //// [callNonGenericFunctionWithTypeArguments.js]
 // it is always illegal to provide type arguments to a non-generic function
 // all invocations here are illegal
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f(x) { return null; }
 var r = f(1);
 var f2 = function (x) { return null; };
@@ -58,6 +72,7 @@ var C = (function () {
     C.prototype.f = function (x) {
         return null;
     };
+    __names(C.prototype, ["f"]);
     return C;
 }());
 var r4 = (new C()).f(1);
@@ -69,6 +84,7 @@ var C2 = (function () {
     C2.prototype.f = function (x) {
         return null;
     };
+    __names(C2.prototype, ["f"]);
     return C2;
 }());
 var r6 = (new C2()).f(1);
diff --git a/tests/baselines/reference/callOverloadViaElementAccessExpression.js b/tests/baselines/reference/callOverloadViaElementAccessExpression.js
index 48f3771206e2b..108b1deb1be29 100644
--- a/tests/baselines/reference/callOverloadViaElementAccessExpression.js
+++ b/tests/baselines/reference/callOverloadViaElementAccessExpression.js
@@ -12,12 +12,27 @@ var r: string = c['foo'](1);
 var r2: number = c['foo']('');
 
 //// [callOverloadViaElementAccessExpression.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) {
         return null;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c = new C();
diff --git a/tests/baselines/reference/callOverloads1.js b/tests/baselines/reference/callOverloads1.js
index 756a9099e4452..6122d36bad581 100644
--- a/tests/baselines/reference/callOverloads1.js
+++ b/tests/baselines/reference/callOverloads1.js
@@ -18,11 +18,26 @@ f1.bar1();
 Foo();
 
 //// [callOverloads1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo(x) {
         // WScript.Echo("Constructor function has executed");
     }
     Foo.prototype.bar1 = function () { };
+    __names(Foo.prototype, ["bar1"]);
     return Foo;
 }());
 function F1(a) { return a; }
diff --git a/tests/baselines/reference/callOverloads2.js b/tests/baselines/reference/callOverloads2.js
index 9762a6e925f96..bbcac35f20085 100644
--- a/tests/baselines/reference/callOverloads2.js
+++ b/tests/baselines/reference/callOverloads2.js
@@ -24,11 +24,26 @@ Foo();
 
 
 //// [callOverloads2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo(x) {
         // WScript.Echo("Constructor function has executed");
     }
     Foo.prototype.bar1 = function () { };
+    __names(Foo.prototype, ["bar1"]);
     return Foo;
 }());
 function F1(s) { return s; } // error
diff --git a/tests/baselines/reference/callOverloads3.js b/tests/baselines/reference/callOverloads3.js
index ecd6a39f5697b..024d946618155 100644
--- a/tests/baselines/reference/callOverloads3.js
+++ b/tests/baselines/reference/callOverloads3.js
@@ -18,11 +18,26 @@ Foo("s");
 
 
 //// [callOverloads3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo(x) {
         // WScript.Echo("Constructor function has executed");
     }
     Foo.prototype.bar1 = function () { };
+    __names(Foo.prototype, ["bar1"]);
     return Foo;
 }());
 //class Foo(s: String);
diff --git a/tests/baselines/reference/callOverloads4.js b/tests/baselines/reference/callOverloads4.js
index ea2bd8572eb3e..35422f36edd4c 100644
--- a/tests/baselines/reference/callOverloads4.js
+++ b/tests/baselines/reference/callOverloads4.js
@@ -18,11 +18,26 @@ Foo("s");
 
 
 //// [callOverloads4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo(x) {
         // WScript.Echo("Constructor function has executed");
     }
     Foo.prototype.bar1 = function () { };
+    __names(Foo.prototype, ["bar1"]);
     return Foo;
 }());
 var f1 = new Foo("hey");
diff --git a/tests/baselines/reference/callOverloads5.js b/tests/baselines/reference/callOverloads5.js
index cf159d309b0f2..79da12c536952 100644
--- a/tests/baselines/reference/callOverloads5.js
+++ b/tests/baselines/reference/callOverloads5.js
@@ -20,11 +20,26 @@ Foo("s");
 
 
 //// [callOverloads5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo(x) {
         // WScript.Echo("Constructor function has executed");
     }
     Foo.prototype.bar1 = function (a) { };
+    __names(Foo.prototype, ["bar1"]);
     return Foo;
 }());
 //class Foo(s: String);
diff --git a/tests/baselines/reference/callSignatureWithOptionalParameterAndInitializer.js b/tests/baselines/reference/callSignatureWithOptionalParameterAndInitializer.js
index 14442dd6e2274..025ca7d42d738 100644
--- a/tests/baselines/reference/callSignatureWithOptionalParameterAndInitializer.js
+++ b/tests/baselines/reference/callSignatureWithOptionalParameterAndInitializer.js
@@ -57,6 +57,20 @@ b.b(1);
 
 //// [callSignatureWithOptionalParameterAndInitializer.js]
 // Optional parameters cannot also have initializer expressions, these are all errors
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x) {
     if (x === void 0) { x = 1; }
 }
@@ -78,6 +92,7 @@ var C = (function () {
     C.prototype.foo = function (x) {
         if (x === void 0) { x = 1; }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/callSignaturesWithAccessibilityModifiersOnParameters.js b/tests/baselines/reference/callSignaturesWithAccessibilityModifiersOnParameters.js
index dba88c4951e21..7fadb09ad6532 100644
--- a/tests/baselines/reference/callSignaturesWithAccessibilityModifiersOnParameters.js
+++ b/tests/baselines/reference/callSignaturesWithAccessibilityModifiersOnParameters.js
@@ -40,6 +40,20 @@ var b = {
 
 //// [callSignaturesWithAccessibilityModifiersOnParameters.js]
 // Call signature parameters do not allow accessibility modifiers
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x, y) { }
 var f = function foo(x, y) { };
 var f2 = function (x, y) { };
@@ -56,6 +70,7 @@ var C = (function () {
     C.prototype.foo = function (x, y) { };
     C.prototype.foo2 = function (x, y) { };
     C.prototype.foo3 = function (x, y) { };
+    __names(C.prototype, ["foo", "foo2", "foo3"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/callSignaturesWithDuplicateParameters.js b/tests/baselines/reference/callSignaturesWithDuplicateParameters.js
index add9e07ea4b83..e2d4feaf236ce 100644
--- a/tests/baselines/reference/callSignaturesWithDuplicateParameters.js
+++ b/tests/baselines/reference/callSignaturesWithDuplicateParameters.js
@@ -40,6 +40,20 @@ var b = {
 
 //// [callSignaturesWithDuplicateParameters.js]
 // Duplicate parameter names are always an error
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x, x) { }
 var f = function foo(x, x) { };
 var f2 = function (x, x) { };
@@ -56,6 +70,7 @@ var C = (function () {
     C.prototype.foo = function (x, x) { };
     C.prototype.foo2 = function (x, x) { };
     C.prototype.foo3 = function (x, x) { };
+    __names(C.prototype, ["foo", "foo2", "foo3"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/callSignaturesWithOptionalParameters.js b/tests/baselines/reference/callSignaturesWithOptionalParameters.js
index a0a3835c9432a..da7248d8918c3 100644
--- a/tests/baselines/reference/callSignaturesWithOptionalParameters.js
+++ b/tests/baselines/reference/callSignaturesWithOptionalParameters.js
@@ -57,6 +57,20 @@ b.b(1);
 
 //// [callSignaturesWithOptionalParameters.js]
 // Optional parameters should be valid in all the below casts
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x) { }
 var f = function foo(x) { };
 var f2 = function (x, y) { };
@@ -70,6 +84,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/callSignaturesWithOptionalParameters2.js b/tests/baselines/reference/callSignaturesWithOptionalParameters2.js
index 973b0466a79e1..ceaa857acdec7 100644
--- a/tests/baselines/reference/callSignaturesWithOptionalParameters2.js
+++ b/tests/baselines/reference/callSignaturesWithOptionalParameters2.js
@@ -61,6 +61,20 @@ a.foo(1, 2, 3);
 
 //// [callSignaturesWithOptionalParameters2.js]
 // Optional parameters should be valid in all the below casts
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x) { }
 foo(1);
 foo();
@@ -72,6 +86,7 @@ var C = (function () {
     }
     C.prototype.foo = function (x) { };
     C.prototype.foo2 = function (x, y) { };
+    __names(C.prototype, ["foo", "foo2"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/callSignaturesWithParameterInitializers.js b/tests/baselines/reference/callSignaturesWithParameterInitializers.js
index 8b53d5b29d52f..03ddb17e65ff4 100644
--- a/tests/baselines/reference/callSignaturesWithParameterInitializers.js
+++ b/tests/baselines/reference/callSignaturesWithParameterInitializers.js
@@ -59,6 +59,20 @@ b.b(1);
 
 //// [callSignaturesWithParameterInitializers.js]
 // Optional parameters allow initializers only in implementation signatures
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x) {
     if (x === void 0) { x = 1; }
 }
@@ -80,6 +94,7 @@ var C = (function () {
     C.prototype.foo = function (x) {
         if (x === void 0) { x = 1; }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/callSignaturesWithParameterInitializers2.js b/tests/baselines/reference/callSignaturesWithParameterInitializers2.js
index fd1dd369010eb..a4b5c22c09b36 100644
--- a/tests/baselines/reference/callSignaturesWithParameterInitializers2.js
+++ b/tests/baselines/reference/callSignaturesWithParameterInitializers2.js
@@ -28,6 +28,20 @@ b.foo(1);
 //// [callSignaturesWithParameterInitializers2.js]
 // Optional parameters allow initializers only in implementation signatures
 // All the below declarations are errors
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x) {
     if (x === void 0) { x = 1; }
 }
@@ -39,6 +53,7 @@ var C = (function () {
     C.prototype.foo = function (x) {
         if (x === void 0) { x = 1; }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/callWithSpread.js b/tests/baselines/reference/callWithSpread.js
index 23c1fff2d09e6..b019b2f7152de 100644
--- a/tests/baselines/reference/callWithSpread.js
+++ b/tests/baselines/reference/callWithSpread.js
@@ -59,6 +59,20 @@ class D extends C {
 
 
 //// [callWithSpread.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -113,6 +127,7 @@ var C = (function () {
             z[_i - 2] = arguments[_i];
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function (_super) {
@@ -126,6 +141,7 @@ var D = (function (_super) {
         _super.prototype.foo.call(this, 1, 2);
         _super.prototype.foo.apply(this, [1, 2].concat(a));
     };
+    __names(D.prototype, ["foo"]);
     return D;
 }(C));
 var _a, _b, _c, _d, _e, _f, _g;
diff --git a/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js b/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js
index 98ca7cb47d7e0..9b4dc3ea04b49 100644
--- a/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js
+++ b/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js
@@ -12,6 +12,20 @@ class B extends A {
 }
 
 //// [captureSuperPropertyAccessInSuperCall01.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -26,6 +40,7 @@ var A = (function () {
     function A(f) {
     }
     A.prototype.blah = function () { return ""; };
+    __names(A.prototype, ["blah"]);
     return A;
 }());
 var B = (function (_super) {
diff --git a/tests/baselines/reference/captureThisInSuperCall.js b/tests/baselines/reference/captureThisInSuperCall.js
index ccca2e6562fbc..051495829cb30 100644
--- a/tests/baselines/reference/captureThisInSuperCall.js
+++ b/tests/baselines/reference/captureThisInSuperCall.js
@@ -19,6 +19,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A(p) {
     }
@@ -31,5 +45,6 @@ var B = (function (_super) {
         return _this;
     }
     B.prototype.someMethod = function () { };
+    __names(B.prototype, ["someMethod"]);
     return B;
 }(A));
diff --git a/tests/baselines/reference/capturedLetConstInLoop10.js b/tests/baselines/reference/capturedLetConstInLoop10.js
index 63c114ba6e438..ae6a1ea4b87b5 100644
--- a/tests/baselines/reference/capturedLetConstInLoop10.js
+++ b/tests/baselines/reference/capturedLetConstInLoop10.js
@@ -46,6 +46,20 @@ class B {
 }
 
 //// [capturedLetConstInLoop10.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -100,6 +114,7 @@ var A = (function () {
             _loop_4(x);
         }
     };
+    __names(A.prototype, ["foo", "bar", "baz", "baz2"]);
     return A;
 }());
 var B = (function () {
@@ -120,5 +135,6 @@ var B = (function () {
     };
     B.prototype.bar = function (a) {
     };
+    __names(B.prototype, ["foo", "bar"]);
     return B;
 }());
diff --git a/tests/baselines/reference/capturedLetConstInLoop13.js b/tests/baselines/reference/capturedLetConstInLoop13.js
index a2e0921ab1db9..ed38248394155 100644
--- a/tests/baselines/reference/capturedLetConstInLoop13.js
+++ b/tests/baselines/reference/capturedLetConstInLoop13.js
@@ -23,6 +23,20 @@ class Main {
 new Main();
 
 //// [capturedLetConstInLoop13.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Main = (function () {
     function Main() {
         this.register("a", "b", "c");
@@ -47,6 +61,7 @@ var Main = (function () {
     };
     Main.prototype.bar = function (a) { };
     Main.prototype.foo = function (name) { };
+    __names(Main.prototype, ["register", "bar", "foo"]);
     return Main;
 }());
 new Main();
diff --git a/tests/baselines/reference/capturedLetConstInLoop9.js b/tests/baselines/reference/capturedLetConstInLoop9.js
index 8f88855a9ade7..4270f9f52ed79 100644
--- a/tests/baselines/reference/capturedLetConstInLoop9.js
+++ b/tests/baselines/reference/capturedLetConstInLoop9.js
@@ -139,6 +139,20 @@ function foo3 () {
 }
 
 //// [capturedLetConstInLoop9.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var _loop_1 = function (x) {
     var x_1;
     (function () { return x_1; });
@@ -170,6 +184,7 @@ var _loop_1 = function (x) {
         A.prototype.m = function () {
             return x_1 + 1;
         };
+        __names(A.prototype, ["m"]);
         return A;
     }());
 };
@@ -284,6 +299,7 @@ var C = (function () {
             _loop_5(i);
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 function foo3() {
diff --git a/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js b/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js
index 99bd90139aec6..093c7fe5e5f04 100644
--- a/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js
+++ b/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js
@@ -20,6 +20,20 @@ class C extends B {
 (new Chain(new A)).then(a => new B).then(b => new C).then(c => new B).then(b => new A);
 
 //// [chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -37,6 +51,7 @@ var Chain = (function () {
     Chain.prototype.then = function (cb) {
         return null;
     };
+    __names(Chain.prototype, ["then"]);
     return Chain;
 }());
 var A = (function () {
diff --git a/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.js b/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.js
index 8aa5594701f25..f430c1eac327d 100644
--- a/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.js
+++ b/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.js
@@ -42,6 +42,20 @@ class Chain2<T extends I> {
 }
 
 //// [chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Chain = (function () {
     function Chain(value) {
         this.value = value;
@@ -58,6 +72,7 @@ var Chain = (function () {
         (new Chain(s)).then(function (ss) { return s; }).then(function (ss) { return s; }).then(function (ss) { return s; });
         return null;
     };
+    __names(Chain.prototype, ["then"]);
     return Chain;
 }());
 var Chain2 = (function () {
@@ -77,5 +92,6 @@ var Chain2 = (function () {
         (new Chain2(i)).then(function (ii) { return s; }).then(function (ss) { return s; }).then(function (ss) { return s; }).then(function (ss) { return s; }).value.x = "";
         return null;
     };
+    __names(Chain2.prototype, ["then"]);
     return Chain2;
 }());
diff --git a/tests/baselines/reference/checkJsxChildrenProperty10.js b/tests/baselines/reference/checkJsxChildrenProperty10.js
index f022b28f20c28..c0af8756007f0 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty10.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty10.js
@@ -23,12 +23,27 @@ let k3 = <div> {1} {"That is a number"} </div>;
 let k4 = <Button> <h2> Hello </h2> </Button>;
 
 //// [file.jsx]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Button = (function () {
     function Button() {
     }
     Button.prototype.render = function () {
         return (<div>My Button</div>);
     };
+    __names(Button.prototype, ["render"]);
     return Button;
 }());
 // OK
diff --git a/tests/baselines/reference/checkJsxChildrenProperty11.js b/tests/baselines/reference/checkJsxChildrenProperty11.js
index f022b28f20c28..c0af8756007f0 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty11.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty11.js
@@ -23,12 +23,27 @@ let k3 = <div> {1} {"That is a number"} </div>;
 let k4 = <Button> <h2> Hello </h2> </Button>;
 
 //// [file.jsx]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Button = (function () {
     function Button() {
     }
     Button.prototype.render = function () {
         return (<div>My Button</div>);
     };
+    __names(Button.prototype, ["render"]);
     return Button;
 }());
 // OK
diff --git a/tests/baselines/reference/checkJsxChildrenProperty12.js b/tests/baselines/reference/checkJsxChildrenProperty12.js
index 0030d87483f2c..0669739358d01 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty12.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty12.js
@@ -44,6 +44,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Button = (function (_super) {
@@ -62,6 +76,7 @@ var Button = (function (_super) {
 				</InnerButton>);
         }
     };
+    __names(Button.prototype, ["render"]);
     return Button;
 }(React.Component));
 var InnerButton = (function (_super) {
@@ -72,5 +87,6 @@ var InnerButton = (function (_super) {
     InnerButton.prototype.render = function () {
         return (<button>Hello</button>);
     };
+    __names(InnerButton.prototype, ["render"]);
     return InnerButton;
 }(React.Component));
diff --git a/tests/baselines/reference/checkJsxChildrenProperty13.js b/tests/baselines/reference/checkJsxChildrenProperty13.js
index 8947e6b211f08..550873e41f2e4 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty13.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty13.js
@@ -39,6 +39,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Button = (function (_super) {
@@ -52,6 +66,7 @@ var Button = (function (_super) {
             <div>Hello World</div>
             </InnerButton>);
     };
+    __names(Button.prototype, ["render"]);
     return Button;
 }(React.Component));
 var InnerButton = (function (_super) {
@@ -62,5 +77,6 @@ var InnerButton = (function (_super) {
     InnerButton.prototype.render = function () {
         return (<button>Hello</button>);
     };
+    __names(InnerButton.prototype, ["render"]);
     return InnerButton;
 }(React.Component));
diff --git a/tests/baselines/reference/checkJsxChildrenProperty3.js b/tests/baselines/reference/checkJsxChildrenProperty3.js
index 49247925523d0..cf68946122b0f 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty3.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty3.js
@@ -51,6 +51,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var FetchUser = (function (_super) {
@@ -63,6 +77,7 @@ var FetchUser = (function (_super) {
             ? this.props.children(this.state.result)
             : null;
     };
+    __names(FetchUser.prototype, ["render"]);
     return FetchUser;
 }(React.Component));
 // Ok
diff --git a/tests/baselines/reference/checkJsxChildrenProperty4.js b/tests/baselines/reference/checkJsxChildrenProperty4.js
index d163ffb0f41b5..bc759363642ca 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty4.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty4.js
@@ -56,6 +56,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var FetchUser = (function (_super) {
@@ -68,6 +82,7 @@ var FetchUser = (function (_super) {
             ? this.props.children(this.state.result)
             : null;
     };
+    __names(FetchUser.prototype, ["render"]);
     return FetchUser;
 }(React.Component));
 // Error
diff --git a/tests/baselines/reference/checkJsxChildrenProperty5.js b/tests/baselines/reference/checkJsxChildrenProperty5.js
index a08dae2f25214..5a0b5a414b7ca 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty5.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty5.js
@@ -42,6 +42,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Button = (function (_super) {
@@ -52,6 +66,7 @@ var Button = (function (_super) {
     Button.prototype.render = function () {
         return (<div>My Button</div>);
     };
+    __names(Button.prototype, ["render"]);
     return Button;
 }(React.Component));
 function Comp(p) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty6.js b/tests/baselines/reference/checkJsxChildrenProperty6.js
index e433bc520dbe3..4a6a56a864558 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty6.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty6.js
@@ -55,6 +55,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Button = (function (_super) {
@@ -65,6 +79,7 @@ var Button = (function (_super) {
     Button.prototype.render = function () {
         return (<div>My Button</div>);
     };
+    __names(Button.prototype, ["render"]);
     return Button;
 }(React.Component));
 function AnotherButton(p) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty7.js b/tests/baselines/reference/checkJsxChildrenProperty7.js
index 6a82233f0bc09..3ac2ebe39c16a 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty7.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty7.js
@@ -40,6 +40,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Button = (function (_super) {
@@ -50,6 +64,7 @@ var Button = (function (_super) {
     Button.prototype.render = function () {
         return (<div>My Button</div>);
     };
+    __names(Button.prototype, ["render"]);
     return Button;
 }(React.Component));
 function AnotherButton(p) {
diff --git a/tests/baselines/reference/checkJsxChildrenProperty8.js b/tests/baselines/reference/checkJsxChildrenProperty8.js
index a2cd6a43fa500..111c407133523 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty8.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty8.js
@@ -41,6 +41,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Button = (function (_super) {
@@ -51,6 +65,7 @@ var Button = (function (_super) {
     Button.prototype.render = function () {
         return (<div>My Button</div>);
     };
+    __names(Button.prototype, ["render"]);
     return Button;
 }(React.Component));
 function AnotherButton(p) {
diff --git a/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.js b/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.js
index a5eb24c671680..8e45ac53fdd70 100644
--- a/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.js
+++ b/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.js
@@ -12,6 +12,20 @@ class A {
 }
 
 //// [checkSwitchStatementIfCaseTypeIsString.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -23,5 +37,6 @@ var A = (function () {
             }
         });
     };
+    __names(A.prototype, ["doIt"]);
     return A;
 }());
diff --git a/tests/baselines/reference/classAbstractAsIdentifier.js b/tests/baselines/reference/classAbstractAsIdentifier.js
index 44a2b0d331295..96a03e1de476a 100644
--- a/tests/baselines/reference/classAbstractAsIdentifier.js
+++ b/tests/baselines/reference/classAbstractAsIdentifier.js
@@ -6,10 +6,25 @@ class abstract {
 new abstract;
 
 //// [classAbstractAsIdentifier.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var abstract = (function () {
     function abstract() {
     }
     abstract.prototype.foo = function () { return 1; };
+    __names(abstract.prototype, ["foo"]);
     return abstract;
 }());
 new abstract;
diff --git a/tests/baselines/reference/classAbstractCrashedOnce.js b/tests/baselines/reference/classAbstractCrashedOnce.js
index 7801b61cdd922..acb93f58c82ff 100644
--- a/tests/baselines/reference/classAbstractCrashedOnce.js
+++ b/tests/baselines/reference/classAbstractCrashedOnce.js
@@ -21,6 +21,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var foo = (function () {
     function foo() {
     }
@@ -35,6 +49,7 @@ var bar = (function (_super) {
         this.
         ;
     };
+    __names(bar.prototype, ["test"]);
     return bar;
 }(foo));
 var x = new bar();
diff --git a/tests/baselines/reference/classAbstractExtends.js b/tests/baselines/reference/classAbstractExtends.js
index 0f63a08d2e9f0..8a4dcd5ec3802 100644
--- a/tests/baselines/reference/classAbstractExtends.js
+++ b/tests/baselines/reference/classAbstractExtends.js
@@ -16,6 +16,20 @@ class E extends B {
 }
 
 //// [classAbstractExtends.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -30,6 +44,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -59,5 +74,6 @@ var E = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     E.prototype.bar = function () { };
+    __names(E.prototype, ["bar"]);
     return E;
 }(B));
diff --git a/tests/baselines/reference/classAbstractGeneric.js b/tests/baselines/reference/classAbstractGeneric.js
index 6d20869ba73b9..d01b5b6350017 100644
--- a/tests/baselines/reference/classAbstractGeneric.js
+++ b/tests/baselines/reference/classAbstractGeneric.js
@@ -36,6 +36,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -68,6 +82,7 @@ var E = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     E.prototype.foo = function () { return this.t; };
+    __names(E.prototype, ["foo"]);
     return E;
 }(A));
 var F = (function (_super) {
@@ -76,6 +91,7 @@ var F = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     F.prototype.bar = function (t) { };
+    __names(F.prototype, ["bar"]);
     return F;
 }(A));
 var G = (function (_super) {
@@ -85,5 +101,6 @@ var G = (function (_super) {
     }
     G.prototype.foo = function () { return this.t; };
     G.prototype.bar = function (t) { };
+    __names(G.prototype, ["foo", "bar"]);
     return G;
 }(A));
diff --git a/tests/baselines/reference/classAbstractInstantiations2.js b/tests/baselines/reference/classAbstractInstantiations2.js
index 7d400c9fb05b2..286341200d950 100644
--- a/tests/baselines/reference/classAbstractInstantiations2.js
+++ b/tests/baselines/reference/classAbstractInstantiations2.js
@@ -52,6 +52,20 @@ class H { // error -- not declared abstract
 }
 
 //// [classAbstractInstantiations2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -71,6 +85,7 @@ var B = (function () {
     function B() {
     }
     B.prototype.foo = function () { return this.bar(); };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 new B; // error
@@ -104,6 +119,7 @@ var E = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     E.prototype.bar = function () { return 1; };
+    __names(E.prototype, ["bar"]);
     return E;
 }(B));
 var F = (function (_super) {
@@ -112,6 +128,7 @@ var F = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     F.prototype.bar = function () { return 2; };
+    __names(F.prototype, ["bar"]);
     return F;
 }(B));
 var G = (function () {
diff --git a/tests/baselines/reference/classAbstractMethodInNonAbstractClass.js b/tests/baselines/reference/classAbstractMethodInNonAbstractClass.js
index b4bf0595a3e48..696848b58a31a 100644
--- a/tests/baselines/reference/classAbstractMethodInNonAbstractClass.js
+++ b/tests/baselines/reference/classAbstractMethodInNonAbstractClass.js
@@ -8,6 +8,20 @@ class B {
 }
 
 //// [classAbstractMethodInNonAbstractClass.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -17,5 +31,6 @@ var B = (function () {
     function B() {
     }
     B.prototype.foo = function () { };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
diff --git a/tests/baselines/reference/classAbstractMethodWithImplementation.js b/tests/baselines/reference/classAbstractMethodWithImplementation.js
index aa373d1d2040f..25db3df4d6f68 100644
--- a/tests/baselines/reference/classAbstractMethodWithImplementation.js
+++ b/tests/baselines/reference/classAbstractMethodWithImplementation.js
@@ -4,9 +4,24 @@ abstract class A {
 }
 
 //// [classAbstractMethodWithImplementation.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
diff --git a/tests/baselines/reference/classAbstractOverloads.js b/tests/baselines/reference/classAbstractOverloads.js
index 11a694484f3e5..77619fce61cde 100644
--- a/tests/baselines/reference/classAbstractOverloads.js
+++ b/tests/baselines/reference/classAbstractOverloads.js
@@ -25,10 +25,25 @@ abstract class B {
 }
 
 //// [classAbstractOverloads.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.baz = function () { };
+    __names(A.prototype, ["baz"]);
     return A;
 }());
 var B = (function () {
diff --git a/tests/baselines/reference/classAbstractOverrideWithAbstract.js b/tests/baselines/reference/classAbstractOverrideWithAbstract.js
index 496dc7f241a6a..254b8686c02e4 100644
--- a/tests/baselines/reference/classAbstractOverrideWithAbstract.js
+++ b/tests/baselines/reference/classAbstractOverrideWithAbstract.js
@@ -24,6 +24,20 @@ class DD extends BB {
 }
 
 //// [classAbstractOverrideWithAbstract.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -38,6 +52,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -51,6 +66,7 @@ var AA = (function () {
     function AA() {
     }
     AA.prototype.foo = function () { };
+    __names(AA.prototype, ["foo"]);
     return AA;
 }());
 var BB = (function (_super) {
@@ -59,6 +75,7 @@ var BB = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     BB.prototype.bar = function () { };
+    __names(BB.prototype, ["bar"]);
     return BB;
 }(AA));
 var CC = (function (_super) {
@@ -74,5 +91,6 @@ var DD = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     DD.prototype.foo = function () { };
+    __names(DD.prototype, ["foo"]);
     return DD;
 }(BB));
diff --git a/tests/baselines/reference/classAbstractSuperCalls.js b/tests/baselines/reference/classAbstractSuperCalls.js
index 9bba784ca9360..fa99360fd1017 100644
--- a/tests/baselines/reference/classAbstractSuperCalls.js
+++ b/tests/baselines/reference/classAbstractSuperCalls.js
@@ -27,6 +27,20 @@ abstract class BB extends AA {
 
 
 //// [classAbstractSuperCalls.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -41,6 +55,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { return 1; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -50,6 +65,7 @@ var B = (function (_super) {
     }
     B.prototype.bar = function () { _super.prototype.foo.call(this); };
     B.prototype.baz = function () { return this.foo; };
+    __names(B.prototype, ["bar", "baz"]);
     return B;
 }(A));
 var C = (function (_super) {
@@ -60,6 +76,7 @@ var C = (function (_super) {
     C.prototype.foo = function () { return 2; };
     C.prototype.qux = function () { return _super.prototype.foo.call(this) || _super.prototype.foo; }; // 2 errors, foo is abstract
     C.prototype.norf = function () { return _super.prototype.bar.call(this); };
+    __names(C.prototype, ["foo", "qux", "norf"]);
     return C;
 }(B));
 var AA = (function () {
@@ -67,6 +84,7 @@ var AA = (function () {
     }
     AA.prototype.foo = function () { return 1; };
     AA.prototype.bar = function () { return this.foo(); };
+    __names(AA.prototype, ["foo", "bar"]);
     return AA;
 }());
 var BB = (function (_super) {
diff --git a/tests/baselines/reference/classAbstractUsingAbstractMethod1.js b/tests/baselines/reference/classAbstractUsingAbstractMethod1.js
index 8781fc6c05fc0..99715ee8e69f2 100644
--- a/tests/baselines/reference/classAbstractUsingAbstractMethod1.js
+++ b/tests/baselines/reference/classAbstractUsingAbstractMethod1.js
@@ -28,6 +28,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -39,6 +53,7 @@ var B = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     B.prototype.foo = function () { return 1; };
+    __names(B.prototype, ["foo"]);
     return B;
 }(A));
 var C = (function (_super) {
diff --git a/tests/baselines/reference/classAbstractUsingAbstractMethods2.js b/tests/baselines/reference/classAbstractUsingAbstractMethods2.js
index 6016ab249f1a0..364cae47a9186 100644
--- a/tests/baselines/reference/classAbstractUsingAbstractMethods2.js
+++ b/tests/baselines/reference/classAbstractUsingAbstractMethods2.js
@@ -38,6 +38,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -63,6 +77,7 @@ var D = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     D.prototype.foo = function () { };
+    __names(D.prototype, ["foo"]);
     return D;
 }(A));
 var E = (function (_super) {
@@ -71,6 +86,7 @@ var E = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     E.prototype.foo = function () { };
+    __names(E.prototype, ["foo"]);
     return E;
 }(A));
 var AA = (function () {
@@ -98,5 +114,6 @@ var DD = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     DD.prototype.foo = function () { };
+    __names(DD.prototype, ["foo"]);
     return DD;
 }(AA));
diff --git a/tests/baselines/reference/classBlockScoping.js b/tests/baselines/reference/classBlockScoping.js
index 3cae2d3cb7d1b..1151a24ab72db 100644
--- a/tests/baselines/reference/classBlockScoping.js
+++ b/tests/baselines/reference/classBlockScoping.js
@@ -34,6 +34,20 @@ function f(b: boolean) {
 }
 
 //// [classBlockScoping.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f(b) {
     var Foo;
     if (b) {
@@ -46,6 +60,7 @@ function f(b) {
                 Foo.prototype.m = function () {
                     new Foo();
                 };
+                __names(Foo.prototype, ["m"]);
                 return Foo;
             }()),
             _a.y = new _a(),
@@ -62,6 +77,7 @@ function f(b) {
             Foo.prototype.m = function () {
                 new Foo();
             };
+            __names(Foo.prototype, ["m"]);
             Foo.y = new Foo();
             return Foo;
         }());
diff --git a/tests/baselines/reference/classConstructorAccessibility2.js b/tests/baselines/reference/classConstructorAccessibility2.js
index 76c8ea1911031..63944ff2cd2f2 100644
--- a/tests/baselines/reference/classConstructorAccessibility2.js
+++ b/tests/baselines/reference/classConstructorAccessibility2.js
@@ -46,6 +46,20 @@ var dc = new DerivedC(1);
 
 
 //// [classConstructorAccessibility2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -61,6 +75,7 @@ var BaseA = (function () {
         this.x = x;
     }
     BaseA.prototype.createInstance = function () { new BaseA(1); };
+    __names(BaseA.prototype, ["createInstance"]);
     return BaseA;
 }());
 var BaseB = (function () {
@@ -68,6 +83,7 @@ var BaseB = (function () {
         this.x = x;
     }
     BaseB.prototype.createInstance = function () { new BaseB(2); };
+    __names(BaseB.prototype, ["createInstance"]);
     return BaseB;
 }());
 var BaseC = (function () {
@@ -76,6 +92,7 @@ var BaseC = (function () {
     }
     BaseC.prototype.createInstance = function () { new BaseC(3); };
     BaseC.staticInstance = function () { new BaseC(4); };
+    __names(BaseC.prototype, ["createInstance"]);
     return BaseC;
 }());
 var DerivedA = (function (_super) {
@@ -88,6 +105,7 @@ var DerivedA = (function (_super) {
     DerivedA.prototype.createInstance = function () { new DerivedA(5); };
     DerivedA.prototype.createBaseInstance = function () { new BaseA(6); };
     DerivedA.staticBaseInstance = function () { new BaseA(7); };
+    __names(DerivedA.prototype, ["createInstance", "createBaseInstance"]);
     return DerivedA;
 }(BaseA));
 var DerivedB = (function (_super) {
@@ -100,6 +118,7 @@ var DerivedB = (function (_super) {
     DerivedB.prototype.createInstance = function () { new DerivedB(7); };
     DerivedB.prototype.createBaseInstance = function () { new BaseB(8); }; // ok
     DerivedB.staticBaseInstance = function () { new BaseB(9); }; // ok
+    __names(DerivedB.prototype, ["createInstance", "createBaseInstance"]);
     return DerivedB;
 }(BaseB));
 var DerivedC = (function (_super) {
@@ -112,6 +131,7 @@ var DerivedC = (function (_super) {
     DerivedC.prototype.createInstance = function () { new DerivedC(9); };
     DerivedC.prototype.createBaseInstance = function () { new BaseC(10); }; // error
     DerivedC.staticBaseInstance = function () { new BaseC(11); }; // error
+    __names(DerivedC.prototype, ["createInstance", "createBaseInstance"]);
     return DerivedC;
 }(BaseC));
 var ba = new BaseA(1);
diff --git a/tests/baselines/reference/classConstructorAccessibility4.js b/tests/baselines/reference/classConstructorAccessibility4.js
index 032d4f8c13d7b..3efa4cbb2e871 100644
--- a/tests/baselines/reference/classConstructorAccessibility4.js
+++ b/tests/baselines/reference/classConstructorAccessibility4.js
@@ -30,6 +30,20 @@ class D {
 }
 
 //// [classConstructorAccessibility4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -50,6 +64,7 @@ var A = (function () {
             B.prototype.method = function () {
                 new A(); // OK
             };
+            __names(B.prototype, ["method"]);
             return B;
         }());
         var C = (function (_super) {
@@ -60,6 +75,7 @@ var A = (function () {
             return C;
         }(A));
     };
+    __names(A.prototype, ["method"]);
     return A;
 }());
 var D = (function () {
@@ -72,6 +88,7 @@ var D = (function () {
             E.prototype.method = function () {
                 new D(); // OK
             };
+            __names(E.prototype, ["method"]);
             return E;
         }());
         var F = (function (_super) {
@@ -82,6 +99,7 @@ var D = (function () {
             return F;
         }(D));
     };
+    __names(D.prototype, ["method"]);
     return D;
 }());
 
diff --git a/tests/baselines/reference/classExpression4.js b/tests/baselines/reference/classExpression4.js
index 7bdc8bd06ef64..072f5ba0c2d6f 100644
--- a/tests/baselines/reference/classExpression4.js
+++ b/tests/baselines/reference/classExpression4.js
@@ -8,12 +8,27 @@ let x = (new C).foo();
 
 
 //// [classExpression4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function class_1() {
     }
     class_1.prototype.foo = function () {
         return new C();
     };
+    __names(class_1.prototype, ["foo"]);
     return class_1;
 }());
 var x = (new C).foo();
diff --git a/tests/baselines/reference/classExpression5.js b/tests/baselines/reference/classExpression5.js
index fae615d3a553c..1685fdde3c11c 100644
--- a/tests/baselines/reference/classExpression5.js
+++ b/tests/baselines/reference/classExpression5.js
@@ -6,11 +6,26 @@ new class {
 }().hi();
 
 //// [classExpression5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 new (function () {
     function class_1() {
     }
     class_1.prototype.hi = function () {
         return "Hi!";
     };
+    __names(class_1.prototype, ["hi"]);
     return class_1;
 }())().hi();
diff --git a/tests/baselines/reference/classExpressionTest1.js b/tests/baselines/reference/classExpressionTest1.js
index 6b799c12f0413..c48c51b9401d4 100644
--- a/tests/baselines/reference/classExpressionTest1.js
+++ b/tests/baselines/reference/classExpressionTest1.js
@@ -13,6 +13,20 @@ function M() {
 }
 
 //// [classExpressionTest1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function M() {
     var C = (function () {
         function C() {
@@ -22,6 +36,7 @@ function M() {
             var x;
             return { t: t, x: x };
         };
+        __names(C.prototype, ["f"]);
         return C;
     }());
     var v = new C();
diff --git a/tests/baselines/reference/classExpressionTest2.js b/tests/baselines/reference/classExpressionTest2.js
index 761af899759dd..742187bdcd33f 100644
--- a/tests/baselines/reference/classExpressionTest2.js
+++ b/tests/baselines/reference/classExpressionTest2.js
@@ -13,6 +13,20 @@ function M() {
 }
 
 //// [classExpressionTest2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function M() {
     var m = (function () {
         function C() {
@@ -22,6 +36,7 @@ function M() {
             var x;
             return { t: t, x: x };
         };
+        __names(C.prototype, ["f"]);
         return C;
     }());
     var v = new m();
diff --git a/tests/baselines/reference/classExpressions.js b/tests/baselines/reference/classExpressions.js
index 3932fa5045b2c..ceab0fbda894f 100644
--- a/tests/baselines/reference/classExpressions.js
+++ b/tests/baselines/reference/classExpressions.js
@@ -9,6 +9,20 @@ let x = class B implements A {
 };
 
 //// [classExpressions.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var x = (function () {
     function B() {
         this.func = function () {
@@ -16,5 +30,6 @@ var x = (function () {
     }
     B.prototype.onStart = function () {
     };
+    __names(B.prototype, ["onStart"]);
     return B;
 }());
diff --git a/tests/baselines/reference/classExtendingClass.js b/tests/baselines/reference/classExtendingClass.js
index 52b415ccb779d..6daaab5017685 100644
--- a/tests/baselines/reference/classExtendingClass.js
+++ b/tests/baselines/reference/classExtendingClass.js
@@ -32,6 +32,20 @@ var r7 = d2.thing('');
 var r8 = D2.other(1);
 
 //// [classExtendingClass.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -47,6 +61,7 @@ var C = (function () {
     }
     C.prototype.thing = function () { };
     C.other = function () { };
+    __names(C.prototype, ["thing"]);
     return C;
 }());
 var D = (function (_super) {
@@ -66,6 +81,7 @@ var C2 = (function () {
     }
     C2.prototype.thing = function (x) { };
     C2.other = function (x) { };
+    __names(C2.prototype, ["thing"]);
     return C2;
 }());
 var D2 = (function (_super) {
diff --git a/tests/baselines/reference/classExtendsInterfaceThatExtendsClassWithPrivates1.js b/tests/baselines/reference/classExtendsInterfaceThatExtendsClassWithPrivates1.js
index aab40d145c4d9..7e2a70655ab61 100644
--- a/tests/baselines/reference/classExtendsInterfaceThatExtendsClassWithPrivates1.js
+++ b/tests/baselines/reference/classExtendsInterfaceThatExtendsClassWithPrivates1.js
@@ -15,11 +15,26 @@ class D2 implements I {
 } 
 
 //// [classExtendsInterfaceThatExtendsClassWithPrivates1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
         this.x = 1;
     }
     C.prototype.foo = function (x) { return x; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D2 = (function () {
@@ -28,5 +43,6 @@ var D2 = (function () {
     }
     D2.prototype.foo = function (x) { return x; };
     D2.prototype.other = function (x) { return x; };
+    __names(D2.prototype, ["foo", "other"]);
     return D2;
 }());
diff --git a/tests/baselines/reference/classImplementsClass2.js b/tests/baselines/reference/classImplementsClass2.js
index 330a9a7dece3c..0d9da36165f06 100644
--- a/tests/baselines/reference/classImplementsClass2.js
+++ b/tests/baselines/reference/classImplementsClass2.js
@@ -14,6 +14,20 @@ c = c2;
 c2 = c;
 
 //// [classImplementsClass2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -28,6 +42,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { return 1; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var C = (function () {
@@ -43,6 +58,7 @@ var C2 = (function (_super) {
     C2.prototype.foo = function () {
         return 1;
     };
+    __names(C2.prototype, ["foo"]);
     return C2;
 }(A));
 var c;
diff --git a/tests/baselines/reference/classImplementsClass3.js b/tests/baselines/reference/classImplementsClass3.js
index 649afb528a39e..c788aeaf566e1 100644
--- a/tests/baselines/reference/classImplementsClass3.js
+++ b/tests/baselines/reference/classImplementsClass3.js
@@ -15,6 +15,20 @@ c = c2;
 c2 = c;
 
 //// [classImplementsClass3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -29,6 +43,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { return 1; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var C = (function () {
@@ -37,6 +52,7 @@ var C = (function () {
     C.prototype.foo = function () {
         return 1;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var C2 = (function (_super) {
diff --git a/tests/baselines/reference/classImplementsClass4.js b/tests/baselines/reference/classImplementsClass4.js
index 0d7a8661ed16a..6b00105152293 100644
--- a/tests/baselines/reference/classImplementsClass4.js
+++ b/tests/baselines/reference/classImplementsClass4.js
@@ -17,6 +17,20 @@ c = c2;
 c2 = c;
 
 //// [classImplementsClass4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -32,6 +46,7 @@ var A = (function () {
         this.x = 1;
     }
     A.prototype.foo = function () { return 1; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var C = (function () {
@@ -40,6 +55,7 @@ var C = (function () {
     C.prototype.foo = function () {
         return 1;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var C2 = (function (_super) {
diff --git a/tests/baselines/reference/classImplementsClass5.js b/tests/baselines/reference/classImplementsClass5.js
index 4b5229bdfc6f8..3807c7a8654b0 100644
--- a/tests/baselines/reference/classImplementsClass5.js
+++ b/tests/baselines/reference/classImplementsClass5.js
@@ -18,6 +18,20 @@ c = c2;
 c2 = c;
 
 //// [classImplementsClass5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -33,6 +47,7 @@ var A = (function () {
         this.x = 1;
     }
     A.prototype.foo = function () { return 1; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var C = (function () {
@@ -42,6 +57,7 @@ var C = (function () {
     C.prototype.foo = function () {
         return 1;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var C2 = (function (_super) {
diff --git a/tests/baselines/reference/classImplementsClass6.js b/tests/baselines/reference/classImplementsClass6.js
index fb42e9451a70a..720329f26f7fa 100644
--- a/tests/baselines/reference/classImplementsClass6.js
+++ b/tests/baselines/reference/classImplementsClass6.js
@@ -22,6 +22,20 @@ c.bar(); // error
 c2.bar(); // should error
 
 //// [classImplementsClass6.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -39,6 +53,7 @@ var A = (function () {
         return "";
     };
     A.prototype.foo = function () { return 1; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var C = (function () {
@@ -47,6 +62,7 @@ var C = (function () {
     C.prototype.foo = function () {
         return 1;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var C2 = (function (_super) {
diff --git a/tests/baselines/reference/classImplementsImportedInterface.js b/tests/baselines/reference/classImplementsImportedInterface.js
index d9d7d9eed2e05..1fd42ebc163df 100644
--- a/tests/baselines/reference/classImplementsImportedInterface.js
+++ b/tests/baselines/reference/classImplementsImportedInterface.js
@@ -13,12 +13,27 @@ module M2 {
 }
 
 //// [classImplementsImportedInterface.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M2;
 (function (M2) {
     var C = (function () {
         function C() {
         }
         C.prototype.foo = function () { };
+        __names(C.prototype, ["foo"]);
         return C;
     }());
 })(M2 || (M2 = {}));
diff --git a/tests/baselines/reference/classOrder1.js b/tests/baselines/reference/classOrder1.js
index 0d6d47891ea60..9b8807a421c38 100644
--- a/tests/baselines/reference/classOrder1.js
+++ b/tests/baselines/reference/classOrder1.js
@@ -12,12 +12,27 @@ a.foo();
 
 
 //// [classOrder1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () {
         /*WScript.Echo("Here!");*/
     };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var a = new A();
diff --git a/tests/baselines/reference/classOrder2.js b/tests/baselines/reference/classOrder2.js
index 13ddfd8ae8251..be1b21cca5f6b 100644
--- a/tests/baselines/reference/classOrder2.js
+++ b/tests/baselines/reference/classOrder2.js
@@ -29,18 +29,34 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function (_super) {
     __extends(A, _super);
     function A() {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     A.prototype.foo = function () { this.bar(); };
+    __names(A.prototype, ["foo"]);
     return A;
 }(B));
 var B = (function () {
     function B() {
     }
     B.prototype.bar = function () { };
+    __names(B.prototype, ["bar"]);
     return B;
 }());
 var a = new A();
diff --git a/tests/baselines/reference/classPropertyAsPrivate.js b/tests/baselines/reference/classPropertyAsPrivate.js
index 3db4b7acce430..0420dfc2e65e6 100644
--- a/tests/baselines/reference/classPropertyAsPrivate.js
+++ b/tests/baselines/reference/classPropertyAsPrivate.js
@@ -24,6 +24,20 @@ C.b = 1;
 C.foo();
 
 //// [classPropertyAsPrivate.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -41,6 +55,7 @@ var C = (function () {
         configurable: true
     });
     C.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/classPropertyAsProtected.js b/tests/baselines/reference/classPropertyAsProtected.js
index da0e166513529..f5d0549d55a69 100644
--- a/tests/baselines/reference/classPropertyAsProtected.js
+++ b/tests/baselines/reference/classPropertyAsProtected.js
@@ -24,6 +24,20 @@ C.b = 1;
 C.foo();
 
 //// [classPropertyAsProtected.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -41,6 +55,7 @@ var C = (function () {
         configurable: true
     });
     C.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/classPropertyIsPublicByDefault.js b/tests/baselines/reference/classPropertyIsPublicByDefault.js
index 5a5bfa7afe888..0e4b5bdc6d214 100644
--- a/tests/baselines/reference/classPropertyIsPublicByDefault.js
+++ b/tests/baselines/reference/classPropertyIsPublicByDefault.js
@@ -23,6 +23,20 @@ C.b = 1;
 C.foo();
 
 //// [classPropertyIsPublicByDefault.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -40,6 +54,7 @@ var C = (function () {
         configurable: true
     });
     C.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/classSideInheritance1.js b/tests/baselines/reference/classSideInheritance1.js
index 549d945119927..783ea6a9c7fef 100644
--- a/tests/baselines/reference/classSideInheritance1.js
+++ b/tests/baselines/reference/classSideInheritance1.js
@@ -16,6 +16,20 @@ A.bar(); // valid
 C2.bar(); // valid
 
 //// [classSideInheritance1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -33,6 +47,7 @@ var A = (function () {
         return "";
     };
     A.prototype.foo = function () { return 1; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var C2 = (function (_super) {
diff --git a/tests/baselines/reference/classSideInheritance2.js b/tests/baselines/reference/classSideInheritance2.js
index 9887472615f4d..49304de2dac76 100644
--- a/tests/baselines/reference/classSideInheritance2.js
+++ b/tests/baselines/reference/classSideInheritance2.js
@@ -31,6 +31,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var SubText = (function (_super) {
     __extends(SubText, _super);
     function SubText(text, span) {
@@ -44,5 +58,6 @@ var TextBase = (function () {
     TextBase.prototype.subText = function (span) {
         return new SubText(this, span);
     };
+    __names(TextBase.prototype, ["subText"]);
     return TextBase;
 }());
diff --git a/tests/baselines/reference/classWithDuplicateIdentifier.js b/tests/baselines/reference/classWithDuplicateIdentifier.js
index 515b1749aa3d5..28d5d9ab917a9 100644
--- a/tests/baselines/reference/classWithDuplicateIdentifier.js
+++ b/tests/baselines/reference/classWithDuplicateIdentifier.js
@@ -14,16 +14,32 @@ class D {
 
 
 //// [classWithDuplicateIdentifier.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.a = function () { return 0; }; // error: duplicate identifier
+    __names(C.prototype, ["a"]);
     return C;
 }());
 var K = (function () {
     function K() {
     }
     K.prototype.b = function () { return 0; };
+    __names(K.prototype, ["b"]);
     return K;
 }());
 var D = (function () {
diff --git a/tests/baselines/reference/classWithMultipleBaseClasses.js b/tests/baselines/reference/classWithMultipleBaseClasses.js
index 4f1170f000e75..67e782141b8e6 100644
--- a/tests/baselines/reference/classWithMultipleBaseClasses.js
+++ b/tests/baselines/reference/classWithMultipleBaseClasses.js
@@ -25,16 +25,32 @@ interface I extends A, B {
 }
 
 //// [classWithMultipleBaseClasses.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.bar = function () { };
+    __names(B.prototype, ["bar"]);
     return B;
 }());
 var D = (function () {
@@ -42,5 +58,6 @@ var D = (function () {
     }
     D.prototype.baz = function () { };
     D.prototype.bat = function () { };
+    __names(D.prototype, ["baz", "bat"]);
     return D;
 }());
diff --git a/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface.js b/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface.js
index c2942b8571f39..a70ed7e2fb744 100644
--- a/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface.js
+++ b/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface.js
@@ -27,6 +27,20 @@ i = c;
 
 //// [classWithOnlyPublicMembersEquivalentToInterface.js]
 // no errors expected
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -37,6 +51,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, ["y"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface2.js b/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface2.js
index b97269527bee3..3b7f48fbf66f5 100644
--- a/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface2.js
+++ b/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface2.js
@@ -29,6 +29,20 @@ i = c;
 
 //// [classWithOnlyPublicMembersEquivalentToInterface2.js]
 // no errors expected
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -39,6 +53,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, ["y"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/classWithOptionalParameter.js b/tests/baselines/reference/classWithOptionalParameter.js
index 53f6bcedd9966..1247164480138 100644
--- a/tests/baselines/reference/classWithOptionalParameter.js
+++ b/tests/baselines/reference/classWithOptionalParameter.js
@@ -13,15 +13,31 @@ class C2<T> {
 
 //// [classWithOptionalParameter.js]
 // classes do not permit optional parameters, these are errors
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.f = function () { };
+    __names(C.prototype, ["f"]);
     return C;
 }());
 var C2 = (function () {
     function C2() {
     }
     C2.prototype.f = function (x) { };
+    __names(C2.prototype, ["f"]);
     return C2;
 }());
diff --git a/tests/baselines/reference/classWithOverloadImplementationOfWrongName.js b/tests/baselines/reference/classWithOverloadImplementationOfWrongName.js
index 1bc9f197450db..95d3ed4e17872 100644
--- a/tests/baselines/reference/classWithOverloadImplementationOfWrongName.js
+++ b/tests/baselines/reference/classWithOverloadImplementationOfWrongName.js
@@ -6,9 +6,24 @@ class C {
 }
 
 //// [classWithOverloadImplementationOfWrongName.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.bar = function (x) { };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/classWithOverloadImplementationOfWrongName2.js b/tests/baselines/reference/classWithOverloadImplementationOfWrongName2.js
index 8e3d9eee62cc7..45cd55a779a30 100644
--- a/tests/baselines/reference/classWithOverloadImplementationOfWrongName2.js
+++ b/tests/baselines/reference/classWithOverloadImplementationOfWrongName2.js
@@ -6,9 +6,24 @@ class C {
 }
 
 //// [classWithOverloadImplementationOfWrongName2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.bar = function (x) { };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/classWithPrivateProperty.js b/tests/baselines/reference/classWithPrivateProperty.js
index 6e75797523fb3..eb0b0f30c2570 100644
--- a/tests/baselines/reference/classWithPrivateProperty.js
+++ b/tests/baselines/reference/classWithPrivateProperty.js
@@ -24,6 +24,20 @@ var r8: string = C.g();
 
 //// [classWithPrivateProperty.js]
 // accessing any private outside the class is an error
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
         this.a = '';
@@ -32,6 +46,7 @@ var C = (function () {
     }
     C.prototype.c = function () { return ''; };
     C.f = function () { return ''; };
+    __names(C.prototype, ["c"]);
     C.g = function () { return ''; };
     return C;
 }());
diff --git a/tests/baselines/reference/classWithProtectedProperty.js b/tests/baselines/reference/classWithProtectedProperty.js
index 2bc766cd99a7e..98c92cd3d6142 100644
--- a/tests/baselines/reference/classWithProtectedProperty.js
+++ b/tests/baselines/reference/classWithProtectedProperty.js
@@ -29,6 +29,20 @@ class D extends C {
 
 //// [classWithProtectedProperty.js]
 // accessing any protected outside the class is an error
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -47,6 +61,7 @@ var C = (function () {
     }
     C.prototype.c = function () { return ''; };
     C.f = function () { return ''; };
+    __names(C.prototype, ["c"]);
     C.g = function () { return ''; };
     return C;
 }());
@@ -67,5 +82,6 @@ var D = (function (_super) {
         var r7 = C.f();
         var r8 = C.g();
     };
+    __names(D.prototype, ["method"]);
     return D;
 }(C));
diff --git a/tests/baselines/reference/classWithPublicProperty.js b/tests/baselines/reference/classWithPublicProperty.js
index 054713264bd01..4590324930e57 100644
--- a/tests/baselines/reference/classWithPublicProperty.js
+++ b/tests/baselines/reference/classWithPublicProperty.js
@@ -22,6 +22,20 @@ var r7: string = C.f();
 var r8: string = C.g();
 
 //// [classWithPublicProperty.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
         this.a = '';
@@ -30,6 +44,7 @@ var C = (function () {
     }
     C.prototype.c = function () { return ''; };
     C.f = function () { return ''; };
+    __names(C.prototype, ["c"]);
     C.g = function () { return ''; };
     return C;
 }());
diff --git a/tests/baselines/reference/classdecl.js b/tests/baselines/reference/classdecl.js
index e1e1313dae29c..632553c70c831 100644
--- a/tests/baselines/reference/classdecl.js
+++ b/tests/baselines/reference/classdecl.js
@@ -94,6 +94,20 @@ class e {
 }
 
 //// [classdecl.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -136,6 +150,7 @@ var a = (function () {
     a.prototype.foo = function (ns) {
         return ns.toString();
     };
+    __names(a.prototype, ["pgF", "foo"]);
     return a;
 }());
 var b = (function (_super) {
@@ -197,6 +212,7 @@ var d = (function () {
     d.prototype.foo = function (ns) {
         return ns.toString();
     };
+    __names(d.prototype, ["foo"]);
     return d;
 }());
 var e = (function () {
@@ -205,6 +221,7 @@ var e = (function () {
     e.prototype.foo = function (ns) {
         return ns.toString();
     };
+    __names(e.prototype, ["foo"]);
     return e;
 }());
 
diff --git a/tests/baselines/reference/cloduleAcrossModuleDefinitions.js b/tests/baselines/reference/cloduleAcrossModuleDefinitions.js
index ac3ff22852f3f..0398b28611776 100644
--- a/tests/baselines/reference/cloduleAcrossModuleDefinitions.js
+++ b/tests/baselines/reference/cloduleAcrossModuleDefinitions.js
@@ -16,6 +16,20 @@ var b: A.B; // ok
 
 
 //// [cloduleAcrossModuleDefinitions.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A;
 (function (A) {
     var B = (function () {
@@ -23,6 +37,7 @@ var A;
         }
         B.prototype.foo = function () { };
         B.bar = function () { };
+        __names(B.prototype, ["foo"]);
         return B;
     }());
     A.B = B;
diff --git a/tests/baselines/reference/collisionArgumentsClassMethod.js b/tests/baselines/reference/collisionArgumentsClassMethod.js
index 85610926e350c..56bbd852ca4e2 100644
--- a/tests/baselines/reference/collisionArgumentsClassMethod.js
+++ b/tests/baselines/reference/collisionArgumentsClassMethod.js
@@ -49,6 +49,20 @@ class c3 {
 }
 
 //// [collisionArgumentsClassMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var c1 = (function () {
     function c1() {
     }
@@ -86,6 +100,7 @@ var c1 = (function () {
     c1.prototype.f4NoError = function (arguments) {
         var arguments; // no error
     };
+    __names(c1.prototype, ["foo", "foo1", "fooNoError", "f4", "f41", "f4NoError"]);
     return c1;
 }());
 var c3 = (function () {
@@ -101,5 +116,6 @@ var c3 = (function () {
     c3.prototype.fooNoError = function () {
         var arguments = 10; // no error
     };
+    __names(c3.prototype, ["foo", "fooNoError"]);
     return c3;
 }());
diff --git a/tests/baselines/reference/collisionCodeGenModuleWithMethodChildren.js b/tests/baselines/reference/collisionCodeGenModuleWithMethodChildren.js
index 4ff4cb22668ba..f844db00c0df0 100644
--- a/tests/baselines/reference/collisionCodeGenModuleWithMethodChildren.js
+++ b/tests/baselines/reference/collisionCodeGenModuleWithMethodChildren.js
@@ -33,6 +33,20 @@ module M { // Shouldnt bn _M
 }
 
 //// [collisionCodeGenModuleWithMethodChildren.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M_1) {
     M_1.x = 3;
@@ -42,6 +56,7 @@ var M;
         c.prototype.fn = function (M, p) {
             if (p === void 0) { p = M_1.x; }
         };
+        __names(c.prototype, ["fn"]);
         return c;
     }());
 })(M || (M = {}));
@@ -53,6 +68,7 @@ var M;
             var M;
             var p = M_2.x;
         };
+        __names(d.prototype, ["fn2"]);
         return d;
     }());
 })(M || (M = {}));
@@ -65,6 +81,7 @@ var M;
                 var p = M_3.x;
             }
         };
+        __names(e.prototype, ["fn3"]);
         return e;
     }());
 })(M || (M = {}));
@@ -74,6 +91,7 @@ var M;
         }
         f.prototype.M = function () {
         };
+        __names(f.prototype, ["M"]);
         return f;
     }());
 })(M || (M = {}));
diff --git a/tests/baselines/reference/collisionRestParameterClassMethod.js b/tests/baselines/reference/collisionRestParameterClassMethod.js
index cda717c79ab03..3aab32fe5a3c7 100644
--- a/tests/baselines/reference/collisionRestParameterClassMethod.js
+++ b/tests/baselines/reference/collisionRestParameterClassMethod.js
@@ -39,6 +39,20 @@ class c3 {
 }
 
 //// [collisionRestParameterClassMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var c1 = (function () {
     function c1() {
     }
@@ -62,6 +76,7 @@ var c1 = (function () {
     c1.prototype.f4NoError = function (_i) {
         var _i; // no error
     };
+    __names(c1.prototype, ["foo", "fooNoError", "f4", "f4NoError"]);
     return c1;
 }());
 var c3 = (function () {
@@ -77,5 +92,6 @@ var c3 = (function () {
     c3.prototype.fooNoError = function () {
         var _i = 10; // no error
     };
+    __names(c3.prototype, ["foo", "fooNoError"]);
     return c3;
 }());
diff --git a/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js b/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js
index b211b3e4eacc7..7a2c8cc6c578f 100644
--- a/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js
+++ b/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js
@@ -29,6 +29,20 @@ class c extends Foo {
 }
 
 //// [collisionSuperAndLocalFunctionInMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -50,6 +64,7 @@ var Foo = (function () {
     };
     Foo.prototype._super = function () {
     };
+    __names(Foo.prototype, ["x", "_super"]);
     return Foo;
 }());
 var b = (function (_super) {
@@ -63,6 +78,7 @@ var b = (function (_super) {
     };
     b.prototype._super = function () {
     };
+    __names(b.prototype, ["foo", "_super"]);
     return b;
 }(Foo));
 var c = (function (_super) {
@@ -78,5 +94,6 @@ var c = (function (_super) {
     };
     c.prototype._super = function () {
     };
+    __names(c.prototype, ["foo", "_super"]);
     return c;
 }(Foo));
diff --git a/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js b/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js
index c6cce551d9326..c567ac3d5b901 100644
--- a/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js
+++ b/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js
@@ -19,6 +19,20 @@ class c extends Foo {
 }
 
 //// [collisionSuperAndLocalVarInMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -36,6 +50,7 @@ var Foo = (function () {
     Foo.prototype.x = function () {
         var _super = 10; // No error
     };
+    __names(Foo.prototype, ["x"]);
     return Foo;
 }());
 var b = (function (_super) {
@@ -46,6 +61,7 @@ var b = (function (_super) {
     b.prototype.foo = function () {
         var _super = 10; // Should be error 
     };
+    __names(b.prototype, ["foo"]);
     return b;
 }(Foo));
 var c = (function (_super) {
@@ -58,5 +74,6 @@ var c = (function (_super) {
             var _super = 10; // Should be error
         };
     };
+    __names(c.prototype, ["foo"]);
     return c;
 }(Foo));
diff --git a/tests/baselines/reference/collisionSuperAndNameResolution.js b/tests/baselines/reference/collisionSuperAndNameResolution.js
index c35c30ec84e7e..39fe45fe6ddcc 100644
--- a/tests/baselines/reference/collisionSuperAndNameResolution.js
+++ b/tests/baselines/reference/collisionSuperAndNameResolution.js
@@ -22,6 +22,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var console;
 var _super = 10; // No error
 var base = (function () {
@@ -37,5 +51,6 @@ var Foo = (function (_super) {
     Foo.prototype.x = function () {
         console.log(_super); // Error as this doesnt not resolve to user defined _super
     };
+    __names(Foo.prototype, ["x"]);
     return Foo;
 }(base));
diff --git a/tests/baselines/reference/collisionSuperAndParameter.js b/tests/baselines/reference/collisionSuperAndParameter.js
index e2771fadf1fa6..4340022352c18 100644
--- a/tests/baselines/reference/collisionSuperAndParameter.js
+++ b/tests/baselines/reference/collisionSuperAndParameter.js
@@ -63,6 +63,20 @@ class Foo4 extends Foo {
 }
 
 //// [collisionSuperAndParameter.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -94,6 +108,7 @@ var Foo = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Foo.prototype, ["a", "b"]);
     return Foo;
 }());
 var Foo2 = (function (_super) {
@@ -124,6 +139,7 @@ var Foo2 = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(Foo2.prototype, ["x", "y"]);
     return Foo2;
 }(Foo));
 var Foo4 = (function (_super) {
@@ -137,5 +153,6 @@ var Foo4 = (function (_super) {
             return function (x) { return _this; }; // New scope.  So should inject new _this capture
         };
     };
+    __names(Foo4.prototype, ["y"]);
     return Foo4;
 }(Foo));
diff --git a/tests/baselines/reference/collisionSuperAndParameter1.js b/tests/baselines/reference/collisionSuperAndParameter1.js
index 8bc3fc19b5bb0..c36e2f1ddb585 100644
--- a/tests/baselines/reference/collisionSuperAndParameter1.js
+++ b/tests/baselines/reference/collisionSuperAndParameter1.js
@@ -20,6 +20,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -34,5 +48,6 @@ var Foo2 = (function (_super) {
         var lambda = function (_super) {
         };
     };
+    __names(Foo2.prototype, ["x"]);
     return Foo2;
 }(Foo));
diff --git a/tests/baselines/reference/collisionThisExpressionAndLocalVarInMethod.js b/tests/baselines/reference/collisionThisExpressionAndLocalVarInMethod.js
index 7c71fd79ade1a..560bb4293e516 100644
--- a/tests/baselines/reference/collisionThisExpressionAndLocalVarInMethod.js
+++ b/tests/baselines/reference/collisionThisExpressionAndLocalVarInMethod.js
@@ -19,6 +19,20 @@ class a {
 }
 
 //// [collisionThisExpressionAndLocalVarInMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var a = (function () {
     function a() {
     }
@@ -40,5 +54,6 @@ var a = (function () {
             }; }
         };
     };
+    __names(a.prototype, ["method1", "method2"]);
     return a;
 }());
diff --git a/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js b/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js
index d0d5059adec07..90eff4333f1e8 100644
--- a/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js
+++ b/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js
@@ -19,6 +19,20 @@ class b2 extends a {
 }
 
 //// [collisionThisExpressionAndLocalVarWithSuperExperssion.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -34,6 +48,7 @@ var a = (function () {
     }
     a.prototype.foo = function () {
     };
+    __names(a.prototype, ["foo"]);
     return a;
 }());
 var b = (function (_super) {
@@ -46,6 +61,7 @@ var b = (function (_super) {
         var _this = 10;
         var f = function () { return _super.prototype.foo.call(_this); };
     };
+    __names(b.prototype, ["foo"]);
     return b;
 }(a));
 var b2 = (function (_super) {
@@ -60,5 +76,6 @@ var b2 = (function (_super) {
             return _super.prototype.foo.call(_this);
         };
     };
+    __names(b2.prototype, ["foo"]);
     return b2;
 }(a));
diff --git a/tests/baselines/reference/collisionThisExpressionAndNameResolution.js b/tests/baselines/reference/collisionThisExpressionAndNameResolution.js
index 130f99bcd9079..1ba2a0c4bb425 100644
--- a/tests/baselines/reference/collisionThisExpressionAndNameResolution.js
+++ b/tests/baselines/reference/collisionThisExpressionAndNameResolution.js
@@ -13,6 +13,20 @@ class Foo {
 }
 
 //// [collisionThisExpressionAndNameResolution.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var console;
 var Foo = (function () {
     function Foo() {
@@ -25,5 +39,6 @@ var Foo = (function () {
             return function (x) { return _this; }; // New scope.  So should inject new _this capture into function inner
         }
     };
+    __names(Foo.prototype, ["x"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/collisionThisExpressionAndParameter.js b/tests/baselines/reference/collisionThisExpressionAndParameter.js
index bc15e4b56b50a..a5047243da710 100644
--- a/tests/baselines/reference/collisionThisExpressionAndParameter.js
+++ b/tests/baselines/reference/collisionThisExpressionAndParameter.js
@@ -94,6 +94,20 @@ declare function f4(_this: number); // no code gen - no error
 declare function f4(_this: string); // no code gen - no error
 
 //// [collisionThisExpressionAndParameter.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -129,6 +143,7 @@ var Foo = (function () {
         var lambda = function () {
         };
     };
+    __names(Foo.prototype, ["x", "y", "z", "x1", "y1", "z1"]);
     return Foo;
 }());
 var Foo1 = (function () {
@@ -161,6 +176,7 @@ var Foo3 = (function () {
             return function (x) { return _this; }; // New scope.  So should inject new _this capture
         };
     };
+    __names(Foo3.prototype, ["z"]);
     return Foo3;
 }());
 function f3(_this) {
diff --git a/tests/baselines/reference/commentOnClassMethod1.js b/tests/baselines/reference/commentOnClassMethod1.js
index 4b909da55a44c..ff958b769826b 100644
--- a/tests/baselines/reference/commentOnClassMethod1.js
+++ b/tests/baselines/reference/commentOnClassMethod1.js
@@ -8,6 +8,20 @@ class WebControls {
 }
 
 //// [commentOnClassMethod1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var WebControls = (function () {
     function WebControls() {
     }
@@ -16,5 +30,6 @@ var WebControls = (function () {
      */
     WebControls.prototype.createControl = function () {
     };
+    __names(WebControls.prototype, ["createControl"]);
     return WebControls;
 }());
diff --git a/tests/baselines/reference/commentOnSignature1.js b/tests/baselines/reference/commentOnSignature1.js
index 38437d6fd1312..e281f8f660383 100644
--- a/tests/baselines/reference/commentOnSignature1.js
+++ b/tests/baselines/reference/commentOnSignature1.js
@@ -42,6 +42,20 @@ function foo2(a: any): void {
     Keep this pinned
    =================
 */
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(a) {
 }
 var c = (function () {
@@ -49,6 +63,7 @@ var c = (function () {
     }
     c.prototype.foo = function (a) {
     };
+    __names(c.prototype, ["foo"]);
     return c;
 }());
 //// [b.js]
diff --git a/tests/baselines/reference/commentsClassMembers.js b/tests/baselines/reference/commentsClassMembers.js
index 9953e77ab7ec9..43f5758b96cc2 100644
--- a/tests/baselines/reference/commentsClassMembers.js
+++ b/tests/baselines/reference/commentsClassMembers.js
@@ -218,6 +218,20 @@ cProperties_i.nc_p2 = cProperties_i.nc_p1;
 
 
 //// [commentsClassMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 /** This is comment for c1*/
 var c1 = (function () {
     /** Constructor method*/
@@ -411,6 +425,7 @@ var c1 = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(c1.prototype, ["p2", "pp2", "nc_p2", "nc_pp2", "a_p2", "a_pp2", "b_p2", "b_pp2"]);
     return c1;
 }());
 var i1 = new c1();
diff --git a/tests/baselines/reference/commentsInheritance.js b/tests/baselines/reference/commentsInheritance.js
index e33a4244c037d..b088a6b08fdc4 100644
--- a/tests/baselines/reference/commentsInheritance.js
+++ b/tests/baselines/reference/commentsInheritance.js
@@ -151,6 +151,20 @@ i2_i = i3_i;
 
 
 //// [commentsInheritance.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -175,6 +189,7 @@ var c1 = (function () {
     /** c1_nc_f1*/
     c1.prototype.nc_f1 = function () {
     };
+    __names(c1.prototype, ["i1_f1", "i1_nc_f1", "f1", "nc_f1"]);
     return c1;
 }());
 var i1_i;
@@ -226,6 +241,7 @@ var c2 = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(c2.prototype, ["c2_f1", "c2_nc_f1", "f1", "nc_f1"]);
     return c2;
 }());
 var c3 = (function (_super) {
@@ -253,6 +269,7 @@ var c3 = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(c3.prototype, ["f1", "nc_f1"]);
     return c3;
 }(c2));
 var c2_i = new c2(10);
diff --git a/tests/baselines/reference/commentsOverloads.js b/tests/baselines/reference/commentsOverloads.js
index e711a9585ce28..c4a72f0cbfd97 100644
--- a/tests/baselines/reference/commentsOverloads.js
+++ b/tests/baselines/reference/commentsOverloads.js
@@ -175,6 +175,20 @@ var c5_i_2 = new c5("hello");
 
 
 //// [commentsOverloads.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f1(aOrb) {
     return 10;
 }
@@ -218,6 +232,7 @@ var c = (function () {
     c.prototype.prop5 = function (aorb) {
         return 10;
     };
+    __names(c.prototype, ["prop1", "prop2", "prop3", "prop4", "prop5"]);
     return c;
 }());
 var c1 = (function () {
diff --git a/tests/baselines/reference/commentsTypeParameters.js b/tests/baselines/reference/commentsTypeParameters.js
index 003cafe70adfb..c77583e3787bc 100644
--- a/tests/baselines/reference/commentsTypeParameters.js
+++ b/tests/baselines/reference/commentsTypeParameters.js
@@ -16,6 +16,20 @@ function compare</**type*/T>(a: T, b: T) {
 }
 
 //// [commentsTypeParameters.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -27,6 +41,7 @@ var C = (function () {
     };
     C.privatestaticmethod = function (a) {
     };
+    __names(C.prototype, ["method", "privatemethod"]);
     return C;
 }());
 function compare(a, b) {
diff --git a/tests/baselines/reference/commentsdoNotEmitComments.js b/tests/baselines/reference/commentsdoNotEmitComments.js
index d4d57a7c35f84..ead5b5bc925f8 100644
--- a/tests/baselines/reference/commentsdoNotEmitComments.js
+++ b/tests/baselines/reference/commentsdoNotEmitComments.js
@@ -93,6 +93,20 @@ var shade: color = color.green;
 
 
 //// [commentsdoNotEmitComments.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var myVariable = 10;
 function foo(p) {
 }
@@ -119,6 +133,7 @@ var c = (function () {
     c.prototype.foo1 = function (aOrb) {
         return aOrb.toString();
     };
+    __names(c.prototype, ["myFoo", "foo1"]);
     return c;
 }());
 var i = new c();
diff --git a/tests/baselines/reference/commentsemitComments.js b/tests/baselines/reference/commentsemitComments.js
index 6e0497fcf7fac..850ed9c226bac 100644
--- a/tests/baselines/reference/commentsemitComments.js
+++ b/tests/baselines/reference/commentsemitComments.js
@@ -88,6 +88,20 @@ declare var x;
 
 
 //// [commentsemitComments.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 /** Variable comments*/
 var myVariable = 10;
 /** function comments*/
@@ -124,6 +138,7 @@ var c = (function () {
     c.prototype.foo1 = function (aOrb) {
         return aOrb.toString();
     };
+    __names(c.prototype, ["myFoo", "foo1"]);
     return c;
 }());
 /**instance comment*/
diff --git a/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js b/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js
index f017fe974bc89..a02c8278ed2a9 100644
--- a/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js
+++ b/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js
@@ -195,6 +195,20 @@ var r8b6 = b5 !== a5;
 var r8b7 = b6 !== a6;
 
 //// [comparisonOperatorWithIdenticalObjects.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -211,6 +225,7 @@ var A1 = (function () {
     A1.prototype.fn = function (a) {
         return null;
     };
+    __names(A1.prototype, ["fn"]);
     return A1;
 }());
 var B1 = (function () {
@@ -219,6 +234,7 @@ var B1 = (function () {
     B1.prototype.fn = function (b) {
         return null;
     };
+    __names(B1.prototype, ["fn"]);
     return B1;
 }());
 var Base = (function () {
@@ -227,6 +243,7 @@ var Base = (function () {
     Base.prototype.fn = function (b) {
         return null;
     };
+    __names(Base.prototype, ["fn"]);
     return Base;
 }());
 var A2 = (function (_super) {
diff --git a/tests/baselines/reference/complexClassRelationships.js b/tests/baselines/reference/complexClassRelationships.js
index 2bc345bd49980..8732e7863060a 100644
--- a/tests/baselines/reference/complexClassRelationships.js
+++ b/tests/baselines/reference/complexClassRelationships.js
@@ -58,6 +58,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // There should be no errors in this file
 var Derived = (function (_super) {
     __extends(Derived, _super);
@@ -119,6 +133,7 @@ var Foo = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Foo.prototype, ["populate"]);
     return Foo;
 }());
 var GenericType = (function () {
@@ -131,5 +146,6 @@ var FooBase = (function () {
     }
     FooBase.prototype.populate = function () {
     };
+    __names(FooBase.prototype, ["populate"]);
     return FooBase;
 }());
diff --git a/tests/baselines/reference/complexNarrowingWithAny.js b/tests/baselines/reference/complexNarrowingWithAny.js
index 4531cde9f3ed3..bac4d0363e2b3 100644
--- a/tests/baselines/reference/complexNarrowingWithAny.js
+++ b/tests/baselines/reference/complexNarrowingWithAny.js
@@ -562,6 +562,20 @@ export function viewFactory_AppComponent0(viewUtils:any,parentInjector:any,decla
 //// [complexNarrowingWithAny.js]
 "use strict";
 // Repro from #10869
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 /**
  * This file is generated by the Angular 2 template compiler.
@@ -1020,6 +1034,7 @@ var _View_AppComponent0 = (function () {
         }
         return notFoundResult;
     };
+    __names(_View_AppComponent0.prototype, ["injectorGetInternal"]);
     return _View_AppComponent0;
 }());
 function viewFactory_AppComponent0(viewUtils, parentInjector, declarationEl) {
diff --git a/tests/baselines/reference/complicatedPrivacy.js b/tests/baselines/reference/complicatedPrivacy.js
index ffb328f2e94c3..9a36ad1589605 100644
--- a/tests/baselines/reference/complicatedPrivacy.js
+++ b/tests/baselines/reference/complicatedPrivacy.js
@@ -105,6 +105,20 @@ module mglo5 {
 
 
 //// [complicatedPrivacy.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var m1;
 (function (m1) {
     var m2;
@@ -130,6 +144,7 @@ var m1;
             C2.prototype.f55 = function () {
                 return "Hello world";
             };
+            __names(C2.prototype, ["f55"]);
             return C2;
         }());
         m2.C2 = C2;
@@ -179,6 +194,7 @@ var m2;
             c_pr.prototype.f1 = function () {
                 return "Hello";
             };
+            __names(c_pr.prototype, ["f1"]);
             return c_pr;
         }());
         m3.c_pr = c_pr;
diff --git a/tests/baselines/reference/compoundAssignmentLHSIsValue.js b/tests/baselines/reference/compoundAssignmentLHSIsValue.js
index f5a0fc75da5cf..5623081a1358b 100644
--- a/tests/baselines/reference/compoundAssignmentLHSIsValue.js
+++ b/tests/baselines/reference/compoundAssignmentLHSIsValue.js
@@ -123,6 +123,20 @@ foo() += value;
 (foo()) += value;
 
 //// [compoundAssignmentLHSIsValue.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -149,6 +163,7 @@ var C = (function () {
         this *= value;
         this += value;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 function foo() {
@@ -214,6 +229,7 @@ var Derived = (function (_super) {
         _super. *= value;
         _super. += value;
     };
+    __names(Derived.prototype, ["foo"]);
     return Derived;
 }(C));
 // function expression
diff --git a/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js b/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js
index bd152ea11ad75..ca2459a23e727 100644
--- a/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js
+++ b/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js
@@ -86,6 +86,20 @@ foo() **= value;
 (foo()) **= value;
 
 //// [compoundExponentiationAssignmentLHSIsValue.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -109,6 +123,7 @@ var C = (function () {
     C.sfoo = function () {
         this = Math.pow(this, value);
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 function foo() {
@@ -157,6 +172,7 @@ var Derived = (function (_super) {
         (_a = _super). = Math.pow(_a., value);
         var _a;
     };
+    __names(Derived.prototype, ["foo"]);
     return Derived;
 }(C));
 // function expression
diff --git a/tests/baselines/reference/computedPropertyNames10_ES5.js b/tests/baselines/reference/computedPropertyNames10_ES5.js
index 302f9355be850..af70c23380470 100644
--- a/tests/baselines/reference/computedPropertyNames10_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames10_ES5.js
@@ -17,20 +17,34 @@ var v = {
 }
 
 //// [computedPropertyNames10_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var s;
 var n;
 var a;
 var v = (_a = {},
-    _a[s] = function () { },
-    _a[n] = function () { },
-    _a[s + s] = function () { },
-    _a[s + n] = function () { },
-    _a[+s] = function () { },
-    _a[""] = function () { },
-    _a[0] = function () { },
-    _a[a] = function () { },
-    _a[true] = function () { },
-    _a["hello bye"] = function () { },
-    _a["hello " + a + " bye"] = function () { },
+    _a[_b = s] = function () { },
+    _a[_c = n] = function () { },
+    _a[_d = s + s] = function () { },
+    _a[_e = s + n] = function () { },
+    _a[_f = +s] = function () { },
+    _a[_g = ""] = function () { },
+    _a[_h = 0] = function () { },
+    _a[_j = a] = function () { },
+    _a[_k = true] = function () { },
+    _a[_l = "hello bye"] = function () { },
+    _a[_m = "hello " + a + " bye"] = function () { }, __names(_a, [_b, _c, _d, _e, _f, _g, _h, _j, _k, _l, _m]),
     _a);
-var _a;
+var _a, _b, _c, _d, _e, _f, _g, _h, _j, _k, _l, _m;
diff --git a/tests/baselines/reference/computedPropertyNames13_ES5.js b/tests/baselines/reference/computedPropertyNames13_ES5.js
index 0b713c5c8d78c..a3a1e6cc7790d 100644
--- a/tests/baselines/reference/computedPropertyNames13_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames13_ES5.js
@@ -17,22 +17,38 @@ class C {
 }
 
 //// [computedPropertyNames13_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var s;
 var n;
 var a;
 var C = (function () {
     function C() {
     }
-    C.prototype[s] = function () { };
-    C.prototype[n] = function () { };
+    C.prototype[_a = s] = function () { };
+    C.prototype[_b = n] = function () { };
     C[s + s] = function () { };
-    C.prototype[s + n] = function () { };
-    C.prototype[+s] = function () { };
+    C.prototype[_c = s + n] = function () { };
+    C.prototype[_d = +s] = function () { };
     C[""] = function () { };
-    C.prototype[0] = function () { };
-    C.prototype[a] = function () { };
+    C.prototype[_e = 0] = function () { };
+    C.prototype[_f = a] = function () { };
     C[true] = function () { };
-    C.prototype["hello bye"] = function () { };
+    C.prototype[_g = "hello bye"] = function () { };
     C["hello " + a + " bye"] = function () { };
+    __names(C.prototype, [_a, _b, _c, _d, _e, _f, _g]);
     return C;
+    var _a, _b, _c, _d, _e, _f, _g;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames14_ES5.js b/tests/baselines/reference/computedPropertyNames14_ES5.js
index e08ae0fd640de..cb460e507a3df 100644
--- a/tests/baselines/reference/computedPropertyNames14_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames14_ES5.js
@@ -10,15 +10,31 @@ class C {
 }
 
 //// [computedPropertyNames14_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var b;
 var C = (function () {
     function C() {
     }
-    C.prototype[b] = function () { };
+    C.prototype[_a = b] = function () { };
     C[true] = function () { };
-    C.prototype[[]] = function () { };
+    C.prototype[_b = []] = function () { };
     C[{}] = function () { };
-    C.prototype[undefined] = function () { };
+    C.prototype[_c = undefined] = function () { };
     C[null] = function () { };
+    __names(C.prototype, [_a, _b, _c]);
     return C;
+    var _a, _b, _c;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames15_ES5.js b/tests/baselines/reference/computedPropertyNames15_ES5.js
index 91ec9332be8cc..f6cdaf4abce01 100644
--- a/tests/baselines/reference/computedPropertyNames15_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames15_ES5.js
@@ -9,14 +9,30 @@ class C {
 }
 
 //// [computedPropertyNames15_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var p1;
 var p2;
 var p3;
 var C = (function () {
     function C() {
     }
-    C.prototype[p1] = function () { };
-    C.prototype[p2] = function () { };
-    C.prototype[p3] = function () { };
+    C.prototype[_a = p1] = function () { };
+    C.prototype[_b = p2] = function () { };
+    C.prototype[_c = p3] = function () { };
+    __names(C.prototype, [_a, _b, _c]);
     return C;
+    var _a, _b, _c;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames21_ES5.js b/tests/baselines/reference/computedPropertyNames21_ES5.js
index 655de136c349c..366b06bf9ce66 100644
--- a/tests/baselines/reference/computedPropertyNames21_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames21_ES5.js
@@ -7,12 +7,28 @@ class C {
 }
 
 //// [computedPropertyNames21_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.bar = function () {
         return 0;
     };
-    C.prototype[this.bar()] = function () { };
+    C.prototype[_a = this.bar()] = function () { };
+    __names(C.prototype, ["bar", _a]);
     return C;
+    var _a;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames22_ES5.js b/tests/baselines/reference/computedPropertyNames22_ES5.js
index 721418ee930d4..fbfaf84111e3d 100644
--- a/tests/baselines/reference/computedPropertyNames22_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames22_ES5.js
@@ -9,15 +9,30 @@ class C {
 }
 
 //// [computedPropertyNames22_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.bar = function () {
         var obj = (_a = {},
-            _a[this.bar()] = function () { },
+            _a[_b = this.bar()] = function () { }, __names(_a, [_b]),
             _a);
         return 0;
-        var _a;
+        var _a, _b;
     };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames23_ES5.js b/tests/baselines/reference/computedPropertyNames23_ES5.js
index 666807f9f8ef6..f640239062130 100644
--- a/tests/baselines/reference/computedPropertyNames23_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames23_ES5.js
@@ -9,13 +9,28 @@ class C {
 }
 
 //// [computedPropertyNames23_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.bar = function () {
         return 0;
     };
-    C.prototype[(_a = {}, _a[this.bar()] = 1, _a)[0]] = function () { };
+    C.prototype[_a = (_b = {}, _b[this.bar()] = 1, _b)[0]] = function () { };
+    __names(C.prototype, ["bar", _a]);
     return C;
-    var _a;
+    var _b, _a;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames24_ES5.js b/tests/baselines/reference/computedPropertyNames24_ES5.js
index dd229bdcae2ce..af40d6584858c 100644
--- a/tests/baselines/reference/computedPropertyNames24_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames24_ES5.js
@@ -9,6 +9,20 @@ class C extends Base {
 }
 
 //// [computedPropertyNames24_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -25,6 +39,7 @@ var Base = (function () {
     Base.prototype.bar = function () {
         return 0;
     };
+    __names(Base.prototype, ["bar"]);
     return Base;
 }());
 var C = (function (_super) {
@@ -32,6 +47,8 @@ var C = (function (_super) {
     function C() {
         return _super !== null && _super.apply(this, arguments) || this;
     }
-    C.prototype[_super.bar.call(this)] = function () { };
+    C.prototype[_a = _super.bar.call(this)] = function () { };
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }(Base));
diff --git a/tests/baselines/reference/computedPropertyNames25_ES5.js b/tests/baselines/reference/computedPropertyNames25_ES5.js
index 18ee07301e717..7dd0db2b6bb0e 100644
--- a/tests/baselines/reference/computedPropertyNames25_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames25_ES5.js
@@ -14,6 +14,20 @@ class C extends Base {
 }
 
 //// [computedPropertyNames25_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -30,6 +44,7 @@ var Base = (function () {
     Base.prototype.bar = function () {
         return 0;
     };
+    __names(Base.prototype, ["bar"]);
     return Base;
 }());
 var C = (function (_super) {
@@ -39,10 +54,11 @@ var C = (function (_super) {
     }
     C.prototype.foo = function () {
         var obj = (_a = {},
-            _a[_super.prototype.bar.call(this)] = function () { },
+            _a[_b = _super.prototype.bar.call(this)] = function () { }, __names(_a, [_b]),
             _a);
         return 0;
-        var _a;
+        var _a, _b;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }(Base));
diff --git a/tests/baselines/reference/computedPropertyNames26_ES5.js b/tests/baselines/reference/computedPropertyNames26_ES5.js
index 78a7ef3af776b..7fe8eea00c281 100644
--- a/tests/baselines/reference/computedPropertyNames26_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames26_ES5.js
@@ -11,6 +11,20 @@ class C extends Base {
 }
 
 //// [computedPropertyNames26_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -27,6 +41,7 @@ var Base = (function () {
     Base.prototype.bar = function () {
         return 0;
     };
+    __names(Base.prototype, ["bar"]);
     return Base;
 }());
 var C = (function (_super) {
@@ -34,7 +49,8 @@ var C = (function (_super) {
     function C() {
         return _super !== null && _super.apply(this, arguments) || this;
     }
-    C.prototype[(_a = {}, _a[_super.bar.call(this)] = 1, _a)[0]] = function () { };
+    C.prototype[_a = (_b = {}, _b[_super.bar.call(this)] = 1, _b)[0]] = function () { };
+    __names(C.prototype, [_a]);
     return C;
-    var _a;
+    var _b, _a;
 }(Base));
diff --git a/tests/baselines/reference/computedPropertyNames27_ES5.js b/tests/baselines/reference/computedPropertyNames27_ES5.js
index 9af56a8835b1d..6c68f6ee19bdd 100644
--- a/tests/baselines/reference/computedPropertyNames27_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames27_ES5.js
@@ -16,6 +16,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
@@ -26,6 +40,8 @@ var C = (function (_super) {
     function C() {
         return _super !== null && _super.apply(this, arguments) || this;
     }
-    C.prototype[(_this = _super.call(this) || this, "prop")] = function () { };
+    C.prototype[_a = (_this = _super.call(this) || this, "prop")] = function () { };
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }(Base));
diff --git a/tests/baselines/reference/computedPropertyNames28_ES5.js b/tests/baselines/reference/computedPropertyNames28_ES5.js
index c6e2c5d77320f..a801e9b536b86 100644
--- a/tests/baselines/reference/computedPropertyNames28_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames28_ES5.js
@@ -21,6 +21,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
@@ -31,10 +45,10 @@ var C = (function (_super) {
     function C() {
         var _this = _super.call(this) || this;
         var obj = (_a = {},
-            _a[(_this = _super.call(this) || this, "prop")] = function () { },
+            _a[_b = (_this = _super.call(this) || this, "prop")] = function () { }, __names(_a, [_b]),
             _a);
         return _this;
-        var _a;
+        var _a, _b;
     }
     return C;
 }(Base));
diff --git a/tests/baselines/reference/computedPropertyNames29_ES5.js b/tests/baselines/reference/computedPropertyNames29_ES5.js
index 966081ae03501..3bd4238d16673 100644
--- a/tests/baselines/reference/computedPropertyNames29_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames29_ES5.js
@@ -11,6 +11,20 @@ class C {
 }
 
 //// [computedPropertyNames29_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -18,12 +32,13 @@ var C = (function () {
         var _this = this;
         (function () {
             var obj = (_a = {},
-                _a[_this.bar()] = function () { } // needs capture
-            ,
+                _a[_b = _this.bar()] = function () { } // needs capture
+            , __names(_a, [_b]),
                 _a);
-            var _a;
+            var _a, _b;
         });
         return 0;
     };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames2_ES5.js b/tests/baselines/reference/computedPropertyNames2_ES5.js
index 9211fccb530fd..4744a6c5175bc 100644
--- a/tests/baselines/reference/computedPropertyNames2_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames2_ES5.js
@@ -11,12 +11,26 @@ class C {
 }
 
 //// [computedPropertyNames2_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var methodName = "method";
 var accessorName = "accessor";
 var C = (function () {
     function C() {
     }
-    C.prototype[methodName] = function () { };
+    C.prototype[_a = methodName] = function () { };
     C[methodName] = function () { };
     Object.defineProperty(C.prototype, accessorName, {
         get: function () { },
@@ -38,5 +52,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames30_ES5.js b/tests/baselines/reference/computedPropertyNames30_ES5.js
index f029b9b865132..24741b44de518 100644
--- a/tests/baselines/reference/computedPropertyNames30_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames30_ES5.js
@@ -26,6 +26,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
@@ -40,9 +54,9 @@ var C = (function (_super) {
                 // Ideally, we would capture this. But the reference is
                 // illegal, and not capturing this is consistent with
                 //treatment of other similar violations.
-                _a[(_this = _super.call(this) || this, "prop")] = function () { },
+                _a[_b = (_this = _super.call(this) || this, "prop")] = function () { }, __names(_a, [_b]),
                 _a);
-            var _a;
+            var _a, _b;
         });
         return _this;
     }
diff --git a/tests/baselines/reference/computedPropertyNames31_ES5.js b/tests/baselines/reference/computedPropertyNames31_ES5.js
index 95caabc4bda0a..2b0af1b947122 100644
--- a/tests/baselines/reference/computedPropertyNames31_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames31_ES5.js
@@ -16,6 +16,20 @@ class C extends Base {
 }
 
 //// [computedPropertyNames31_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -32,6 +46,7 @@ var Base = (function () {
     Base.prototype.bar = function () {
         return 0;
     };
+    __names(Base.prototype, ["bar"]);
     return Base;
 }());
 var C = (function (_super) {
@@ -43,12 +58,13 @@ var C = (function (_super) {
         var _this = this;
         (function () {
             var obj = (_a = {},
-                _a[_super.prototype.bar.call(_this)] = function () { } // needs capture
-            ,
+                _a[_b = _super.prototype.bar.call(_this)] = function () { } // needs capture
+            , __names(_a, [_b]),
                 _a);
-            var _a;
+            var _a, _b;
         });
         return 0;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }(Base));
diff --git a/tests/baselines/reference/computedPropertyNames32_ES5.js b/tests/baselines/reference/computedPropertyNames32_ES5.js
index 1ae07d37e4237..2f109349d50a5 100644
--- a/tests/baselines/reference/computedPropertyNames32_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames32_ES5.js
@@ -8,6 +8,20 @@ class C<T> {
 }
 
 //// [computedPropertyNames32_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo() { return ''; }
 var C = (function () {
     function C() {
@@ -15,6 +29,8 @@ var C = (function () {
     C.prototype.bar = function () {
         return 0;
     };
-    C.prototype[foo()] = function () { };
+    C.prototype[_a = foo()] = function () { };
+    __names(C.prototype, ["bar", _a]);
     return C;
+    var _a;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames33_ES5.js b/tests/baselines/reference/computedPropertyNames33_ES5.js
index e6d46b03c100e..9babd055223a1 100644
--- a/tests/baselines/reference/computedPropertyNames33_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames33_ES5.js
@@ -10,16 +10,31 @@ class C<T> {
 }
 
 //// [computedPropertyNames33_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo() { return ''; }
 var C = (function () {
     function C() {
     }
     C.prototype.bar = function () {
         var obj = (_a = {},
-            _a[foo()] = function () { },
+            _a[_b = foo()] = function () { }, __names(_a, [_b]),
             _a);
         return 0;
-        var _a;
+        var _a, _b;
     };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames34_ES5.js b/tests/baselines/reference/computedPropertyNames34_ES5.js
index 3109c400422d0..0caee13fdde61 100644
--- a/tests/baselines/reference/computedPropertyNames34_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames34_ES5.js
@@ -10,16 +10,30 @@ class C<T> {
 }
 
 //// [computedPropertyNames34_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo() { return ''; }
 var C = (function () {
     function C() {
     }
     C.bar = function () {
         var obj = (_a = {},
-            _a[foo()] = function () { },
+            _a[_b = foo()] = function () { }, __names(_a, [_b]),
             _a);
         return 0;
-        var _a;
+        var _a, _b;
     };
     return C;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames3_ES5.js b/tests/baselines/reference/computedPropertyNames3_ES5.js
index 94821a6597401..ae85b07a974e6 100644
--- a/tests/baselines/reference/computedPropertyNames3_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames3_ES5.js
@@ -10,11 +10,25 @@ class C {
 }
 
 //// [computedPropertyNames3_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var id;
 var C = (function () {
     function C() {
     }
-    C.prototype[0 + 1] = function () { };
+    C.prototype[_a = 0 + 1] = function () { };
     C[function () { }] = function () { };
     Object.defineProperty(C.prototype, delete id, {
         get: function () { },
@@ -36,5 +50,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }());
diff --git a/tests/baselines/reference/computedPropertyNames40_ES5.js b/tests/baselines/reference/computedPropertyNames40_ES5.js
index a291349d0cff9..1c08223b610a2 100644
--- a/tests/baselines/reference/computedPropertyNames40_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames40_ES5.js
@@ -11,6 +11,20 @@ class C {
 }
 
 //// [computedPropertyNames40_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -25,7 +39,9 @@ var C = (function () {
     function C() {
     }
     // Computed properties
-    C.prototype[""] = function () { return new Foo; };
-    C.prototype[""] = function () { return new Foo2; };
+    C.prototype[_a = ""] = function () { return new Foo; };
+    C.prototype[_b = ""] = function () { return new Foo2; };
+    __names(C.prototype, [_a, _b]);
     return C;
+    var _a, _b;
 }());
diff --git a/tests/baselines/reference/computedPropertyNamesContextualType1_ES5.js b/tests/baselines/reference/computedPropertyNamesContextualType1_ES5.js
index 1ee8835115415..0059503531577 100644
--- a/tests/baselines/reference/computedPropertyNamesContextualType1_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesContextualType1_ES5.js
@@ -10,8 +10,22 @@ var o: I = {
 }
 
 //// [computedPropertyNamesContextualType1_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var o = (_a = {},
-    _a["" + 0] = function (y) { return y.length; },
-    _a["" + 1] = function (y) { return y.length; },
+    _a[_b = "" + 0] = function (y) { return y.length; },
+    _a["" + 1] = function (y) { return y.length; }, __names(_a, [_b]),
     _a);
-var _a;
+var _a, _b;
diff --git a/tests/baselines/reference/computedPropertyNamesContextualType2_ES5.js b/tests/baselines/reference/computedPropertyNamesContextualType2_ES5.js
index 6be09e4bef3f3..b1d59f8f30b4a 100644
--- a/tests/baselines/reference/computedPropertyNamesContextualType2_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesContextualType2_ES5.js
@@ -10,8 +10,22 @@ var o: I = {
 }
 
 //// [computedPropertyNamesContextualType2_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var o = (_a = {},
-    _a[+"foo"] = function (y) { return y.length; },
-    _a[+"bar"] = function (y) { return y.length; },
+    _a[_b = +"foo"] = function (y) { return y.length; },
+    _a[+"bar"] = function (y) { return y.length; }, __names(_a, [_b]),
     _a);
-var _a;
+var _a, _b;
diff --git a/tests/baselines/reference/computedPropertyNamesContextualType3_ES5.js b/tests/baselines/reference/computedPropertyNamesContextualType3_ES5.js
index b510cda2916f4..b2e2d969e993e 100644
--- a/tests/baselines/reference/computedPropertyNamesContextualType3_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesContextualType3_ES5.js
@@ -9,8 +9,22 @@ var o: I = {
 }
 
 //// [computedPropertyNamesContextualType3_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var o = (_a = {},
-    _a[+"foo"] = function (y) { return y.length; },
-    _a[+"bar"] = function (y) { return y.length; },
+    _a[_b = +"foo"] = function (y) { return y.length; },
+    _a[+"bar"] = function (y) { return y.length; }, __names(_a, [_b]),
     _a);
-var _a;
+var _a, _b;
diff --git a/tests/baselines/reference/computedPropertyNamesDeclarationEmit1_ES5.js b/tests/baselines/reference/computedPropertyNamesDeclarationEmit1_ES5.js
index 7becf285b2a28..af44f1aa05bcf 100644
--- a/tests/baselines/reference/computedPropertyNamesDeclarationEmit1_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesDeclarationEmit1_ES5.js
@@ -6,10 +6,24 @@ class C {
 }
 
 //// [computedPropertyNamesDeclarationEmit1_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
-    C.prototype["" + ""] = function () { };
+    C.prototype[_a = "" + ""] = function () { };
     Object.defineProperty(C.prototype, "" + "", {
         get: function () { return 0; },
         enumerable: true,
@@ -20,7 +34,9 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }());
 
 
diff --git a/tests/baselines/reference/computedPropertyNamesDeclarationEmit5_ES5.js b/tests/baselines/reference/computedPropertyNamesDeclarationEmit5_ES5.js
index bf589768b727a..c41f85fad4f45 100644
--- a/tests/baselines/reference/computedPropertyNamesDeclarationEmit5_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesDeclarationEmit5_ES5.js
@@ -7,9 +7,23 @@ var v = {
 }
 
 //// [computedPropertyNamesDeclarationEmit5_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var v = (_a = {},
     _a["" + ""] = 0,
-    _a["" + ""] = function () { },
+    _a[_b = "" + ""] = function () { },
     Object.defineProperty(_a, "" + "", {
         get: function () { return 0; },
         enumerable: true,
@@ -19,9 +33,9 @@ var v = (_a = {},
         set: function (x) { },
         enumerable: true,
         configurable: true
-    }),
+    }), __names(_a, [_b]),
     _a);
-var _a;
+var _a, _b;
 
 
 //// [computedPropertyNamesDeclarationEmit5_ES5.d.ts]
diff --git a/tests/baselines/reference/computedPropertyNamesOnOverloads_ES5.js b/tests/baselines/reference/computedPropertyNamesOnOverloads_ES5.js
index 5562e1ea73c43..fdfba4a8e701b 100644
--- a/tests/baselines/reference/computedPropertyNamesOnOverloads_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesOnOverloads_ES5.js
@@ -8,11 +8,27 @@ class C {
 }
 
 //// [computedPropertyNamesOnOverloads_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var methodName = "method";
 var accessorName = "accessor";
 var C = (function () {
     function C() {
     }
-    C.prototype[methodName] = function (v) { };
+    C.prototype[_a = methodName] = function (v) { };
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }());
diff --git a/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js b/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js
index b03f4d3696eb4..d5b036de58465 100644
--- a/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js
@@ -9,10 +9,24 @@ class C {
 }
 
 //// [computedPropertyNamesSourceMap1_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
-    C.prototype["hello"] = function () {
+    C.prototype[_a = "hello"] = function () {
         debugger;
     };
     Object.defineProperty(C.prototype, "goodbye", {
@@ -22,6 +36,8 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }());
 //# sourceMappingURL=computedPropertyNamesSourceMap1_ES5.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js.map b/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js.map
index 114df45af46ff..4cf17a73112d8 100644
--- a/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js.map
+++ b/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js.map
@@ -1,2 +1,2 @@
 //// [computedPropertyNamesSourceMap1_ES5.js.map]
-{"version":3,"file":"computedPropertyNamesSourceMap1_ES5.js","sourceRoot":"","sources":["computedPropertyNamesSourceMap1_ES5.ts"],"names":[],"mappings":"AAAA;IAAA;IAOA,CAAC;IANG,YAAC,OAAO,CAAC,GAAT;QACI,QAAQ,CAAC;IACb,CAAC;IACD,sBAAI,sBAAW;aAAf;YACF,MAAM,CAAC,CAAC,CAAC;QACP,CAAC;;;OAAA;IACL,QAAC;AAAD,CAAC,AAPD,IAOC"}
\ No newline at end of file
+{"version":3,"file":"computedPropertyNamesSourceMap1_ES5.js","sourceRoot":"","sources":["computedPropertyNamesSourceMap1_ES5.ts"],"names":[],"mappings":";;;;;;;;;;;;;;AAAA;IAAA;IAOA,CAAC;IANG,iBAAC,OAAO,CAAC,GAAT;QACI,QAAQ,CAAC;IACb,CAAC;IACD,sBAAI,sBAAW;aAAf;YACF,MAAM,CAAC,CAAC,CAAC;QACP,CAAC;;;OAAA;;IACL,QAAC;;AAAD,CAAC,AAPD,IAOC"}
\ No newline at end of file
diff --git a/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.sourcemap.txt b/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.sourcemap.txt
index fc571a3140ebd..219efededfb2f 100644
--- a/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.sourcemap.txt
+++ b/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.sourcemap.txt
@@ -8,22 +8,36 @@ sources: computedPropertyNamesSourceMap1_ES5.ts
 emittedFile:tests/cases/conformance/es6/computedProperties/computedPropertyNamesSourceMap1_ES5.js
 sourceFile:computedPropertyNamesSourceMap1_ES5.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>var C = (function () {
 1 >
 2 >^^^^^^^^^^^^^^^^^^^->
 1 >
-1 >Emitted(1, 1) Source(1, 1) + SourceIndex(0)
+1 >Emitted(15, 1) Source(1, 1) + SourceIndex(0)
 ---
 >>>    function C() {
 1->^^^^
 2 >    ^^->
 1->
-1->Emitted(2, 5) Source(1, 1) + SourceIndex(0)
+1->Emitted(16, 5) Source(1, 1) + SourceIndex(0)
 ---
 >>>    }
 1->^^^^
 2 >    ^
-3 >     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
+3 >     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->class C {
   >    ["hello"]() {
   >        debugger;
@@ -33,25 +47,25 @@ sourceFile:computedPropertyNamesSourceMap1_ES5.ts
   >    }
   >
 2 >    }
-1->Emitted(3, 5) Source(8, 1) + SourceIndex(0)
-2 >Emitted(3, 6) Source(8, 2) + SourceIndex(0)
+1->Emitted(17, 5) Source(8, 1) + SourceIndex(0)
+2 >Emitted(17, 6) Source(8, 2) + SourceIndex(0)
 ---
->>>    C.prototype["hello"] = function () {
+>>>    C.prototype[_a = "hello"] = function () {
 1->^^^^
-2 >    ^^^^^^^^^^^^
-3 >                ^^^^^^^
-4 >                       ^
-5 >                        ^^^
+2 >    ^^^^^^^^^^^^^^^^^
+3 >                     ^^^^^^^
+4 >                            ^
+5 >                             ^^^
 1->
 2 >    [
-3 >                "hello"
-4 >                       ]
-5 >                        
-1->Emitted(4, 5) Source(2, 5) + SourceIndex(0)
-2 >Emitted(4, 17) Source(2, 6) + SourceIndex(0)
-3 >Emitted(4, 24) Source(2, 13) + SourceIndex(0)
-4 >Emitted(4, 25) Source(2, 14) + SourceIndex(0)
-5 >Emitted(4, 28) Source(2, 5) + SourceIndex(0)
+3 >                     "hello"
+4 >                            ]
+5 >                             
+1->Emitted(18, 5) Source(2, 5) + SourceIndex(0)
+2 >Emitted(18, 22) Source(2, 6) + SourceIndex(0)
+3 >Emitted(18, 29) Source(2, 13) + SourceIndex(0)
+4 >Emitted(18, 30) Source(2, 14) + SourceIndex(0)
+5 >Emitted(18, 33) Source(2, 5) + SourceIndex(0)
 ---
 >>>        debugger;
 1 >^^^^^^^^
@@ -61,9 +75,9 @@ sourceFile:computedPropertyNamesSourceMap1_ES5.ts
   >        
 2 >        debugger
 3 >                ;
-1 >Emitted(5, 9) Source(3, 9) + SourceIndex(0)
-2 >Emitted(5, 17) Source(3, 17) + SourceIndex(0)
-3 >Emitted(5, 18) Source(3, 18) + SourceIndex(0)
+1 >Emitted(19, 9) Source(3, 9) + SourceIndex(0)
+2 >Emitted(19, 17) Source(3, 17) + SourceIndex(0)
+3 >Emitted(19, 18) Source(3, 18) + SourceIndex(0)
 ---
 >>>    };
 1 >^^^^
@@ -72,8 +86,8 @@ sourceFile:computedPropertyNamesSourceMap1_ES5.ts
 1 >
   >    
 2 >    }
-1 >Emitted(6, 5) Source(4, 5) + SourceIndex(0)
-2 >Emitted(6, 6) Source(4, 6) + SourceIndex(0)
+1 >Emitted(20, 5) Source(4, 5) + SourceIndex(0)
+2 >Emitted(20, 6) Source(4, 6) + SourceIndex(0)
 ---
 >>>    Object.defineProperty(C.prototype, "goodbye", {
 1->^^^^
@@ -83,15 +97,15 @@ sourceFile:computedPropertyNamesSourceMap1_ES5.ts
   >    
 2 >    get 
 3 >                          ["goodbye"]
-1->Emitted(7, 5) Source(5, 5) + SourceIndex(0)
-2 >Emitted(7, 27) Source(5, 9) + SourceIndex(0)
-3 >Emitted(7, 49) Source(5, 20) + SourceIndex(0)
+1->Emitted(21, 5) Source(5, 5) + SourceIndex(0)
+2 >Emitted(21, 27) Source(5, 9) + SourceIndex(0)
+3 >Emitted(21, 49) Source(5, 20) + SourceIndex(0)
 ---
 >>>        get: function () {
 1 >^^^^^^^^^^^^^
 2 >             ^^^^^^^^^->
 1 >
-1 >Emitted(8, 14) Source(5, 5) + SourceIndex(0)
+1 >Emitted(22, 14) Source(5, 5) + SourceIndex(0)
 ---
 >>>            return 0;
 1->^^^^^^^^^^^^
@@ -105,11 +119,11 @@ sourceFile:computedPropertyNamesSourceMap1_ES5.ts
 3 >                   
 4 >                   0
 5 >                    ;
-1->Emitted(9, 13) Source(6, 3) + SourceIndex(0)
-2 >Emitted(9, 19) Source(6, 9) + SourceIndex(0)
-3 >Emitted(9, 20) Source(6, 10) + SourceIndex(0)
-4 >Emitted(9, 21) Source(6, 11) + SourceIndex(0)
-5 >Emitted(9, 22) Source(6, 12) + SourceIndex(0)
+1->Emitted(23, 13) Source(6, 3) + SourceIndex(0)
+2 >Emitted(23, 19) Source(6, 9) + SourceIndex(0)
+3 >Emitted(23, 20) Source(6, 10) + SourceIndex(0)
+4 >Emitted(23, 21) Source(6, 11) + SourceIndex(0)
+5 >Emitted(23, 22) Source(6, 12) + SourceIndex(0)
 ---
 >>>        },
 1 >^^^^^^^^
@@ -118,26 +132,28 @@ sourceFile:computedPropertyNamesSourceMap1_ES5.ts
 1 >
   >    
 2 >        }
-1 >Emitted(10, 9) Source(7, 5) + SourceIndex(0)
-2 >Emitted(10, 10) Source(7, 6) + SourceIndex(0)
+1 >Emitted(24, 9) Source(7, 5) + SourceIndex(0)
+2 >Emitted(24, 10) Source(7, 6) + SourceIndex(0)
 ---
 >>>        enumerable: true,
 >>>        configurable: true
 >>>    });
 1->^^^^^^^
-2 >       ^^^^^^^->
+2 >       ^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->
-1->Emitted(13, 8) Source(7, 6) + SourceIndex(0)
+1->Emitted(27, 8) Source(7, 6) + SourceIndex(0)
 ---
+>>>    __names(C.prototype, [_a]);
 >>>    return C;
 1->^^^^
 2 >    ^^^^^^^^
 1->
   >
 2 >    }
-1->Emitted(14, 5) Source(8, 1) + SourceIndex(0)
-2 >Emitted(14, 13) Source(8, 2) + SourceIndex(0)
+1->Emitted(29, 5) Source(8, 1) + SourceIndex(0)
+2 >Emitted(29, 13) Source(8, 2) + SourceIndex(0)
 ---
+>>>    var _a;
 >>>}());
 1 >
 2 >^
@@ -155,9 +171,9 @@ sourceFile:computedPropertyNamesSourceMap1_ES5.ts
   > 		return 0;
   >     }
   > }
-1 >Emitted(15, 1) Source(8, 1) + SourceIndex(0)
-2 >Emitted(15, 2) Source(8, 2) + SourceIndex(0)
-3 >Emitted(15, 2) Source(1, 1) + SourceIndex(0)
-4 >Emitted(15, 6) Source(8, 2) + SourceIndex(0)
+1 >Emitted(31, 1) Source(8, 1) + SourceIndex(0)
+2 >Emitted(31, 2) Source(8, 2) + SourceIndex(0)
+3 >Emitted(31, 2) Source(1, 1) + SourceIndex(0)
+4 >Emitted(31, 6) Source(8, 2) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=computedPropertyNamesSourceMap1_ES5.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js b/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js
index d214a1ef99dda..152418521d9ae 100644
--- a/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js
@@ -9,8 +9,22 @@ var v = {
 }
 
 //// [computedPropertyNamesSourceMap2_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var v = (_a = {},
-    _a["hello"] = function () {
+    _a[_b = "hello"] = function () {
         debugger;
     },
     Object.defineProperty(_a, "goodbye", {
@@ -19,7 +33,7 @@ var v = (_a = {},
         },
         enumerable: true,
         configurable: true
-    }),
+    }), __names(_a, [_b]),
     _a);
-var _a;
+var _a, _b;
 //# sourceMappingURL=computedPropertyNamesSourceMap2_ES5.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js.map b/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js.map
index 36259a4c7cb26..dd71afa6acd0e 100644
--- a/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js.map
+++ b/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js.map
@@ -1,2 +1,2 @@
 //// [computedPropertyNamesSourceMap2_ES5.js.map]
-{"version":3,"file":"computedPropertyNamesSourceMap2_ES5.js","sourceRoot":"","sources":["computedPropertyNamesSourceMap2_ES5.ts"],"names":[],"mappings":"AAAA,IAAI,CAAC;IACD,GAAC,OAAO,IAAR;QACI,QAAQ,CAAC;IAChB,CAAC;0BACM,aAAW;aAAf;YACF,MAAM,CAAC,CAAC,CAAC;QACV,CAAC;;;;OACD,CAAA"}
\ No newline at end of file
+{"version":3,"file":"computedPropertyNamesSourceMap2_ES5.js","sourceRoot":"","sources":["computedPropertyNamesSourceMap2_ES5.ts"],"names":[],"mappings":";;;;;;;;;;;;;;AAAA,IAAI,CAAC;IACD,QAAC,OAAO,IAAR;QACI,QAAQ,CAAC;IAChB,CAAC;0BACM,aAAW;aAAf;YACF,MAAM,CAAC,CAAC,CAAC;QACV,CAAC;;;;OACD,CAAA"}
\ No newline at end of file
diff --git a/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.sourcemap.txt b/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.sourcemap.txt
index aa20d1d7960ff..2c5eb32d0b181 100644
--- a/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.sourcemap.txt
+++ b/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.sourcemap.txt
@@ -8,32 +8,46 @@ sources: computedPropertyNamesSourceMap2_ES5.ts
 emittedFile:tests/cases/conformance/es6/computedProperties/computedPropertyNamesSourceMap2_ES5.js
 sourceFile:computedPropertyNamesSourceMap2_ES5.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>var v = (_a = {},
 1 >
 2 >^^^^
 3 >    ^
-4 >     ^^^^^^^^^^^^^^^^^^^^^^^^^^^->
+4 >     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
 2 >var 
 3 >    v
-1 >Emitted(1, 1) Source(1, 1) + SourceIndex(0)
-2 >Emitted(1, 5) Source(1, 5) + SourceIndex(0)
-3 >Emitted(1, 6) Source(1, 6) + SourceIndex(0)
+1 >Emitted(15, 1) Source(1, 1) + SourceIndex(0)
+2 >Emitted(15, 5) Source(1, 5) + SourceIndex(0)
+3 >Emitted(15, 6) Source(1, 6) + SourceIndex(0)
 ---
->>>    _a["hello"] = function () {
+>>>    _a[_b = "hello"] = function () {
 1->^^^^
-2 >    ^^^
-3 >       ^^^^^^^
-4 >              ^^^^
+2 >    ^^^^^^^^
+3 >            ^^^^^^^
+4 >                   ^^^^
 1-> = {
   >    
 2 >    [
-3 >       "hello"
-4 >              
-1->Emitted(2, 5) Source(2, 5) + SourceIndex(0)
-2 >Emitted(2, 8) Source(2, 6) + SourceIndex(0)
-3 >Emitted(2, 15) Source(2, 13) + SourceIndex(0)
-4 >Emitted(2, 19) Source(2, 5) + SourceIndex(0)
+3 >            "hello"
+4 >                   
+1->Emitted(16, 5) Source(2, 5) + SourceIndex(0)
+2 >Emitted(16, 13) Source(2, 6) + SourceIndex(0)
+3 >Emitted(16, 20) Source(2, 13) + SourceIndex(0)
+4 >Emitted(16, 24) Source(2, 5) + SourceIndex(0)
 ---
 >>>        debugger;
 1 >^^^^^^^^
@@ -43,9 +57,9 @@ sourceFile:computedPropertyNamesSourceMap2_ES5.ts
   >        
 2 >        debugger
 3 >                ;
-1 >Emitted(3, 9) Source(3, 9) + SourceIndex(0)
-2 >Emitted(3, 17) Source(3, 17) + SourceIndex(0)
-3 >Emitted(3, 18) Source(3, 18) + SourceIndex(0)
+1 >Emitted(17, 9) Source(3, 9) + SourceIndex(0)
+2 >Emitted(17, 17) Source(3, 17) + SourceIndex(0)
+3 >Emitted(17, 18) Source(3, 18) + SourceIndex(0)
 ---
 >>>    },
 1 >^^^^
@@ -54,8 +68,8 @@ sourceFile:computedPropertyNamesSourceMap2_ES5.ts
 1 >
   >	
 2 >    }
-1 >Emitted(4, 5) Source(4, 2) + SourceIndex(0)
-2 >Emitted(4, 6) Source(4, 3) + SourceIndex(0)
+1 >Emitted(18, 5) Source(4, 2) + SourceIndex(0)
+2 >Emitted(18, 6) Source(4, 3) + SourceIndex(0)
 ---
 >>>    Object.defineProperty(_a, "goodbye", {
 1->^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -63,14 +77,14 @@ sourceFile:computedPropertyNamesSourceMap2_ES5.ts
 1->,
   >    get 
 2 >                          ["goodbye"]
-1->Emitted(5, 27) Source(5, 9) + SourceIndex(0)
-2 >Emitted(5, 40) Source(5, 20) + SourceIndex(0)
+1->Emitted(19, 27) Source(5, 9) + SourceIndex(0)
+2 >Emitted(19, 40) Source(5, 20) + SourceIndex(0)
 ---
 >>>        get: function () {
 1 >^^^^^^^^^^^^^
 2 >             ^^^^^^^^^->
 1 >
-1 >Emitted(6, 14) Source(5, 5) + SourceIndex(0)
+1 >Emitted(20, 14) Source(5, 5) + SourceIndex(0)
 ---
 >>>            return 0;
 1->^^^^^^^^^^^^
@@ -84,11 +98,11 @@ sourceFile:computedPropertyNamesSourceMap2_ES5.ts
 3 >                   
 4 >                   0
 5 >                    ;
-1->Emitted(7, 13) Source(6, 3) + SourceIndex(0)
-2 >Emitted(7, 19) Source(6, 9) + SourceIndex(0)
-3 >Emitted(7, 20) Source(6, 10) + SourceIndex(0)
-4 >Emitted(7, 21) Source(6, 11) + SourceIndex(0)
-5 >Emitted(7, 22) Source(6, 12) + SourceIndex(0)
+1->Emitted(21, 13) Source(6, 3) + SourceIndex(0)
+2 >Emitted(21, 19) Source(6, 9) + SourceIndex(0)
+3 >Emitted(21, 20) Source(6, 10) + SourceIndex(0)
+4 >Emitted(21, 21) Source(6, 11) + SourceIndex(0)
+5 >Emitted(21, 22) Source(6, 12) + SourceIndex(0)
 ---
 >>>        },
 1 >^^^^^^^^
@@ -97,20 +111,21 @@ sourceFile:computedPropertyNamesSourceMap2_ES5.ts
 1 >
   >	
 2 >        }
-1 >Emitted(8, 9) Source(7, 2) + SourceIndex(0)
-2 >Emitted(8, 10) Source(7, 3) + SourceIndex(0)
+1 >Emitted(22, 9) Source(7, 2) + SourceIndex(0)
+2 >Emitted(22, 10) Source(7, 3) + SourceIndex(0)
 ---
 >>>        enumerable: true,
 >>>        configurable: true
->>>    }),
+>>>    }), __names(_a, [_b]),
 >>>    _a);
 1->^^^^^^^
 2 >       ^
+3 >        ^^^^->
 1->
   >}
 2 >       
-1->Emitted(12, 8) Source(8, 2) + SourceIndex(0)
-2 >Emitted(12, 9) Source(8, 2) + SourceIndex(0)
+1->Emitted(26, 8) Source(8, 2) + SourceIndex(0)
+2 >Emitted(26, 9) Source(8, 2) + SourceIndex(0)
 ---
->>>var _a;
+>>>var _a, _b;
 >>>//# sourceMappingURL=computedPropertyNamesSourceMap2_ES5.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/conflictMarkerDiff3Trivia2.js b/tests/baselines/reference/conflictMarkerDiff3Trivia2.js
index 61a2273019b8a..6119862eb7ee2 100644
--- a/tests/baselines/reference/conflictMarkerDiff3Trivia2.js
+++ b/tests/baselines/reference/conflictMarkerDiff3Trivia2.js
@@ -17,6 +17,20 @@ class C {
 
 
 //// [conflictMarkerDiff3Trivia2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -24,5 +38,6 @@ var C = (function () {
         a();
     };
     C.prototype.bar = function () { };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/conflictMarkerTrivia2.js b/tests/baselines/reference/conflictMarkerTrivia2.js
index 1e58addf706de..6af12c6af847c 100644
--- a/tests/baselines/reference/conflictMarkerTrivia2.js
+++ b/tests/baselines/reference/conflictMarkerTrivia2.js
@@ -14,6 +14,20 @@ class C {
 
 
 //// [conflictMarkerTrivia2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -21,5 +35,6 @@ var C = (function () {
         a();
     };
     C.prototype.bar = function () { };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/constantOverloadFunction.js b/tests/baselines/reference/constantOverloadFunction.js
index f501623bae5e1..46b87c957f5be 100644
--- a/tests/baselines/reference/constantOverloadFunction.js
+++ b/tests/baselines/reference/constantOverloadFunction.js
@@ -14,6 +14,20 @@ function foo(tagName: any): Base {
 
 
 //// [constantOverloadFunction.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -28,6 +42,7 @@ var Base = (function () {
     function Base() {
     }
     Base.prototype.foo = function () { };
+    __names(Base.prototype, ["foo"]);
     return Base;
 }());
 var Derived1 = (function (_super) {
@@ -36,6 +51,7 @@ var Derived1 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived1.prototype.bar = function () { };
+    __names(Derived1.prototype, ["bar"]);
     return Derived1;
 }(Base));
 var Derived2 = (function (_super) {
@@ -44,6 +60,7 @@ var Derived2 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived2.prototype.baz = function () { };
+    __names(Derived2.prototype, ["baz"]);
     return Derived2;
 }(Base));
 var Derived3 = (function (_super) {
@@ -52,6 +69,7 @@ var Derived3 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived3.prototype.biz = function () { };
+    __names(Derived3.prototype, ["biz"]);
     return Derived3;
 }(Base));
 function foo(tagName) {
diff --git a/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js b/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js
index 2a86fb0c9a3f4..6d9a2ccf9901a 100644
--- a/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js
+++ b/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js
@@ -15,6 +15,20 @@ function foo(tagName: any): Base {
 
 
 //// [constantOverloadFunctionNoSubtypeError.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -29,6 +43,7 @@ var Base = (function () {
     function Base() {
     }
     Base.prototype.foo = function () { };
+    __names(Base.prototype, ["foo"]);
     return Base;
 }());
 var Derived1 = (function (_super) {
@@ -37,6 +52,7 @@ var Derived1 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived1.prototype.bar = function () { };
+    __names(Derived1.prototype, ["bar"]);
     return Derived1;
 }(Base));
 var Derived2 = (function (_super) {
@@ -45,6 +61,7 @@ var Derived2 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived2.prototype.baz = function () { };
+    __names(Derived2.prototype, ["baz"]);
     return Derived2;
 }(Base));
 var Derived3 = (function (_super) {
@@ -53,6 +70,7 @@ var Derived3 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived3.prototype.biz = function () { };
+    __names(Derived3.prototype, ["biz"]);
     return Derived3;
 }(Base));
 function foo(tagName) {
diff --git a/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js b/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js
index 5b69a2dfae1d5..a583aad5cac6e 100644
--- a/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js
+++ b/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js
@@ -20,6 +20,20 @@ class Container {
 }
 
 //// [constraintCheckInGenericBaseTypeReference.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -35,6 +49,7 @@ var Constraint = (function () {
     function Constraint() {
     }
     Constraint.prototype.method = function () { };
+    __names(Constraint.prototype, ["method"]);
     return Constraint;
 }());
 var GenericBase = (function () {
@@ -55,6 +70,7 @@ var TypeArg = (function () {
     TypeArg.prototype.method = function () {
         Container.People.items;
     };
+    __names(TypeArg.prototype, ["method"]);
     return TypeArg;
 }());
 var Container = (function () {
diff --git a/tests/baselines/reference/constructorOverloads1.js b/tests/baselines/reference/constructorOverloads1.js
index 47906974f6ea5..d2bc81a0506a4 100644
--- a/tests/baselines/reference/constructorOverloads1.js
+++ b/tests/baselines/reference/constructorOverloads1.js
@@ -22,11 +22,26 @@ f1.bar2();
 
 
 //// [constructorOverloads1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo(x) {
     }
     Foo.prototype.bar1 = function () { };
     Foo.prototype.bar2 = function () { };
+    __names(Foo.prototype, ["bar1", "bar2"]);
     return Foo;
 }());
 var f1 = new Foo("hey");
diff --git a/tests/baselines/reference/constructorOverloads2.js b/tests/baselines/reference/constructorOverloads2.js
index 291ea54573393..482af5b193487 100644
--- a/tests/baselines/reference/constructorOverloads2.js
+++ b/tests/baselines/reference/constructorOverloads2.js
@@ -26,6 +26,20 @@ f1.bar1();
 
 
 //// [constructorOverloads2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -40,6 +54,7 @@ var FooBase = (function () {
     function FooBase(x) {
     }
     FooBase.prototype.bar1 = function () { };
+    __names(FooBase.prototype, ["bar1"]);
     return FooBase;
 }());
 var Foo = (function (_super) {
@@ -48,6 +63,7 @@ var Foo = (function (_super) {
         return _super.call(this, x) || this;
     }
     Foo.prototype.bar1 = function () { };
+    __names(Foo.prototype, ["bar1"]);
     return Foo;
 }(FooBase));
 var f1 = new Foo("hey");
diff --git a/tests/baselines/reference/constructorOverloads3.js b/tests/baselines/reference/constructorOverloads3.js
index 94b29ad89ab01..36dbd7bfae5b5 100644
--- a/tests/baselines/reference/constructorOverloads3.js
+++ b/tests/baselines/reference/constructorOverloads3.js
@@ -33,6 +33,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function (_super) {
     __extends(Foo, _super);
     function Foo(x, y) {
@@ -40,6 +54,7 @@ var Foo = (function (_super) {
         return _this;
     }
     Foo.prototype.bar1 = function () { };
+    __names(Foo.prototype, ["bar1"]);
     return Foo;
 }(FooBase));
 var f1 = new Foo("hey");
diff --git a/tests/baselines/reference/constructorReturnsInvalidType.js b/tests/baselines/reference/constructorReturnsInvalidType.js
index 82c5cc4a76095..0f6b1637482e6 100644
--- a/tests/baselines/reference/constructorReturnsInvalidType.js
+++ b/tests/baselines/reference/constructorReturnsInvalidType.js
@@ -10,11 +10,26 @@ var x = new X();
 
 
 //// [constructorReturnsInvalidType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var X = (function () {
     function X() {
         return 1;
     }
     X.prototype.foo = function () { };
+    __names(X.prototype, ["foo"]);
     return X;
 }());
 var x = new X();
diff --git a/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js b/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js
index 8e9dc6da68831..88c7569c62d60 100644
--- a/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js
+++ b/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js
@@ -280,6 +280,20 @@ TypeScriptAllInOne.Program.Main();
 
 
 //// [constructorWithIncompleteTypeAnnotation.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -334,6 +348,7 @@ var TypeScriptAllInOne;
         Program.prototype["catch"] = function (e) {
             console.log(e);
         };
+        __names(Program.prototype, ["if", "catch"]);
         return Program;
     }());
     TypeScriptAllInOne.Program = Program;
@@ -487,6 +502,7 @@ var BasicFeatures = (function () {
         else
             return 1;
     };
+    __names(BasicFeatures.prototype, ["VARIABLES", "STATEMENTS", "TYPES", "OPERATOR"]);
     return BasicFeatures;
 }());
 var CLASS = (function () {
@@ -510,6 +526,7 @@ var CLASS = (function () {
         else
             return false;
     };
+    __names(CLASS.prototype, ["Member", "Foo"]);
     return CLASS;
 }());
 // todo: use these
@@ -534,6 +551,7 @@ var B = (function (_super) {
     B.prototype.method2 = function () {
         return this.method1(2);
     };
+    __names(B.prototype, ["method2"]);
     return B;
 }(A));
 var Overloading = (function () {
diff --git a/tests/baselines/reference/contextualTypeAppliedToVarArgs.js b/tests/baselines/reference/contextualTypeAppliedToVarArgs.js
index f8b271ba47cf6..6738556dcde99 100644
--- a/tests/baselines/reference/contextualTypeAppliedToVarArgs.js
+++ b/tests/baselines/reference/contextualTypeAppliedToVarArgs.js
@@ -17,6 +17,20 @@ class Foo{
 
 
 //// [contextualTypeAppliedToVarArgs.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function delegate(instance, method, data) {
     return function () { };
 }
@@ -29,5 +43,6 @@ var Foo = (function () {
             var b = args2.node;
         });
     };
+    __names(Foo.prototype, ["Bar"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/contextuallyTypedClassExpressionMethodDeclaration02.js b/tests/baselines/reference/contextuallyTypedClassExpressionMethodDeclaration02.js
index 4f1305053826a..fc32a8fd12296 100644
--- a/tests/baselines/reference/contextuallyTypedClassExpressionMethodDeclaration02.js
+++ b/tests/baselines/reference/contextuallyTypedClassExpressionMethodDeclaration02.js
@@ -50,6 +50,20 @@ function getFoo3(): Foo {
 }
 
 //// [contextuallyTypedClassExpressionMethodDeclaration02.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function getFoo1() {
     return (function () {
         function class_1() {
@@ -60,6 +74,7 @@ function getFoo1() {
         class_1.prototype.method2 = function (arg) {
             arg.strProp = "hello";
         };
+        __names(class_1.prototype, ["method1", "method2"]);
         return class_1;
     }());
 }
diff --git a/tests/baselines/reference/controlFlowSuperPropertyAccess.js b/tests/baselines/reference/controlFlowSuperPropertyAccess.js
index c2f947d56878e..2776eeeee644b 100644
--- a/tests/baselines/reference/controlFlowSuperPropertyAccess.js
+++ b/tests/baselines/reference/controlFlowSuperPropertyAccess.js
@@ -20,6 +20,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var B = (function () {
     function B() {
     }
@@ -33,5 +47,6 @@ var C = (function (_super) {
     C.prototype.body = function () {
         _super.prototype.m && _super.prototype.m.call(this);
     };
+    __names(C.prototype, ["body"]);
     return C;
 }(B));
diff --git a/tests/baselines/reference/crashInresolveReturnStatement.js b/tests/baselines/reference/crashInresolveReturnStatement.js
index be2e38ddf49c0..8607d636331d0 100644
--- a/tests/baselines/reference/crashInresolveReturnStatement.js
+++ b/tests/baselines/reference/crashInresolveReturnStatement.js
@@ -19,12 +19,27 @@ class WITDialogs {
 
 
 //// [crashInresolveReturnStatement.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var WorkItemToolbar = (function () {
     function WorkItemToolbar() {
     }
     WorkItemToolbar.prototype.onToolbarItemClick = function () {
         WITDialogs.createCopyOfWorkItem();
     };
+    __names(WorkItemToolbar.prototype, ["onToolbarItemClick"]);
     return WorkItemToolbar;
 }());
 var CreateCopyOfWorkItemDialog = (function () {
@@ -33,6 +48,7 @@ var CreateCopyOfWorkItemDialog = (function () {
     CreateCopyOfWorkItemDialog.prototype.getDialogResult = function () {
         return null;
     };
+    __names(CreateCopyOfWorkItemDialog.prototype, ["getDialogResult"]);
     return CreateCopyOfWorkItemDialog;
 }());
 function createWorkItemDialog(dialogType) {
diff --git a/tests/baselines/reference/crashIntypeCheckObjectCreationExpression.js b/tests/baselines/reference/crashIntypeCheckObjectCreationExpression.js
index a115e7ab0a3aa..23649d763f64a 100644
--- a/tests/baselines/reference/crashIntypeCheckObjectCreationExpression.js
+++ b/tests/baselines/reference/crashIntypeCheckObjectCreationExpression.js
@@ -9,6 +9,20 @@ export class BuildWorkspaceService {
 
 
 //// [crashIntypeCheckObjectCreationExpression.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -20,6 +34,7 @@ define(["require", "exports"], function (require, exports) {
         };
         BuildWorkspaceService.prototype.injectBuildService = function (service) {
         };
+        __names(BuildWorkspaceService.prototype, ["injectRequestService", "injectBuildService"]);
         return BuildWorkspaceService;
     }());
     exports.BuildWorkspaceService = BuildWorkspaceService;
diff --git a/tests/baselines/reference/crashRegressionTest.js b/tests/baselines/reference/crashRegressionTest.js
index 22efbf3fba4ab..17d491f70b049 100644
--- a/tests/baselines/reference/crashRegressionTest.js
+++ b/tests/baselines/reference/crashRegressionTest.js
@@ -26,6 +26,20 @@ module MsPortal.Util.TemplateEngine {
 
 
 //// [crashRegressionTest.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var MsPortal;
 (function (MsPortal) {
     var Util;
@@ -40,6 +54,7 @@ var MsPortal;
                 StringTemplate.prototype.text = function (value) {
                     this._templateStorage.templateSources[this._name] = value;
                 };
+                __names(StringTemplate.prototype, ["text"]);
                 return StringTemplate;
             }());
             var TemplateStorage = (function () {
diff --git a/tests/baselines/reference/declFileForClassWithMultipleBaseClasses.js b/tests/baselines/reference/declFileForClassWithMultipleBaseClasses.js
index a1d9f87d48358..f7b503b249fe0 100644
--- a/tests/baselines/reference/declFileForClassWithMultipleBaseClasses.js
+++ b/tests/baselines/reference/declFileForClassWithMultipleBaseClasses.js
@@ -27,16 +27,32 @@ interface I extends A, B {
 }
 
 //// [declFileForClassWithMultipleBaseClasses.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.bar = function () { };
+    __names(B.prototype, ["bar"]);
     return B;
 }());
 var D = (function () {
@@ -46,6 +62,7 @@ var D = (function () {
     D.prototype.bat = function () { };
     D.prototype.foo = function () { };
     D.prototype.bar = function () { };
+    __names(D.prototype, ["baz", "bat", "foo", "bar"]);
     return D;
 }());
 
diff --git a/tests/baselines/reference/declFileForClassWithPrivateOverloadedFunction.js b/tests/baselines/reference/declFileForClassWithPrivateOverloadedFunction.js
index cff015a8b29d0..9bc132115ab65 100644
--- a/tests/baselines/reference/declFileForClassWithPrivateOverloadedFunction.js
+++ b/tests/baselines/reference/declFileForClassWithPrivateOverloadedFunction.js
@@ -6,10 +6,25 @@ class C {
 }
 
 //// [declFileForClassWithPrivateOverloadedFunction.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 
diff --git a/tests/baselines/reference/declFileForTypeParameters.js b/tests/baselines/reference/declFileForTypeParameters.js
index 4000e6301eb68..01c3b75bce6c2 100644
--- a/tests/baselines/reference/declFileForTypeParameters.js
+++ b/tests/baselines/reference/declFileForTypeParameters.js
@@ -7,12 +7,27 @@ class C<T> {
 }
 
 //// [declFileForTypeParameters.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (a) {
         return this.x;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 
diff --git a/tests/baselines/reference/declFileMethods.js b/tests/baselines/reference/declFileMethods.js
index cc6d796e5cfc8..ad57603843b18 100644
--- a/tests/baselines/reference/declFileMethods.js
+++ b/tests/baselines/reference/declFileMethods.js
@@ -191,6 +191,20 @@ interface I2 {
 
 //// [declFileMethods_0.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 var c1 = (function () {
     function c1() {
@@ -271,10 +285,25 @@ var c1 = (function () {
     c1.privateStaticFooWithOverloads = function (a) {
         return a;
     };
+    __names(c1.prototype, ["foo", "fooWithParameters", "fooWithRestParameters", "fooWithOverloads", "privateFoo", "privateFooWithParameters", "privateFooWithRestParameters", "privateFooWithOverloads"]);
     return c1;
 }());
 exports.c1 = c1;
 //// [declFileMethods_1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var c2 = (function () {
     function c2() {
     }
@@ -354,6 +383,7 @@ var c2 = (function () {
     c2.privateStaticFooWithOverloads = function (a) {
         return a;
     };
+    __names(c2.prototype, ["foo", "fooWithParameters", "fooWithRestParameters", "fooWithOverloads", "privateFoo", "privateFooWithParameters", "privateFooWithRestParameters", "privateFooWithOverloads"]);
     return c2;
 }());
 
diff --git a/tests/baselines/reference/declFilePrivateMethodOverloads.js b/tests/baselines/reference/declFilePrivateMethodOverloads.js
index f2203d8d770f4..d33fd007cf6ed 100644
--- a/tests/baselines/reference/declFilePrivateMethodOverloads.js
+++ b/tests/baselines/reference/declFilePrivateMethodOverloads.js
@@ -23,6 +23,20 @@ declare class c2 {
 }
 
 //// [declFilePrivateMethodOverloads.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var c1 = (function () {
     function c1() {
     }
@@ -32,6 +46,7 @@ var c1 = (function () {
     c1.prototype.overloadWithArityDifference = function (context) {
         // Function here
     };
+    __names(c1.prototype, ["_forEachBindingContext", "overloadWithArityDifference"]);
     return c1;
 }());
 
diff --git a/tests/baselines/reference/declInput-2.js b/tests/baselines/reference/declInput-2.js
index eece6082356b2..7682e2e040562 100644
--- a/tests/baselines/reference/declInput-2.js
+++ b/tests/baselines/reference/declInput-2.js
@@ -22,6 +22,20 @@ module M {
 }
 
 //// [declInput-2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var C = (function () {
@@ -44,6 +58,7 @@ var M;
         D.prototype.m26 = function (i) { };
         D.prototype.m262 = function (i) { };
         D.prototype.m3 = function () { return new C(); };
+        __names(D.prototype, ["m232", "m242", "m252", "m26", "m262", "m3"]);
         return D;
     }());
     M.D = D;
diff --git a/tests/baselines/reference/declInput.js b/tests/baselines/reference/declInput.js
index 1f29093d0a848..b5de6f0b988ed 100644
--- a/tests/baselines/reference/declInput.js
+++ b/tests/baselines/reference/declInput.js
@@ -11,6 +11,20 @@ class bar {
 
 
 //// [declInput.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var bar = (function () {
     function bar() {
     }
@@ -22,6 +36,7 @@ var bar = (function () {
         if (z === void 0) { z = ''; }
         x++;
     };
+    __names(bar.prototype, ["f", "g", "h"]);
     return bar;
 }());
 
diff --git a/tests/baselines/reference/declInput3.js b/tests/baselines/reference/declInput3.js
index 292023270aec6..409becec7b5d8 100644
--- a/tests/baselines/reference/declInput3.js
+++ b/tests/baselines/reference/declInput3.js
@@ -11,6 +11,20 @@ class bar {
 
 
 //// [declInput3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var bar = (function () {
     function bar() {
     }
@@ -22,6 +36,7 @@ var bar = (function () {
         if (z === void 0) { z = ''; }
         x++;
     };
+    __names(bar.prototype, ["f", "g", "h"]);
     return bar;
 }());
 
diff --git a/tests/baselines/reference/declInput4.js b/tests/baselines/reference/declInput4.js
index ec57bfaf3e840..a7e2e53dcbd14 100644
--- a/tests/baselines/reference/declInput4.js
+++ b/tests/baselines/reference/declInput4.js
@@ -16,6 +16,20 @@ module M {
 }
 
 //// [declInput4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var C = (function () {
@@ -35,6 +49,7 @@ var M;
         D.prototype.m232 = function () { return null; };
         D.prototype.m242 = function () { return null; };
         D.prototype.m26 = function (i) { };
+        __names(D.prototype, ["m232", "m242", "m26"]);
         return D;
     }());
     M.D = D;
diff --git a/tests/baselines/reference/declarationEmitClassMemberNameConflict.js b/tests/baselines/reference/declarationEmitClassMemberNameConflict.js
index 200ca70d79f47..a40f4bf5a584f 100644
--- a/tests/baselines/reference/declarationEmitClassMemberNameConflict.js
+++ b/tests/baselines/reference/declarationEmitClassMemberNameConflict.js
@@ -37,6 +37,20 @@ export class C4 {
 
 //// [declarationEmitClassMemberNameConflict.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 var C1 = (function () {
     function C1() {
@@ -46,6 +60,7 @@ var C1 = (function () {
         return function (t) {
         };
     };
+    __names(C1.prototype, ["C1", "bar"]);
     return C1;
 }());
 exports.C1 = C1;
@@ -56,6 +71,7 @@ var C2 = (function () {
         return function (t) {
         };
     };
+    __names(C2.prototype, ["bar"]);
     return C2;
 }());
 exports.C2 = C2;
@@ -72,6 +88,7 @@ var C3 = (function () {
         return function (t) {
         };
     };
+    __names(C3.prototype, ["bar"]);
     return C3;
 }());
 exports.C3 = C3;
@@ -88,6 +105,7 @@ var C4 = (function () {
         return function (t) {
         };
     };
+    __names(C4.prototype, ["bar"]);
     return C4;
 }());
 exports.C4 = C4;
diff --git a/tests/baselines/reference/declarationEmitProtectedMembers.js b/tests/baselines/reference/declarationEmitProtectedMembers.js
index a31d74fbbb1a5..6158ff50ca14e 100644
--- a/tests/baselines/reference/declarationEmitProtectedMembers.js
+++ b/tests/baselines/reference/declarationEmitProtectedMembers.js
@@ -50,6 +50,20 @@ class C4 {
 }
 
 //// [declarationEmitProtectedMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -86,6 +100,7 @@ var C1 = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C1.prototype, ["f"]);
     return C1;
 }());
 // Derived class overriding protected members
@@ -100,6 +115,7 @@ var C2 = (function (_super) {
     C2.sf = function () {
         return _super.sf.call(this) + this.sx;
     };
+    __names(C2.prototype, ["f"]);
     return C2;
 }(C1));
 // Derived class making protected members public
@@ -119,6 +135,7 @@ var C3 = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(C3.prototype, ["f"]);
     return C3;
 }(C2));
 // Protected properties in constructors
diff --git a/tests/baselines/reference/declarationEmitThisPredicates01.js b/tests/baselines/reference/declarationEmitThisPredicates01.js
index 70ed3147a9e06..bc6aab26f7e06 100644
--- a/tests/baselines/reference/declarationEmitThisPredicates01.js
+++ b/tests/baselines/reference/declarationEmitThisPredicates01.js
@@ -10,6 +10,20 @@ export class D extends C {
 
 //// [declarationEmitThisPredicates01.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -27,6 +41,7 @@ var C = (function () {
     C.prototype.m = function () {
         return this instanceof D;
     };
+    __names(C.prototype, ["m"]);
     return C;
 }());
 exports.C = C;
diff --git a/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js b/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js
index e7c4c9998b914..d398c181585d3 100644
--- a/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js
+++ b/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js
@@ -10,6 +10,20 @@ class D extends C {
 
 //// [declarationEmitThisPredicatesWithPrivateName01.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -27,6 +41,7 @@ var C = (function () {
     C.prototype.m = function () {
         return this instanceof D;
     };
+    __names(C.prototype, ["m"]);
     return C;
 }());
 exports.C = C;
diff --git a/tests/baselines/reference/declarationFiles.js b/tests/baselines/reference/declarationFiles.js
index 7ee2f344ea1bc..1b706a5c9b705 100644
--- a/tests/baselines/reference/declarationFiles.js
+++ b/tests/baselines/reference/declarationFiles.js
@@ -48,10 +48,25 @@ class C4 {
 
 
 //// [declarationFiles.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1(x) {
     }
     C1.prototype.f = function (x) { return undefined; };
+    __names(C1.prototype, ["f"]);
     return C1;
 }());
 var C2 = (function () {
@@ -85,5 +100,6 @@ var C4 = (function () {
         var _this = this;
         return function () { return _this; };
     };
+    __names(C4.prototype, ["f1", "f2", "f3", "f4"]);
     return C4;
 }());
diff --git a/tests/baselines/reference/declarationMerging1.js b/tests/baselines/reference/declarationMerging1.js
index 6b863def1c7c5..21cbc0d000560 100644
--- a/tests/baselines/reference/declarationMerging1.js
+++ b/tests/baselines/reference/declarationMerging1.js
@@ -12,10 +12,25 @@ interface A {
 }
 
 //// [file1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.getF = function () { return this._f; };
+    __names(A.prototype, ["getF"]);
     return A;
 }());
 //// [file2.js]
diff --git a/tests/baselines/reference/declarationMerging2.js b/tests/baselines/reference/declarationMerging2.js
index b360d9af3f770..586435bf50378 100644
--- a/tests/baselines/reference/declarationMerging2.js
+++ b/tests/baselines/reference/declarationMerging2.js
@@ -15,6 +15,20 @@ declare module "./a" {
 }
 
 //// [a.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -22,6 +36,7 @@ define(["require", "exports"], function (require, exports) {
         function A() {
         }
         A.prototype.getF = function () { return this._f; };
+        __names(A.prototype, ["getF"]);
         return A;
     }());
     exports.A = A;
diff --git a/tests/baselines/reference/decoratorChecksFunctionBodies.js b/tests/baselines/reference/decoratorChecksFunctionBodies.js
index 562169078af86..df4c2c873ae3a 100644
--- a/tests/baselines/reference/decoratorChecksFunctionBodies.js
+++ b/tests/baselines/reference/decoratorChecksFunctionBodies.js
@@ -15,6 +15,20 @@ class A {
 }
 
 //// [decoratorChecksFunctionBodies.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -29,6 +43,7 @@ var A = (function () {
     }
     A.prototype.m = function () {
     };
+    __names(A.prototype, ["m"]);
     __decorate([
         (function (x, p) {
             var a = 3;
diff --git a/tests/baselines/reference/decoratorMetadata.js b/tests/baselines/reference/decoratorMetadata.js
index 93453ac4cf3c8..ec7d644f7ccf2 100644
--- a/tests/baselines/reference/decoratorMetadata.js
+++ b/tests/baselines/reference/decoratorMetadata.js
@@ -29,6 +29,20 @@ var Service = (function () {
 exports.default = Service;
 //// [component.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -46,6 +60,7 @@ var MyComponent = (function () {
     }
     MyComponent.prototype.method = function (x) {
     };
+    __names(MyComponent.prototype, ["method"]);
     __decorate([
         decorator,
         __metadata("design:type", Function),
diff --git a/tests/baselines/reference/decoratorMetadataForMethodWithNoReturnTypeAnnotation01.js b/tests/baselines/reference/decoratorMetadataForMethodWithNoReturnTypeAnnotation01.js
index 9e8b4d5278ee7..a237a5942418b 100644
--- a/tests/baselines/reference/decoratorMetadataForMethodWithNoReturnTypeAnnotation01.js
+++ b/tests/baselines/reference/decoratorMetadataForMethodWithNoReturnTypeAnnotation01.js
@@ -19,6 +19,7 @@ var MyClass = (function () {
     }
     MyClass.prototype.doSomething = function () {
     };
+    __names(MyClass.prototype, ["doSomething"]);
     __decorate([
         decorator,
         __metadata("design:type", Function),
diff --git a/tests/baselines/reference/decoratorMetadataRestParameterWithImportedType.js b/tests/baselines/reference/decoratorMetadataRestParameterWithImportedType.js
index f85bb4767210e..1bf8673e1c403 100644
--- a/tests/baselines/reference/decoratorMetadataRestParameterWithImportedType.js
+++ b/tests/baselines/reference/decoratorMetadataRestParameterWithImportedType.js
@@ -68,6 +68,20 @@ var SomeClass2 = (function () {
 exports.SomeClass2 = SomeClass2;
 //// [main.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -100,6 +114,7 @@ var ClassA = (function () {
             args[_i] = arguments[_i];
         }
     };
+    __names(ClassA.prototype, ["foo"]);
     __decorate([
         annotation1(),
         __metadata("design:type", Function),
diff --git a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision.js b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision.js
index f59e7f9ec13d2..920cd913584c9 100644
--- a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision.js
+++ b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision.js
@@ -31,6 +31,7 @@ var db = (function () {
     }
     db.prototype.doSomething = function () {
     };
+    __names(db.prototype, ["doSomething"]);
     return db;
 }());
 exports.db = db;
diff --git a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision2.js b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision2.js
index b3a5cded57190..3f8c82d002de4 100644
--- a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision2.js
+++ b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision2.js
@@ -31,6 +31,7 @@ var db = (function () {
     }
     db.prototype.doSomething = function () {
     };
+    __names(db.prototype, ["doSomething"]);
     return db;
 }());
 exports.db = db;
diff --git a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision3.js b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision3.js
index a3c170b24e678..920be77df3f7c 100644
--- a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision3.js
+++ b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision3.js
@@ -31,6 +31,7 @@ var db = (function () {
     }
     db.prototype.doSomething = function () {
     };
+    __names(db.prototype, ["doSomething"]);
     return db;
 }());
 exports.db = db;
diff --git a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision4.js b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision4.js
index d6ed8bde3eca1..68a03a90f1868 100644
--- a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision4.js
+++ b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision4.js
@@ -31,6 +31,7 @@ var db = (function () {
     }
     db.prototype.doSomething = function () {
     };
+    __names(db.prototype, ["doSomething"]);
     return db;
 }());
 exports.db = db;
diff --git a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision5.js b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision5.js
index a1cc10b7d3d0d..0766dbef36d26 100644
--- a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision5.js
+++ b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision5.js
@@ -31,6 +31,7 @@ var db = (function () {
     }
     db.prototype.doSomething = function () {
     };
+    __names(db.prototype, ["doSomething"]);
     return db;
 }());
 exports.default = db;
diff --git a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision6.js b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision6.js
index 572787b6f20d6..5c099b4b6eca8 100644
--- a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision6.js
+++ b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision6.js
@@ -31,6 +31,7 @@ var db = (function () {
     }
     db.prototype.doSomething = function () {
     };
+    __names(db.prototype, ["doSomething"]);
     return db;
 }());
 exports.default = db;
diff --git a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision7.js b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision7.js
index 6a45f5230bd00..3a948de3dcfdc 100644
--- a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision7.js
+++ b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision7.js
@@ -31,6 +31,7 @@ var db = (function () {
     }
     db.prototype.doSomething = function () {
     };
+    __names(db.prototype, ["doSomething"]);
     return db;
 }());
 exports.default = db;
diff --git a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision8.js b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision8.js
index 6efdc7f26dbf9..0aaf2da887ae0 100644
--- a/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision8.js
+++ b/tests/baselines/reference/decoratorMetadataWithImportDeclarationNameCollision8.js
@@ -31,6 +31,7 @@ var db = (function () {
     }
     db.prototype.doSomething = function () {
     };
+    __names(db.prototype, ["doSomething"]);
     return db;
 }());
 exports.db = db;
diff --git a/tests/baselines/reference/decoratorOnClass9.js b/tests/baselines/reference/decoratorOnClass9.js
index eac4dcf690af4..a3146727a3479 100644
--- a/tests/baselines/reference/decoratorOnClass9.js
+++ b/tests/baselines/reference/decoratorOnClass9.js
@@ -24,6 +24,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -45,6 +59,7 @@ var B = (function (_super) {
     B.prototype.m = function () {
         return B_1.x;
     };
+    __names(B.prototype, ["m"]);
     B.x = 1;
     B.y = B_1.x;
     B = B_1 = __decorate([
diff --git a/tests/baselines/reference/decoratorOnClassMethod1.js b/tests/baselines/reference/decoratorOnClassMethod1.js
index ef029b845431b..61c37558a81f7 100644
--- a/tests/baselines/reference/decoratorOnClassMethod1.js
+++ b/tests/baselines/reference/decoratorOnClassMethod1.js
@@ -6,6 +6,20 @@ class C {
 }
 
 //// [decoratorOnClassMethod1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -16,6 +30,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     __decorate([
         dec
     ], C.prototype, "method", null);
diff --git a/tests/baselines/reference/decoratorOnClassMethod10.js b/tests/baselines/reference/decoratorOnClassMethod10.js
index f90251d619694..550ec8e67bbb9 100644
--- a/tests/baselines/reference/decoratorOnClassMethod10.js
+++ b/tests/baselines/reference/decoratorOnClassMethod10.js
@@ -6,6 +6,20 @@ class C {
 }
 
 //// [decoratorOnClassMethod10.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -16,6 +30,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     __decorate([
         dec
     ], C.prototype, "method", null);
diff --git a/tests/baselines/reference/decoratorOnClassMethod11.js b/tests/baselines/reference/decoratorOnClassMethod11.js
index f1589a39286fa..4f3fd9d1ea9b7 100644
--- a/tests/baselines/reference/decoratorOnClassMethod11.js
+++ b/tests/baselines/reference/decoratorOnClassMethod11.js
@@ -9,6 +9,20 @@ module M {
 }
 
 //// [decoratorOnClassMethod11.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -22,6 +36,7 @@ var M;
         }
         C.prototype.decorator = function (target, key) { };
         C.prototype.method = function () { };
+        __names(C.prototype, ["decorator", "method"]);
         __decorate([
             this.decorator
         ], C.prototype, "method", null);
diff --git a/tests/baselines/reference/decoratorOnClassMethod12.js b/tests/baselines/reference/decoratorOnClassMethod12.js
index 089f5961d9ca5..1a3fce78c32a9 100644
--- a/tests/baselines/reference/decoratorOnClassMethod12.js
+++ b/tests/baselines/reference/decoratorOnClassMethod12.js
@@ -10,6 +10,20 @@ module M {
 }
 
 //// [decoratorOnClassMethod12.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -32,6 +46,7 @@ var M;
         function S() {
         }
         S.prototype.decorator = function (target, key) { };
+        __names(S.prototype, ["decorator"]);
         return S;
     }());
     var C = (function (_super) {
@@ -40,6 +55,7 @@ var M;
             return _super !== null && _super.apply(this, arguments) || this;
         }
         C.prototype.method = function () { };
+        __names(C.prototype, ["method"]);
         __decorate([
             _super.decorator
         ], C.prototype, "method", null);
diff --git a/tests/baselines/reference/decoratorOnClassMethod2.js b/tests/baselines/reference/decoratorOnClassMethod2.js
index 5db2922ed7187..78395182d5843 100644
--- a/tests/baselines/reference/decoratorOnClassMethod2.js
+++ b/tests/baselines/reference/decoratorOnClassMethod2.js
@@ -6,6 +6,20 @@ class C {
 }
 
 //// [decoratorOnClassMethod2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -16,6 +30,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     __decorate([
         dec
     ], C.prototype, "method", null);
diff --git a/tests/baselines/reference/decoratorOnClassMethod3.js b/tests/baselines/reference/decoratorOnClassMethod3.js
index 30f527368f28b..d692b49453849 100644
--- a/tests/baselines/reference/decoratorOnClassMethod3.js
+++ b/tests/baselines/reference/decoratorOnClassMethod3.js
@@ -6,6 +6,20 @@ class C {
 }
 
 //// [decoratorOnClassMethod3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -16,6 +30,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     __decorate([
         dec
     ], C.prototype, "method", null);
diff --git a/tests/baselines/reference/decoratorOnClassMethod8.js b/tests/baselines/reference/decoratorOnClassMethod8.js
index bf8c06d9b90f6..e3c9382d43bef 100644
--- a/tests/baselines/reference/decoratorOnClassMethod8.js
+++ b/tests/baselines/reference/decoratorOnClassMethod8.js
@@ -6,6 +6,20 @@ class C {
 }
 
 //// [decoratorOnClassMethod8.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -16,6 +30,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     __decorate([
         dec
     ], C.prototype, "method", null);
diff --git a/tests/baselines/reference/decoratorOnClassMethodOverload1.js b/tests/baselines/reference/decoratorOnClassMethodOverload1.js
index cb2e29b3d0003..f904faf6b099a 100644
--- a/tests/baselines/reference/decoratorOnClassMethodOverload1.js
+++ b/tests/baselines/reference/decoratorOnClassMethodOverload1.js
@@ -8,9 +8,24 @@ class C {
 }
 
 //// [decoratorOnClassMethodOverload1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     return C;
 }());
diff --git a/tests/baselines/reference/decoratorOnClassMethodOverload2.js b/tests/baselines/reference/decoratorOnClassMethodOverload2.js
index eafa5da711097..ccc1c4bf8b3bc 100644
--- a/tests/baselines/reference/decoratorOnClassMethodOverload2.js
+++ b/tests/baselines/reference/decoratorOnClassMethodOverload2.js
@@ -8,6 +8,20 @@ class C {
 }
 
 //// [decoratorOnClassMethodOverload2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -18,6 +32,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     __decorate([
         dec
     ], C.prototype, "method", null);
diff --git a/tests/baselines/reference/decoratorOnClassMethodParameter1.js b/tests/baselines/reference/decoratorOnClassMethodParameter1.js
index efb1e4abff2cb..d75b3d6d01d3f 100644
--- a/tests/baselines/reference/decoratorOnClassMethodParameter1.js
+++ b/tests/baselines/reference/decoratorOnClassMethodParameter1.js
@@ -6,6 +6,20 @@ class C {
 }
 
 //// [decoratorOnClassMethodParameter1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -19,6 +33,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.method = function (p) { };
+    __names(C.prototype, ["method"]);
     __decorate([
         __param(0, dec)
     ], C.prototype, "method", null);
diff --git a/tests/baselines/reference/decoratorWithUnderscoreMethod.js b/tests/baselines/reference/decoratorWithUnderscoreMethod.js
index ace73ccf5953e..e4268118f84e8 100644
--- a/tests/baselines/reference/decoratorWithUnderscoreMethod.js
+++ b/tests/baselines/reference/decoratorWithUnderscoreMethod.js
@@ -29,6 +29,7 @@ var A = (function () {
     A.prototype.__foo = function (bar) {
         // do something with bar
     };
+    __names(A.prototype, ["__foo"]);
     __decorate([
         dec()
     ], A.prototype, "__foo");
diff --git a/tests/baselines/reference/defaultArgsInOverloads.js b/tests/baselines/reference/defaultArgsInOverloads.js
index 1b4c65db6533b..e802062b17b5e 100644
--- a/tests/baselines/reference/defaultArgsInOverloads.js
+++ b/tests/baselines/reference/defaultArgsInOverloads.js
@@ -20,6 +20,20 @@ interface I {
 var f: (a = 3) => number;
 
 //// [defaultArgsInOverloads.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function fun(a) {
     if (a === void 0) { a = null; }
 }
@@ -32,6 +46,7 @@ var C = (function () {
     C.fun = function (a) {
         if (a === void 0) { a = null; }
     };
+    __names(C.prototype, ["fun"]);
     return C;
 }());
 var f;
diff --git a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js
index d41542e90c0f4..b8fcab9401687 100644
--- a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js
+++ b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js
@@ -34,6 +34,20 @@ class D extends C {
 }
 
 //// [derivedClassConstructorWithExplicitReturns01.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -55,6 +69,7 @@ var C = (function () {
         };
     }
     C.prototype.foo = function () { return "this never gets used."; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function (_super) {
diff --git a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js.map b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js.map
index 4075fca49c9ed..1c2631732bb94 100644
--- a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js.map
+++ b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js.map
@@ -1,2 +1,2 @@
 //// [derivedClassConstructorWithExplicitReturns01.js.map]
-{"version":3,"file":"derivedClassConstructorWithExplicitReturns01.js","sourceRoot":"","sources":["derivedClassConstructorWithExplicitReturns01.ts"],"names":[],"mappings":";;;;;;;;;;AAAA;IAKI,WAAY,KAAa;QAJzB,UAAK,GAAG,EAAE,CAAC;QAKP,MAAM,CAAC;YACH,KAAK,EAAE,KAAK;YACZ,GAAG;gBACC,MAAM,CAAC,8BAA8B,CAAC;YAC1C,CAAC;SACJ,CAAA;IACL,CAAC;IATD,eAAG,GAAH,cAAQ,MAAM,CAAC,uBAAuB,CAAC,CAAC,CAAC;IAU7C,QAAC;AAAD,CAAC,AAbD,IAaC;AAED;IAAgB,qBAAC;IAGb,WAAY,CAAO;QAAP,kBAAA,EAAA,OAAO;QAAnB,YACI,kBAAM,CAAC,CAAC,SAYX;QAfD,WAAK,GAAG,cAAM,OAAA,KAAI,EAAJ,CAAI,CAAC;QAKf,EAAE,CAAC,CAAC,IAAI,CAAC,MAAM,EAAE,GAAG,GAAG,CAAC,CAAC,CAAC;YACtB,UAAU,CAAA;YACV,MAAM,CAAC;gBACH,KAAK,EAAE,CAAC;gBACR,KAAK,EAAE,cAAM,OAAA,KAAI,EAAJ,CAAI;gBACjB,GAAG,gBAAK,MAAM,CAAC,cAAc,CAAA,CAAC,CAAC;aAClC,CAAC;QACN,CAAC;QACD,IAAI;YACA,MAAM,CAAC,IAAI,CAAC;IACpB,CAAC;IACL,QAAC;AAAD,CAAC,AAjBD,CAAgB,CAAC,GAiBhB"}
\ No newline at end of file
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\ No newline at end of file
diff --git a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt
index 76da9ac8a5a99..12d005b9a5fa7 100644
--- a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt
+++ b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt
@@ -8,6 +8,20 @@ sources: derivedClassConstructorWithExplicitReturns01.ts
 emittedFile:tests/cases/compiler/derivedClassConstructorWithExplicitReturns01.js
 sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>var __extends = (this && this.__extends) || (function () {
 >>>    var extendStatics = Object.setPrototypeOf ||
 >>>        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -22,7 +36,7 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 1 >
 2 >^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
-1 >Emitted(11, 1) Source(1, 1) + SourceIndex(0)
+1 >Emitted(25, 1) Source(1, 1) + SourceIndex(0)
 ---
 >>>    function C(value) {
 1->^^^^
@@ -37,9 +51,9 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
   >    
 2 >    constructor(
 3 >               value: number
-1->Emitted(12, 5) Source(6, 5) + SourceIndex(0)
-2 >Emitted(12, 16) Source(6, 17) + SourceIndex(0)
-3 >Emitted(12, 21) Source(6, 30) + SourceIndex(0)
+1->Emitted(26, 5) Source(6, 5) + SourceIndex(0)
+2 >Emitted(26, 16) Source(6, 17) + SourceIndex(0)
+3 >Emitted(26, 21) Source(6, 30) + SourceIndex(0)
 ---
 >>>        this.cProp = 10;
 1->^^^^^^^^
@@ -52,11 +66,11 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 3 >                   = 
 4 >                     10
 5 >                       ;
-1->Emitted(13, 9) Source(2, 5) + SourceIndex(0)
-2 >Emitted(13, 19) Source(2, 10) + SourceIndex(0)
-3 >Emitted(13, 22) Source(2, 13) + SourceIndex(0)
-4 >Emitted(13, 24) Source(2, 15) + SourceIndex(0)
-5 >Emitted(13, 25) Source(2, 16) + SourceIndex(0)
+1->Emitted(27, 9) Source(2, 5) + SourceIndex(0)
+2 >Emitted(27, 19) Source(2, 10) + SourceIndex(0)
+3 >Emitted(27, 22) Source(2, 13) + SourceIndex(0)
+4 >Emitted(27, 24) Source(2, 15) + SourceIndex(0)
+5 >Emitted(27, 25) Source(2, 16) + SourceIndex(0)
 ---
 >>>        return {
 1 >^^^^^^^^
@@ -71,9 +85,9 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
   >        
 2 >        return
 3 >               
-1 >Emitted(14, 9) Source(7, 9) + SourceIndex(0)
-2 >Emitted(14, 15) Source(7, 15) + SourceIndex(0)
-3 >Emitted(14, 16) Source(7, 16) + SourceIndex(0)
+1 >Emitted(28, 9) Source(7, 9) + SourceIndex(0)
+2 >Emitted(28, 15) Source(7, 15) + SourceIndex(0)
+3 >Emitted(28, 16) Source(7, 16) + SourceIndex(0)
 ---
 >>>            cProp: value,
 1->^^^^^^^^^^^^
@@ -86,10 +100,10 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 2 >            cProp
 3 >                 : 
 4 >                   value
-1->Emitted(15, 13) Source(8, 13) + SourceIndex(0)
-2 >Emitted(15, 18) Source(8, 18) + SourceIndex(0)
-3 >Emitted(15, 20) Source(8, 20) + SourceIndex(0)
-4 >Emitted(15, 25) Source(8, 25) + SourceIndex(0)
+1->Emitted(29, 13) Source(8, 13) + SourceIndex(0)
+2 >Emitted(29, 18) Source(8, 18) + SourceIndex(0)
+3 >Emitted(29, 20) Source(8, 20) + SourceIndex(0)
+4 >Emitted(29, 25) Source(8, 25) + SourceIndex(0)
 ---
 >>>            foo: function () {
 1->^^^^^^^^^^^^
@@ -98,8 +112,8 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 1->,
   >            
 2 >            foo
-1->Emitted(16, 13) Source(9, 13) + SourceIndex(0)
-2 >Emitted(16, 16) Source(9, 16) + SourceIndex(0)
+1->Emitted(30, 13) Source(9, 13) + SourceIndex(0)
+2 >Emitted(30, 16) Source(9, 16) + SourceIndex(0)
 ---
 >>>                return "well this looks kinda C-ish.";
 1->^^^^^^^^^^^^^^^^
@@ -113,11 +127,11 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 3 >                       
 4 >                       "well this looks kinda C-ish."
 5 >                                                     ;
-1->Emitted(17, 17) Source(10, 17) + SourceIndex(0)
-2 >Emitted(17, 23) Source(10, 23) + SourceIndex(0)
-3 >Emitted(17, 24) Source(10, 24) + SourceIndex(0)
-4 >Emitted(17, 54) Source(10, 54) + SourceIndex(0)
-5 >Emitted(17, 55) Source(10, 55) + SourceIndex(0)
+1->Emitted(31, 17) Source(10, 17) + SourceIndex(0)
+2 >Emitted(31, 23) Source(10, 23) + SourceIndex(0)
+3 >Emitted(31, 24) Source(10, 24) + SourceIndex(0)
+4 >Emitted(31, 54) Source(10, 54) + SourceIndex(0)
+5 >Emitted(31, 55) Source(10, 55) + SourceIndex(0)
 ---
 >>>            }
 1 >^^^^^^^^^^^^
@@ -125,8 +139,8 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 1 >
   >            
 2 >            }
-1 >Emitted(18, 13) Source(11, 13) + SourceIndex(0)
-2 >Emitted(18, 14) Source(11, 14) + SourceIndex(0)
+1 >Emitted(32, 13) Source(11, 13) + SourceIndex(0)
+2 >Emitted(32, 14) Source(11, 14) + SourceIndex(0)
 ---
 >>>        };
 1 >^^^^^^^^^
@@ -134,8 +148,8 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 1 >
   >        }
 2 >         
-1 >Emitted(19, 10) Source(12, 10) + SourceIndex(0)
-2 >Emitted(19, 11) Source(12, 10) + SourceIndex(0)
+1 >Emitted(33, 10) Source(12, 10) + SourceIndex(0)
+2 >Emitted(33, 11) Source(12, 10) + SourceIndex(0)
 ---
 >>>    }
 1 >^^^^
@@ -144,8 +158,8 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 1 >
   >    
 2 >    }
-1 >Emitted(20, 5) Source(13, 5) + SourceIndex(0)
-2 >Emitted(20, 6) Source(13, 6) + SourceIndex(0)
+1 >Emitted(34, 5) Source(13, 5) + SourceIndex(0)
+2 >Emitted(34, 6) Source(13, 6) + SourceIndex(0)
 ---
 >>>    C.prototype.foo = function () { return "this never gets used."; };
 1->^^^^
@@ -168,17 +182,18 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 8 >                                                                  ;
 9 >                                                                    
 10>                                                                    }
-1->Emitted(21, 5) Source(4, 5) + SourceIndex(0)
-2 >Emitted(21, 20) Source(4, 8) + SourceIndex(0)
-3 >Emitted(21, 23) Source(4, 5) + SourceIndex(0)
-4 >Emitted(21, 37) Source(4, 13) + SourceIndex(0)
-5 >Emitted(21, 43) Source(4, 19) + SourceIndex(0)
-6 >Emitted(21, 44) Source(4, 20) + SourceIndex(0)
-7 >Emitted(21, 67) Source(4, 43) + SourceIndex(0)
-8 >Emitted(21, 68) Source(4, 44) + SourceIndex(0)
-9 >Emitted(21, 69) Source(4, 45) + SourceIndex(0)
-10>Emitted(21, 70) Source(4, 46) + SourceIndex(0)
----
+1->Emitted(35, 5) Source(4, 5) + SourceIndex(0)
+2 >Emitted(35, 20) Source(4, 8) + SourceIndex(0)
+3 >Emitted(35, 23) Source(4, 5) + SourceIndex(0)
+4 >Emitted(35, 37) Source(4, 13) + SourceIndex(0)
+5 >Emitted(35, 43) Source(4, 19) + SourceIndex(0)
+6 >Emitted(35, 44) Source(4, 20) + SourceIndex(0)
+7 >Emitted(35, 67) Source(4, 43) + SourceIndex(0)
+8 >Emitted(35, 68) Source(4, 44) + SourceIndex(0)
+9 >Emitted(35, 69) Source(4, 45) + SourceIndex(0)
+10>Emitted(35, 70) Source(4, 46) + SourceIndex(0)
+---
+>>>    __names(C.prototype, ["foo"]);
 >>>    return C;
 1 >^^^^
 2 >    ^^^^^^^^
@@ -194,8 +209,8 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
   >    }
   >
 2 >    }
-1 >Emitted(22, 5) Source(14, 1) + SourceIndex(0)
-2 >Emitted(22, 13) Source(14, 2) + SourceIndex(0)
+1 >Emitted(37, 5) Source(14, 1) + SourceIndex(0)
+2 >Emitted(37, 13) Source(14, 2) + SourceIndex(0)
 ---
 >>>}());
 1 >
@@ -220,10 +235,10 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
   >         }
   >     }
   > }
-1 >Emitted(23, 1) Source(14, 1) + SourceIndex(0)
-2 >Emitted(23, 2) Source(14, 2) + SourceIndex(0)
-3 >Emitted(23, 2) Source(1, 1) + SourceIndex(0)
-4 >Emitted(23, 6) Source(14, 2) + SourceIndex(0)
+1 >Emitted(38, 1) Source(14, 1) + SourceIndex(0)
+2 >Emitted(38, 2) Source(14, 2) + SourceIndex(0)
+3 >Emitted(38, 2) Source(1, 1) + SourceIndex(0)
+4 >Emitted(38, 6) Source(14, 2) + SourceIndex(0)
 ---
 >>>var D = (function (_super) {
 1->
@@ -231,15 +246,15 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 1->
   >
   >
-1->Emitted(24, 1) Source(16, 1) + SourceIndex(0)
+1->Emitted(39, 1) Source(16, 1) + SourceIndex(0)
 ---
 >>>    __extends(D, _super);
 1->^^^^
 2 >    ^^^^^^^^^^^^^^^^^^^^^
 1->class D extends 
 2 >    C
-1->Emitted(25, 5) Source(16, 17) + SourceIndex(0)
-2 >Emitted(25, 26) Source(16, 18) + SourceIndex(0)
+1->Emitted(40, 5) Source(16, 17) + SourceIndex(0)
+2 >Emitted(40, 26) Source(16, 18) + SourceIndex(0)
 ---
 >>>    function D(a) {
 1 >^^^^
@@ -252,9 +267,9 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
   >    
 2 >    constructor(
 3 >               a = 100
-1 >Emitted(26, 5) Source(19, 5) + SourceIndex(0)
-2 >Emitted(26, 16) Source(19, 17) + SourceIndex(0)
-3 >Emitted(26, 17) Source(19, 24) + SourceIndex(0)
+1 >Emitted(41, 5) Source(19, 5) + SourceIndex(0)
+2 >Emitted(41, 16) Source(19, 17) + SourceIndex(0)
+3 >Emitted(41, 17) Source(19, 24) + SourceIndex(0)
 ---
 >>>        if (a === void 0) { a = 100; }
 1->^^^^^^^^
@@ -266,10 +281,10 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 2 >        
 3 >                          
 4 >                            a = 100
-1->Emitted(27, 9) Source(19, 17) + SourceIndex(0)
-2 >Emitted(27, 27) Source(19, 17) + SourceIndex(0)
-3 >Emitted(27, 29) Source(19, 17) + SourceIndex(0)
-4 >Emitted(27, 36) Source(19, 24) + SourceIndex(0)
+1->Emitted(42, 9) Source(19, 17) + SourceIndex(0)
+2 >Emitted(42, 27) Source(19, 17) + SourceIndex(0)
+3 >Emitted(42, 29) Source(19, 17) + SourceIndex(0)
+4 >Emitted(42, 36) Source(19, 24) + SourceIndex(0)
 ---
 >>>        var _this = _super.call(this, a) || this;
 1->^^^^^^^^
@@ -298,12 +313,12 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
   >                                                else
   >                                                    return null;
   >                                            }
-1->Emitted(28, 9) Source(19, 5) + SourceIndex(0)
-2 >Emitted(28, 21) Source(20, 9) + SourceIndex(0)
-3 >Emitted(28, 39) Source(20, 15) + SourceIndex(0)
-4 >Emitted(28, 40) Source(20, 16) + SourceIndex(0)
-5 >Emitted(28, 41) Source(20, 17) + SourceIndex(0)
-6 >Emitted(28, 50) Source(32, 6) + SourceIndex(0)
+1->Emitted(43, 9) Source(19, 5) + SourceIndex(0)
+2 >Emitted(43, 21) Source(20, 9) + SourceIndex(0)
+3 >Emitted(43, 39) Source(20, 15) + SourceIndex(0)
+4 >Emitted(43, 40) Source(20, 16) + SourceIndex(0)
+5 >Emitted(43, 41) Source(20, 17) + SourceIndex(0)
+6 >Emitted(43, 50) Source(32, 6) + SourceIndex(0)
 ---
 >>>        _this.dProp = function () { return _this; };
 1->^^^^^^^^
@@ -324,15 +339,15 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 7 >                                                
 8 >                                                  this
 9 >                                                   ;
-1->Emitted(29, 9) Source(17, 5) + SourceIndex(0)
-2 >Emitted(29, 20) Source(17, 10) + SourceIndex(0)
-3 >Emitted(29, 23) Source(17, 13) + SourceIndex(0)
-4 >Emitted(29, 37) Source(17, 19) + SourceIndex(0)
-5 >Emitted(29, 44) Source(17, 19) + SourceIndex(0)
-6 >Emitted(29, 49) Source(17, 23) + SourceIndex(0)
-7 >Emitted(29, 51) Source(17, 19) + SourceIndex(0)
-8 >Emitted(29, 52) Source(17, 23) + SourceIndex(0)
-9 >Emitted(29, 53) Source(17, 24) + SourceIndex(0)
+1->Emitted(44, 9) Source(17, 5) + SourceIndex(0)
+2 >Emitted(44, 20) Source(17, 10) + SourceIndex(0)
+3 >Emitted(44, 23) Source(17, 13) + SourceIndex(0)
+4 >Emitted(44, 37) Source(17, 19) + SourceIndex(0)
+5 >Emitted(44, 44) Source(17, 19) + SourceIndex(0)
+6 >Emitted(44, 49) Source(17, 23) + SourceIndex(0)
+7 >Emitted(44, 51) Source(17, 19) + SourceIndex(0)
+8 >Emitted(44, 52) Source(17, 23) + SourceIndex(0)
+9 >Emitted(44, 53) Source(17, 24) + SourceIndex(0)
 ---
 >>>        if (Math.random() < 0.5) {
 1 >^^^^^^^^
@@ -366,19 +381,19 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 11>                               )
 12>                                 
 13>                                 {
-1 >Emitted(30, 9) Source(22, 9) + SourceIndex(0)
-2 >Emitted(30, 11) Source(22, 11) + SourceIndex(0)
-3 >Emitted(30, 12) Source(22, 12) + SourceIndex(0)
-4 >Emitted(30, 13) Source(22, 13) + SourceIndex(0)
-5 >Emitted(30, 17) Source(22, 17) + SourceIndex(0)
-6 >Emitted(30, 18) Source(22, 18) + SourceIndex(0)
-7 >Emitted(30, 24) Source(22, 24) + SourceIndex(0)
-8 >Emitted(30, 26) Source(22, 26) + SourceIndex(0)
-9 >Emitted(30, 29) Source(22, 29) + SourceIndex(0)
-10>Emitted(30, 32) Source(22, 32) + SourceIndex(0)
-11>Emitted(30, 33) Source(22, 33) + SourceIndex(0)
-12>Emitted(30, 34) Source(22, 34) + SourceIndex(0)
-13>Emitted(30, 35) Source(22, 35) + SourceIndex(0)
+1 >Emitted(45, 9) Source(22, 9) + SourceIndex(0)
+2 >Emitted(45, 11) Source(22, 11) + SourceIndex(0)
+3 >Emitted(45, 12) Source(22, 12) + SourceIndex(0)
+4 >Emitted(45, 13) Source(22, 13) + SourceIndex(0)
+5 >Emitted(45, 17) Source(22, 17) + SourceIndex(0)
+6 >Emitted(45, 18) Source(22, 18) + SourceIndex(0)
+7 >Emitted(45, 24) Source(22, 24) + SourceIndex(0)
+8 >Emitted(45, 26) Source(22, 26) + SourceIndex(0)
+9 >Emitted(45, 29) Source(22, 29) + SourceIndex(0)
+10>Emitted(45, 32) Source(22, 32) + SourceIndex(0)
+11>Emitted(45, 33) Source(22, 33) + SourceIndex(0)
+12>Emitted(45, 34) Source(22, 34) + SourceIndex(0)
+13>Emitted(45, 35) Source(22, 35) + SourceIndex(0)
 ---
 >>>            "You win!";
 1 >^^^^^^^^^^^^
@@ -388,9 +403,9 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
   >            
 2 >            "You win!"
 3 >                      
-1 >Emitted(31, 13) Source(23, 13) + SourceIndex(0)
-2 >Emitted(31, 23) Source(23, 23) + SourceIndex(0)
-3 >Emitted(31, 24) Source(23, 23) + SourceIndex(0)
+1 >Emitted(46, 13) Source(23, 13) + SourceIndex(0)
+2 >Emitted(46, 23) Source(23, 23) + SourceIndex(0)
+3 >Emitted(46, 24) Source(23, 23) + SourceIndex(0)
 ---
 >>>            return {
 1 >^^^^^^^^^^^^
@@ -401,9 +416,9 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
   >            
 2 >            return
 3 >                   
-1 >Emitted(32, 13) Source(24, 13) + SourceIndex(0)
-2 >Emitted(32, 19) Source(24, 19) + SourceIndex(0)
-3 >Emitted(32, 20) Source(24, 20) + SourceIndex(0)
+1 >Emitted(47, 13) Source(24, 13) + SourceIndex(0)
+2 >Emitted(47, 19) Source(24, 19) + SourceIndex(0)
+3 >Emitted(47, 20) Source(24, 20) + SourceIndex(0)
 ---
 >>>                cProp: 1,
 1->^^^^^^^^^^^^^^^^
@@ -416,10 +431,10 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 2 >                cProp
 3 >                     : 
 4 >                       1
-1->Emitted(33, 17) Source(25, 17) + SourceIndex(0)
-2 >Emitted(33, 22) Source(25, 22) + SourceIndex(0)
-3 >Emitted(33, 24) Source(25, 24) + SourceIndex(0)
-4 >Emitted(33, 25) Source(25, 25) + SourceIndex(0)
+1->Emitted(48, 17) Source(25, 17) + SourceIndex(0)
+2 >Emitted(48, 22) Source(25, 22) + SourceIndex(0)
+3 >Emitted(48, 24) Source(25, 24) + SourceIndex(0)
+4 >Emitted(48, 25) Source(25, 25) + SourceIndex(0)
 ---
 >>>                dProp: function () { return _this; },
 1->^^^^^^^^^^^^^^^^
@@ -440,14 +455,14 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 6 >                                            this
 7 >                                                 
 8 >                                                   this
-1->Emitted(34, 17) Source(26, 17) + SourceIndex(0)
-2 >Emitted(34, 22) Source(26, 22) + SourceIndex(0)
-3 >Emitted(34, 24) Source(26, 24) + SourceIndex(0)
-4 >Emitted(34, 38) Source(26, 30) + SourceIndex(0)
-5 >Emitted(34, 45) Source(26, 30) + SourceIndex(0)
-6 >Emitted(34, 50) Source(26, 34) + SourceIndex(0)
-7 >Emitted(34, 52) Source(26, 30) + SourceIndex(0)
-8 >Emitted(34, 53) Source(26, 34) + SourceIndex(0)
+1->Emitted(49, 17) Source(26, 17) + SourceIndex(0)
+2 >Emitted(49, 22) Source(26, 22) + SourceIndex(0)
+3 >Emitted(49, 24) Source(26, 24) + SourceIndex(0)
+4 >Emitted(49, 38) Source(26, 30) + SourceIndex(0)
+5 >Emitted(49, 45) Source(26, 30) + SourceIndex(0)
+6 >Emitted(49, 50) Source(26, 34) + SourceIndex(0)
+7 >Emitted(49, 52) Source(26, 30) + SourceIndex(0)
+8 >Emitted(49, 53) Source(26, 34) + SourceIndex(0)
 ---
 >>>                foo: function () { return "You win!!!!!"; }
 1->^^^^^^^^^^^^^^^^
@@ -469,15 +484,15 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 7 >                                                        
 8 >                                                          
 9 >                                                          }
-1->Emitted(35, 17) Source(27, 17) + SourceIndex(0)
-2 >Emitted(35, 20) Source(27, 20) + SourceIndex(0)
-3 >Emitted(35, 36) Source(27, 25) + SourceIndex(0)
-4 >Emitted(35, 42) Source(27, 31) + SourceIndex(0)
-5 >Emitted(35, 43) Source(27, 32) + SourceIndex(0)
-6 >Emitted(35, 57) Source(27, 46) + SourceIndex(0)
-7 >Emitted(35, 58) Source(27, 46) + SourceIndex(0)
-8 >Emitted(35, 59) Source(27, 47) + SourceIndex(0)
-9 >Emitted(35, 60) Source(27, 48) + SourceIndex(0)
+1->Emitted(50, 17) Source(27, 17) + SourceIndex(0)
+2 >Emitted(50, 20) Source(27, 20) + SourceIndex(0)
+3 >Emitted(50, 36) Source(27, 25) + SourceIndex(0)
+4 >Emitted(50, 42) Source(27, 31) + SourceIndex(0)
+5 >Emitted(50, 43) Source(27, 32) + SourceIndex(0)
+6 >Emitted(50, 57) Source(27, 46) + SourceIndex(0)
+7 >Emitted(50, 58) Source(27, 46) + SourceIndex(0)
+8 >Emitted(50, 59) Source(27, 47) + SourceIndex(0)
+9 >Emitted(50, 60) Source(27, 48) + SourceIndex(0)
 ---
 >>>            };
 1 >^^^^^^^^^^^^^
@@ -485,8 +500,8 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 1 >
   >            }
 2 >             ;
-1 >Emitted(36, 14) Source(28, 14) + SourceIndex(0)
-2 >Emitted(36, 15) Source(28, 15) + SourceIndex(0)
+1 >Emitted(51, 14) Source(28, 14) + SourceIndex(0)
+2 >Emitted(51, 15) Source(28, 15) + SourceIndex(0)
 ---
 >>>        }
 1 >^^^^^^^^
@@ -495,8 +510,8 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 1 >
   >        
 2 >        }
-1 >Emitted(37, 9) Source(29, 9) + SourceIndex(0)
-2 >Emitted(37, 10) Source(29, 10) + SourceIndex(0)
+1 >Emitted(52, 9) Source(29, 9) + SourceIndex(0)
+2 >Emitted(52, 10) Source(29, 10) + SourceIndex(0)
 ---
 >>>        else
 1->^^^^^^^^
@@ -505,8 +520,8 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 1->
   >        
 2 >        else
-1->Emitted(38, 9) Source(30, 9) + SourceIndex(0)
-2 >Emitted(38, 13) Source(30, 13) + SourceIndex(0)
+1->Emitted(53, 9) Source(30, 9) + SourceIndex(0)
+2 >Emitted(53, 13) Source(30, 13) + SourceIndex(0)
 ---
 >>>            return null;
 1->^^^^^^^^^^^^
@@ -520,11 +535,11 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 3 >                   
 4 >                   null
 5 >                       ;
-1->Emitted(39, 13) Source(31, 13) + SourceIndex(0)
-2 >Emitted(39, 19) Source(31, 19) + SourceIndex(0)
-3 >Emitted(39, 20) Source(31, 20) + SourceIndex(0)
-4 >Emitted(39, 24) Source(31, 24) + SourceIndex(0)
-5 >Emitted(39, 25) Source(31, 25) + SourceIndex(0)
+1->Emitted(54, 13) Source(31, 13) + SourceIndex(0)
+2 >Emitted(54, 19) Source(31, 19) + SourceIndex(0)
+3 >Emitted(54, 20) Source(31, 20) + SourceIndex(0)
+4 >Emitted(54, 24) Source(31, 24) + SourceIndex(0)
+5 >Emitted(54, 25) Source(31, 25) + SourceIndex(0)
 ---
 >>>    }
 1 >^^^^
@@ -533,8 +548,8 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 1 >
   >    
 2 >    }
-1 >Emitted(40, 5) Source(32, 5) + SourceIndex(0)
-2 >Emitted(40, 6) Source(32, 6) + SourceIndex(0)
+1 >Emitted(55, 5) Source(32, 5) + SourceIndex(0)
+2 >Emitted(55, 6) Source(32, 6) + SourceIndex(0)
 ---
 >>>    return D;
 1->^^^^
@@ -542,8 +557,8 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 1->
   >
 2 >    }
-1->Emitted(41, 5) Source(33, 1) + SourceIndex(0)
-2 >Emitted(41, 13) Source(33, 2) + SourceIndex(0)
+1->Emitted(56, 5) Source(33, 1) + SourceIndex(0)
+2 >Emitted(56, 13) Source(33, 2) + SourceIndex(0)
 ---
 >>>}(C));
 1 >
@@ -576,11 +591,11 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
   >               return null;
   >       }
   >   }
-1 >Emitted(42, 1) Source(33, 1) + SourceIndex(0)
-2 >Emitted(42, 2) Source(33, 2) + SourceIndex(0)
-3 >Emitted(42, 2) Source(16, 1) + SourceIndex(0)
-4 >Emitted(42, 3) Source(16, 17) + SourceIndex(0)
-5 >Emitted(42, 4) Source(16, 18) + SourceIndex(0)
-6 >Emitted(42, 7) Source(33, 2) + SourceIndex(0)
+1 >Emitted(57, 1) Source(33, 1) + SourceIndex(0)
+2 >Emitted(57, 2) Source(33, 2) + SourceIndex(0)
+3 >Emitted(57, 2) Source(16, 1) + SourceIndex(0)
+4 >Emitted(57, 3) Source(16, 17) + SourceIndex(0)
+5 >Emitted(57, 4) Source(16, 18) + SourceIndex(0)
+6 >Emitted(57, 7) Source(33, 2) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=derivedClassConstructorWithExplicitReturns01.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js b/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js
index 23a4233d1241c..5fc6f693f2c4f 100644
--- a/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js
+++ b/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js
@@ -25,6 +25,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
@@ -48,5 +62,6 @@ var Derived = (function (_super) {
     Derived.prototype.x = function () {
         return 1;
     };
+    __names(Derived.prototype, ["x"]);
     return Derived;
 }(Base));
diff --git a/tests/baselines/reference/derivedClassIncludesInheritedMembers.js b/tests/baselines/reference/derivedClassIncludesInheritedMembers.js
index 8d2010b3346d9..941eea28ed2f1 100644
--- a/tests/baselines/reference/derivedClassIncludesInheritedMembers.js
+++ b/tests/baselines/reference/derivedClassIncludesInheritedMembers.js
@@ -41,6 +41,20 @@ var r8 = d2[1];
 
 
 //// [derivedClassIncludesInheritedMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -68,6 +82,7 @@ var Base = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Base.prototype, ["b"]);
     return Base;
 }());
 var Derived = (function (_super) {
diff --git a/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js b/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js
index a7c35a96ac385..e9b0a050bee05 100644
--- a/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js
+++ b/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js
@@ -16,6 +16,20 @@ class DerivedClass extends BaseClass {
 new DerivedClass();
 
 //// [derivedClassOverridesPrivateFunction1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -32,6 +46,7 @@ var BaseClass = (function () {
     }
     BaseClass.prototype._init = function () {
     };
+    __names(BaseClass.prototype, ["_init"]);
     return BaseClass;
 }());
 var DerivedClass = (function (_super) {
@@ -41,6 +56,7 @@ var DerivedClass = (function (_super) {
     }
     DerivedClass.prototype._init = function () {
     };
+    __names(DerivedClass.prototype, ["_init"]);
     return DerivedClass;
 }(BaseClass));
 new DerivedClass();
diff --git a/tests/baselines/reference/derivedClassOverridesProtectedMembers.js b/tests/baselines/reference/derivedClassOverridesProtectedMembers.js
index 7369354ffd96d..afe13ab98b389 100644
--- a/tests/baselines/reference/derivedClassOverridesProtectedMembers.js
+++ b/tests/baselines/reference/derivedClassOverridesProtectedMembers.js
@@ -36,6 +36,20 @@ class Derived extends Base {
 
 
 //// [derivedClassOverridesProtectedMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -65,6 +79,7 @@ var Base = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Base.prototype, ["b"]);
     return Base;
 }());
 var Derived = (function (_super) {
@@ -86,5 +101,6 @@ var Derived = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(Derived.prototype, ["b"]);
     return Derived;
 }(Base));
diff --git a/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js b/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js
index 6eef011e0f430..79642066777a5 100644
--- a/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js
+++ b/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js
@@ -64,6 +64,20 @@ var r8 = d2[1];
 
 
 //// [derivedClassOverridesProtectedMembers2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -93,6 +107,7 @@ var Base = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Base.prototype, ["b"]);
     return Base;
 }());
 // Increase visibility of all protected members to public
@@ -115,6 +130,7 @@ var Derived = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(Derived.prototype, ["b"]);
     return Derived;
 }(Base));
 var d = new Derived(y);
diff --git a/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js b/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js
index c1fcf54d66358..e0d58d6683746 100644
--- a/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js
+++ b/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js
@@ -71,6 +71,20 @@ class Derived10 extends Base {
 }
 
 //// [derivedClassOverridesProtectedMembers3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -100,6 +114,7 @@ var Base = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Base.prototype, ["b"]);
     return Base;
 }());
 // Errors
@@ -117,6 +132,7 @@ var Derived2 = (function (_super) {
         return _super.call(this, a) || this;
     }
     Derived2.prototype.b = function (a) { };
+    __names(Derived2.prototype, ["b"]);
     return Derived2;
 }(Base));
 var Derived3 = (function (_super) {
diff --git a/tests/baselines/reference/derivedClassOverridesPublicMembers.js b/tests/baselines/reference/derivedClassOverridesPublicMembers.js
index af9a013a3d829..234e35958ce5c 100644
--- a/tests/baselines/reference/derivedClassOverridesPublicMembers.js
+++ b/tests/baselines/reference/derivedClassOverridesPublicMembers.js
@@ -63,6 +63,20 @@ var r8 = d2[1];
 
 
 //// [derivedClassOverridesPublicMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -92,6 +106,7 @@ var Base = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Base.prototype, ["b"]);
     return Base;
 }());
 var Derived = (function (_super) {
@@ -113,6 +128,7 @@ var Derived = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(Derived.prototype, ["b"]);
     return Derived;
 }(Base));
 var d = new Derived(y);
diff --git a/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js b/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js
index 3ca0d13e6713e..fc152c0b7c659 100644
--- a/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js
+++ b/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js
@@ -43,6 +43,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
@@ -83,6 +97,7 @@ var Derived = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(Derived.prototype, ["b"]);
     Derived.a = _this = _super.call(this) || this;
     return Derived;
 }(Base));
diff --git a/tests/baselines/reference/derivedClassTransitivity.js b/tests/baselines/reference/derivedClassTransitivity.js
index 83a750c707d12..33aa61db48174 100644
--- a/tests/baselines/reference/derivedClassTransitivity.js
+++ b/tests/baselines/reference/derivedClassTransitivity.js
@@ -22,6 +22,20 @@ var r2 = e.foo('');
 
 //// [derivedClassTransitivity.js]
 // subclassing is not transitive when you can remove required parameters and add optional parameters
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -36,6 +50,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function (_super) {
@@ -44,6 +59,7 @@ var D = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     D.prototype.foo = function () { }; // ok to drop parameters
+    __names(D.prototype, ["foo"]);
     return D;
 }(C));
 var E = (function (_super) {
@@ -52,6 +68,7 @@ var E = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     E.prototype.foo = function (x) { }; // ok to add optional parameters
+    __names(E.prototype, ["foo"]);
     return E;
 }(D));
 var c;
diff --git a/tests/baselines/reference/derivedClassTransitivity2.js b/tests/baselines/reference/derivedClassTransitivity2.js
index 7cd7d73d60418..39a9d91866564 100644
--- a/tests/baselines/reference/derivedClassTransitivity2.js
+++ b/tests/baselines/reference/derivedClassTransitivity2.js
@@ -22,6 +22,20 @@ var r2 = e.foo(1, '');
 
 //// [derivedClassTransitivity2.js]
 // subclassing is not transitive when you can remove required parameters and add optional parameters
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -36,6 +50,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x, y) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function (_super) {
@@ -44,6 +59,7 @@ var D = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     D.prototype.foo = function (x) { }; // ok to drop parameters
+    __names(D.prototype, ["foo"]);
     return D;
 }(C));
 var E = (function (_super) {
@@ -52,6 +68,7 @@ var E = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     E.prototype.foo = function (x, y) { }; // ok to add optional parameters
+    __names(E.prototype, ["foo"]);
     return E;
 }(D));
 var c;
diff --git a/tests/baselines/reference/derivedClassTransitivity3.js b/tests/baselines/reference/derivedClassTransitivity3.js
index 35a080f180044..5b6f72f5eaeda 100644
--- a/tests/baselines/reference/derivedClassTransitivity3.js
+++ b/tests/baselines/reference/derivedClassTransitivity3.js
@@ -22,6 +22,20 @@ var r2 = e.foo('', 1);
 
 //// [derivedClassTransitivity3.js]
 // subclassing is not transitive when you can remove required parameters and add optional parameters
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -36,6 +50,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x, y) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function (_super) {
@@ -44,6 +59,7 @@ var D = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     D.prototype.foo = function (x) { }; // ok to drop parameters
+    __names(D.prototype, ["foo"]);
     return D;
 }(C));
 var E = (function (_super) {
@@ -52,6 +68,7 @@ var E = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     E.prototype.foo = function (x, y) { }; // ok to add optional parameters
+    __names(E.prototype, ["foo"]);
     return E;
 }(D));
 var c;
diff --git a/tests/baselines/reference/derivedClassTransitivity4.js b/tests/baselines/reference/derivedClassTransitivity4.js
index e0f82d55a7c79..68162bb8a6324 100644
--- a/tests/baselines/reference/derivedClassTransitivity4.js
+++ b/tests/baselines/reference/derivedClassTransitivity4.js
@@ -22,6 +22,20 @@ var r2 = e.foo('');
 
 //// [derivedClassTransitivity4.js]
 // subclassing is not transitive when you can remove required parameters and add optional parameters on protected members
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -36,6 +50,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function (_super) {
@@ -44,6 +59,7 @@ var D = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     D.prototype.foo = function () { }; // ok to drop parameters
+    __names(D.prototype, ["foo"]);
     return D;
 }(C));
 var E = (function (_super) {
@@ -52,6 +68,7 @@ var E = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     E.prototype.foo = function (x) { }; // ok to add optional parameters
+    __names(E.prototype, ["foo"]);
     return E;
 }(D));
 var c;
diff --git a/tests/baselines/reference/derivedClassWithAny.js b/tests/baselines/reference/derivedClassWithAny.js
index c8ed8ce5cad26..75dbf8c61c682 100644
--- a/tests/baselines/reference/derivedClassWithAny.js
+++ b/tests/baselines/reference/derivedClassWithAny.js
@@ -60,6 +60,20 @@ var r = c.foo(); // e.foo would return string
 
 
 //// [derivedClassWithAny.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -91,6 +105,7 @@ var C = (function () {
     C.bar = function () {
         return 1;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function (_super) {
@@ -118,6 +133,7 @@ var D = (function (_super) {
     D.bar = function () {
         return null;
     };
+    __names(D.prototype, ["foo"]);
     return D;
 }(C));
 // if D is a valid class definition than E is now not safe tranisitively through C
@@ -144,6 +160,7 @@ var E = (function (_super) {
     E.bar = function () {
         return '';
     };
+    __names(E.prototype, ["foo"]);
     return E;
 }(D));
 var c;
diff --git a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js
index c92a192a86416..51b82b3f7848a 100644
--- a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js
+++ b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js
@@ -22,6 +22,20 @@ class Derived extends Base {
 
 
 //// [derivedClassWithPrivateInstanceShadowingProtectedInstance.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -44,6 +58,7 @@ var Base = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Base.prototype, ["fn"]);
     return Base;
 }());
 // error, not a subtype
@@ -61,5 +76,6 @@ var Derived = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(Derived.prototype, ["fn"]);
     return Derived;
 }(Base));
diff --git a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js
index 36c6cb56563b4..db82dcdc6da3e 100644
--- a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js
+++ b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js
@@ -33,6 +33,20 @@ var r6 = Derived.a; // error
 Derived.a = 2; // error
 
 //// [derivedClassWithPrivateInstanceShadowingPublicInstance.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -55,6 +69,7 @@ var Base = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Base.prototype, ["fn"]);
     return Base;
 }());
 // error, not a subtype
@@ -72,6 +87,7 @@ var Derived = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(Derived.prototype, ["fn"]);
     return Derived;
 }(Base));
 var r = Base.x; // ok
diff --git a/tests/baselines/reference/derivedClasses.js b/tests/baselines/reference/derivedClasses.js
index b23161d00d2c5..1631e9b97066a 100644
--- a/tests/baselines/reference/derivedClasses.js
+++ b/tests/baselines/reference/derivedClasses.js
@@ -41,6 +41,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Red = (function (_super) {
     __extends(Red, _super);
     function Red() {
@@ -51,6 +65,7 @@ var Red = (function (_super) {
         var getHue = function () { return _this.hue(); };
         return getHue() + " red";
     };
+    __names(Red.prototype, ["shade"]);
     return Red;
 }(Color));
 var Color = (function () {
@@ -58,6 +73,7 @@ var Color = (function () {
     }
     Color.prototype.shade = function () { return "some shade"; };
     Color.prototype.hue = function () { return "some hue"; };
+    __names(Color.prototype, ["shade", "hue"]);
     return Color;
 }());
 var Blue = (function (_super) {
@@ -70,6 +86,7 @@ var Blue = (function (_super) {
         var getHue = function () { return _this.hue(); };
         return getHue() + " blue";
     };
+    __names(Blue.prototype, ["shade"]);
     return Blue;
 }(Color));
 var r = new Red();
diff --git a/tests/baselines/reference/derivedGenericClassWithAny.js b/tests/baselines/reference/derivedGenericClassWithAny.js
index 0cf4c316a44bd..7d352e5a571b3 100644
--- a/tests/baselines/reference/derivedGenericClassWithAny.js
+++ b/tests/baselines/reference/derivedGenericClassWithAny.js
@@ -43,6 +43,20 @@ c = e;
 var r = c.foo(); // e.foo would return string
 
 //// [derivedGenericClassWithAny.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -64,6 +78,7 @@ var C = (function () {
     C.prototype.foo = function () {
         return null;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function (_super) {
@@ -91,6 +106,7 @@ var D = (function (_super) {
     D.bar = function () {
         return null;
     };
+    __names(D.prototype, ["foo"]);
     return D;
 }(C));
 // if D is a valid class definition than E is now not safe tranisitively through C
@@ -108,6 +124,7 @@ var E = (function (_super) {
     E.prototype.foo = function () {
         return ''; // error
     };
+    __names(E.prototype, ["foo"]);
     return E;
 }(D));
 var c;
diff --git a/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js b/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js
index a190b26901c9e..0ef964991ef2a 100644
--- a/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js
+++ b/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js
@@ -18,6 +18,20 @@ class Derived extends Base {
 }
 
 //// [derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -34,6 +48,7 @@ var Base = (function () {
     Base.prototype.foo = function (x) {
         return null;
     };
+    __names(Base.prototype, ["foo"]);
     return Base;
 }());
 var Derived = (function (_super) {
@@ -49,5 +64,6 @@ var Derived = (function (_super) {
         var r2 = _super.prototype.foo.call(this, { a: 1, b: 2 }); // { a: number }
         var r3 = this.foo({ a: 1, b: 2 }); // { a: number; b: number; }
     };
+    __names(Derived.prototype, ["foo", "bar"]);
     return Derived;
 }(Base));
diff --git a/tests/baselines/reference/derivedTypeCallingBaseImplWithOptionalParams.js b/tests/baselines/reference/derivedTypeCallingBaseImplWithOptionalParams.js
index f9982a7bfe9ca..7981a31b3665e 100644
--- a/tests/baselines/reference/derivedTypeCallingBaseImplWithOptionalParams.js
+++ b/tests/baselines/reference/derivedTypeCallingBaseImplWithOptionalParams.js
@@ -14,11 +14,26 @@ var y: MyClass = new MyClass();
 y.myMethod(); // error
 
 //// [derivedTypeCallingBaseImplWithOptionalParams.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var MyClass = (function () {
     function MyClass() {
     }
     MyClass.prototype.myMethod = function (myList) {
     };
+    __names(MyClass.prototype, ["myMethod"]);
     return MyClass;
 }());
 var x = new MyClass();
diff --git a/tests/baselines/reference/destructuringParameterDeclaration1ES5.js b/tests/baselines/reference/destructuringParameterDeclaration1ES5.js
index 28e6429fb7fa0..79213b521ee4e 100644
--- a/tests/baselines/reference/destructuringParameterDeclaration1ES5.js
+++ b/tests/baselines/reference/destructuringParameterDeclaration1ES5.js
@@ -101,6 +101,20 @@ function e5({x: [a, b, c]}: { x: [number, number, number] }) { }  // x has type
 // A parameter declaration may specify either an identifier or a binding pattern.
 // The identifiers specified in parameter declarations and binding patterns
 // in a parameter list must be unique within that parameter list.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // If the declaration includes a type annotation, the parameter is of that type
 function a1(_a) {
     var a = _a[0], b = _a[1], c = _a[2][0][0];
@@ -186,6 +200,7 @@ var C2 = (function () {
     C2.prototype.e0 = function (_a) {
         var a = _a[0], b = _a[1], c = _a[2];
     };
+    __names(C2.prototype, ["d3", "d4", "e0"]);
     return C2;
 }());
 var C3 = (function () {
@@ -200,6 +215,7 @@ var C3 = (function () {
     C3.prototype.e0 = function (_a) {
         var a = _a[0], b = _a[1], c = _a[2];
     };
+    __names(C3.prototype, ["d3", "d4", "e0"]);
     return C3;
 }());
 function d5(_a) {
diff --git a/tests/baselines/reference/destructuringParameterDeclaration1ES5iterable.js b/tests/baselines/reference/destructuringParameterDeclaration1ES5iterable.js
index d903618603586..c30fbffb1114a 100644
--- a/tests/baselines/reference/destructuringParameterDeclaration1ES5iterable.js
+++ b/tests/baselines/reference/destructuringParameterDeclaration1ES5iterable.js
@@ -101,6 +101,20 @@ function e5({x: [a, b, c]}: { x: [number, number, number] }) { }  // x has type
 // A parameter declaration may specify either an identifier or a binding pattern.
 // The identifiers specified in parameter declarations and binding patterns
 // in a parameter list must be unique within that parameter list.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __read = (this && this.__read) || function (o, n) {
     var m = typeof Symbol === "function" && o[Symbol.iterator];
     if (!m) return o;
@@ -202,6 +216,7 @@ var C2 = (function () {
     C2.prototype.e0 = function (_a) {
         var _b = __read(_a, 3), a = _b[0], b = _b[1], c = _b[2];
     };
+    __names(C2.prototype, ["d3", "d4", "e0"]);
     return C2;
 }());
 var C3 = (function () {
@@ -216,6 +231,7 @@ var C3 = (function () {
     C3.prototype.e0 = function (_a) {
         var _b = __read(_a, 3), a = _b[0], b = _b[1], c = _b[2];
     };
+    __names(C3.prototype, ["d3", "d4", "e0"]);
     return C3;
 }());
 function d5(_a) {
diff --git a/tests/baselines/reference/destructuringParameterDeclaration2.js b/tests/baselines/reference/destructuringParameterDeclaration2.js
index 7cc2cb52318c8..5523945b259f4 100644
--- a/tests/baselines/reference/destructuringParameterDeclaration2.js
+++ b/tests/baselines/reference/destructuringParameterDeclaration2.js
@@ -72,6 +72,20 @@ function e0({x: [number, number, number]}) { }  // error, duplicate identifier;
 // A parameter declaration may specify either an identifier or a binding pattern.
 // The identifiers specified in parameter declarations and binding patterns
 // in a parameter list must be unique within that parameter list.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // If the declaration includes a type annotation, the parameter is of that type
 function a0(_a) {
     var a = _a[0], b = _a[1], c = _a[2][0][0];
@@ -139,6 +153,7 @@ var C4 = (function () {
     C4.prototype.e0 = function (_a) {
         var a = _a[0], b = _a[1], q = _a[2];
     };
+    __names(C4.prototype, ["d3", "d4", "e0"]);
     return C4;
 }());
 // Destructuring parameter declarations do not permit type annotations on the individual binding patterns,
diff --git a/tests/baselines/reference/destructuringParameterProperties2.js b/tests/baselines/reference/destructuringParameterProperties2.js
index 4dd12bdc317a4..31e41d091c932 100644
--- a/tests/baselines/reference/destructuringParameterProperties2.js
+++ b/tests/baselines/reference/destructuringParameterProperties2.js
@@ -30,6 +30,20 @@ var [z_a, z_b, z_c] = [z.getA(), z.getB(), z.getC()];
 
 
 //// [destructuringParameterProperties2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1(k, _a) {
         var a = _a[0], b = _a[1], c = _a[2];
@@ -47,6 +61,7 @@ var C1 = (function () {
     C1.prototype.getC = function () {
         return this.c;
     };
+    __names(C1.prototype, ["getA", "getB", "getC"]);
     return C1;
 }());
 var x = new C1(undefined, [0, undefined, ""]);
diff --git a/tests/baselines/reference/destructuringParameterProperties3.js b/tests/baselines/reference/destructuringParameterProperties3.js
index d9b0c5aebf6f1..98284a97bc42e 100644
--- a/tests/baselines/reference/destructuringParameterProperties3.js
+++ b/tests/baselines/reference/destructuringParameterProperties3.js
@@ -33,6 +33,20 @@ var [z_a, z_b, z_c] = [z.getA(), z.getB(), z.getC()];
 
 
 //// [destructuringParameterProperties3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1(k, _a) {
         var a = _a[0], b = _a[1], c = _a[2];
@@ -50,6 +64,7 @@ var C1 = (function () {
     C1.prototype.getC = function () {
         return this.c;
     };
+    __names(C1.prototype, ["getA", "getB", "getC"]);
     return C1;
 }());
 var x = new C1(undefined, [0, true, ""]);
diff --git a/tests/baselines/reference/detachedCommentAtStartOfFunctionBody1.js b/tests/baselines/reference/detachedCommentAtStartOfFunctionBody1.js
index 1b459bbe06203..27926bb2b9dc0 100644
--- a/tests/baselines/reference/detachedCommentAtStartOfFunctionBody1.js
+++ b/tests/baselines/reference/detachedCommentAtStartOfFunctionBody1.js
@@ -9,6 +9,20 @@ class TestFile {
 }
 
 //// [detachedCommentAtStartOfFunctionBody1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var TestFile = (function () {
     function TestFile() {
     }
@@ -19,5 +33,6 @@ var TestFile = (function () {
         /// <returns type="Function" />
         return function () { return message + _this.name; };
     };
+    __names(TestFile.prototype, ["foo"]);
     return TestFile;
 }());
diff --git a/tests/baselines/reference/detachedCommentAtStartOfFunctionBody2.js b/tests/baselines/reference/detachedCommentAtStartOfFunctionBody2.js
index 8b33b737bebb2..93358d1abfe0e 100644
--- a/tests/baselines/reference/detachedCommentAtStartOfFunctionBody2.js
+++ b/tests/baselines/reference/detachedCommentAtStartOfFunctionBody2.js
@@ -10,6 +10,20 @@ class TestFile {
 }
 
 //// [detachedCommentAtStartOfFunctionBody2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var TestFile = (function () {
     function TestFile() {
     }
@@ -20,5 +34,6 @@ var TestFile = (function () {
         var _this = this;
         return function () { return message + _this.name; };
     };
+    __names(TestFile.prototype, ["foo"]);
     return TestFile;
 }());
diff --git a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js b/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js
index 495ac29f26980..2a4b23bd30239 100644
--- a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js
+++ b/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js
@@ -11,6 +11,20 @@ class TestFile {
 }
 
 //// [detachedCommentAtStartOfLambdaFunction1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var TestFile = (function () {
     function TestFile() {
     }
@@ -27,5 +41,6 @@ var TestFile = (function () {
             return message + _this.name;
         };
     };
+    __names(TestFile.prototype, ["foo"]);
     return TestFile;
 }());
diff --git a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js b/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js
index e6ced9a8a420c..034674da0a97a 100644
--- a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js
+++ b/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js
@@ -12,6 +12,20 @@ class TestFile {
 }
 
 //// [detachedCommentAtStartOfLambdaFunction2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var TestFile = (function () {
     function TestFile() {
     }
@@ -28,5 +42,6 @@ var TestFile = (function () {
             return message + _this.name;
         };
     };
+    __names(TestFile.prototype, ["foo"]);
     return TestFile;
 }());
diff --git a/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNode.js b/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNode.js
index a18eac74cdbcf..e16d8cc16240a 100644
--- a/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNode.js
+++ b/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNode.js
@@ -11,10 +11,25 @@ var x = 10;
 declare var OData: any;
 
 //// [file1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x, y) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var x = 10;
diff --git a/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNodets.js b/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNodets.js
index a93a9911c4de9..ff43f4a7ccd00 100644
--- a/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNodets.js
+++ b/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNodets.js
@@ -9,9 +9,24 @@ class C {
 declare var OData: any;
 
 //// [doNotEmitPinnedCommentOnNotEmittedNodets.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x, y) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/dottedSymbolResolution1.js b/tests/baselines/reference/dottedSymbolResolution1.js
index 956968761aec0..87a4bfe8fc7c7 100644
--- a/tests/baselines/reference/dottedSymbolResolution1.js
+++ b/tests/baselines/reference/dottedSymbolResolution1.js
@@ -26,10 +26,25 @@ function _setBarAndText(): void {
 }
 
 //// [dottedSymbolResolution1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
     Base.prototype.foo = function () { };
+    __names(Base.prototype, ["foo"]);
     return Base;
 }());
 function each(collection, callback) {
diff --git a/tests/baselines/reference/downlevelLetConst16.js b/tests/baselines/reference/downlevelLetConst16.js
index 944bb192e906c..56f230b67e6ae 100644
--- a/tests/baselines/reference/downlevelLetConst16.js
+++ b/tests/baselines/reference/downlevelLetConst16.js
@@ -229,6 +229,20 @@ function foo12() {
 
 //// [downlevelLetConst16.js]
 'use strict';
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var x = 10;
 var y;
 var z;
@@ -276,6 +290,7 @@ var A = (function () {
         }
         use(x);
     };
+    __names(A.prototype, ["m1", "m2"]);
     return A;
 }());
 var B = (function () {
@@ -300,6 +315,7 @@ var B = (function () {
         }
         use(x);
     };
+    __names(B.prototype, ["m1", "m2"]);
     return B;
 }());
 function bar1() {
diff --git a/tests/baselines/reference/duplicateClassElements.js b/tests/baselines/reference/duplicateClassElements.js
index ed47c532a76a0..58727cb755053 100644
--- a/tests/baselines/reference/duplicateClassElements.js
+++ b/tests/baselines/reference/duplicateClassElements.js
@@ -45,6 +45,20 @@ class a {
 }
 
 //// [duplicateClassElements.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var a = (function () {
     function a() {
     }
@@ -101,5 +115,6 @@ var a = (function () {
     });
     a.prototype.z2 = function () {
     };
+    __names(a.prototype, ["b", "b", "z", "z2"]);
     return a;
 }());
diff --git a/tests/baselines/reference/duplicateLocalVariable1.js b/tests/baselines/reference/duplicateLocalVariable1.js
index 61e8dcd02f872..f59969ed30f66 100644
--- a/tests/baselines/reference/duplicateLocalVariable1.js
+++ b/tests/baselines/reference/duplicateLocalVariable1.js
@@ -346,6 +346,20 @@ export var tests: TestRunner = (function () {
 
 //// [duplicateLocalVariable1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 / /;
 commonjs;
@@ -406,6 +420,7 @@ var TestRunner = (function () {
         else {
         }
     };
+    __names(TestRunner.prototype, ["addTest", "run"]);
     return TestRunner;
 }());
 exports.TestRunner = TestRunner;
diff --git a/tests/baselines/reference/duplicateLocalVariable2.js b/tests/baselines/reference/duplicateLocalVariable2.js
index 2962e544b9b94..c5155b033a6e7 100644
--- a/tests/baselines/reference/duplicateLocalVariable2.js
+++ b/tests/baselines/reference/duplicateLocalVariable2.js
@@ -36,6 +36,20 @@ export var tests: TestRunner = (function () {
 })();
 
 //// [duplicateLocalVariable2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -56,6 +70,7 @@ define(["require", "exports"], function (require, exports) {
         };
         TestRunner.prototype.addTest = function (test) {
         };
+        __names(TestRunner.prototype, ["addTest"]);
         return TestRunner;
     }());
     exports.TestRunner = TestRunner;
diff --git a/tests/baselines/reference/duplicatePropertyNames.js b/tests/baselines/reference/duplicatePropertyNames.js
index d4dfe612fc54a..db3ce57366b5a 100644
--- a/tests/baselines/reference/duplicatePropertyNames.js
+++ b/tests/baselines/reference/duplicatePropertyNames.js
@@ -50,6 +50,20 @@ var b = {
 
 //// [duplicatePropertyNames.js]
 // duplicate property names are an error in all types
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
         this.baz = function () { };
@@ -57,6 +71,7 @@ var C = (function () {
     }
     C.prototype.bar = function (x) { };
     C.prototype.bar = function (x) { };
+    __names(C.prototype, ["bar", "bar"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/duplicateTypeParameters2.js b/tests/baselines/reference/duplicateTypeParameters2.js
index 63910fa175830..50ec7c7c72f15 100644
--- a/tests/baselines/reference/duplicateTypeParameters2.js
+++ b/tests/baselines/reference/duplicateTypeParameters2.js
@@ -5,15 +5,31 @@ class B { public bar() { } }
 interface I<T extends A, T extends B> {}
 
 //// [duplicateTypeParameters2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.bar = function () { };
+    __names(B.prototype, ["bar"]);
     return B;
 }());
diff --git a/tests/baselines/reference/duplicateVariablesByScope.js b/tests/baselines/reference/duplicateVariablesByScope.js
index ed6b7834a1d25..7e21154755551 100644
--- a/tests/baselines/reference/duplicateVariablesByScope.js
+++ b/tests/baselines/reference/duplicateVariablesByScope.js
@@ -33,6 +33,20 @@ class C {
 
 //// [duplicateVariablesByScope.js]
 // duplicate local variables are only reported at global scope
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     for (var j = 0; j < 10; j++) {
@@ -61,5 +75,6 @@ var C = (function () {
             var x = 2;
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/emitArrowFunctionWhenUsingArguments12.js b/tests/baselines/reference/emitArrowFunctionWhenUsingArguments12.js
index 5ee0724634785..53eff83d7448b 100644
--- a/tests/baselines/reference/emitArrowFunctionWhenUsingArguments12.js
+++ b/tests/baselines/reference/emitArrowFunctionWhenUsingArguments12.js
@@ -6,11 +6,26 @@ class C {
 }
 
 //// [emitArrowFunctionWhenUsingArguments12.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.f = function (arguments) {
         var a = function () { return arguments; };
     };
+    __names(C.prototype, ["f"]);
     return C;
 }());
diff --git a/tests/baselines/reference/emitCapturingThisInTupleDestructuring2.js b/tests/baselines/reference/emitCapturingThisInTupleDestructuring2.js
index 890b9d4c9b843..9bac87c157d21 100644
--- a/tests/baselines/reference/emitCapturingThisInTupleDestructuring2.js
+++ b/tests/baselines/reference/emitCapturingThisInTupleDestructuring2.js
@@ -11,6 +11,20 @@ class B {
 }
 
 //// [emitCapturingThisInTupleDestructuring2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var array1 = [1, 2];
 var B = (function () {
     function B() {
@@ -19,5 +33,6 @@ var B = (function () {
         var _this = this;
         (function () { return _this.test = array1[0], _this.test1 = array1[1], _this.test2 = array1[2], array1; }); // even though there is a compiler error, we should still emit lexical capture for "this" 
     };
+    __names(B.prototype, ["method"]);
     return B;
 }());
diff --git a/tests/baselines/reference/emitClassExpressionInDeclarationFile.js b/tests/baselines/reference/emitClassExpressionInDeclarationFile.js
index ab64fe003be76..4c937f4299377 100644
--- a/tests/baselines/reference/emitClassExpressionInDeclarationFile.js
+++ b/tests/baselines/reference/emitClassExpressionInDeclarationFile.js
@@ -32,6 +32,20 @@ test.tags();
 
 //// [emitClassExpressionInDeclarationFile.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -48,6 +62,7 @@ exports.simpleExample = (function () {
     }
     class_1.getTags = function () { };
     class_1.prototype.tags = function () { };
+    __names(class_1.prototype, ["tags"]);
     return class_1;
 }());
 exports.circularReference = (function () {
@@ -55,6 +70,7 @@ exports.circularReference = (function () {
     }
     C.getTags = function (c) { return c; };
     C.prototype.tags = function (c) { return c; };
+    __names(C.prototype, ["tags"]);
     return C;
 }());
 // repro from #15066
@@ -62,6 +78,7 @@ var FooItem = (function () {
     function FooItem() {
     }
     FooItem.prototype.foo = function () { };
+    __names(FooItem.prototype, ["foo"]);
     return FooItem;
 }());
 exports.FooItem = FooItem;
@@ -73,6 +90,7 @@ function WithTags(Base) {
         }
         class_2.getTags = function () { };
         class_2.prototype.tags = function () { };
+        __names(class_2.prototype, ["tags"]);
         return class_2;
     }(Base));
 }
diff --git a/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js b/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js
index e3a0aa4cb9949..e9ee74a63e62e 100644
--- a/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js
+++ b/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js
@@ -31,6 +31,20 @@ test.tags();
 
 //// [emitClassExpressionInDeclarationFile2.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -48,6 +62,7 @@ exports.noPrivates = (_a = (function () {
         }
         class_1.getTags = function () { };
         class_1.prototype.tags = function () { };
+        __names(class_1.prototype, ["tags"]);
         return class_1;
     }()),
     _a.ps = -1,
@@ -58,6 +73,7 @@ var FooItem = (function () {
         this.property = "capitalism";
     }
     FooItem.prototype.foo = function () { };
+    __names(FooItem.prototype, ["foo"]);
     return FooItem;
 }());
 exports.FooItem = FooItem;
@@ -69,6 +85,7 @@ function WithTags(Base) {
         }
         class_2.getTags = function () { };
         class_2.prototype.tags = function () { };
+        __names(class_2.prototype, ["tags"]);
         return class_2;
     }(Base));
 }
diff --git a/tests/baselines/reference/emitDecoratorMetadata_object.js b/tests/baselines/reference/emitDecoratorMetadata_object.js
index ff4a65710a792..7a3552f86ff68 100644
--- a/tests/baselines/reference/emitDecoratorMetadata_object.js
+++ b/tests/baselines/reference/emitDecoratorMetadata_object.js
@@ -11,6 +11,20 @@ class A {
 
 
 //// [emitDecoratorMetadata_object.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -24,6 +38,7 @@ var A = (function () {
     function A(hi) {
     }
     A.prototype.method = function (there) { };
+    __names(A.prototype, ["method"]);
     __decorate([
         MyMethodDecorator,
         __metadata("design:type", Function),
diff --git a/tests/baselines/reference/emitDecoratorMetadata_restArgs.js b/tests/baselines/reference/emitDecoratorMetadata_restArgs.js
index 3f1ffd54bce75..4c2aebbd23f64 100644
--- a/tests/baselines/reference/emitDecoratorMetadata_restArgs.js
+++ b/tests/baselines/reference/emitDecoratorMetadata_restArgs.js
@@ -18,6 +18,20 @@ class B {
 
 
 //// [emitDecoratorMetadata_restArgs.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -40,6 +54,7 @@ var A = (function () {
             args[_i] = arguments[_i];
         }
     };
+    __names(A.prototype, ["method"]);
     __decorate([
         MyMethodDecorator,
         __metadata("design:type", Function),
@@ -65,6 +80,7 @@ var B = (function () {
             args[_i] = arguments[_i];
         }
     };
+    __names(B.prototype, ["method"]);
     __decorate([
         MyMethodDecorator,
         __metadata("design:type", Function),
diff --git a/tests/baselines/reference/emitDefaultParametersMethod.js b/tests/baselines/reference/emitDefaultParametersMethod.js
index 1048926a187b0..58a34d9509228 100644
--- a/tests/baselines/reference/emitDefaultParametersMethod.js
+++ b/tests/baselines/reference/emitDefaultParametersMethod.js
@@ -18,6 +18,20 @@ class E {
 
 
 //// [emitDefaultParametersMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(t, z, x, y) {
         if (y === void 0) { y = "hello"; }
@@ -42,6 +56,7 @@ var C = (function () {
             rest[_i - 1] = arguments[_i];
         }
     };
+    __names(C.prototype, ["foo", "foo1", "bar", "boo"]);
     return C;
 }());
 var D = (function () {
diff --git a/tests/baselines/reference/emitMemberAccessExpression.js b/tests/baselines/reference/emitMemberAccessExpression.js
index f242f0903c419..d3a05ce0afb3b 100644
--- a/tests/baselines/reference/emitMemberAccessExpression.js
+++ b/tests/baselines/reference/emitMemberAccessExpression.js
@@ -27,6 +27,20 @@ module Microsoft.PeopleAtWork.Model {
 //// [emitMemberAccessExpression_file2.js]
 /// <reference path="emitMemberAccessExpression_file3.ts" />
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Microsoft;
 (function (Microsoft) {
     var PeopleAtWork;
@@ -39,6 +53,7 @@ var Microsoft;
                 _Person.prototype.populate = function (raw) {
                     var res = Model.KnockoutExtentions;
                 };
+                __names(_Person.prototype, ["populate"]);
                 return _Person;
             }());
             Model._Person = _Person;
diff --git a/tests/baselines/reference/emitRestParametersMethod.js b/tests/baselines/reference/emitRestParametersMethod.js
index fed2138f36be1..9cbffe48f0a26 100644
--- a/tests/baselines/reference/emitRestParametersMethod.js
+++ b/tests/baselines/reference/emitRestParametersMethod.js
@@ -14,6 +14,20 @@ class D {
 }
 
 //// [emitRestParametersMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(name) {
         var rest = [];
@@ -33,6 +47,7 @@ var C = (function () {
             rest[_i - 1] = arguments[_i];
         }
     };
+    __names(C.prototype, ["bar", "foo"]);
     return C;
 }());
 var D = (function () {
@@ -54,5 +69,6 @@ var D = (function () {
             rest[_i - 1] = arguments[_i];
         }
     };
+    __names(D.prototype, ["bar", "foo"]);
     return D;
 }());
diff --git a/tests/baselines/reference/emitThisInSuperMethodCall.js b/tests/baselines/reference/emitThisInSuperMethodCall.js
index 2d800d562c292..9a6984e704ac5 100644
--- a/tests/baselines/reference/emitThisInSuperMethodCall.js
+++ b/tests/baselines/reference/emitThisInSuperMethodCall.js
@@ -28,6 +28,20 @@ class RegisteredUser extends User {
 
 
 //// [emitThisInSuperMethodCall.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -43,6 +57,7 @@ var User = (function () {
     }
     User.prototype.sayHello = function () {
     };
+    __names(User.prototype, ["sayHello"]);
     return User;
 }());
 var RegisteredUser = (function (_super) {
@@ -70,5 +85,6 @@ var RegisteredUser = (function (_super) {
             _super.sayHello.call(this);
         }
     };
+    __names(RegisteredUser.prototype, ["f", "g", "h"]);
     return RegisteredUser;
 }(User));
diff --git a/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js b/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js
index cfd7c9725e4e8..81b4109059d06 100644
--- a/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js
+++ b/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js
@@ -61,6 +61,20 @@ class C9 extends B9 {
 
 
 //// [C1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __generator = (this && this.__generator) || function (thisArg, body) {
     var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
     return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
@@ -110,9 +124,24 @@ var C1 = (function () {
             });
         });
     };
+    __names(C1.prototype, ["f"]);
     return C1;
 }());
 //// [C2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __generator = (this && this.__generator) || function (thisArg, body) {
     var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
     return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
@@ -168,9 +197,24 @@ var C2 = (function () {
             });
         });
     };
+    __names(C2.prototype, ["f"]);
     return C2;
 }());
 //// [C3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __generator = (this && this.__generator) || function (thisArg, body) {
     var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
     return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
@@ -226,9 +270,24 @@ var C3 = (function () {
             });
         });
     };
+    __names(C3.prototype, ["f"]);
     return C3;
 }());
 //// [C4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __generator = (this && this.__generator) || function (thisArg, body) {
     var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
     return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
@@ -305,9 +364,24 @@ var C4 = (function () {
             });
         });
     };
+    __names(C4.prototype, ["f"]);
     return C4;
 }());
 //// [C5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __generator = (this && this.__generator) || function (thisArg, body) {
     var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
     return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
@@ -391,9 +465,24 @@ var C5 = (function () {
             });
         });
     };
+    __names(C5.prototype, ["f"]);
     return C5;
 }());
 //// [C6.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __generator = (this && this.__generator) || function (thisArg, body) {
     var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
     return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
@@ -449,9 +538,24 @@ var C6 = (function () {
             });
         });
     };
+    __names(C6.prototype, ["f"]);
     return C6;
 }());
 //// [C7.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __generator = (this && this.__generator) || function (thisArg, body) {
     var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
     return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
@@ -501,9 +605,24 @@ var C7 = (function () {
             });
         });
     };
+    __names(C7.prototype, ["f"]);
     return C7;
 }());
 //// [C8.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __generator = (this && this.__generator) || function (thisArg, body) {
     var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
     return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
@@ -556,9 +675,24 @@ var C8 = (function () {
             });
         });
     };
+    __names(C8.prototype, ["g", "f"]);
     return C8;
 }());
 //// [C9.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -612,6 +746,7 @@ var B9 = (function () {
     function B9() {
     }
     B9.prototype.g = function () { };
+    __names(B9.prototype, ["g"]);
     return B9;
 }());
 var C9 = (function (_super) {
@@ -627,5 +762,6 @@ var C9 = (function (_super) {
             });
         });
     };
+    __names(C9.prototype, ["f"]);
     return C9;
 }(B9));
diff --git a/tests/baselines/reference/errorRecoveryInClassDeclaration.js b/tests/baselines/reference/errorRecoveryInClassDeclaration.js
index cfe274c34bf30..1c9a761269e87 100644
--- a/tests/baselines/reference/errorRecoveryInClassDeclaration.js
+++ b/tests/baselines/reference/errorRecoveryInClassDeclaration.js
@@ -8,11 +8,26 @@ class C {
 }
 
 //// [errorRecoveryInClassDeclaration.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.bar = function () {
         var v = foo(public, blaz(), {});
     };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/errorSuperCalls.js b/tests/baselines/reference/errorSuperCalls.js
index db4f0ac1798ff..e4e192ff77243 100644
--- a/tests/baselines/reference/errorSuperCalls.js
+++ b/tests/baselines/reference/errorSuperCalls.js
@@ -75,6 +75,20 @@ class OtherDerived extends OtherBase {
 
 
 //// [errorSuperCalls.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -124,6 +138,7 @@ var NoBase = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(NoBase.prototype, ["fn"]);
     //super call in static class member initializer with no base type
     NoBase.k = _this = _super.call(this) || this;
     return NoBase;
@@ -173,5 +188,6 @@ var OtherDerived = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(OtherDerived.prototype, ["fn"]);
     return OtherDerived;
 }(OtherBase));
diff --git a/tests/baselines/reference/errorSuperPropertyAccess.js b/tests/baselines/reference/errorSuperPropertyAccess.js
index 3163007e742bd..92cc81eed0baa 100644
--- a/tests/baselines/reference/errorSuperPropertyAccess.js
+++ b/tests/baselines/reference/errorSuperPropertyAccess.js
@@ -129,6 +129,20 @@ var obj = { n: super.wat, p: super.foo() };
 
 
 //// [errorSuperPropertyAccess.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -169,6 +183,7 @@ var NoBase = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(NoBase.prototype, ["fn"]);
     return NoBase;
 }());
 var SomeBase = (function () {
@@ -180,6 +195,7 @@ var SomeBase = (function () {
     SomeBase.prototype.publicFunc = function () { };
     SomeBase.privateStaticFunc = function () { };
     SomeBase.publicStaticFunc = function () { };
+    __names(SomeBase.prototype, ["privateFunc", "publicFunc"]);
     SomeBase.privateStaticMember = 0;
     SomeBase.publicStaticMember = 0;
     return SomeBase;
@@ -217,6 +233,7 @@ var SomeDerived1 = (function (_super) {
             test: function () { return _super.publicFunc.call(this); }
         };
     };
+    __names(SomeDerived1.prototype, ["fn", "fn2"]);
     return SomeDerived1;
 }(SomeBase));
 //super.privateProperty in constructor of derived class
@@ -243,6 +260,7 @@ var SomeDerived2 = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(SomeDerived2.prototype, ["fn"]);
     return SomeDerived2;
 }(SomeBase));
 //super.publicStaticMemberNotFunction in static member function of derived class
diff --git a/tests/baselines/reference/errorsInGenericTypeReference.js b/tests/baselines/reference/errorsInGenericTypeReference.js
index ad999dcb913e4..a4a3e3d8f3c96 100644
--- a/tests/baselines/reference/errorsInGenericTypeReference.js
+++ b/tests/baselines/reference/errorsInGenericTypeReference.js
@@ -72,6 +72,20 @@ interface testInterface2 {
 
 
 //// [errorsInGenericTypeReference.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -92,6 +106,7 @@ var testClass1 = (function () {
     function testClass1() {
     }
     testClass1.prototype.method = function () { };
+    __names(testClass1.prototype, ["method"]);
     return testClass1;
 }());
 var tc1 = new testClass1();
@@ -115,6 +130,7 @@ var testClass3 = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(testClass3.prototype, ["testMethod1"]);
     return testClass3;
 }());
 // in function return type annotation
@@ -133,6 +149,7 @@ var testClass6 = (function () {
     function testClass6() {
     }
     testClass6.prototype.method = function () { }; // error: could not find symbol V
+    __names(testClass6.prototype, ["method"]);
     return testClass6;
 }());
 // in extends clause
diff --git a/tests/baselines/reference/es3-amd.js b/tests/baselines/reference/es3-amd.js
index caa9552c3f0ad..4c68ada569bba 100644
--- a/tests/baselines/reference/es3-amd.js
+++ b/tests/baselines/reference/es3-amd.js
@@ -13,11 +13,26 @@ class A
 }
 
 //// [es3-amd.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
diff --git a/tests/baselines/reference/es3-declaration-amd.js b/tests/baselines/reference/es3-declaration-amd.js
index 0c447ff25b7d3..99814c9e3f9fd 100644
--- a/tests/baselines/reference/es3-declaration-amd.js
+++ b/tests/baselines/reference/es3-declaration-amd.js
@@ -13,12 +13,27 @@ class A
 }
 
 //// [es3-declaration-amd.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
 
diff --git a/tests/baselines/reference/es3-sourcemap-amd.js b/tests/baselines/reference/es3-sourcemap-amd.js
index d135a0cad7fff..ecf68f3c7e1ce 100644
--- a/tests/baselines/reference/es3-sourcemap-amd.js
+++ b/tests/baselines/reference/es3-sourcemap-amd.js
@@ -13,12 +13,27 @@ class A
 }
 
 //// [es3-sourcemap-amd.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
 //# sourceMappingURL=es3-sourcemap-amd.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/es3-sourcemap-amd.js.map b/tests/baselines/reference/es3-sourcemap-amd.js.map
index ea5ed85a88ea8..4d62437527201 100644
--- a/tests/baselines/reference/es3-sourcemap-amd.js.map
+++ b/tests/baselines/reference/es3-sourcemap-amd.js.map
@@ -1,2 +1,2 @@
 //// [es3-sourcemap-amd.js.map]
-{"version":3,"file":"es3-sourcemap-amd.js","sourceRoot":"","sources":["es3-sourcemap-amd.ts"],"names":[],"mappings":"AAAA;IAEI;IAGA,CAAC;IAEM,aAAC,GAAR;QAEI,MAAM,CAAC,EAAE,CAAC;IACd,CAAC;IACL,QAAC;AAAD,CAAC,AAXD,IAWC"}
\ No newline at end of file
+{"version":3,"file":"es3-sourcemap-amd.js","sourceRoot":"","sources":["es3-sourcemap-amd.ts"],"names":[],"mappings":";;;;;;;;;;;;;;AAAA;IAEI;IAGA,CAAC;IAEM,aAAC,GAAR;QAEI,MAAM,CAAC,EAAE,CAAC;IACd,CAAC;;IACL,QAAC;AAAD,CAAC,AAXD,IAWC"}
\ No newline at end of file
diff --git a/tests/baselines/reference/es3-sourcemap-amd.sourcemap.txt b/tests/baselines/reference/es3-sourcemap-amd.sourcemap.txt
index d3b9d665ade40..d7f6ca493ac07 100644
--- a/tests/baselines/reference/es3-sourcemap-amd.sourcemap.txt
+++ b/tests/baselines/reference/es3-sourcemap-amd.sourcemap.txt
@@ -8,11 +8,25 @@ sources: es3-sourcemap-amd.ts
 emittedFile:tests/cases/compiler/es3-sourcemap-amd.js
 sourceFile:es3-sourcemap-amd.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>var A = (function () {
 1 >
 2 >^^^^^^^^^^^^^^^^^^^->
 1 >
-1 >Emitted(1, 1) Source(1, 1) + SourceIndex(0)
+1 >Emitted(15, 1) Source(1, 1) + SourceIndex(0)
 ---
 >>>    function A() {
 1->^^^^
@@ -20,7 +34,7 @@ sourceFile:es3-sourcemap-amd.ts
 1->class A
   >{
   >    
-1->Emitted(2, 5) Source(3, 5) + SourceIndex(0)
+1->Emitted(16, 5) Source(3, 5) + SourceIndex(0)
 ---
 >>>    }
 1->^^^^
@@ -31,8 +45,8 @@ sourceFile:es3-sourcemap-amd.ts
   >
   >    
 2 >    }
-1->Emitted(3, 5) Source(6, 5) + SourceIndex(0)
-2 >Emitted(3, 6) Source(6, 6) + SourceIndex(0)
+1->Emitted(17, 5) Source(6, 5) + SourceIndex(0)
+2 >Emitted(17, 6) Source(6, 6) + SourceIndex(0)
 ---
 >>>    A.prototype.B = function () {
 1->^^^^
@@ -43,9 +57,9 @@ sourceFile:es3-sourcemap-amd.ts
   >    public 
 2 >    B
 3 >                 
-1->Emitted(4, 5) Source(8, 12) + SourceIndex(0)
-2 >Emitted(4, 18) Source(8, 13) + SourceIndex(0)
-3 >Emitted(4, 21) Source(8, 5) + SourceIndex(0)
+1->Emitted(18, 5) Source(8, 12) + SourceIndex(0)
+2 >Emitted(18, 18) Source(8, 13) + SourceIndex(0)
+3 >Emitted(18, 21) Source(8, 5) + SourceIndex(0)
 ---
 >>>        return 42;
 1 >^^^^^^^^
@@ -60,30 +74,31 @@ sourceFile:es3-sourcemap-amd.ts
 3 >               
 4 >               42
 5 >                 ;
-1 >Emitted(5, 9) Source(10, 9) + SourceIndex(0)
-2 >Emitted(5, 15) Source(10, 15) + SourceIndex(0)
-3 >Emitted(5, 16) Source(10, 16) + SourceIndex(0)
-4 >Emitted(5, 18) Source(10, 18) + SourceIndex(0)
-5 >Emitted(5, 19) Source(10, 19) + SourceIndex(0)
+1 >Emitted(19, 9) Source(10, 9) + SourceIndex(0)
+2 >Emitted(19, 15) Source(10, 15) + SourceIndex(0)
+3 >Emitted(19, 16) Source(10, 16) + SourceIndex(0)
+4 >Emitted(19, 18) Source(10, 18) + SourceIndex(0)
+5 >Emitted(19, 19) Source(10, 19) + SourceIndex(0)
 ---
 >>>    };
 1 >^^^^
 2 >    ^
-3 >     ^^^^^^^^^->
+3 >     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >    
 2 >    }
-1 >Emitted(6, 5) Source(11, 5) + SourceIndex(0)
-2 >Emitted(6, 6) Source(11, 6) + SourceIndex(0)
+1 >Emitted(20, 5) Source(11, 5) + SourceIndex(0)
+2 >Emitted(20, 6) Source(11, 6) + SourceIndex(0)
 ---
+>>>    __names(A.prototype, ["B"]);
 >>>    return A;
 1->^^^^
 2 >    ^^^^^^^^
 1->
   >
 2 >    }
-1->Emitted(7, 5) Source(12, 1) + SourceIndex(0)
-2 >Emitted(7, 13) Source(12, 2) + SourceIndex(0)
+1->Emitted(22, 5) Source(12, 1) + SourceIndex(0)
+2 >Emitted(22, 13) Source(12, 2) + SourceIndex(0)
 ---
 >>>}());
 1 >
@@ -106,9 +121,9 @@ sourceFile:es3-sourcemap-amd.ts
   >         return 42;
   >     }
   > }
-1 >Emitted(8, 1) Source(12, 1) + SourceIndex(0)
-2 >Emitted(8, 2) Source(12, 2) + SourceIndex(0)
-3 >Emitted(8, 2) Source(1, 1) + SourceIndex(0)
-4 >Emitted(8, 6) Source(12, 2) + SourceIndex(0)
+1 >Emitted(23, 1) Source(12, 1) + SourceIndex(0)
+2 >Emitted(23, 2) Source(12, 2) + SourceIndex(0)
+3 >Emitted(23, 2) Source(1, 1) + SourceIndex(0)
+4 >Emitted(23, 6) Source(12, 2) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=es3-sourcemap-amd.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/es5-amd.js b/tests/baselines/reference/es5-amd.js
index 23314c78e1fed..2620ba51f9eb6 100644
--- a/tests/baselines/reference/es5-amd.js
+++ b/tests/baselines/reference/es5-amd.js
@@ -13,11 +13,26 @@ class A
 }
 
 //// [es5-amd.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
diff --git a/tests/baselines/reference/es5-commonjs.js b/tests/baselines/reference/es5-commonjs.js
index e0f56796ef1da..f0024afbc9df7 100644
--- a/tests/baselines/reference/es5-commonjs.js
+++ b/tests/baselines/reference/es5-commonjs.js
@@ -15,6 +15,20 @@ export default class A
 
 //// [es5-commonjs.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 var A = (function () {
     function A() {
@@ -22,6 +36,7 @@ var A = (function () {
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
 exports.default = A;
diff --git a/tests/baselines/reference/es5-commonjs4.js b/tests/baselines/reference/es5-commonjs4.js
index 23ca56e442dc9..8615128f270b6 100644
--- a/tests/baselines/reference/es5-commonjs4.js
+++ b/tests/baselines/reference/es5-commonjs4.js
@@ -16,6 +16,20 @@ export var __esModule = 1;
 
 //// [es5-commonjs4.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 var A = (function () {
     function A() {
@@ -23,6 +37,7 @@ var A = (function () {
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
 exports.default = A;
diff --git a/tests/baselines/reference/es5-declaration-amd.js b/tests/baselines/reference/es5-declaration-amd.js
index 618553ec0cf8d..8d08794b7cc87 100644
--- a/tests/baselines/reference/es5-declaration-amd.js
+++ b/tests/baselines/reference/es5-declaration-amd.js
@@ -13,12 +13,27 @@ class A
 }
 
 //// [es5-declaration-amd.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
 
diff --git a/tests/baselines/reference/es5-souremap-amd.js b/tests/baselines/reference/es5-souremap-amd.js
index a4ac83a37af57..988a5329aca38 100644
--- a/tests/baselines/reference/es5-souremap-amd.js
+++ b/tests/baselines/reference/es5-souremap-amd.js
@@ -13,12 +13,27 @@ class A
 }
 
 //// [es5-souremap-amd.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
 //# sourceMappingURL=es5-souremap-amd.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/es5-souremap-amd.js.map b/tests/baselines/reference/es5-souremap-amd.js.map
index 111d19c26fcf6..de22612961d06 100644
--- a/tests/baselines/reference/es5-souremap-amd.js.map
+++ b/tests/baselines/reference/es5-souremap-amd.js.map
@@ -1,2 +1,2 @@
 //// [es5-souremap-amd.js.map]
-{"version":3,"file":"es5-souremap-amd.js","sourceRoot":"","sources":["es5-souremap-amd.ts"],"names":[],"mappings":"AAAA;IAEI;IAGA,CAAC;IAEM,aAAC,GAAR;QAEI,MAAM,CAAC,EAAE,CAAC;IACd,CAAC;IACL,QAAC;AAAD,CAAC,AAXD,IAWC"}
\ No newline at end of file
+{"version":3,"file":"es5-souremap-amd.js","sourceRoot":"","sources":["es5-souremap-amd.ts"],"names":[],"mappings":";;;;;;;;;;;;;;AAAA;IAEI;IAGA,CAAC;IAEM,aAAC,GAAR;QAEI,MAAM,CAAC,EAAE,CAAC;IACd,CAAC;;IACL,QAAC;AAAD,CAAC,AAXD,IAWC"}
\ No newline at end of file
diff --git a/tests/baselines/reference/es5-souremap-amd.sourcemap.txt b/tests/baselines/reference/es5-souremap-amd.sourcemap.txt
index b57cfc577154b..3166b74211c74 100644
--- a/tests/baselines/reference/es5-souremap-amd.sourcemap.txt
+++ b/tests/baselines/reference/es5-souremap-amd.sourcemap.txt
@@ -8,11 +8,25 @@ sources: es5-souremap-amd.ts
 emittedFile:tests/cases/compiler/es5-souremap-amd.js
 sourceFile:es5-souremap-amd.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>var A = (function () {
 1 >
 2 >^^^^^^^^^^^^^^^^^^^->
 1 >
-1 >Emitted(1, 1) Source(1, 1) + SourceIndex(0)
+1 >Emitted(15, 1) Source(1, 1) + SourceIndex(0)
 ---
 >>>    function A() {
 1->^^^^
@@ -20,7 +34,7 @@ sourceFile:es5-souremap-amd.ts
 1->class A
   >{
   >    
-1->Emitted(2, 5) Source(3, 5) + SourceIndex(0)
+1->Emitted(16, 5) Source(3, 5) + SourceIndex(0)
 ---
 >>>    }
 1->^^^^
@@ -31,8 +45,8 @@ sourceFile:es5-souremap-amd.ts
   >
   >    
 2 >    }
-1->Emitted(3, 5) Source(6, 5) + SourceIndex(0)
-2 >Emitted(3, 6) Source(6, 6) + SourceIndex(0)
+1->Emitted(17, 5) Source(6, 5) + SourceIndex(0)
+2 >Emitted(17, 6) Source(6, 6) + SourceIndex(0)
 ---
 >>>    A.prototype.B = function () {
 1->^^^^
@@ -43,9 +57,9 @@ sourceFile:es5-souremap-amd.ts
   >    public 
 2 >    B
 3 >                 
-1->Emitted(4, 5) Source(8, 12) + SourceIndex(0)
-2 >Emitted(4, 18) Source(8, 13) + SourceIndex(0)
-3 >Emitted(4, 21) Source(8, 5) + SourceIndex(0)
+1->Emitted(18, 5) Source(8, 12) + SourceIndex(0)
+2 >Emitted(18, 18) Source(8, 13) + SourceIndex(0)
+3 >Emitted(18, 21) Source(8, 5) + SourceIndex(0)
 ---
 >>>        return 42;
 1 >^^^^^^^^
@@ -60,30 +74,31 @@ sourceFile:es5-souremap-amd.ts
 3 >               
 4 >               42
 5 >                 ;
-1 >Emitted(5, 9) Source(10, 9) + SourceIndex(0)
-2 >Emitted(5, 15) Source(10, 15) + SourceIndex(0)
-3 >Emitted(5, 16) Source(10, 16) + SourceIndex(0)
-4 >Emitted(5, 18) Source(10, 18) + SourceIndex(0)
-5 >Emitted(5, 19) Source(10, 19) + SourceIndex(0)
+1 >Emitted(19, 9) Source(10, 9) + SourceIndex(0)
+2 >Emitted(19, 15) Source(10, 15) + SourceIndex(0)
+3 >Emitted(19, 16) Source(10, 16) + SourceIndex(0)
+4 >Emitted(19, 18) Source(10, 18) + SourceIndex(0)
+5 >Emitted(19, 19) Source(10, 19) + SourceIndex(0)
 ---
 >>>    };
 1 >^^^^
 2 >    ^
-3 >     ^^^^^^^^^->
+3 >     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >    
 2 >    }
-1 >Emitted(6, 5) Source(11, 5) + SourceIndex(0)
-2 >Emitted(6, 6) Source(11, 6) + SourceIndex(0)
+1 >Emitted(20, 5) Source(11, 5) + SourceIndex(0)
+2 >Emitted(20, 6) Source(11, 6) + SourceIndex(0)
 ---
+>>>    __names(A.prototype, ["B"]);
 >>>    return A;
 1->^^^^
 2 >    ^^^^^^^^
 1->
   >
 2 >    }
-1->Emitted(7, 5) Source(12, 1) + SourceIndex(0)
-2 >Emitted(7, 13) Source(12, 2) + SourceIndex(0)
+1->Emitted(22, 5) Source(12, 1) + SourceIndex(0)
+2 >Emitted(22, 13) Source(12, 2) + SourceIndex(0)
 ---
 >>>}());
 1 >
@@ -106,9 +121,9 @@ sourceFile:es5-souremap-amd.ts
   >         return 42;
   >     }
   > }
-1 >Emitted(8, 1) Source(12, 1) + SourceIndex(0)
-2 >Emitted(8, 2) Source(12, 2) + SourceIndex(0)
-3 >Emitted(8, 2) Source(1, 1) + SourceIndex(0)
-4 >Emitted(8, 6) Source(12, 2) + SourceIndex(0)
+1 >Emitted(23, 1) Source(12, 1) + SourceIndex(0)
+2 >Emitted(23, 2) Source(12, 2) + SourceIndex(0)
+3 >Emitted(23, 2) Source(1, 1) + SourceIndex(0)
+4 >Emitted(23, 6) Source(12, 2) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=es5-souremap-amd.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/es5-system.js b/tests/baselines/reference/es5-system.js
index 4a62c429840d4..8253b2391f0f9 100644
--- a/tests/baselines/reference/es5-system.js
+++ b/tests/baselines/reference/es5-system.js
@@ -16,6 +16,20 @@ export default class A
 //// [es5-system.js]
 System.register([], function (exports_1, context_1) {
     "use strict";
+    var __names = (this && this.__names) || (function() {
+        var name = Object.defineProperty ? (function(proto, name) {
+            Object.defineProperty(proto[name], 'name', { 
+                value: name, configurable: true, writable: false, enumerable: false
+            });
+        }) : (function(proto, name) {
+            proto[name].name = name;
+        });
+        return function (proto, keys) {
+            for (var i = keys.length - 1; i >= 0; i--) {
+                name(proto, keys[i])
+            }
+        };
+    })();
     var __moduleName = context_1 && context_1.id;
     var A;
     return {
@@ -27,6 +41,7 @@ System.register([], function (exports_1, context_1) {
                 A.prototype.B = function () {
                     return 42;
                 };
+                __names(A.prototype, ["B"]);
                 return A;
             }());
             exports_1("default", A);
diff --git a/tests/baselines/reference/es5-umd.js b/tests/baselines/reference/es5-umd.js
index 9ade8c259c02d..4ab99de13c111 100644
--- a/tests/baselines/reference/es5-umd.js
+++ b/tests/baselines/reference/es5-umd.js
@@ -14,11 +14,26 @@ class A
 
 
 //// [es5-umd.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
diff --git a/tests/baselines/reference/es5-umd2.js b/tests/baselines/reference/es5-umd2.js
index 335c0efa925ee..491ff70fc3516 100644
--- a/tests/baselines/reference/es5-umd2.js
+++ b/tests/baselines/reference/es5-umd2.js
@@ -14,6 +14,20 @@ export class A
 
 
 //// [es5-umd2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 (function (factory) {
     if (typeof module === "object" && typeof module.exports === "object") {
         var v = factory(require, exports);
@@ -31,6 +45,7 @@ export class A
         A.prototype.B = function () {
             return 42;
         };
+        __names(A.prototype, ["B"]);
         return A;
     }());
     exports.A = A;
diff --git a/tests/baselines/reference/es5-umd3.js b/tests/baselines/reference/es5-umd3.js
index 48f9971bdd13f..23d83f18acb7d 100644
--- a/tests/baselines/reference/es5-umd3.js
+++ b/tests/baselines/reference/es5-umd3.js
@@ -14,6 +14,20 @@ export default class A
 
 
 //// [es5-umd3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 (function (factory) {
     if (typeof module === "object" && typeof module.exports === "object") {
         var v = factory(require, exports);
@@ -31,6 +45,7 @@ export default class A
         A.prototype.B = function () {
             return 42;
         };
+        __names(A.prototype, ["B"]);
         return A;
     }());
     exports.default = A;
diff --git a/tests/baselines/reference/es5-umd4.js b/tests/baselines/reference/es5-umd4.js
index 71fdcc6f9b9b6..1872dbc3b1ebd 100644
--- a/tests/baselines/reference/es5-umd4.js
+++ b/tests/baselines/reference/es5-umd4.js
@@ -16,6 +16,20 @@ export = A;
 
 
 //// [es5-umd4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 (function (factory) {
     if (typeof module === "object" && typeof module.exports === "object") {
         var v = factory(require, exports);
@@ -32,6 +46,7 @@ export = A;
         A.prototype.B = function () {
             return 42;
         };
+        __names(A.prototype, ["B"]);
         return A;
     }());
     return A;
diff --git a/tests/baselines/reference/es5ExportDefaultClassDeclaration.js b/tests/baselines/reference/es5ExportDefaultClassDeclaration.js
index 39fc9336e911a..ff3b48174024f 100644
--- a/tests/baselines/reference/es5ExportDefaultClassDeclaration.js
+++ b/tests/baselines/reference/es5ExportDefaultClassDeclaration.js
@@ -6,11 +6,26 @@ export default class C {
 
 //// [es5ExportDefaultClassDeclaration.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     return C;
 }());
 exports.default = C;
diff --git a/tests/baselines/reference/es5ExportDefaultClassDeclaration2.js b/tests/baselines/reference/es5ExportDefaultClassDeclaration2.js
index fae48029e6b53..0ad182f670c7a 100644
--- a/tests/baselines/reference/es5ExportDefaultClassDeclaration2.js
+++ b/tests/baselines/reference/es5ExportDefaultClassDeclaration2.js
@@ -6,11 +6,26 @@ export default class {
 
 //// [es5ExportDefaultClassDeclaration2.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 var default_1 = (function () {
     function default_1() {
     }
     default_1.prototype.method = function () { };
+    __names(default_1.prototype, ["method"]);
     return default_1;
 }());
 exports.default = default_1;
diff --git a/tests/baselines/reference/es5ExportDefaultClassDeclaration3.js b/tests/baselines/reference/es5ExportDefaultClassDeclaration3.js
index 5c256022032fe..3799302bc1a9d 100644
--- a/tests/baselines/reference/es5ExportDefaultClassDeclaration3.js
+++ b/tests/baselines/reference/es5ExportDefaultClassDeclaration3.js
@@ -15,6 +15,20 @@ var t: typeof C = C;
 
 //// [es5ExportDefaultClassDeclaration3.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 var before = new C();
 var C = (function () {
@@ -23,6 +37,7 @@ var C = (function () {
     C.prototype.method = function () {
         return new C();
     };
+    __names(C.prototype, ["method"]);
     return C;
 }());
 exports.default = C;
diff --git a/tests/baselines/reference/es5ExportEqualsDts.js b/tests/baselines/reference/es5ExportEqualsDts.js
index b8d79efef94ef..7160e9849ae03 100644
--- a/tests/baselines/reference/es5ExportEqualsDts.js
+++ b/tests/baselines/reference/es5ExportEqualsDts.js
@@ -14,6 +14,20 @@ export = A
 
 //// [es5ExportEqualsDts.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -21,6 +35,7 @@ var A = (function () {
         var aVal;
         return aVal;
     };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 module.exports = A;
diff --git a/tests/baselines/reference/es5ModuleWithModuleGenAmd.js b/tests/baselines/reference/es5ModuleWithModuleGenAmd.js
index dc55545617d1f..a8e01c9889484 100644
--- a/tests/baselines/reference/es5ModuleWithModuleGenAmd.js
+++ b/tests/baselines/reference/es5ModuleWithModuleGenAmd.js
@@ -12,6 +12,20 @@ export class A
 }
 
 //// [es5ModuleWithModuleGenAmd.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     Object.defineProperty(exports, "__esModule", { value: true });
@@ -21,6 +35,7 @@ define(["require", "exports"], function (require, exports) {
         A.prototype.B = function () {
             return 42;
         };
+        __names(A.prototype, ["B"]);
         return A;
     }());
     exports.A = A;
diff --git a/tests/baselines/reference/es5ModuleWithModuleGenCommonjs.js b/tests/baselines/reference/es5ModuleWithModuleGenCommonjs.js
index 93056203f9b4e..c404174ff47e7 100644
--- a/tests/baselines/reference/es5ModuleWithModuleGenCommonjs.js
+++ b/tests/baselines/reference/es5ModuleWithModuleGenCommonjs.js
@@ -13,6 +13,20 @@ export class A
 
 //// [es5ModuleWithModuleGenCommonjs.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 var A = (function () {
     function A() {
@@ -20,6 +34,7 @@ var A = (function () {
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
 exports.A = A;
diff --git a/tests/baselines/reference/es5ModuleWithoutModuleGenTarget.js b/tests/baselines/reference/es5ModuleWithoutModuleGenTarget.js
index 89d11045ddac2..c5a273bb1a626 100644
--- a/tests/baselines/reference/es5ModuleWithoutModuleGenTarget.js
+++ b/tests/baselines/reference/es5ModuleWithoutModuleGenTarget.js
@@ -13,6 +13,20 @@ export class A
 
 //// [es5ModuleWithoutModuleGenTarget.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 var A = (function () {
     function A() {
@@ -20,6 +34,7 @@ var A = (function () {
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
 exports.A = A;
diff --git a/tests/baselines/reference/es5andes6module.js b/tests/baselines/reference/es5andes6module.js
index bfa260eaa3ca4..8cc74caacc73b 100644
--- a/tests/baselines/reference/es5andes6module.js
+++ b/tests/baselines/reference/es5andes6module.js
@@ -14,12 +14,27 @@ export default class A
 
 
 //// [es5andes6module.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.B = function () {
         return 42;
     };
+    __names(A.prototype, ["B"]);
     return A;
 }());
 export default A;
diff --git a/tests/baselines/reference/es6ClassTest.js b/tests/baselines/reference/es6ClassTest.js
index d727ab49a341a..a2845ab2b77d2 100644
--- a/tests/baselines/reference/es6ClassTest.js
+++ b/tests/baselines/reference/es6ClassTest.js
@@ -85,6 +85,20 @@ declare module AmbientMod {
 
 
 //// [es6ClassTest.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -101,6 +115,7 @@ var Bar = (function () {
     Bar.prototype.prop1 = function (x) {
         return x;
     };
+    __names(Bar.prototype, ["prop1"]);
     return Bar;
 }());
 // new-style class
@@ -119,6 +134,7 @@ var Foo = (function (_super) {
     }
     Foo.prototype.bar = function () { return 0; };
     Foo.prototype.boo = function (x) { return x; };
+    __names(Foo.prototype, ["bar", "boo"]);
     Foo.statVal = 0;
     return Foo;
 }(Bar));
diff --git a/tests/baselines/reference/es6ClassTest2.js b/tests/baselines/reference/es6ClassTest2.js
index 216a05ac2eb0b..bd2f40e2a631a 100644
--- a/tests/baselines/reference/es6ClassTest2.js
+++ b/tests/baselines/reference/es6ClassTest2.js
@@ -159,6 +159,20 @@ var ccwc = new ChildClassWithoutConstructor(1, "s");
 
 
 //// [es6ClassTest2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -178,6 +192,7 @@ var BasicMonster = (function () {
     BasicMonster.prototype.attack = function (target) {
         // WScript.Echo("Attacks " + target);
     };
+    __names(BasicMonster.prototype, ["attack"]);
     return BasicMonster;
 }());
 var m1 = new BasicMonster("1", 100);
@@ -214,6 +229,7 @@ var GetSetMonster = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(GetSetMonster.prototype, ["attack"]);
     return GetSetMonster;
 }());
 var m3 = new BasicMonster("1", 100);
@@ -230,6 +246,7 @@ var OverloadedMonster = (function () {
     OverloadedMonster.prototype.attack = function (target) {
         //WScript.Echo("Attacks " + target);
     };
+    __names(OverloadedMonster.prototype, ["attack"]);
     return OverloadedMonster;
 }());
 var m5 = new OverloadedMonster("1");
@@ -250,6 +267,7 @@ var SplatMonster = (function () {
             args[_i - 1] = arguments[_i];
         }
     };
+    __names(SplatMonster.prototype, ["roar"]);
     return SplatMonster;
 }());
 function foo() { return true; }
@@ -267,6 +285,7 @@ var SuperParent = (function () {
     };
     SuperParent.prototype.c = function () {
     };
+    __names(SuperParent.prototype, ["b", "c"]);
     return SuperParent;
 }());
 var SuperChild = (function (_super) {
@@ -280,6 +299,7 @@ var SuperChild = (function (_super) {
     SuperChild.prototype.c = function () {
         _super.prototype.c.call(this);
     };
+    __names(SuperChild.prototype, ["b", "c"]);
     return SuperChild;
 }(SuperParent));
 var Statics = (function () {
@@ -306,6 +326,7 @@ var Visibility = (function () {
     }
     Visibility.prototype.foo = function () { };
     Visibility.prototype.bar = function () { };
+    __names(Visibility.prototype, ["foo", "bar"]);
     return Visibility;
 }());
 var BaseClassWithConstructor = (function () {
diff --git a/tests/baselines/reference/es6ClassTest3.js b/tests/baselines/reference/es6ClassTest3.js
index daf6f63a2c18f..de7c83e590ee4 100644
--- a/tests/baselines/reference/es6ClassTest3.js
+++ b/tests/baselines/reference/es6ClassTest3.js
@@ -15,6 +15,20 @@ module M {
 }
 
 //// [es6ClassTest3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var Visibility = (function () {
@@ -26,6 +40,7 @@ var M;
         ;
         Visibility.prototype.bar = function () { };
         ;
+        __names(Visibility.prototype, ["foo", "bar"]);
         return Visibility;
     }());
 })(M || (M = {}));
diff --git a/tests/baselines/reference/es6DeclOrdering.js b/tests/baselines/reference/es6DeclOrdering.js
index b5dc55ebc9c72..eb3ebce16f4bc 100644
--- a/tests/baselines/reference/es6DeclOrdering.js
+++ b/tests/baselines/reference/es6DeclOrdering.js
@@ -17,6 +17,20 @@ class Bar {
 
 
 //// [es6DeclOrdering.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Bar = (function () {
     function Bar(store) {
         this._store = store; // this is an error for some reason? Unresolved symbol store
@@ -25,5 +39,6 @@ var Bar = (function () {
     Bar.prototype.foo = function () {
         return this._store.length;
     };
+    __names(Bar.prototype, ["foo"]);
     return Bar;
 }());
diff --git a/tests/baselines/reference/es6MemberScoping.js b/tests/baselines/reference/es6MemberScoping.js
index de442616dc3ae..46966bf9d149d 100644
--- a/tests/baselines/reference/es6MemberScoping.js
+++ b/tests/baselines/reference/es6MemberScoping.js
@@ -16,6 +16,20 @@ class Foo2 {
 
 
 //// [es6MemberScoping.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo(store) {
         this._store = store; // should be an error.
@@ -23,6 +37,7 @@ var Foo = (function () {
     Foo.prototype.foo = function () {
         return this._store.length;
     };
+    __names(Foo.prototype, ["foo"]);
     return Foo;
 }());
 var Foo2 = (function () {
diff --git a/tests/baselines/reference/es6modulekindWithES5Target.js b/tests/baselines/reference/es6modulekindWithES5Target.js
index b813bc01992b6..8e8ace8a7146e 100644
--- a/tests/baselines/reference/es6modulekindWithES5Target.js
+++ b/tests/baselines/reference/es6modulekindWithES5Target.js
@@ -20,6 +20,20 @@ export {E};
 
 
 //// [es6modulekindWithES5Target.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -31,6 +45,7 @@ var C = (function () {
         this.p = 1;
     }
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     C.s = 0;
     return C;
 }());
@@ -41,6 +56,7 @@ var D = (function () {
         this.p = 1;
     }
     D.prototype.method = function () { };
+    __names(D.prototype, ["method"]);
     D.s = 0;
     D = __decorate([
         foo
diff --git a/tests/baselines/reference/es6modulekindWithES5Target11.js b/tests/baselines/reference/es6modulekindWithES5Target11.js
index a89da173951f6..7a1d5908897ca 100644
--- a/tests/baselines/reference/es6modulekindWithES5Target11.js
+++ b/tests/baselines/reference/es6modulekindWithES5Target11.js
@@ -9,6 +9,20 @@ export default class C {
 }
 
 //// [es6modulekindWithES5Target11.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -22,6 +36,7 @@ var C = (function () {
     C_1 = C;
     C.x = function () { return C_1.y; };
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     C.y = 1;
     C = C_1 = __decorate([
         foo
diff --git a/tests/baselines/reference/es6modulekindWithES5Target2.js b/tests/baselines/reference/es6modulekindWithES5Target2.js
index a67bba11e2359..bf4537a66693e 100644
--- a/tests/baselines/reference/es6modulekindWithES5Target2.js
+++ b/tests/baselines/reference/es6modulekindWithES5Target2.js
@@ -7,11 +7,26 @@ export default class C {
 
 
 //// [es6modulekindWithES5Target2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
         this.p = 1;
     }
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     C.s = 0;
     return C;
 }());
diff --git a/tests/baselines/reference/es6modulekindWithES5Target3.js b/tests/baselines/reference/es6modulekindWithES5Target3.js
index 2a9778691a691..c30069cfedd18 100644
--- a/tests/baselines/reference/es6modulekindWithES5Target3.js
+++ b/tests/baselines/reference/es6modulekindWithES5Target3.js
@@ -8,6 +8,20 @@ export default class D {
 }
 
 //// [es6modulekindWithES5Target3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -19,6 +33,7 @@ var D = (function () {
         this.p = 1;
     }
     D.prototype.method = function () { };
+    __names(D.prototype, ["method"]);
     D.s = 0;
     D = __decorate([
         foo
diff --git a/tests/baselines/reference/escapedIdentifiers.js b/tests/baselines/reference/escapedIdentifiers.js
index 37dcb2f7798c6..f81e10040d8f7 100644
--- a/tests/baselines/reference/escapedIdentifiers.js
+++ b/tests/baselines/reference/escapedIdentifiers.js
@@ -130,6 +130,20 @@ l\u0061bel4:
     a .. \u0061
     z .. \u00za
 */
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // var decl
 var \u0061 = 1;
 a++;
@@ -185,6 +199,7 @@ var testClass = (function () {
         arg\u0033 = true;
         arg4 = 2;
     };
+    __names(testClass.prototype, ["func"]);
     return testClass;
 }());
 // constructors
diff --git a/tests/baselines/reference/exportPrivateType.js b/tests/baselines/reference/exportPrivateType.js
index efdd7cb8e6ee8..96ced78ac85b3 100644
--- a/tests/baselines/reference/exportPrivateType.js
+++ b/tests/baselines/reference/exportPrivateType.js
@@ -31,6 +31,20 @@ var y = foo.g; // Exported variable 'y' has or is using private type 'foo.C2'.
 
 
 //// [exportPrivateType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var foo;
 (function (foo) {
     var C1 = (function () {
@@ -42,6 +56,7 @@ var foo;
         function C2() {
         }
         C2.prototype.test = function () { return true; };
+        __names(C2.prototype, ["test"]);
         return C2;
     }());
 })(foo || (foo = {}));
diff --git a/tests/baselines/reference/expressionTypeNodeShouldError.js b/tests/baselines/reference/expressionTypeNodeShouldError.js
index 80f9f82145af1..c4f9180eb733c 100644
--- a/tests/baselines/reference/expressionTypeNodeShouldError.js
+++ b/tests/baselines/reference/expressionTypeNodeShouldError.js
@@ -48,6 +48,20 @@ type ItemType3 = true.typeof(nodes.item(0));
 
 
 //// [string.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -55,11 +69,26 @@ var C = (function () {
         var x;
         typeof (this.foo);
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var nodes = document.getElementsByTagName("li");
 typeof (nodes.item(0));
 //// [number.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C2 = (function () {
     function C2() {
     }
@@ -67,11 +96,26 @@ var C2 = (function () {
         var x;
         typeof (this.foo);
     };
+    __names(C2.prototype, ["foo"]);
     return C2;
 }());
 var nodes2 = document.getElementsByTagName("li");
 typeof (nodes.item(0));
 //// [boolean.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C3 = (function () {
     function C3() {
     }
@@ -79,6 +123,7 @@ var C3 = (function () {
         var x;
         typeof (this.foo);
     };
+    __names(C3.prototype, ["foo"]);
     return C3;
 }());
 var nodes3 = document.getElementsByTagName("li");
diff --git a/tests/baselines/reference/extendAndImplementTheSameBaseType.js b/tests/baselines/reference/extendAndImplementTheSameBaseType.js
index d2942220bf122..1a75cec7113bf 100644
--- a/tests/baselines/reference/extendAndImplementTheSameBaseType.js
+++ b/tests/baselines/reference/extendAndImplementTheSameBaseType.js
@@ -14,6 +14,20 @@ d.baz();
 d.foo;
 
 //// [extendAndImplementTheSameBaseType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -28,6 +42,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.bar = function () { };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
 var D = (function (_super) {
@@ -36,6 +51,7 @@ var D = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     D.prototype.baz = function () { };
+    __names(D.prototype, ["baz"]);
     return D;
 }(C));
 var c;
diff --git a/tests/baselines/reference/extendAndImplementTheSameBaseType2.js b/tests/baselines/reference/extendAndImplementTheSameBaseType2.js
index 40b3425966e89..eba1970df050a 100644
--- a/tests/baselines/reference/extendAndImplementTheSameBaseType2.js
+++ b/tests/baselines/reference/extendAndImplementTheSameBaseType2.js
@@ -17,6 +17,20 @@ var r3: string = d.bar();
 var r4: number = d.bar();
 
 //// [extendAndImplementTheSameBaseType2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -33,6 +47,7 @@ var C = (function () {
     C.prototype.bar = function () {
         return null;
     };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
 var D = (function (_super) {
@@ -41,6 +56,7 @@ var D = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     D.prototype.baz = function () { };
+    __names(D.prototype, ["baz"]);
     return D;
 }(C));
 var d = new D();
diff --git a/tests/baselines/reference/extendNonClassSymbol1.js b/tests/baselines/reference/extendNonClassSymbol1.js
index b4e59aa97115e..b0aee22cdfb6e 100644
--- a/tests/baselines/reference/extendNonClassSymbol1.js
+++ b/tests/baselines/reference/extendNonClassSymbol1.js
@@ -4,6 +4,20 @@ var x = A;
 class C extends x { } // error, could not find symbol xs
 
 //// [extendNonClassSymbol1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -18,6 +32,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var x = A;
diff --git a/tests/baselines/reference/extendsClauseAlreadySeen.js b/tests/baselines/reference/extendsClauseAlreadySeen.js
index f6e43d5ddc66a..3c4a9ea2b2f90 100644
--- a/tests/baselines/reference/extendsClauseAlreadySeen.js
+++ b/tests/baselines/reference/extendsClauseAlreadySeen.js
@@ -17,6 +17,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -28,5 +42,6 @@ var D = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     D.prototype.baz = function () { };
+    __names(D.prototype, ["baz"]);
     return D;
 }(C));
diff --git a/tests/baselines/reference/extendsClauseAlreadySeen2.js b/tests/baselines/reference/extendsClauseAlreadySeen2.js
index 99bccf4447981..d5ad5ba5a9883 100644
--- a/tests/baselines/reference/extendsClauseAlreadySeen2.js
+++ b/tests/baselines/reference/extendsClauseAlreadySeen2.js
@@ -17,6 +17,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -28,5 +42,6 @@ var D = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     D.prototype.baz = function () { };
+    __names(D.prototype, ["baz"]);
     return D;
 }(C));
diff --git a/tests/baselines/reference/externalModuleQualification.js b/tests/baselines/reference/externalModuleQualification.js
index 0402847a13a93..ca7d872918841 100644
--- a/tests/baselines/reference/externalModuleQualification.js
+++ b/tests/baselines/reference/externalModuleQualification.js
@@ -13,6 +13,20 @@ class NavigateAction {
 
 //// [externalModuleQualification.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 exports.ID = "test";
 var DiffEditor = (function () {
@@ -27,5 +41,6 @@ var NavigateAction = (function () {
     }
     NavigateAction.prototype.f = function (editor) {
     };
+    __names(NavigateAction.prototype, ["f"]);
     return NavigateAction;
 }());
diff --git a/tests/baselines/reference/fatArrowSelf.js b/tests/baselines/reference/fatArrowSelf.js
index db9aaa347dc39..ca49966076eda 100644
--- a/tests/baselines/reference/fatArrowSelf.js
+++ b/tests/baselines/reference/fatArrowSelf.js
@@ -25,6 +25,20 @@ module Consumer {
 }
 
 //// [fatArrowSelf.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Events;
 (function (Events) {
     var EventEmitter = (function () {
@@ -32,6 +46,7 @@ var Events;
         }
         EventEmitter.prototype.addListener = function (type, listener) {
         };
+        __names(EventEmitter.prototype, ["addListener"]);
         return EventEmitter;
     }());
     Events.EventEmitter = EventEmitter;
@@ -50,6 +65,7 @@ var Consumer;
         };
         EventEmitterConsummer.prototype.changed = function () {
         };
+        __names(EventEmitterConsummer.prototype, ["register", "changed"]);
         return EventEmitterConsummer;
     }());
 })(Consumer || (Consumer = {}));
diff --git a/tests/baselines/reference/flowInFinally1.js b/tests/baselines/reference/flowInFinally1.js
index 76769342c0191..a01f5db7f507e 100644
--- a/tests/baselines/reference/flowInFinally1.js
+++ b/tests/baselines/reference/flowInFinally1.js
@@ -15,10 +15,25 @@ try {
 }
 
 //// [flowInFinally1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.method = function () { };
+    __names(A.prototype, ["method"]);
     return A;
 }());
 var a = null;
diff --git a/tests/baselines/reference/fluentClasses.js b/tests/baselines/reference/fluentClasses.js
index f9c8181aa494a..72b4f8f1a425a 100644
--- a/tests/baselines/reference/fluentClasses.js
+++ b/tests/baselines/reference/fluentClasses.js
@@ -19,6 +19,20 @@ var z = c.foo().bar().baz();  // Fluent pattern
 
 
 //// [fluentClasses.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -35,6 +49,7 @@ var A = (function () {
     A.prototype.foo = function () {
         return this;
     };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -45,6 +60,7 @@ var B = (function (_super) {
     B.prototype.bar = function () {
         return this;
     };
+    __names(B.prototype, ["bar"]);
     return B;
 }(A));
 var C = (function (_super) {
@@ -55,6 +71,7 @@ var C = (function (_super) {
     C.prototype.baz = function () {
         return this;
     };
+    __names(C.prototype, ["baz"]);
     return C;
 }(B));
 var c;
diff --git a/tests/baselines/reference/for-inStatements.js b/tests/baselines/reference/for-inStatements.js
index 18ccb37b4169c..29e87cef0ab86 100644
--- a/tests/baselines/reference/for-inStatements.js
+++ b/tests/baselines/reference/for-inStatements.js
@@ -81,6 +81,20 @@ for (var x in Color.Blue) { }
 
 
 //// [for-inStatements.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -126,6 +140,7 @@ var A = (function () {
         for (var x in this.baz()) { }
         return null;
     };
+    __names(A.prototype, ["biz"]);
     return A;
 }());
 var B = (function (_super) {
@@ -141,6 +156,7 @@ var B = (function (_super) {
         for (var x in _super.prototype.biz.call(this)) { }
         return null;
     };
+    __names(B.prototype, ["boz"]);
     return B;
 }(A));
 var i;
diff --git a/tests/baselines/reference/for-inStatementsInvalid.js b/tests/baselines/reference/for-inStatementsInvalid.js
index d70da450f08cf..a83897717f3c6 100644
--- a/tests/baselines/reference/for-inStatementsInvalid.js
+++ b/tests/baselines/reference/for-inStatementsInvalid.js
@@ -64,6 +64,20 @@ for (var x in i[42]) { }
 
 
 //// [for-inStatementsInvalid.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -107,6 +121,7 @@ var A = (function () {
         for (var x in this.baz()) { }
         return null;
     };
+    __names(A.prototype, ["biz"]);
     return A;
 }());
 var B = (function (_super) {
@@ -122,6 +137,7 @@ var B = (function (_super) {
         for (var x in _super.prototype.biz.call(this)) { }
         return null;
     };
+    __names(B.prototype, ["boz"]);
     return B;
 }(A));
 var i;
diff --git a/tests/baselines/reference/forwardRefInClassProperties.js b/tests/baselines/reference/forwardRefInClassProperties.js
index 424d950055d2d..50e4251023803 100644
--- a/tests/baselines/reference/forwardRefInClassProperties.js
+++ b/tests/baselines/reference/forwardRefInClassProperties.js
@@ -16,6 +16,20 @@ class Test
 
 
 //// [forwardRefInClassProperties.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Test = (function () {
     function Test() {
         this._b = this._a; // undefined, no error/warning
@@ -25,6 +39,7 @@ var Test = (function () {
         var a = b; // Block-scoped variable 'b' used before its declaration
         var b = 3;
     };
+    __names(Test.prototype, ["method"]);
     Test._B = Test._A; // undefined, no error/warning
     Test._A = 3;
     return Test;
diff --git a/tests/baselines/reference/functionAndPropertyNameConflict.js b/tests/baselines/reference/functionAndPropertyNameConflict.js
index bd3b5b7243d8e..707a0287fd07c 100644
--- a/tests/baselines/reference/functionAndPropertyNameConflict.js
+++ b/tests/baselines/reference/functionAndPropertyNameConflict.js
@@ -7,6 +7,20 @@ class C65 {
 }
 
 //// [functionAndPropertyNameConflict.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C65 = (function () {
     function C65() {
     }
@@ -18,5 +32,6 @@ var C65 = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C65.prototype, ["aaaaa"]);
     return C65;
 }());
diff --git a/tests/baselines/reference/functionArgShadowing.js b/tests/baselines/reference/functionArgShadowing.js
index bae1365a789d9..8c2d0caf39f1a 100644
--- a/tests/baselines/reference/functionArgShadowing.js
+++ b/tests/baselines/reference/functionArgShadowing.js
@@ -15,16 +15,32 @@ class C {
 }
 
 //// [functionArgShadowing.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.bar = function () { };
+    __names(B.prototype, ["bar"]);
     return B;
 }());
 function foo(x) {
diff --git a/tests/baselines/reference/functionExpressionContextualTyping1.js b/tests/baselines/reference/functionExpressionContextualTyping1.js
index 9592af7138c43..849611a002337 100644
--- a/tests/baselines/reference/functionExpressionContextualTyping1.js
+++ b/tests/baselines/reference/functionExpressionContextualTyping1.js
@@ -59,6 +59,20 @@ class C<T, U> {
 //// [functionExpressionContextualTyping1.js]
 // When a function expression with no type parameters and no parameter type annotations 
 // is contextually typed (section 4.19) by a type T and a contextual signature S can be extracted from T
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var E;
 (function (E) {
     E[E["red"] = 0] = "red";
@@ -74,6 +88,7 @@ var Class = (function () {
     function Class() {
     }
     Class.prototype.foo = function () { };
+    __names(Class.prototype, ["foo"]);
     return Class;
 }());
 var a1 = function (a1) {
diff --git a/tests/baselines/reference/functionOverloadErrors.js b/tests/baselines/reference/functionOverloadErrors.js
index a07f04ae9a8be..f6d100d8a705c 100644
--- a/tests/baselines/reference/functionOverloadErrors.js
+++ b/tests/baselines/reference/functionOverloadErrors.js
@@ -119,6 +119,20 @@ function initExpr() { }
 
 
 //// [functionOverloadErrors.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function fn1() { }
 function fn2a() {
 }
@@ -140,6 +154,7 @@ var cls = (function () {
     }
     cls.prototype.f = function () { };
     cls.prototype.g = function () { };
+    __names(cls.prototype, ["f", "g"]);
     return cls;
 }());
 //Function overloads with differing export
diff --git a/tests/baselines/reference/functionOverloads5.js b/tests/baselines/reference/functionOverloads5.js
index f23c66f3bebef..0813b01dd6be3 100644
--- a/tests/baselines/reference/functionOverloads5.js
+++ b/tests/baselines/reference/functionOverloads5.js
@@ -6,9 +6,24 @@ class baz {
 
 
 //// [functionOverloads5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var baz = (function () {
     function baz() {
     }
     baz.prototype.foo = function (bar) { };
+    __names(baz.prototype, ["foo"]);
     return baz;
 }());
diff --git a/tests/baselines/reference/functionOverloads7.js b/tests/baselines/reference/functionOverloads7.js
index 4d807d57548ce..96789228b511f 100644
--- a/tests/baselines/reference/functionOverloads7.js
+++ b/tests/baselines/reference/functionOverloads7.js
@@ -11,6 +11,20 @@ class foo {
 
 
 //// [functionOverloads7.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var foo = (function () {
     function foo() {
     }
@@ -19,5 +33,6 @@ var foo = (function () {
         var foo = this.bar();
         foo = this.bar("test");
     };
+    __names(foo.prototype, ["bar", "n"]);
     return foo;
 }());
diff --git a/tests/baselines/reference/functionOverloadsOutOfOrder.js b/tests/baselines/reference/functionOverloadsOutOfOrder.js
index f675646fed76f..a1390f72d5b78 100644
--- a/tests/baselines/reference/functionOverloadsOutOfOrder.js
+++ b/tests/baselines/reference/functionOverloadsOutOfOrder.js
@@ -16,12 +16,27 @@ class e {
 }
 
 //// [functionOverloadsOutOfOrder.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var d = (function () {
     function d() {
     }
     d.prototype.foo = function (ns) {
         return ns.toString();
     };
+    __names(d.prototype, ["foo"]);
     return d;
 }());
 var e = (function () {
@@ -30,5 +45,6 @@ var e = (function () {
     e.prototype.foo = function (ns) {
         return ns.toString();
     };
+    __names(e.prototype, ["foo"]);
     return e;
 }());
diff --git a/tests/baselines/reference/functionSubtypingOfVarArgs.js b/tests/baselines/reference/functionSubtypingOfVarArgs.js
index a4b43c3a1a1b9..9f6911f65f1d3 100644
--- a/tests/baselines/reference/functionSubtypingOfVarArgs.js
+++ b/tests/baselines/reference/functionSubtypingOfVarArgs.js
@@ -15,6 +15,20 @@ class StringEvent extends EventBase { // should work
 
 
 //// [functionSubtypingOfVarArgs.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -32,6 +46,7 @@ var EventBase = (function () {
     EventBase.prototype.add = function (listener) {
         this._listeners.push(listener);
     };
+    __names(EventBase.prototype, ["add"]);
     return EventBase;
 }());
 var StringEvent = (function (_super) {
@@ -42,5 +57,6 @@ var StringEvent = (function (_super) {
     StringEvent.prototype.add = function (listener) {
         _super.prototype.add.call(this, listener);
     };
+    __names(StringEvent.prototype, ["add"]);
     return StringEvent;
 }(EventBase));
diff --git a/tests/baselines/reference/functionSubtypingOfVarArgs2.js b/tests/baselines/reference/functionSubtypingOfVarArgs2.js
index 829440c12d43d..e1d89699ab9d5 100644
--- a/tests/baselines/reference/functionSubtypingOfVarArgs2.js
+++ b/tests/baselines/reference/functionSubtypingOfVarArgs2.js
@@ -15,6 +15,20 @@ class StringEvent extends EventBase {
 
 
 //// [functionSubtypingOfVarArgs2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -32,6 +46,7 @@ var EventBase = (function () {
     EventBase.prototype.add = function (listener) {
         this._listeners.push(listener);
     };
+    __names(EventBase.prototype, ["add"]);
     return EventBase;
 }());
 var StringEvent = (function (_super) {
@@ -42,5 +57,6 @@ var StringEvent = (function (_super) {
     StringEvent.prototype.add = function (listener) {
         _super.prototype.add.call(this, listener);
     };
+    __names(StringEvent.prototype, ["add"]);
     return StringEvent;
 }(EventBase));
diff --git a/tests/baselines/reference/functionWithSameNameAsField.js b/tests/baselines/reference/functionWithSameNameAsField.js
index f4b328e4c5b5f..7a2d236d38af4 100644
--- a/tests/baselines/reference/functionWithSameNameAsField.js
+++ b/tests/baselines/reference/functionWithSameNameAsField.js
@@ -9,6 +9,20 @@ class TestProgressBar {
 
 
 //// [functionWithSameNameAsField.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var TestProgressBar = (function () {
     function TestProgressBar() {
     }
@@ -16,5 +30,6 @@ var TestProgressBar = (function () {
         this.total = total;
         return this;
     };
+    __names(TestProgressBar.prototype, ["total"]);
     return TestProgressBar;
 }());
diff --git a/tests/baselines/reference/functionsInClassExpressions.js b/tests/baselines/reference/functionsInClassExpressions.js
index 616e6a3251ca2..e2340728ee616 100644
--- a/tests/baselines/reference/functionsInClassExpressions.js
+++ b/tests/baselines/reference/functionsInClassExpressions.js
@@ -11,6 +11,20 @@ let Foo = class {
 }
 
 //// [functionsInClassExpressions.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function class_1() {
         var _this = this;
@@ -21,5 +35,6 @@ var Foo = (function () {
         this.bar++;
     }
     class_1.prototype.m = function () { return this.bar; };
+    __names(class_1.prototype, ["m"]);
     return class_1;
 }());
diff --git a/tests/baselines/reference/fuzzy.js b/tests/baselines/reference/fuzzy.js
index af2bda7433902..021a6366c4b59 100644
--- a/tests/baselines/reference/fuzzy.js
+++ b/tests/baselines/reference/fuzzy.js
@@ -31,6 +31,20 @@ module M {
 
 
 //// [fuzzy.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var C = (function () {
@@ -46,6 +60,7 @@ var M;
         C.prototype.worksToo = function () {
             return ({ oneI: this });
         };
+        __names(C.prototype, ["works", "doesntWork", "worksToo"]);
         return C;
     }());
     M.C = C;
diff --git a/tests/baselines/reference/genericArrayWithoutTypeAnnotation.js b/tests/baselines/reference/genericArrayWithoutTypeAnnotation.js
index 2a5177ca25566..534052822d084 100644
--- a/tests/baselines/reference/genericArrayWithoutTypeAnnotation.js
+++ b/tests/baselines/reference/genericArrayWithoutTypeAnnotation.js
@@ -8,10 +8,25 @@ class Bar {
 
 
 //// [genericArrayWithoutTypeAnnotation.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Bar = (function () {
     function Bar() {
     }
     Bar.prototype.getBar = function (foo) {
     };
+    __names(Bar.prototype, ["getBar"]);
     return Bar;
 }());
diff --git a/tests/baselines/reference/genericAssignmentCompatWithInterfaces1.js b/tests/baselines/reference/genericAssignmentCompatWithInterfaces1.js
index 81d65dbbbb419..ead801fa484eb 100644
--- a/tests/baselines/reference/genericAssignmentCompatWithInterfaces1.js
+++ b/tests/baselines/reference/genericAssignmentCompatWithInterfaces1.js
@@ -20,10 +20,25 @@ var a4: I<string> = <K<number>>z;
 
 
 //// [genericAssignmentCompatWithInterfaces1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.compareTo = function (other) { return 1; };
+    __names(A.prototype, ["compareTo"]);
     return A;
 }());
 var z = { x: new A() };
diff --git a/tests/baselines/reference/genericBaseClassLiteralProperty.js b/tests/baselines/reference/genericBaseClassLiteralProperty.js
index 0c3a5ee612988..9381c836cafcb 100644
--- a/tests/baselines/reference/genericBaseClassLiteralProperty.js
+++ b/tests/baselines/reference/genericBaseClassLiteralProperty.js
@@ -23,6 +23,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var BaseClass = (function () {
     function BaseClass() {
     }
@@ -37,5 +51,6 @@ var SubClass = (function (_super) {
         var x = this._getValue1();
         var y = this._getValue2();
     };
+    __names(SubClass.prototype, ["Error"]);
     return SubClass;
 }(BaseClass));
diff --git a/tests/baselines/reference/genericBaseClassLiteralProperty2.js b/tests/baselines/reference/genericBaseClassLiteralProperty2.js
index e2ef30f9ce834..ee60e740e8baf 100644
--- a/tests/baselines/reference/genericBaseClassLiteralProperty2.js
+++ b/tests/baselines/reference/genericBaseClassLiteralProperty2.js
@@ -26,6 +26,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var CollectionItem2 = (function () {
     function CollectionItem2() {
     }
@@ -45,5 +59,6 @@ var DataView2 = (function (_super) {
     DataView2.prototype.fillItems = function (item) {
         this._itemsByKey['dummy'] = item;
     };
+    __names(DataView2.prototype, ["fillItems"]);
     return DataView2;
 }(BaseCollection2));
diff --git a/tests/baselines/reference/genericCallTypeArgumentInference.js b/tests/baselines/reference/genericCallTypeArgumentInference.js
index 994b4a52e6096..9dd457b8a3359 100644
--- a/tests/baselines/reference/genericCallTypeArgumentInference.js
+++ b/tests/baselines/reference/genericCallTypeArgumentInference.js
@@ -93,6 +93,20 @@ var r11 = i.foo8(); // {}
 
 //// [genericCallTypeArgumentInference.js]
 // Basic type inference with generic calls, no errors expected
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(t) {
     return t;
 }
@@ -138,6 +152,7 @@ var C = (function () {
         var x;
         return x;
     };
+    __names(C.prototype, ["foo", "foo2", "foo3", "foo4", "foo5", "foo6", "foo7", "foo8"]);
     return C;
 }());
 var c = new C('', 1);
diff --git a/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js b/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js
index 3ccdb5b6b558b..46f8ae6b125e7 100644
--- a/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js
+++ b/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js
@@ -119,6 +119,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
@@ -191,6 +205,7 @@ var C = (function () {
         var x;
         return x;
     };
+    __names(C.prototype, ["foo", "foo2", "foo3", "foo4", "foo5", "foo6", "foo7", "foo8"]);
     return C;
 }());
 var c = new C(b, d1);
diff --git a/tests/baselines/reference/genericCallWithFixedArguments.js b/tests/baselines/reference/genericCallWithFixedArguments.js
index a207d5c6d1716..9667af15fc753 100644
--- a/tests/baselines/reference/genericCallWithFixedArguments.js
+++ b/tests/baselines/reference/genericCallWithFixedArguments.js
@@ -8,16 +8,32 @@ g<A, B>(7) // the parameter list is fixed, so this should not error
 
 
 //// [genericCallWithFixedArguments.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.bar = function () { };
+    __names(B.prototype, ["bar"]);
     return B;
 }());
 function g(x) { }
diff --git a/tests/baselines/reference/genericCallbacksAndClassHierarchy.js b/tests/baselines/reference/genericCallbacksAndClassHierarchy.js
index b7b9e35a5436f..f86b54dd49e31 100644
--- a/tests/baselines/reference/genericCallbacksAndClassHierarchy.js
+++ b/tests/baselines/reference/genericCallbacksAndClassHierarchy.js
@@ -34,6 +34,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var C1 = (function () {
@@ -66,6 +80,7 @@ var M;
             v.subscribe(f);
             v.subscribe(function (newValue) { });
         };
+        __names(D.prototype, ["_subscribe"]);
         return D;
     }());
     M.D = D;
diff --git a/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js b/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js
index b5c8f47bfd4b2..39abba1d602dd 100644
--- a/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js
+++ b/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js
@@ -76,6 +76,20 @@ class ViewModel<TValue> implements Contract<TValue> {
 
 
 //// [genericClassPropertyInheritanceSpecialization.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -97,6 +111,7 @@ var Portal;
                 }
                 Validator.prototype.destroy = function () { };
                 Validator.prototype._validate = function (value) { return 0; };
+                __names(Validator.prototype, ["destroy", "_validate"]);
                 return Validator;
             }());
             Validators.Validator = Validator;
diff --git a/tests/baselines/reference/genericClassWithFunctionTypedMemberArguments.js b/tests/baselines/reference/genericClassWithFunctionTypedMemberArguments.js
index 50510d88c248d..5c056f6d635e5 100644
--- a/tests/baselines/reference/genericClassWithFunctionTypedMemberArguments.js
+++ b/tests/baselines/reference/genericClassWithFunctionTypedMemberArguments.js
@@ -67,6 +67,20 @@ module WithCandidates {
 //// [genericClassWithFunctionTypedMemberArguments.js]
 // Generic functions used as arguments for function typed parameters are not used to make inferences from
 // Using function arguments, no errors expected
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var ImmediatelyFix;
 (function (ImmediatelyFix) {
     var C = (function () {
@@ -75,6 +89,7 @@ var ImmediatelyFix;
         C.prototype.foo = function (x) {
             return x(null);
         };
+        __names(C.prototype, ["foo"]);
         return C;
     }());
     var c = new C();
@@ -87,6 +102,7 @@ var ImmediatelyFix;
         C2.prototype.foo = function (x) {
             return x(null);
         };
+        __names(C2.prototype, ["foo"]);
         return C2;
     }());
     var c2 = new C2();
@@ -101,6 +117,7 @@ var WithCandidates;
         C.prototype.foo2 = function (x, cb) {
             return cb(x);
         };
+        __names(C.prototype, ["foo2"]);
         return C;
     }());
     var c;
@@ -113,6 +130,7 @@ var WithCandidates;
         C2.prototype.foo3 = function (x, cb, y) {
             return cb(x);
         };
+        __names(C2.prototype, ["foo3"]);
         return C2;
     }());
     var c2;
@@ -124,6 +142,7 @@ var WithCandidates;
         C3.prototype.foo3 = function (x, cb, y) {
             return cb(x);
         };
+        __names(C3.prototype, ["foo3"]);
         return C3;
     }());
     var c3;
diff --git a/tests/baselines/reference/genericClassWithObjectTypeArgsAndConstraints.js b/tests/baselines/reference/genericClassWithObjectTypeArgsAndConstraints.js
index 467675c3497f8..09598e634dda8 100644
--- a/tests/baselines/reference/genericClassWithObjectTypeArgsAndConstraints.js
+++ b/tests/baselines/reference/genericClassWithObjectTypeArgsAndConstraints.js
@@ -63,6 +63,20 @@ module Interface {
 //// [genericClassWithObjectTypeArgsAndConstraints.js]
 // Generic call with constraints infering type parameter from object member properties
 // No errors expected
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -87,6 +101,7 @@ var Class;
             var x;
             return x;
         };
+        __names(G.prototype, ["foo"]);
         return G;
     }());
     var c1 = new X();
@@ -101,6 +116,7 @@ var Class;
             var x;
             return x;
         };
+        __names(G2.prototype, ["foo2"]);
         return G2;
     }());
     var g2;
diff --git a/tests/baselines/reference/genericClassWithStaticFactory.js b/tests/baselines/reference/genericClassWithStaticFactory.js
index ee65f23c2f1a5..de507a4280da3 100644
--- a/tests/baselines/reference/genericClassWithStaticFactory.js
+++ b/tests/baselines/reference/genericClassWithStaticFactory.js
@@ -142,6 +142,20 @@ module Editor {
 }
 
 //// [genericClassWithStaticFactory.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Editor;
 (function (Editor) {
     var List = (function () {
@@ -229,6 +243,7 @@ var Editor;
             var entry = this.listFactory.MakeEntry(data);
             return this.insertEntryBefore(entry);
         };
+        __names(List.prototype, ["add", "count", "isEmpty", "first", "pushEntry", "push", "popEntry", "insertEntry", "insertAfter", "insertEntryBefore", "insertBefore"]);
         return List;
     }());
     Editor.List = List;
@@ -261,6 +276,7 @@ var Editor;
                 return entry;
             }
         };
+        __names(ListFactory.prototype, ["MakeHead", "MakeEntry", "RemoveEntry"]);
         return ListFactory;
     }());
     Editor.ListFactory = ListFactory;
diff --git a/tests/baselines/reference/genericClasses4.js b/tests/baselines/reference/genericClasses4.js
index ab3620d2d79f2..9322f68d0493d 100644
--- a/tests/baselines/reference/genericClasses4.js
+++ b/tests/baselines/reference/genericClasses4.js
@@ -18,6 +18,20 @@ class Vec2_T<A>
 }
 
 //// [genericClasses4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // once caused stack overflow
 var Vec2_T = (function () {
     function Vec2_T(x, y) {
@@ -36,5 +50,6 @@ var Vec2_T = (function () {
         var retval = new Vec2_T(x, y);
         return retval;
     };
+    __names(Vec2_T.prototype, ["fmap", "apply"]);
     return Vec2_T;
 }());
diff --git a/tests/baselines/reference/genericClassesInModule2.js b/tests/baselines/reference/genericClassesInModule2.js
index 738fa996cf785..36a0d4bcbff6d 100644
--- a/tests/baselines/reference/genericClassesInModule2.js
+++ b/tests/baselines/reference/genericClassesInModule2.js
@@ -21,6 +21,20 @@ export class B<T2> {
 
 
 //// [genericClassesInModule2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -32,6 +46,7 @@ define(["require", "exports"], function (require, exports) {
         A.prototype.AAA = function (callback) {
             var child = new B(this);
         };
+        __names(A.prototype, ["AAA"]);
         return A;
     }());
     exports.A = A;
diff --git a/tests/baselines/reference/genericCloduleInModule.js b/tests/baselines/reference/genericCloduleInModule.js
index 6164bfc0904c0..3b5e5696dc53d 100644
--- a/tests/baselines/reference/genericCloduleInModule.js
+++ b/tests/baselines/reference/genericCloduleInModule.js
@@ -13,6 +13,20 @@ var b: A.B<number>;
 b.foo();
 
 //// [genericCloduleInModule.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A;
 (function (A) {
     var B = (function () {
@@ -20,6 +34,7 @@ var A;
         }
         B.prototype.foo = function () { };
         B.bar = function () { };
+        __names(B.prototype, ["foo"]);
         return B;
     }());
     A.B = B;
diff --git a/tests/baselines/reference/genericCloduleInModule2.js b/tests/baselines/reference/genericCloduleInModule2.js
index 55a5507eed2c0..82aa1a219f061 100644
--- a/tests/baselines/reference/genericCloduleInModule2.js
+++ b/tests/baselines/reference/genericCloduleInModule2.js
@@ -16,6 +16,20 @@ var b: A.B;
 b.foo();
 
 //// [genericCloduleInModule2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A;
 (function (A) {
     var B = (function () {
@@ -23,6 +37,7 @@ var A;
         }
         B.prototype.foo = function () { };
         B.bar = function () { };
+        __names(B.prototype, ["foo"]);
         return B;
     }());
     A.B = B;
diff --git a/tests/baselines/reference/genericCloneReturnTypes.js b/tests/baselines/reference/genericCloneReturnTypes.js
index 6d301c008e6f9..9f7f95df4acda 100644
--- a/tests/baselines/reference/genericCloneReturnTypes.js
+++ b/tests/baselines/reference/genericCloneReturnTypes.js
@@ -26,6 +26,20 @@ b = b2;
 b = b3;
 
 //// [genericCloneReturnTypes.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Bar = (function () {
     function Bar(x) {
         this.size = x;
@@ -33,6 +47,7 @@ var Bar = (function () {
     Bar.prototype.clone = function () {
         return new Bar(this.size);
     };
+    __names(Bar.prototype, ["clone"]);
     return Bar;
 }());
 var b;
diff --git a/tests/baselines/reference/genericCloneReturnTypes2.js b/tests/baselines/reference/genericCloneReturnTypes2.js
index 1e908c4c865fd..d07b42f11634e 100644
--- a/tests/baselines/reference/genericCloneReturnTypes2.js
+++ b/tests/baselines/reference/genericCloneReturnTypes2.js
@@ -16,6 +16,20 @@ var c: MyList<string> = a.clone(); // bug was there was an error on this line
 var d: MyList<number> = a.clone(); // error
 
 //// [genericCloneReturnTypes2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var MyList = (function () {
     function MyList(n) {
         this.size = n;
@@ -24,6 +38,7 @@ var MyList = (function () {
     MyList.prototype.clone = function () {
         return new MyList(this.size);
     };
+    __names(MyList.prototype, ["clone"]);
     return MyList;
 }());
 var a;
diff --git a/tests/baselines/reference/genericConstraint1.js b/tests/baselines/reference/genericConstraint1.js
index 52ce01433575c..c996cfbffd8a0 100644
--- a/tests/baselines/reference/genericConstraint1.js
+++ b/tests/baselines/reference/genericConstraint1.js
@@ -9,12 +9,27 @@ var x = new C<number>();
 x.bar2<string>(2, "");
 
 //// [genericConstraint1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.bar2 = function (x, y) {
         return null;
     };
+    __names(C.prototype, ["bar2"]);
     return C;
 }());
 var x = new C();
diff --git a/tests/baselines/reference/genericConstraint2.js b/tests/baselines/reference/genericConstraint2.js
index 9056ec847d70f..928bc58ab291d 100644
--- a/tests/baselines/reference/genericConstraint2.js
+++ b/tests/baselines/reference/genericConstraint2.js
@@ -22,6 +22,20 @@ var b = new ComparableString("b");
 var c = compare<ComparableString>(a, b);
 
 //// [genericConstraint2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function compare(x, y) {
     if (x == null)
         return y == null ? 0 : -1;
@@ -36,6 +50,7 @@ var ComparableString = (function () {
     ComparableString.prototype.localeCompare = function (other) {
         return 0;
     };
+    __names(ComparableString.prototype, ["localeCompare"]);
     return ComparableString;
 }());
 var a = new ComparableString("a");
diff --git a/tests/baselines/reference/genericFunctionsWithOptionalParameters3.js b/tests/baselines/reference/genericFunctionsWithOptionalParameters3.js
index 7caa65b971b8b..d3e38d9962b8e 100644
--- a/tests/baselines/reference/genericFunctionsWithOptionalParameters3.js
+++ b/tests/baselines/reference/genericFunctionsWithOptionalParameters3.js
@@ -16,10 +16,25 @@ var r5 = utils.mapReduce(c, f1, f2);
 
 
 //// [genericFunctionsWithOptionalParameters3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Collection = (function () {
     function Collection() {
     }
     Collection.prototype.add = function (x) { };
+    __names(Collection.prototype, ["add"]);
     return Collection;
 }());
 var utils;
diff --git a/tests/baselines/reference/genericImplements.js b/tests/baselines/reference/genericImplements.js
index 1a67fb29ad817..811be4880ab9b 100644
--- a/tests/baselines/reference/genericImplements.js
+++ b/tests/baselines/reference/genericImplements.js
@@ -21,6 +21,20 @@ class Z implements I {
 } // { f: <T>() => T } 
 
 //// [genericImplements.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -38,6 +52,7 @@ var X = (function () {
     function X() {
     }
     X.prototype.f = function () { return undefined; };
+    __names(X.prototype, ["f"]);
     return X;
 }()); // { f: () => { b; } }
 // OK
@@ -45,6 +60,7 @@ var Y = (function () {
     function Y() {
     }
     Y.prototype.f = function () { return undefined; };
+    __names(Y.prototype, ["f"]);
     return Y;
 }()); // { f: () => { a; } }
 // OK
@@ -52,5 +68,6 @@ var Z = (function () {
     function Z() {
     }
     Z.prototype.f = function () { return undefined; };
+    __names(Z.prototype, ["f"]);
     return Z;
 }()); // { f: <T>() => T } 
diff --git a/tests/baselines/reference/genericInstanceOf.js b/tests/baselines/reference/genericInstanceOf.js
index 6d060a75fe196..b8572adc8dedb 100644
--- a/tests/baselines/reference/genericInstanceOf.js
+++ b/tests/baselines/reference/genericInstanceOf.js
@@ -12,6 +12,20 @@ class C<T> {
 }
 
 //// [genericInstanceOf.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(a, b) {
         this.a = a;
@@ -21,5 +35,6 @@ var C = (function () {
         if (this.a instanceof this.b) {
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/genericInterfaceImplementation.js b/tests/baselines/reference/genericInterfaceImplementation.js
index c68c3e0d22234..60f14af278bd1 100644
--- a/tests/baselines/reference/genericInterfaceImplementation.js
+++ b/tests/baselines/reference/genericInterfaceImplementation.js
@@ -17,6 +17,20 @@ class None<T> implements IOption<T>{
 
 
 //// [genericInterfaceImplementation.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var None = (function () {
     function None() {
     }
@@ -26,5 +40,6 @@ var None = (function () {
     None.prototype.flatten = function () {
         return new None();
     };
+    __names(None.prototype, ["get", "flatten"]);
     return None;
 }());
diff --git a/tests/baselines/reference/genericMemberFunction.js b/tests/baselines/reference/genericMemberFunction.js
index 61a9298eb7f85..ebc879aed2408 100644
--- a/tests/baselines/reference/genericMemberFunction.js
+++ b/tests/baselines/reference/genericMemberFunction.js
@@ -23,6 +23,20 @@ export class BuildResult<A, B, C>{
 
 
 //// [genericMemberFunction.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -32,6 +46,7 @@ define(["require", "exports"], function (require, exports) {
         BuildError.prototype.parent = function () {
             return undefined;
         };
+        __names(BuildError.prototype, ["parent"]);
         return BuildError;
     }());
     exports.BuildError = BuildError;
@@ -44,6 +59,7 @@ define(["require", "exports"], function (require, exports) {
         FileWithErrors.prototype.parent = function () {
             return undefined;
         };
+        __names(FileWithErrors.prototype, ["errors", "parent"]);
         return FileWithErrors;
     }());
     exports.FileWithErrors = FileWithErrors;
@@ -57,6 +73,7 @@ define(["require", "exports"], function (require, exports) {
                 _this.removeFile(each);
             });
         };
+        __names(BuildResult.prototype, ["merge"]);
         return BuildResult;
     }());
     exports.BuildResult = BuildResult;
diff --git a/tests/baselines/reference/genericObjectLitReturnType.js b/tests/baselines/reference/genericObjectLitReturnType.js
index e9b1ba2f60dae..e368018690bf5 100644
--- a/tests/baselines/reference/genericObjectLitReturnType.js
+++ b/tests/baselines/reference/genericObjectLitReturnType.js
@@ -12,10 +12,25 @@ t1.a = 5; // Should not error: t1 should have type {a: number}, instead has type
 
 
 //// [genericObjectLitReturnType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var X = (function () {
     function X() {
     }
     X.prototype.f = function (t) { return { a: t }; };
+    __names(X.prototype, ["f"]);
     return X;
 }());
 var x;
diff --git a/tests/baselines/reference/genericOfACloduleType1.js b/tests/baselines/reference/genericOfACloduleType1.js
index 1c9657ec8f166..df77fbfa97475 100644
--- a/tests/baselines/reference/genericOfACloduleType1.js
+++ b/tests/baselines/reference/genericOfACloduleType1.js
@@ -13,10 +13,25 @@ module M {
 var g2 = new G<M.C>() // was: error Type reference cannot refer to container 'M.C'.
 
 //// [genericOfACloduleType1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var G = (function () {
     function G() {
     }
     G.prototype.bar = function (x) { return x; };
+    __names(G.prototype, ["bar"]);
     return G;
 }());
 var M;
@@ -25,6 +40,7 @@ var M;
         function C() {
         }
         C.prototype.foo = function () { };
+        __names(C.prototype, ["foo"]);
         return C;
     }());
     M.C = C;
diff --git a/tests/baselines/reference/genericOfACloduleType2.js b/tests/baselines/reference/genericOfACloduleType2.js
index c96e3f4fa6db4..e7e748301c165 100644
--- a/tests/baselines/reference/genericOfACloduleType2.js
+++ b/tests/baselines/reference/genericOfACloduleType2.js
@@ -16,10 +16,25 @@ module N {
 }
 
 //// [genericOfACloduleType2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var G = (function () {
     function G() {
     }
     G.prototype.bar = function (x) { return x; };
+    __names(G.prototype, ["bar"]);
     return G;
 }());
 var M;
@@ -28,6 +43,7 @@ var M;
         function C() {
         }
         C.prototype.foo = function () { };
+        __names(C.prototype, ["foo"]);
         return C;
     }());
     M.C = C;
diff --git a/tests/baselines/reference/genericPrototypeProperty.js b/tests/baselines/reference/genericPrototypeProperty.js
index 77102b280a19a..0b02c6a43912a 100644
--- a/tests/baselines/reference/genericPrototypeProperty.js
+++ b/tests/baselines/reference/genericPrototypeProperty.js
@@ -10,10 +10,25 @@ var r2 = r.x
 var r3 = r.foo(null);
 
 //// [genericPrototypeProperty.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var r = C.prototype;
diff --git a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js
index 22886334aad31..570bbf372aaaf 100644
--- a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js
+++ b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js
@@ -27,6 +27,20 @@ module TypeScript2 {
 
 
 //// [genericRecursiveImplicitConstructorErrors2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -56,6 +70,7 @@ var TypeScript2;
         PullSymbol.prototype.getType = function () {
             return undefined;
         };
+        __names(PullSymbol.prototype, ["addOutgoingLink", "getType"]);
         return PullSymbol;
     }());
     TypeScript2.PullSymbol = PullSymbol;
diff --git a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js
index d0bf08113d2e3..66cf3dd3d3cd8 100644
--- a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js
+++ b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js
@@ -41,6 +41,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var TypeScript;
 (function (TypeScript) {
     var MemberName = (function () {
@@ -80,6 +94,7 @@ var TypeScript;
                 return TypeScript.MemberName.create(elementMemberName, "", "[]");
             }
         };
+        __names(PullTypeSymbol.prototype, ["toString", "getScopedNameEx"]);
         return PullTypeSymbol;
     }(PullSymbol));
     TypeScript.PullTypeSymbol = PullTypeSymbol;
diff --git a/tests/baselines/reference/genericReversingTypeParameters.js b/tests/baselines/reference/genericReversingTypeParameters.js
index 33f598a1642db..64a2360afe8c1 100644
--- a/tests/baselines/reference/genericReversingTypeParameters.js
+++ b/tests/baselines/reference/genericReversingTypeParameters.js
@@ -11,11 +11,26 @@ var i = b.inverse(); // used to get the type wrong here.
 var r2b = i.get(1); 
 
 //// [genericReversingTypeParameters.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var BiMap = (function () {
     function BiMap() {
     }
     BiMap.prototype.get = function (key) { return null; };
     BiMap.prototype.inverse = function () { return null; };
+    __names(BiMap.prototype, ["get", "inverse"]);
     return BiMap;
 }());
 var b = new BiMap();
diff --git a/tests/baselines/reference/genericReversingTypeParameters2.js b/tests/baselines/reference/genericReversingTypeParameters2.js
index 40102d790d91b..70e3efd024c6a 100644
--- a/tests/baselines/reference/genericReversingTypeParameters2.js
+++ b/tests/baselines/reference/genericReversingTypeParameters2.js
@@ -10,11 +10,26 @@ var i = b.inverse(); // used to get the type wrong here.
 var r2b = i.get(1); 
 
 //// [genericReversingTypeParameters2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var BiMap = (function () {
     function BiMap() {
     }
     BiMap.prototype.get = function (key) { return null; };
     BiMap.prototype.inverse = function () { return null; };
+    __names(BiMap.prototype, ["get", "inverse"]);
     return BiMap;
 }());
 var b = new BiMap();
diff --git a/tests/baselines/reference/genericSpecializations1.js b/tests/baselines/reference/genericSpecializations1.js
index 2aabf708a6f19..96e264287167f 100644
--- a/tests/baselines/reference/genericSpecializations1.js
+++ b/tests/baselines/reference/genericSpecializations1.js
@@ -16,21 +16,38 @@ class StringFoo3 implements IFoo<string> {
 }
 
 //// [genericSpecializations1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var IntFooBad = (function () {
     function IntFooBad() {
     }
     IntFooBad.prototype.foo = function (x) { return null; };
+    __names(IntFooBad.prototype, ["foo"]);
     return IntFooBad;
 }());
 var StringFoo2 = (function () {
     function StringFoo2() {
     }
     StringFoo2.prototype.foo = function (x) { return null; };
+    __names(StringFoo2.prototype, ["foo"]);
     return StringFoo2;
 }());
 var StringFoo3 = (function () {
     function StringFoo3() {
     }
     StringFoo3.prototype.foo = function (x) { return null; };
+    __names(StringFoo3.prototype, ["foo"]);
     return StringFoo3;
 }());
diff --git a/tests/baselines/reference/genericSpecializations2.js b/tests/baselines/reference/genericSpecializations2.js
index 6975575ec5ecc..73bfe79e0d097 100644
--- a/tests/baselines/reference/genericSpecializations2.js
+++ b/tests/baselines/reference/genericSpecializations2.js
@@ -20,29 +20,47 @@ class StringFoo3 implements IFoo<string> {
 
 
 //// [genericSpecializations2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var IFoo = (function () {
     function IFoo() {
     }
     IFoo.prototype.foo = function (x) {
         return null;
     };
+    __names(IFoo.prototype, ["foo"]);
     return IFoo;
 }());
 var IntFooBad = (function () {
     function IntFooBad() {
     }
     IntFooBad.prototype.foo = function (x) { return null; };
+    __names(IntFooBad.prototype, ["foo"]);
     return IntFooBad;
 }());
 var StringFoo2 = (function () {
     function StringFoo2() {
     }
     StringFoo2.prototype.foo = function (x) { return null; };
+    __names(StringFoo2.prototype, ["foo"]);
     return StringFoo2;
 }());
 var StringFoo3 = (function () {
     function StringFoo3() {
     }
     StringFoo3.prototype.foo = function (x) { return null; };
+    __names(StringFoo3.prototype, ["foo"]);
     return StringFoo3;
 }());
diff --git a/tests/baselines/reference/genericSpecializations3.js b/tests/baselines/reference/genericSpecializations3.js
index 03d07b6dff990..1c3ce72cc7b3b 100644
--- a/tests/baselines/reference/genericSpecializations3.js
+++ b/tests/baselines/reference/genericSpecializations3.js
@@ -36,12 +36,27 @@ class StringFoo3 implements IFoo<string> { // error
 var stringFoo3: StringFoo3;
 
 //// [genericSpecializations3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var iFoo;
 iFoo.foo(1);
 var IntFooBad = (function () {
     function IntFooBad() {
     }
     IntFooBad.prototype.foo = function (x) { return null; };
+    __names(IntFooBad.prototype, ["foo"]);
     return IntFooBad;
 }());
 var intFooBad;
@@ -49,6 +64,7 @@ var IntFoo = (function () {
     function IntFoo() {
     }
     IntFoo.prototype.foo = function (x) { return null; };
+    __names(IntFoo.prototype, ["foo"]);
     return IntFoo;
 }());
 var intFoo;
@@ -56,6 +72,7 @@ var StringFoo2 = (function () {
     function StringFoo2() {
     }
     StringFoo2.prototype.foo = function (x) { return null; };
+    __names(StringFoo2.prototype, ["foo"]);
     return StringFoo2;
 }());
 var stringFoo2;
@@ -66,6 +83,7 @@ var StringFoo3 = (function () {
     function StringFoo3() {
     }
     StringFoo3.prototype.foo = function (x) { return null; };
+    __names(StringFoo3.prototype, ["foo"]);
     return StringFoo3;
 }());
 var stringFoo3;
diff --git a/tests/baselines/reference/genericTypeAssertions1.js b/tests/baselines/reference/genericTypeAssertions1.js
index 904e696af489e..dc62289a75250 100644
--- a/tests/baselines/reference/genericTypeAssertions1.js
+++ b/tests/baselines/reference/genericTypeAssertions1.js
@@ -5,10 +5,25 @@ var r: A<string> = <A<number>>new A(); // error
 var r2: A<number> = <A<A<number>>>foo; // error
 
 //// [genericTypeAssertions1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var foo = new A();
diff --git a/tests/baselines/reference/genericTypeAssertions2.js b/tests/baselines/reference/genericTypeAssertions2.js
index 160967e83deb7..b4a489e8c65de 100644
--- a/tests/baselines/reference/genericTypeAssertions2.js
+++ b/tests/baselines/reference/genericTypeAssertions2.js
@@ -14,6 +14,20 @@ var r4: A<number> = <A<number>>new A();
 var r5: A<number> = <A<number>>[]; // error
 
 //// [genericTypeAssertions2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -28,6 +42,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -38,6 +53,7 @@ var B = (function (_super) {
     B.prototype.bar = function () {
         return null;
     };
+    __names(B.prototype, ["bar"]);
     return B;
 }(A));
 var foo = new A();
diff --git a/tests/baselines/reference/genericTypeAssertions4.js b/tests/baselines/reference/genericTypeAssertions4.js
index 991db3822acc1..783ee453c5f89 100644
--- a/tests/baselines/reference/genericTypeAssertions4.js
+++ b/tests/baselines/reference/genericTypeAssertions4.js
@@ -26,6 +26,20 @@ function foo2<T extends A>(x: T) {
 }
 
 //// [genericTypeAssertions4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -40,6 +54,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { return ""; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -48,6 +63,7 @@ var B = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     B.prototype.bar = function () { return 1; };
+    __names(B.prototype, ["bar"]);
     return B;
 }(A));
 var C = (function (_super) {
@@ -56,6 +72,7 @@ var C = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     C.prototype.baz = function () { return 1; };
+    __names(C.prototype, ["baz"]);
     return C;
 }(A));
 var a;
diff --git a/tests/baselines/reference/genericTypeAssertions6.js b/tests/baselines/reference/genericTypeAssertions6.js
index 069e567ab1083..a64f84c8be865 100644
--- a/tests/baselines/reference/genericTypeAssertions6.js
+++ b/tests/baselines/reference/genericTypeAssertions6.js
@@ -25,6 +25,20 @@ var b: B<Date, Date>;
 var c: A<Date, Date> = <A<Date, Date>>b;
 
 //// [genericTypeAssertions6.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -44,6 +58,7 @@ var A = (function () {
         x = y;
         y = x;
     };
+    __names(A.prototype, ["f"]);
     return A;
 }());
 var B = (function (_super) {
@@ -58,6 +73,7 @@ var B = (function (_super) {
         var d = new Date();
         var e = new Date();
     };
+    __names(B.prototype, ["g"]);
     return B;
 }(A));
 var b;
diff --git a/tests/baselines/reference/genericTypeConstraints.js b/tests/baselines/reference/genericTypeConstraints.js
index cbb03b683a82a..c2079ba9d027e 100644
--- a/tests/baselines/reference/genericTypeConstraints.js
+++ b/tests/baselines/reference/genericTypeConstraints.js
@@ -14,6 +14,20 @@ class BarExtended extends Bar<FooExtended> {
 }
 
 //// [genericTypeConstraints.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -28,6 +42,7 @@ var Foo = (function () {
     function Foo() {
     }
     Foo.prototype.fooMethod = function () { };
+    __names(Foo.prototype, ["fooMethod"]);
     return Foo;
 }());
 var FooExtended = (function () {
diff --git a/tests/baselines/reference/genericTypeReferencesRequireTypeArgs.js b/tests/baselines/reference/genericTypeReferencesRequireTypeArgs.js
index 8e8060194b028..00c626cbe06dc 100644
--- a/tests/baselines/reference/genericTypeReferencesRequireTypeArgs.js
+++ b/tests/baselines/reference/genericTypeReferencesRequireTypeArgs.js
@@ -12,10 +12,25 @@ var i2: I<C>; // should be an error
 
 
 //// [genericTypeReferencesRequireTypeArgs.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function () { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c1; // error
diff --git a/tests/baselines/reference/genericTypeWithCallableMembers.js b/tests/baselines/reference/genericTypeWithCallableMembers.js
index c1a28b384bb9e..b9a2b4633e3b0 100644
--- a/tests/baselines/reference/genericTypeWithCallableMembers.js
+++ b/tests/baselines/reference/genericTypeWithCallableMembers.js
@@ -13,6 +13,20 @@ class C<T extends Constructable> {
 
 
 //// [genericTypeWithCallableMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(data, data2) {
         this.data = data;
@@ -22,5 +36,6 @@ var C = (function () {
         var x = new this.data(); // no error
         var x2 = new this.data2(); // was error, shouldn't be
     };
+    __names(C.prototype, ["create"]);
     return C;
 }());
diff --git a/tests/baselines/reference/genericTypeWithNonGenericBaseMisMatch.js b/tests/baselines/reference/genericTypeWithNonGenericBaseMisMatch.js
index 3c3577b853ea9..4ddbbf64f0e6d 100644
--- a/tests/baselines/reference/genericTypeWithNonGenericBaseMisMatch.js
+++ b/tests/baselines/reference/genericTypeWithNonGenericBaseMisMatch.js
@@ -10,10 +10,25 @@ var i: I = x; // Should not be allowed -- type of 'f' is incompatible with 'I'
 
 
 //// [genericTypeWithNonGenericBaseMisMatch.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var X = (function () {
     function X() {
     }
     X.prototype.f = function (a) { };
+    __names(X.prototype, ["f"]);
     return X;
 }());
 var x = new X();
diff --git a/tests/baselines/reference/genericWithCallSignatures1.js b/tests/baselines/reference/genericWithCallSignatures1.js
index 95145470ac3a1..129c67f4f19ec 100644
--- a/tests/baselines/reference/genericWithCallSignatures1.js
+++ b/tests/baselines/reference/genericWithCallSignatures1.js
@@ -20,6 +20,20 @@ class MyClass {
 
 //// [genericWithCallSignatures_0.js]
 //// [genericWithCallSignatures_1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 ///<reference path="genericWithCallSignatures_0.ts"/>
 var MyClass = (function () {
     function MyClass() {
@@ -27,5 +41,6 @@ var MyClass = (function () {
     MyClass.prototype.myMethod = function () {
         var x = this.callableThing();
     };
+    __names(MyClass.prototype, ["myMethod"]);
     return MyClass;
 }());
diff --git a/tests/baselines/reference/genericWithIndexerOfTypeParameterType1.js b/tests/baselines/reference/genericWithIndexerOfTypeParameterType1.js
index b7c0ca2a0db60..dd1ca4bba5a3b 100644
--- a/tests/baselines/reference/genericWithIndexerOfTypeParameterType1.js
+++ b/tests/baselines/reference/genericWithIndexerOfTypeParameterType1.js
@@ -9,6 +9,20 @@ var lazyArray = new LazyArray<string>();
 var value: string = lazyArray.array()["test"]; // used to be an error
 
 //// [genericWithIndexerOfTypeParameterType1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var LazyArray = (function () {
     function LazyArray() {
         this.objects = {};
@@ -16,6 +30,7 @@ var LazyArray = (function () {
     LazyArray.prototype.array = function () {
         return this.objects;
     };
+    __names(LazyArray.prototype, ["array"]);
     return LazyArray;
 }());
 var lazyArray = new LazyArray();
diff --git a/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js b/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js
index 3f5e3dcfe8e6e..0c56f496e6e73 100644
--- a/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js
+++ b/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js
@@ -25,6 +25,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -40,6 +54,7 @@ define(["require", "exports"], function (require, exports) {
             return _super !== null && _super.apply(this, arguments) || this;
         }
         List.prototype.Bar = function () { };
+        __names(List.prototype, ["Bar"]);
         return List;
     }(Collection));
     exports.List = List;
diff --git a/tests/baselines/reference/genericWithOpenTypeParameters1.js b/tests/baselines/reference/genericWithOpenTypeParameters1.js
index 90ea23e43ef2e..a6e656349a6ee 100644
--- a/tests/baselines/reference/genericWithOpenTypeParameters1.js
+++ b/tests/baselines/reference/genericWithOpenTypeParameters1.js
@@ -12,10 +12,25 @@ var f4 = (x: B<number>) => { return x.foo(1); } // no error
 
 
 //// [genericWithOpenTypeParameters1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var x;
diff --git a/tests/baselines/reference/genericsWithDuplicateTypeParameters1.js b/tests/baselines/reference/genericsWithDuplicateTypeParameters1.js
index 43e933cd0fc72..c860a22889628 100644
--- a/tests/baselines/reference/genericsWithDuplicateTypeParameters1.js
+++ b/tests/baselines/reference/genericsWithDuplicateTypeParameters1.js
@@ -17,6 +17,20 @@ var m = {
 }
 
 //// [genericsWithDuplicateTypeParameters1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f() { }
 function f2(a, b) { return null; }
 var C = (function () {
@@ -24,6 +38,7 @@ var C = (function () {
     }
     C.prototype.f = function () { };
     C.prototype.f2 = function (a, b) { return null; };
+    __names(C.prototype, ["f", "f2"]);
     return C;
 }());
 var m = {
diff --git a/tests/baselines/reference/genericsWithoutTypeParameters1.js b/tests/baselines/reference/genericsWithoutTypeParameters1.js
index 443dd72da2334..ffc23aca680fd 100644
--- a/tests/baselines/reference/genericsWithoutTypeParameters1.js
+++ b/tests/baselines/reference/genericsWithoutTypeParameters1.js
@@ -34,10 +34,25 @@ function f<T>(x: T): A {
 }
 
 //// [genericsWithoutTypeParameters1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function () { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c1;
diff --git a/tests/baselines/reference/getAndSetAsMemberNames.js b/tests/baselines/reference/getAndSetAsMemberNames.js
index 0b0d8ff7e0131..7d04d2b76610b 100644
--- a/tests/baselines/reference/getAndSetAsMemberNames.js
+++ b/tests/baselines/reference/getAndSetAsMemberNames.js
@@ -22,6 +22,20 @@ class C5 {
 
 
 //// [getAndSetAsMemberNames.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1() {
         this.get = 1;
@@ -39,6 +53,7 @@ var C3 = (function () {
     C3.prototype.set = function (x) {
         return x + 1;
     };
+    __names(C3.prototype, ["set"]);
     return C3;
 }());
 var C4 = (function () {
@@ -57,5 +72,6 @@ var C5 = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C5.prototype, ["get"]);
     return C5;
 }());
diff --git a/tests/baselines/reference/getterControlFlowStrictNull.js b/tests/baselines/reference/getterControlFlowStrictNull.js
index c3f7e410d0a7c..b752ea5df4b42 100644
--- a/tests/baselines/reference/getterControlFlowStrictNull.js
+++ b/tests/baselines/reference/getterControlFlowStrictNull.js
@@ -19,6 +19,20 @@ class B {
 }
 
 //// [getterControlFlowStrictNull.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -28,6 +42,7 @@ var A = (function () {
         }
         // it does error here as expected
     };
+    __names(A.prototype, ["a"]);
     return A;
 }());
 var B = (function () {
diff --git a/tests/baselines/reference/getterThatThrowsShouldNotNeedReturn.js b/tests/baselines/reference/getterThatThrowsShouldNotNeedReturn.js
index e38058fbebf5c..aa92a19c81c55 100644
--- a/tests/baselines/reference/getterThatThrowsShouldNotNeedReturn.js
+++ b/tests/baselines/reference/getterThatThrowsShouldNotNeedReturn.js
@@ -10,6 +10,20 @@ class Greeter {
 
 
 //// [getterThatThrowsShouldNotNeedReturn.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Greeter = (function () {
     function Greeter() {
     }
@@ -23,5 +37,6 @@ var Greeter = (function () {
     Greeter.prototype.greeting = function () {
         throw ''; // should not raise an error
     };
+    __names(Greeter.prototype, ["greeting"]);
     return Greeter;
 }());
diff --git a/tests/baselines/reference/giant.js b/tests/baselines/reference/giant.js
index 71f78eeac53d8..94535444c75ea 100644
--- a/tests/baselines/reference/giant.js
+++ b/tests/baselines/reference/giant.js
@@ -681,6 +681,20 @@ export declare module eaM {
 }
 
 //// [giant.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -742,6 +756,7 @@ define(["require", "exports"], function (require, exports) {
             enumerable: true,
             configurable: true
         });
+        __names(C.prototype, ["pF", "rF", "pgF", "psF", "rgF", "rsF"]);
         return C;
     }());
     var M;
@@ -791,6 +806,7 @@ define(["require", "exports"], function (require, exports) {
                 enumerable: true,
                 configurable: true
             });
+            __names(C.prototype, ["pF", "rF", "pgF", "psF", "rgF", "rsF"]);
             return C;
         }());
         var M;
@@ -867,6 +883,7 @@ define(["require", "exports"], function (require, exports) {
                 enumerable: true,
                 configurable: true
             });
+            __names(eC.prototype, ["pF", "rF", "pgF", "psF", "rgF", "rsF"]);
             return eC;
         }());
         M_1.eC = eC;
@@ -946,6 +963,7 @@ define(["require", "exports"], function (require, exports) {
             enumerable: true,
             configurable: true
         });
+        __names(eC.prototype, ["pF", "rF", "pgF", "psF", "rgF", "rsF"]);
         return eC;
     }());
     exports.eC = eC;
@@ -996,6 +1014,7 @@ define(["require", "exports"], function (require, exports) {
                 enumerable: true,
                 configurable: true
             });
+            __names(C.prototype, ["pF", "rF", "pgF", "psF", "rgF", "rsF"]);
             return C;
         }());
         var M;
@@ -1072,6 +1091,7 @@ define(["require", "exports"], function (require, exports) {
                 enumerable: true,
                 configurable: true
             });
+            __names(eC.prototype, ["pF", "rF", "pgF", "psF", "rgF", "rsF"]);
             return eC;
         }());
         eM_1.eC = eC;
diff --git a/tests/baselines/reference/grammarAmbiguities1.js b/tests/baselines/reference/grammarAmbiguities1.js
index f650030fd44f2..338f5f5d8676a 100644
--- a/tests/baselines/reference/grammarAmbiguities1.js
+++ b/tests/baselines/reference/grammarAmbiguities1.js
@@ -11,16 +11,32 @@ f(g < A, B > +(7));
 
 
 //// [grammarAmbiguities1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.bar = function () { };
+    __names(B.prototype, ["bar"]);
     return B;
 }());
 function f(x) { return x; }
diff --git a/tests/baselines/reference/heterogeneousArrayAndOverloads.js b/tests/baselines/reference/heterogeneousArrayAndOverloads.js
index b9ef4bc4b6e6a..6e0630735a737 100644
--- a/tests/baselines/reference/heterogeneousArrayAndOverloads.js
+++ b/tests/baselines/reference/heterogeneousArrayAndOverloads.js
@@ -12,6 +12,20 @@ class arrTest {
 }
 
 //// [heterogeneousArrayAndOverloads.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var arrTest = (function () {
     function arrTest() {
     }
@@ -22,5 +36,6 @@ var arrTest = (function () {
         this.test([]);
         this.test([1, 2, "hi", 5]); // Error
     };
+    __names(arrTest.prototype, ["test", "callTest"]);
     return arrTest;
 }());
diff --git a/tests/baselines/reference/implementGenericWithMismatchedTypes.js b/tests/baselines/reference/implementGenericWithMismatchedTypes.js
index e9c3a0e0ffd43..b83d66f63431c 100644
--- a/tests/baselines/reference/implementGenericWithMismatchedTypes.js
+++ b/tests/baselines/reference/implementGenericWithMismatchedTypes.js
@@ -23,12 +23,27 @@ class C2<T> implements IFoo2<T> { // error
 //// [implementGenericWithMismatchedTypes.js]
 // no errors because in the derived types the best common type for T's value is Object
 // and that matches the original signature for assignability since we treat its T's as Object
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) {
         return null;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var C2 = (function () {
@@ -37,5 +52,6 @@ var C2 = (function () {
     C2.prototype.foo = function (x) {
         return null;
     };
+    __names(C2.prototype, ["foo"]);
     return C2;
 }());
diff --git a/tests/baselines/reference/implementInterfaceAnyMemberWithVoid.js b/tests/baselines/reference/implementInterfaceAnyMemberWithVoid.js
index ec2406f65fd9e..2cdd7fc51b637 100644
--- a/tests/baselines/reference/implementInterfaceAnyMemberWithVoid.js
+++ b/tests/baselines/reference/implementInterfaceAnyMemberWithVoid.js
@@ -10,10 +10,25 @@ class Bug implements I {
 
 
 //// [implementInterfaceAnyMemberWithVoid.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Bug = (function () {
     function Bug() {
     }
     Bug.prototype.foo = function (value) {
     };
+    __names(Bug.prototype, ["foo"]);
     return Bug;
 }());
diff --git a/tests/baselines/reference/implementsClauseAlreadySeen.js b/tests/baselines/reference/implementsClauseAlreadySeen.js
index 0aa3afe4b3e4f..9140fcf662cac 100644
--- a/tests/baselines/reference/implementsClauseAlreadySeen.js
+++ b/tests/baselines/reference/implementsClauseAlreadySeen.js
@@ -7,6 +7,20 @@ class D implements C implements C {
 }
 
 //// [implementsClauseAlreadySeen.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -16,5 +30,6 @@ var D = (function () {
     function D() {
     }
     D.prototype.baz = function () { };
+    __names(D.prototype, ["baz"]);
     return D;
 }());
diff --git a/tests/baselines/reference/implementsInClassExpression.js b/tests/baselines/reference/implementsInClassExpression.js
index eefd058ec2e2c..394cdd9d666d3 100644
--- a/tests/baselines/reference/implementsInClassExpression.js
+++ b/tests/baselines/reference/implementsInClassExpression.js
@@ -8,9 +8,24 @@ let cls = class implements Foo {
 }
 
 //// [implementsInClassExpression.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var cls = (function () {
     function class_1() {
     }
     class_1.prototype.doThing = function () { };
+    __names(class_1.prototype, ["doThing"]);
     return class_1;
 }());
diff --git a/tests/baselines/reference/implicitAnyAnyReturningFunction.js b/tests/baselines/reference/implicitAnyAnyReturningFunction.js
index 13fe799a852df..36c224daeab79 100644
--- a/tests/baselines/reference/implicitAnyAnyReturningFunction.js
+++ b/tests/baselines/reference/implicitAnyAnyReturningFunction.js
@@ -21,6 +21,20 @@ class C {
 
 
 //// [implicitAnyAnyReturningFunction.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function A() {
     return "";
 }
@@ -38,6 +52,7 @@ var C = (function () {
         var someLocal = {};
         return someLocal;
     };
+    __names(C.prototype, ["A", "B"]);
     return C;
 }());
 
diff --git a/tests/baselines/reference/implicitAnyCastedValue.js b/tests/baselines/reference/implicitAnyCastedValue.js
index 372f14647a179..d7041ebbe98a0 100644
--- a/tests/baselines/reference/implicitAnyCastedValue.js
+++ b/tests/baselines/reference/implicitAnyCastedValue.js
@@ -79,6 +79,20 @@ var bar3 = <any>0;
 var array = <any>[null, undefined];
 
 //// [implicitAnyCastedValue.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var x = function () {
     return 0; // this should not be an error
 };
@@ -103,6 +117,7 @@ var C = (function () {
     C.prototype.returnFooWithCase = function () {
         return this.foo; // this should not be an error
     };
+    __names(C.prototype, ["returnBarWithCase", "returnFooWithCase"]);
     return C;
 }());
 var C1 = (function () {
diff --git a/tests/baselines/reference/implicitAnyDeclareMemberWithoutType2.js b/tests/baselines/reference/implicitAnyDeclareMemberWithoutType2.js
index a3a2e3d4b3115..bcc503007f6b9 100644
--- a/tests/baselines/reference/implicitAnyDeclareMemberWithoutType2.js
+++ b/tests/baselines/reference/implicitAnyDeclareMemberWithoutType2.js
@@ -10,11 +10,26 @@ class C {
 
 
 //// [implicitAnyDeclareMemberWithoutType2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // this should be an error
 var C = (function () {
     function C(c1, c2, c3) {
         this.x = null; // error at "x"
     } // error at "c1, c2"
     C.prototype.funcOfC = function (f1, f2, f3) { }; // error at "f1,f2"
+    __names(C.prototype, ["funcOfC"]);
     return C;
 }());
diff --git a/tests/baselines/reference/implicitAnyFunctionReturnNullOrUndefined.js b/tests/baselines/reference/implicitAnyFunctionReturnNullOrUndefined.js
index 69740a0ad31ef..e568656653eb6 100644
--- a/tests/baselines/reference/implicitAnyFunctionReturnNullOrUndefined.js
+++ b/tests/baselines/reference/implicitAnyFunctionReturnNullOrUndefined.js
@@ -25,6 +25,20 @@ undefinedWidenFunction();
 
 
 //// [implicitAnyFunctionReturnNullOrUndefined.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // this should be an error
 function nullWidenFunction() { return null; } // error at "nullWidenFunction"
 function undefinedWidenFunction() { return undefined; } // error at "undefinedWidenFunction"
@@ -37,6 +51,7 @@ var C = (function () {
     C.prototype.underfinedWidenFuncOfC = function () {
         return undefined;
     };
+    __names(C.prototype, ["nullWidenFuncOfC", "underfinedWidenFuncOfC"]);
     return C;
 }());
 // this should not be an error
diff --git a/tests/baselines/reference/implicitAnyInCatch.js b/tests/baselines/reference/implicitAnyInCatch.js
index f833135f00d30..108ddbc0c5022 100644
--- a/tests/baselines/reference/implicitAnyInCatch.js
+++ b/tests/baselines/reference/implicitAnyInCatch.js
@@ -15,6 +15,20 @@ class C {
 
 
 //// [implicitAnyInCatch.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // this should not be an error
 try { }
 catch (error) {
@@ -28,5 +42,6 @@ var C = (function () {
         for (var x in this) {
         }
     };
+    __names(C.prototype, ["temp"]);
     return C;
 }());
diff --git a/tests/baselines/reference/importAndVariableDeclarationConflict2.js b/tests/baselines/reference/importAndVariableDeclarationConflict2.js
index 221fd20e7ecea..ef509edde86e0 100644
--- a/tests/baselines/reference/importAndVariableDeclarationConflict2.js
+++ b/tests/baselines/reference/importAndVariableDeclarationConflict2.js
@@ -12,6 +12,20 @@ class C {
 }
 
 //// [importAndVariableDeclarationConflict2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var m;
 (function (m_1) {
     m_1.m = '';
@@ -23,5 +37,6 @@ var C = (function () {
     C.prototype.foo = function () {
         var x = '';
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/importAsBaseClass.js b/tests/baselines/reference/importAsBaseClass.js
index 725390825c605..1ee5c4b339288 100644
--- a/tests/baselines/reference/importAsBaseClass.js
+++ b/tests/baselines/reference/importAsBaseClass.js
@@ -12,11 +12,26 @@ class Hello extends Greeter { }
 
 //// [importAsBaseClass_0.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Greeter = (function () {
     function Greeter() {
     }
     Greeter.prototype.greet = function () { return 'greet'; };
+    __names(Greeter.prototype, ["greet"]);
     return Greeter;
 }());
 exports.Greeter = Greeter;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES3AMD.js b/tests/baselines/reference/importCallExpressionAsyncES3AMD.js
index f0246f4ce5e86..5d24857a9050a 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES3AMD.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES3AMD.js
@@ -29,6 +29,20 @@ export const l = async () => {
 
 
 //// [test.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
     return new (P || (P = Promise))(function (resolve, reject) {
         function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -100,6 +114,7 @@ define(["require", "exports"], function (require, exports) {
                 });
             });
         };
+        __names(cl1.prototype, ["m"]);
         return cl1;
     }());
     exports.cl1 = cl1;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES3CJS.js b/tests/baselines/reference/importCallExpressionAsyncES3CJS.js
index 6b4006e05be0a..2713fd6eb5802 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES3CJS.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES3CJS.js
@@ -30,6 +30,20 @@ export const l = async () => {
 
 //// [test.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
     return new (P || (P = Promise))(function (resolve, reject) {
         function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -99,6 +113,7 @@ var cl1 = (function () {
             });
         });
     };
+    __names(cl1.prototype, ["m"]);
     return cl1;
 }());
 exports.cl1 = cl1;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES3System.js b/tests/baselines/reference/importCallExpressionAsyncES3System.js
index 542ce1080396f..76601c5dbd083 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES3System.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES3System.js
@@ -31,6 +31,20 @@ export const l = async () => {
 //// [test.js]
 System.register([], function (exports_1, context_1) {
     "use strict";
+    var __names = (this && this.__names) || (function() {
+        var name = Object.defineProperty ? (function(proto, name) {
+            Object.defineProperty(proto[name], 'name', { 
+                value: name, configurable: true, writable: false, enumerable: false
+            });
+        }) : (function(proto, name) {
+            proto[name].name = name;
+        });
+        return function (proto, keys) {
+            for (var i = keys.length - 1; i >= 0; i--) {
+                name(proto, keys[i])
+            }
+        };
+    })();
     var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
         return new (P || (P = Promise))(function (resolve, reject) {
             function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -104,6 +118,7 @@ System.register([], function (exports_1, context_1) {
                         });
                     });
                 };
+                __names(cl1.prototype, ["m"]);
                 return cl1;
             }());
             exports_1("cl1", cl1);
diff --git a/tests/baselines/reference/importCallExpressionAsyncES3UMD.js b/tests/baselines/reference/importCallExpressionAsyncES3UMD.js
index 4404cad5937a2..e02be9b98bd4e 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES3UMD.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES3UMD.js
@@ -29,6 +29,20 @@ export const l = async () => {
 
 
 //// [test.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
     return new (P || (P = Promise))(function (resolve, reject) {
         function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -109,6 +123,7 @@ var __generator = (this && this.__generator) || function (thisArg, body) {
                 });
             });
         };
+        __names(cl1.prototype, ["m"]);
         return cl1;
     }());
     exports.cl1 = cl1;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES5AMD.js b/tests/baselines/reference/importCallExpressionAsyncES5AMD.js
index 8e7b2005e787b..3b91349248fa4 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES5AMD.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES5AMD.js
@@ -29,6 +29,20 @@ export const l = async () => {
 
 
 //// [test.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
     return new (P || (P = Promise))(function (resolve, reject) {
         function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -100,6 +114,7 @@ define(["require", "exports"], function (require, exports) {
                 });
             });
         };
+        __names(cl1.prototype, ["m"]);
         return cl1;
     }());
     exports.cl1 = cl1;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES5CJS.js b/tests/baselines/reference/importCallExpressionAsyncES5CJS.js
index 2e04783fa89d6..fe1dcb55d62f8 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES5CJS.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES5CJS.js
@@ -30,6 +30,20 @@ export const l = async () => {
 
 //// [test.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
     return new (P || (P = Promise))(function (resolve, reject) {
         function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -99,6 +113,7 @@ var cl1 = (function () {
             });
         });
     };
+    __names(cl1.prototype, ["m"]);
     return cl1;
 }());
 exports.cl1 = cl1;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES5System.js b/tests/baselines/reference/importCallExpressionAsyncES5System.js
index b7d89d158b178..b7d79d0335d61 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES5System.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES5System.js
@@ -31,6 +31,20 @@ export const l = async () => {
 //// [test.js]
 System.register([], function (exports_1, context_1) {
     "use strict";
+    var __names = (this && this.__names) || (function() {
+        var name = Object.defineProperty ? (function(proto, name) {
+            Object.defineProperty(proto[name], 'name', { 
+                value: name, configurable: true, writable: false, enumerable: false
+            });
+        }) : (function(proto, name) {
+            proto[name].name = name;
+        });
+        return function (proto, keys) {
+            for (var i = keys.length - 1; i >= 0; i--) {
+                name(proto, keys[i])
+            }
+        };
+    })();
     var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
         return new (P || (P = Promise))(function (resolve, reject) {
             function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -104,6 +118,7 @@ System.register([], function (exports_1, context_1) {
                         });
                     });
                 };
+                __names(cl1.prototype, ["m"]);
                 return cl1;
             }());
             exports_1("cl1", cl1);
diff --git a/tests/baselines/reference/importCallExpressionAsyncES5UMD.js b/tests/baselines/reference/importCallExpressionAsyncES5UMD.js
index 102d78cfa0592..8dc8d47e9385c 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES5UMD.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES5UMD.js
@@ -29,6 +29,20 @@ export const l = async () => {
 
 
 //// [test.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
     return new (P || (P = Promise))(function (resolve, reject) {
         function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -109,6 +123,7 @@ var __generator = (this && this.__generator) || function (thisArg, body) {
                 });
             });
         };
+        __names(cl1.prototype, ["m"]);
         return cl1;
     }());
     exports.cl1 = cl1;
diff --git a/tests/baselines/reference/importCallExpressionES5AMD.js b/tests/baselines/reference/importCallExpressionES5AMD.js
index 8fa22d81dc9ae..fb3ffc29e67a6 100644
--- a/tests/baselines/reference/importCallExpressionES5AMD.js
+++ b/tests/baselines/reference/importCallExpressionES5AMD.js
@@ -36,6 +36,20 @@ define(["require", "exports"], function (require, exports) {
     exports.foo = foo;
 });
 //// [1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     Object.defineProperty(exports, "__esModule", { value: true });
@@ -54,6 +68,7 @@ define(["require", "exports"], function (require, exports) {
         C.prototype.method = function () {
             var loadAsync = new Promise(function (resolve_5, reject_5) { require(["./0"], resolve_5, reject_5); });
         };
+        __names(C.prototype, ["method"]);
         return C;
     }());
     var D = (function () {
@@ -62,6 +77,7 @@ define(["require", "exports"], function (require, exports) {
         D.prototype.method = function () {
             var loadAsync = new Promise(function (resolve_6, reject_6) { require(["./0"], resolve_6, reject_6); });
         };
+        __names(D.prototype, ["method"]);
         return D;
     }());
     exports.D = D;
diff --git a/tests/baselines/reference/importCallExpressionES5CJS.js b/tests/baselines/reference/importCallExpressionES5CJS.js
index 2cf5d3157e21b..f0efc3bb98593 100644
--- a/tests/baselines/reference/importCallExpressionES5CJS.js
+++ b/tests/baselines/reference/importCallExpressionES5CJS.js
@@ -35,6 +35,20 @@ function foo() { return "foo"; }
 exports.foo = foo;
 //// [1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 Promise.resolve().then(function () { return require("./0"); });
 var p1 = Promise.resolve().then(function () { return require("./0"); });
@@ -51,6 +65,7 @@ var C = (function () {
     C.prototype.method = function () {
         var loadAsync = Promise.resolve().then(function () { return require("./0"); });
     };
+    __names(C.prototype, ["method"]);
     return C;
 }());
 var D = (function () {
@@ -59,6 +74,7 @@ var D = (function () {
     D.prototype.method = function () {
         var loadAsync = Promise.resolve().then(function () { return require("./0"); });
     };
+    __names(D.prototype, ["method"]);
     return D;
 }());
 exports.D = D;
diff --git a/tests/baselines/reference/importCallExpressionES5System.js b/tests/baselines/reference/importCallExpressionES5System.js
index 3dabfce80c9ab..e54c182356a29 100644
--- a/tests/baselines/reference/importCallExpressionES5System.js
+++ b/tests/baselines/reference/importCallExpressionES5System.js
@@ -43,6 +43,20 @@ System.register([], function (exports_1, context_1) {
 //// [1.js]
 System.register([], function (exports_1, context_1) {
     "use strict";
+    var __names = (this && this.__names) || (function() {
+        var name = Object.defineProperty ? (function(proto, name) {
+            Object.defineProperty(proto[name], 'name', { 
+                value: name, configurable: true, writable: false, enumerable: false
+            });
+        }) : (function(proto, name) {
+            proto[name].name = name;
+        });
+        return function (proto, keys) {
+            for (var i = keys.length - 1; i >= 0; i--) {
+                name(proto, keys[i])
+            }
+        };
+    })();
     var __moduleName = context_1 && context_1.id;
     function foo() {
         var p2 = context_1.import("./0");
@@ -63,6 +77,7 @@ System.register([], function (exports_1, context_1) {
                 C.prototype.method = function () {
                     var loadAsync = context_1.import("./0");
                 };
+                __names(C.prototype, ["method"]);
                 return C;
             }());
             D = (function () {
@@ -71,6 +86,7 @@ System.register([], function (exports_1, context_1) {
                 D.prototype.method = function () {
                     var loadAsync = context_1.import("./0");
                 };
+                __names(D.prototype, ["method"]);
                 return D;
             }());
             exports_1("D", D);
diff --git a/tests/baselines/reference/importCallExpressionES5UMD.js b/tests/baselines/reference/importCallExpressionES5UMD.js
index 5727744aa7129..124ceae6cf6c2 100644
--- a/tests/baselines/reference/importCallExpressionES5UMD.js
+++ b/tests/baselines/reference/importCallExpressionES5UMD.js
@@ -44,6 +44,20 @@ export class D {
     exports.foo = foo;
 });
 //// [1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 (function (factory) {
     if (typeof module === "object" && typeof module.exports === "object") {
         var v = factory(require, exports);
@@ -71,6 +85,7 @@ export class D {
         C.prototype.method = function () {
             var loadAsync = __syncRequire ? Promise.resolve().then(function () { return require("./0"); }) : new Promise(function (resolve_5, reject_5) { require(["./0"], resolve_5, reject_5); });
         };
+        __names(C.prototype, ["method"]);
         return C;
     }());
     var D = (function () {
@@ -79,6 +94,7 @@ export class D {
         D.prototype.method = function () {
             var loadAsync = __syncRequire ? Promise.resolve().then(function () { return require("./0"); }) : new Promise(function (resolve_6, reject_6) { require(["./0"], resolve_6, reject_6); });
         };
+        __names(D.prototype, ["method"]);
         return D;
     }());
     exports.D = D;
diff --git a/tests/baselines/reference/importCallExpressionNoModuleKindSpecified.js b/tests/baselines/reference/importCallExpressionNoModuleKindSpecified.js
index 598056a32c61d..2ed528c9b6644 100644
--- a/tests/baselines/reference/importCallExpressionNoModuleKindSpecified.js
+++ b/tests/baselines/reference/importCallExpressionNoModuleKindSpecified.js
@@ -28,11 +28,26 @@ class C {
 
 //// [0.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var B = (function () {
     function B() {
     }
     B.prototype.print = function () { return "I am B"; };
+    __names(B.prototype, ["print"]);
     return B;
 }());
 exports.B = B;
@@ -44,6 +59,20 @@ exports.__esModule = true;
 function backup() { return "backup"; }
 exports.backup = backup;
 //// [2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
     return new (P || (P = Promise))(function (resolve, reject) {
         function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
@@ -103,5 +132,6 @@ var C = (function () {
             });
         }); });
     };
+    __names(C.prototype, ["method"]);
     return C;
 }());
diff --git a/tests/baselines/reference/importHelpers.js b/tests/baselines/reference/importHelpers.js
index 4fc7b99a813d3..e3eb19bd4869d 100644
--- a/tests/baselines/reference/importHelpers.js
+++ b/tests/baselines/reference/importHelpers.js
@@ -56,6 +56,7 @@ var C = (function () {
     }
     C.prototype.method = function (x) {
     };
+    tslib_1.__names(C.prototype, ["method"]);
     tslib_1.__decorate([
         tslib_1.__param(0, dec),
         tslib_1.__metadata("design:type", Function),
@@ -78,6 +79,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -107,6 +122,7 @@ var C = (function () {
     }
     C.prototype.method = function (x) {
     };
+    __names(C.prototype, ["method"]);
     __decorate([
         __param(0, dec),
         __metadata("design:type", Function),
diff --git a/tests/baselines/reference/importHelpersInIsolatedModules.js b/tests/baselines/reference/importHelpersInIsolatedModules.js
index 561bfebb351ca..43884c7284888 100644
--- a/tests/baselines/reference/importHelpersInIsolatedModules.js
+++ b/tests/baselines/reference/importHelpersInIsolatedModules.js
@@ -56,6 +56,7 @@ var C = (function () {
     }
     C.prototype.method = function (x) {
     };
+    tslib_1.__names(C.prototype, ["method"]);
     tslib_1.__decorate([
         tslib_1.__param(0, dec),
         tslib_1.__metadata("design:type", Function),
@@ -86,6 +87,7 @@ var C = (function () {
     }
     C.prototype.method = function (x) {
     };
+    tslib_1.__names(C.prototype, ["method"]);
     tslib_1.__decorate([
         tslib_1.__param(0, dec),
         tslib_1.__metadata("design:type", Function),
diff --git a/tests/baselines/reference/importHelpersNoHelpers.js b/tests/baselines/reference/importHelpersNoHelpers.js
index ec1b21d797c53..e791e2670d6cf 100644
--- a/tests/baselines/reference/importHelpersNoHelpers.js
+++ b/tests/baselines/reference/importHelpersNoHelpers.js
@@ -64,6 +64,7 @@ var C = (function () {
     }
     C.prototype.method = function (x) {
     };
+    tslib_1.__names(C.prototype, ["method"]);
     tslib_1.__decorate([
         tslib_1.__param(0, dec),
         tslib_1.__metadata("design:type", Function),
@@ -89,6 +90,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -118,6 +133,7 @@ var C = (function () {
     }
     C.prototype.method = function (x) {
     };
+    __names(C.prototype, ["method"]);
     __decorate([
         __param(0, dec),
         __metadata("design:type", Function),
diff --git a/tests/baselines/reference/importHelpersNoModule.js b/tests/baselines/reference/importHelpersNoModule.js
index 988bec04a427d..8206569c95aae 100644
--- a/tests/baselines/reference/importHelpersNoModule.js
+++ b/tests/baselines/reference/importHelpersNoModule.js
@@ -48,6 +48,7 @@ var C = (function () {
     }
     C.prototype.method = function (x) {
     };
+    tslib_1.__names(C.prototype, ["method"]);
     tslib_1.__decorate([
         tslib_1.__param(0, dec),
         tslib_1.__metadata("design:type", Function),
@@ -70,6 +71,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -99,6 +114,7 @@ var C = (function () {
     }
     C.prototype.method = function (x) {
     };
+    __names(C.prototype, ["method"]);
     __decorate([
         __param(0, dec),
         __metadata("design:type", Function),
diff --git a/tests/baselines/reference/import_reference-exported-alias.js b/tests/baselines/reference/import_reference-exported-alias.js
index b3d607a6943a6..d9960f7a4bcec 100644
--- a/tests/baselines/reference/import_reference-exported-alias.js
+++ b/tests/baselines/reference/import_reference-exported-alias.js
@@ -22,6 +22,20 @@ var x = new UserServices().getUserName();
 
 
 //// [file1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     var App;
@@ -34,6 +48,7 @@ define(["require", "exports"], function (require, exports) {
                 UserServices.prototype.getUserName = function () {
                     return "Bill Gates";
                 };
+                __names(UserServices.prototype, ["getUserName"]);
                 return UserServices;
             }());
             Services.UserServices = UserServices;
diff --git a/tests/baselines/reference/import_reference-to-type-alias.js b/tests/baselines/reference/import_reference-to-type-alias.js
index c6771d47bae30..78ff1c1742167 100644
--- a/tests/baselines/reference/import_reference-to-type-alias.js
+++ b/tests/baselines/reference/import_reference-to-type-alias.js
@@ -18,6 +18,20 @@ var x = new Services.UserServices().getUserName();
 
 
 //// [file1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -31,6 +45,7 @@ define(["require", "exports"], function (require, exports) {
                 UserServices.prototype.getUserName = function () {
                     return "Bill Gates";
                 };
+                __names(UserServices.prototype, ["getUserName"]);
                 return UserServices;
             }());
             Services.UserServices = UserServices;
diff --git a/tests/baselines/reference/importedAliasesInTypePositions.js b/tests/baselines/reference/importedAliasesInTypePositions.js
index b82ac22f4ede4..6e6db567731e7 100644
--- a/tests/baselines/reference/importedAliasesInTypePositions.js
+++ b/tests/baselines/reference/importedAliasesInTypePositions.js
@@ -19,6 +19,20 @@ export module ImportingModule {
 }
 
 //// [file1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -35,6 +49,7 @@ define(["require", "exports"], function (require, exports) {
                         }
                         ReferredTo.prototype.doSomething = function () {
                         };
+                        __names(ReferredTo.prototype, ["doSomething"]);
                         return ReferredTo;
                     }());
                     name.ReferredTo = ReferredTo;
diff --git a/tests/baselines/reference/inOperatorWithGeneric.js b/tests/baselines/reference/inOperatorWithGeneric.js
index eb2df95bbde5b..d06b2bcda9b2d 100644
--- a/tests/baselines/reference/inOperatorWithGeneric.js
+++ b/tests/baselines/reference/inOperatorWithGeneric.js
@@ -7,6 +7,20 @@ class C<T> {
 }
 
 //// [inOperatorWithGeneric.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -14,5 +28,6 @@ var C = (function () {
         for (var p in x) {
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/incompatibleAssignmentOfIdenticallyNamedTypes.js b/tests/baselines/reference/incompatibleAssignmentOfIdenticallyNamedTypes.js
index 677d177a4d01a..aba26303e18d4 100644
--- a/tests/baselines/reference/incompatibleAssignmentOfIdenticallyNamedTypes.js
+++ b/tests/baselines/reference/incompatibleAssignmentOfIdenticallyNamedTypes.js
@@ -10,11 +10,26 @@ class Foo<T> {
 
 
 //// [incompatibleAssignmentOfIdenticallyNamedTypes.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
     Foo.prototype.fn = function () {
         this.x = a;
     };
+    __names(Foo.prototype, ["fn"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/incompatibleTypes.js b/tests/baselines/reference/incompatibleTypes.js
index 6f786aee354e2..0d62a50d4281e 100644
--- a/tests/baselines/reference/incompatibleTypes.js
+++ b/tests/baselines/reference/incompatibleTypes.js
@@ -76,12 +76,27 @@ var fp1: () =>any = a => 0;
 
 
 //// [incompatibleTypes.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1() {
     }
     C1.prototype.p1 = function () {
         return "s";
     };
+    __names(C1.prototype, ["p1"]);
     return C1;
 }());
 var C2 = (function () {
@@ -90,6 +105,7 @@ var C2 = (function () {
     C2.prototype.p1 = function (n) {
         return 0;
     };
+    __names(C2.prototype, ["p1"]);
     return C2;
 }());
 var C3 = (function () {
diff --git a/tests/baselines/reference/incrementOnTypeParameter.js b/tests/baselines/reference/incrementOnTypeParameter.js
index 2f3de20c4193b..4d29b1ea332ce 100644
--- a/tests/baselines/reference/incrementOnTypeParameter.js
+++ b/tests/baselines/reference/incrementOnTypeParameter.js
@@ -10,6 +10,20 @@ class C<T> {
 
 
 //// [incrementOnTypeParameter.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -18,5 +32,6 @@ var C = (function () {
         for (var i, j = 0; j < 10; i++) {
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/indexTypeCheck.js b/tests/baselines/reference/indexTypeCheck.js
index bed15a58ae2d9..0f07864d33100 100644
--- a/tests/baselines/reference/indexTypeCheck.js
+++ b/tests/baselines/reference/indexTypeCheck.js
@@ -64,6 +64,20 @@ class Benchmark {
 }
 
 //// [indexTypeCheck.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var yellow;
 var blue;
 var s = "some string";
@@ -83,5 +97,6 @@ var Benchmark = (function () {
     Benchmark.prototype.addTimingFor = function (name, timing) {
         this.results[name] = this.results[name];
     };
+    __names(Benchmark.prototype, ["addTimingFor"]);
     return Benchmark;
 }());
diff --git a/tests/baselines/reference/indexedAccessRelation.js b/tests/baselines/reference/indexedAccessRelation.js
index 10384c9eacd28..a83dfec1618cb 100644
--- a/tests/baselines/reference/indexedAccessRelation.js
+++ b/tests/baselines/reference/indexedAccessRelation.js
@@ -22,6 +22,20 @@ class Comp<T extends Foo, S> extends Component<S & State<T>>
 //// [indexedAccessRelation.js]
 "use strict";
 // Repro from #14723
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -37,6 +51,7 @@ var Component = (function () {
     function Component() {
     }
     Component.prototype.setState = function (state) { };
+    __names(Component.prototype, ["setState"]);
     return Component;
 }());
 var Foo = (function () {
@@ -52,5 +67,6 @@ var Comp = (function (_super) {
     Comp.prototype.foo = function (a) {
         this.setState({ a: a });
     };
+    __names(Comp.prototype, ["foo"]);
     return Comp;
 }(Component));
diff --git a/tests/baselines/reference/indexedAccessTypeConstraints.js b/tests/baselines/reference/indexedAccessTypeConstraints.js
index 075e93dfa2353..8f1123fca31dd 100644
--- a/tests/baselines/reference/indexedAccessTypeConstraints.js
+++ b/tests/baselines/reference/indexedAccessTypeConstraints.js
@@ -38,6 +38,20 @@ function foo<C, T extends { content: C }>(x: C, y: T['content']) {
 //// [indexedAccessTypeConstraints.js]
 "use strict";
 // Repro from #14557
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -55,6 +69,7 @@ var Parent = (function () {
     Parent.prototype.getData = function () {
         return this.data;
     };
+    __names(Parent.prototype, ["getData"]);
     return Parent;
 }());
 var Foo = (function (_super) {
@@ -65,6 +80,7 @@ var Foo = (function (_super) {
     Foo.prototype.getContent = function () {
         return this.getData().get('content');
     };
+    __names(Foo.prototype, ["getContent"]);
     return Foo;
 }(Parent));
 exports.Foo = Foo;
@@ -76,6 +92,7 @@ var Bar = (function (_super) {
     Bar.prototype.getContent = function () {
         return this.getData().get('content');
     };
+    __names(Bar.prototype, ["getContent"]);
     return Bar;
 }(Parent));
 exports.Bar = Bar;
diff --git a/tests/baselines/reference/indexerReturningTypeParameter1.js b/tests/baselines/reference/indexerReturningTypeParameter1.js
index cdc1bdf19d1e5..0118a439178a1 100644
--- a/tests/baselines/reference/indexerReturningTypeParameter1.js
+++ b/tests/baselines/reference/indexerReturningTypeParameter1.js
@@ -14,6 +14,20 @@ var a2: c;
 var r2 = a2.groupBy();
 
 //// [indexerReturningTypeParameter1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var a;
 var r = a.groupBy();
 var c = (function () {
@@ -22,6 +36,7 @@ var c = (function () {
     c.prototype.groupBy = function () {
         return null;
     };
+    __names(c.prototype, ["groupBy"]);
     return c;
 }());
 var a2;
diff --git a/tests/baselines/reference/indexersInClassType.js b/tests/baselines/reference/indexersInClassType.js
index 9b085aa8fe279..26d10a88a8e6f 100644
--- a/tests/baselines/reference/indexersInClassType.js
+++ b/tests/baselines/reference/indexersInClassType.js
@@ -18,12 +18,27 @@ var r3 = r.a
 
 
 //// [indexersInClassType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.fn = function () {
         return this;
     };
+    __names(C.prototype, ["fn"]);
     return C;
 }());
 var c = new C();
diff --git a/tests/baselines/reference/inferFromGenericFunctionReturnTypes1.js b/tests/baselines/reference/inferFromGenericFunctionReturnTypes1.js
index 0c3cf4b0cbeb6..0254e63ab614e 100644
--- a/tests/baselines/reference/inferFromGenericFunctionReturnTypes1.js
+++ b/tests/baselines/reference/inferFromGenericFunctionReturnTypes1.js
@@ -73,6 +73,20 @@ testSet.transform(
 
 //// [inferFromGenericFunctionReturnTypes1.js]
 // Repro from #15680
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // This is a contrived class. We could do the same thing with Observables, etc.
 var SetOf = (function () {
     function SetOf() {
@@ -86,6 +100,7 @@ var SetOf = (function () {
     SetOf.prototype.forEach = function (fn) {
         this._store.forEach(function (a, i) { return fn(a, i); });
     };
+    __names(SetOf.prototype, ["add", "transform", "forEach"]);
     return SetOf;
 }());
 /* ... etc ... */
diff --git a/tests/baselines/reference/inferFromGenericFunctionReturnTypes2.js b/tests/baselines/reference/inferFromGenericFunctionReturnTypes2.js
index 3f95b10d08a08..697965123c5ab 100644
--- a/tests/baselines/reference/inferFromGenericFunctionReturnTypes2.js
+++ b/tests/baselines/reference/inferFromGenericFunctionReturnTypes2.js
@@ -96,6 +96,20 @@ const t2 = testSet.transform(
 
 
 //// [inferFromGenericFunctionReturnTypes2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var f1 = function (s) { return s.length; };
 var f2 = wrap(function (s) { return s.length; });
 var f3 = arrayize(wrap(function (s) { return s.length; }));
@@ -120,6 +134,7 @@ var SetOf = (function () {
     SetOf.prototype.forEach = function (fn) {
         this._store.forEach(function (a, i) { return fn(a, i); });
     };
+    __names(SetOf.prototype, ["add", "transform", "forEach"]);
     return SetOf;
 }());
 /* ... etc ... */
diff --git a/tests/baselines/reference/inferParameterWithMethodCallInitializer.js b/tests/baselines/reference/inferParameterWithMethodCallInitializer.js
index 5b33f78f766b8..8bbb7c9ee0098 100644
--- a/tests/baselines/reference/inferParameterWithMethodCallInitializer.js
+++ b/tests/baselines/reference/inferParameterWithMethodCallInitializer.js
@@ -21,6 +21,20 @@ class Weird {
 
 
 //// [inferParameterWithMethodCallInitializer.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function getNumber() {
     return 1;
 }
@@ -34,6 +48,7 @@ var Example = (function () {
         if (a === void 0) { a = this.getNumber(); }
         return a;
     };
+    __names(Example.prototype, ["getNumber", "doSomething"]);
     return Example;
 }());
 function weird(a) {
@@ -47,5 +62,6 @@ var Weird = (function () {
         if (a === void 0) { a = this.getNumber(); }
         return a;
     };
+    __names(Weird.prototype, ["doSomething"]);
     return Weird;
 }());
diff --git a/tests/baselines/reference/inferentialTypingUsingApparentType3.js b/tests/baselines/reference/inferentialTypingUsingApparentType3.js
index f637537536699..3d5863da48954 100644
--- a/tests/baselines/reference/inferentialTypingUsingApparentType3.js
+++ b/tests/baselines/reference/inferentialTypingUsingApparentType3.js
@@ -27,12 +27,27 @@ var person = new ObjectField({
 person.fields.id;
 
 //// [inferentialTypingUsingApparentType3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var CharField = (function () {
     function CharField() {
     }
     CharField.prototype.clean = function (input) {
         return "Yup";
     };
+    __names(CharField.prototype, ["clean"]);
     return CharField;
 }());
 var NumberField = (function () {
@@ -41,6 +56,7 @@ var NumberField = (function () {
     NumberField.prototype.clean = function (input) {
         return 123;
     };
+    __names(NumberField.prototype, ["clean"]);
     return NumberField;
 }());
 var ObjectField = (function () {
diff --git a/tests/baselines/reference/inferringClassMembersFromAssignments.js b/tests/baselines/reference/inferringClassMembersFromAssignments.js
index c6a6d0c4e27d0..e2dd0ec5d6aae 100644
--- a/tests/baselines/reference/inferringClassMembersFromAssignments.js
+++ b/tests/baselines/reference/inferringClassMembersFromAssignments.js
@@ -124,6 +124,20 @@ var stringOrNumberOrUndefined = C.inStaticNestedArrowFunction;
 
 
 //// [output.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
         var _this = this;
@@ -211,6 +225,7 @@ var C = (function () {
             this.inStaticSetter = "string";
         }
     };
+    __names(C.prototype, ["method", "get", "set"]);
     C.prop = function () {
         if (Math.random()) {
             _this.inStaticPropertyDeclaration = 0;
diff --git a/tests/baselines/reference/inheritance.js b/tests/baselines/reference/inheritance.js
index 48d96b10f9c50..c85f3d77f5432 100644
--- a/tests/baselines/reference/inheritance.js
+++ b/tests/baselines/reference/inheritance.js
@@ -45,6 +45,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var B1 = (function () {
     function B1() {
     }
@@ -86,6 +100,7 @@ var Good = (function () {
         this.f = function () { return 0; };
     }
     Good.prototype.g = function () { return 0; };
+    __names(Good.prototype, ["g"]);
     return Good;
 }());
 var Baad = (function (_super) {
@@ -95,5 +110,6 @@ var Baad = (function (_super) {
     }
     Baad.prototype.f = function () { return 0; };
     Baad.prototype.g = function (n) { return 0; };
+    __names(Baad.prototype, ["f", "g"]);
     return Baad;
 }(Good));
diff --git a/tests/baselines/reference/inheritance1.js b/tests/baselines/reference/inheritance1.js
index a00330e855688..6c9c479d38373 100644
--- a/tests/baselines/reference/inheritance1.js
+++ b/tests/baselines/reference/inheritance1.js
@@ -72,6 +72,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Control = (function () {
     function Control() {
     }
@@ -83,6 +97,7 @@ var Button = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Button.prototype.select = function () { };
+    __names(Button.prototype, ["select"]);
     return Button;
 }(Control));
 var TextBox = (function (_super) {
@@ -91,6 +106,7 @@ var TextBox = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     TextBox.prototype.select = function () { };
+    __names(TextBox.prototype, ["select"]);
     return TextBox;
 }(Control));
 var ImageBase = (function (_super) {
@@ -111,12 +127,14 @@ var Locations = (function () {
     function Locations() {
     }
     Locations.prototype.select = function () { };
+    __names(Locations.prototype, ["select"]);
     return Locations;
 }());
 var Locations1 = (function () {
     function Locations1() {
     }
     Locations1.prototype.select = function () { };
+    __names(Locations1.prototype, ["select"]);
     return Locations1;
 }());
 var sc;
diff --git a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js
index 52ab48573fd38..7bd14f8adb699 100644
--- a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js
+++ b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js
@@ -11,6 +11,20 @@ class C extends B {
 
 
 //// [inheritanceGrandParentPrivateMemberCollision.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -25,6 +39,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.myMethod = function () { };
+    __names(A.prototype, ["myMethod"]);
     return A;
 }());
 var B = (function (_super) {
@@ -40,5 +55,6 @@ var C = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     C.prototype.myMethod = function () { };
+    __names(C.prototype, ["myMethod"]);
     return C;
 }(B));
diff --git a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js
index c64a0e4259c6c..9e0a47e12aba1 100644
--- a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js
+++ b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js
@@ -11,6 +11,20 @@ class C extends B {
 
 
 //// [inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -25,6 +39,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.myMethod = function () { };
+    __names(A.prototype, ["myMethod"]);
     return A;
 }());
 var B = (function (_super) {
@@ -40,5 +55,6 @@ var C = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     C.prototype.myMethod = function () { };
+    __names(C.prototype, ["myMethod"]);
     return C;
 }(B));
diff --git a/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js b/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js
index 9ac0fe1859250..143a44aedac3d 100644
--- a/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js
+++ b/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js
@@ -11,6 +11,20 @@ class C extends B {
 
 
 //// [inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -25,6 +39,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.myMethod = function () { };
+    __names(A.prototype, ["myMethod"]);
     return A;
 }());
 var B = (function (_super) {
@@ -40,5 +55,6 @@ var C = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     C.prototype.myMethod = function () { };
+    __names(C.prototype, ["myMethod"]);
     return C;
 }(B));
diff --git a/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js b/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js
index 3fc6417afafe4..6e69db49c21f9 100644
--- a/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js
@@ -15,6 +15,20 @@ class b extends a {
 }
 
 //// [inheritanceMemberAccessorOverridingMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -31,6 +45,7 @@ var a = (function () {
     a.prototype.x = function () {
         return "20";
     };
+    __names(a.prototype, ["x"]);
     return a;
 }());
 var b = (function (_super) {
diff --git a/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js b/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js
index 93b72b73c8b0b..9a6406f0fac74 100644
--- a/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js
+++ b/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js
@@ -25,6 +25,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var a = (function () {
     function a() {
     }
@@ -47,5 +61,6 @@ var b = (function (_super) {
     b.prototype.x = function () {
         return "20";
     };
+    __names(b.prototype, ["x"]);
     return b;
 }(a));
diff --git a/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js b/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js
index 0f189aa50cc97..8f8053a4093bd 100644
--- a/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js
@@ -12,6 +12,20 @@ class b extends a {
 }
 
 //// [inheritanceMemberFuncOverridingMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -28,6 +42,7 @@ var a = (function () {
     a.prototype.x = function () {
         return "10";
     };
+    __names(a.prototype, ["x"]);
     return a;
 }());
 var b = (function (_super) {
@@ -38,5 +53,6 @@ var b = (function (_super) {
     b.prototype.x = function () {
         return "20";
     };
+    __names(b.prototype, ["x"]);
     return b;
 }(a));
diff --git a/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js b/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js
index 996138a53d922..cd33c1c8f8a4d 100644
--- a/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js
+++ b/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js
@@ -20,6 +20,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var a = (function () {
     function a() {
     }
@@ -33,5 +47,6 @@ var b = (function (_super) {
     b.prototype.x = function () {
         return "20";
     };
+    __names(b.prototype, ["x"]);
     return b;
 }(a));
diff --git a/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js b/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js
index c7c6c84f9d024..de55945632a41 100644
--- a/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js
@@ -10,6 +10,20 @@ class b extends a {
 }
 
 //// [inheritanceMemberPropertyOverridingMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -26,6 +40,7 @@ var a = (function () {
     a.prototype.x = function () {
         return "20";
     };
+    __names(a.prototype, ["x"]);
     return a;
 }());
 var b = (function (_super) {
diff --git a/tests/baselines/reference/innerAliases2.js b/tests/baselines/reference/innerAliases2.js
index 6ac0a57a484ca..8ca8d8cbf3f5c 100644
--- a/tests/baselines/reference/innerAliases2.js
+++ b/tests/baselines/reference/innerAliases2.js
@@ -20,6 +20,20 @@ module consumer {
 
 
 //// [innerAliases2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var _provider;
 (function (_provider) {
     var UsefulClass = (function () {
@@ -27,6 +41,7 @@ var _provider;
         }
         UsefulClass.prototype.foo = function () {
         };
+        __names(UsefulClass.prototype, ["foo"]);
         return UsefulClass;
     }());
     _provider.UsefulClass = UsefulClass;
diff --git a/tests/baselines/reference/innerTypeParameterShadowingOuterOne2.js b/tests/baselines/reference/innerTypeParameterShadowingOuterOne2.js
index 02b0ccfb382a4..1861ed2c198a6 100644
--- a/tests/baselines/reference/innerTypeParameterShadowingOuterOne2.js
+++ b/tests/baselines/reference/innerTypeParameterShadowingOuterOne2.js
@@ -40,6 +40,20 @@ class C2<T extends Date, U extends Date> {
 //// [innerTypeParameterShadowingOuterOne2.js]
 // inner type parameters shadow outer ones of the same name
 // no errors expected
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -51,6 +65,7 @@ var C = (function () {
         var x;
         x.getDate();
     };
+    __names(C.prototype, ["g", "h"]);
     return C;
 }());
 var C2 = (function () {
@@ -64,6 +79,7 @@ var C2 = (function () {
         var x;
         x.getDate();
     };
+    __names(C2.prototype, ["g", "h"]);
     return C2;
 }());
 //class C2<T extends Date, U extends T> {
diff --git a/tests/baselines/reference/instanceAndStaticDeclarations1.js b/tests/baselines/reference/instanceAndStaticDeclarations1.js
index 093e9c15cc8ea..9e15065516394 100644
--- a/tests/baselines/reference/instanceAndStaticDeclarations1.js
+++ b/tests/baselines/reference/instanceAndStaticDeclarations1.js
@@ -14,6 +14,20 @@ class Point {
 
 //// [instanceAndStaticDeclarations1.js]
 // from spec
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Point = (function () {
     function Point(x, y) {
         this.x = x;
@@ -25,6 +39,7 @@ var Point = (function () {
         return Math.sqrt(dx * dx + dy * dy);
     };
     Point.distance = function (p1, p2) { return p1.distance(p2); };
+    __names(Point.prototype, ["distance"]);
     Point.origin = new Point(0, 0);
     return Point;
 }());
diff --git a/tests/baselines/reference/instanceMemberAssignsToClassPrototype.js b/tests/baselines/reference/instanceMemberAssignsToClassPrototype.js
index d6dc08f38507a..822d838a74395 100644
--- a/tests/baselines/reference/instanceMemberAssignsToClassPrototype.js
+++ b/tests/baselines/reference/instanceMemberAssignsToClassPrototype.js
@@ -13,6 +13,20 @@ class C {
 }
 
 //// [instanceMemberAssignsToClassPrototype.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -25,5 +39,6 @@ var C = (function () {
         C.prototype.bar = function (x) { return 1; }; // ok
         return 1;
     };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js b/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js
index 44c781c8c9824..5927555f389da 100644
--- a/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js
+++ b/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js
@@ -43,6 +43,20 @@ module Generic {
 }
 
 //// [instancePropertiesInheritedIntoClassType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -69,6 +83,7 @@ var NonGeneric;
             configurable: true
         });
         C.prototype.fn = function () { return this; };
+        __names(C.prototype, ["fn"]);
         return C;
     }());
     var D = (function (_super) {
@@ -101,6 +116,7 @@ var Generic;
             configurable: true
         });
         C.prototype.fn = function () { return this; };
+        __names(C.prototype, ["fn"]);
         return C;
     }());
     var D = (function (_super) {
diff --git a/tests/baselines/reference/instancePropertyInClassType.js b/tests/baselines/reference/instancePropertyInClassType.js
index ee447aa52332a..56b1b7c9e3846 100644
--- a/tests/baselines/reference/instancePropertyInClassType.js
+++ b/tests/baselines/reference/instancePropertyInClassType.js
@@ -39,6 +39,20 @@ module Generic {
 }
 
 //// [instancePropertyInClassType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var NonGeneric;
 (function (NonGeneric) {
     var C = (function () {
@@ -55,6 +69,7 @@ var NonGeneric;
             configurable: true
         });
         C.prototype.fn = function () { return this; };
+        __names(C.prototype, ["fn"]);
         return C;
     }());
     var c = new C(1, 2);
@@ -80,6 +95,7 @@ var Generic;
             configurable: true
         });
         C.prototype.fn = function () { return this; };
+        __names(C.prototype, ["fn"]);
         return C;
     }());
     var c = new C(1, '');
diff --git a/tests/baselines/reference/instanceofOperatorWithInvalidOperands.js b/tests/baselines/reference/instanceofOperatorWithInvalidOperands.js
index 90badcf8e9215..4155be5c42fc5 100644
--- a/tests/baselines/reference/instanceofOperatorWithInvalidOperands.js
+++ b/tests/baselines/reference/instanceofOperatorWithInvalidOperands.js
@@ -47,10 +47,25 @@ var rb10 = x instanceof o3;
 var rc1 = '' instanceof {};
 
 //// [instanceofOperatorWithInvalidOperands.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var x;
diff --git a/tests/baselines/reference/instantiatedBaseTypeConstraints.js b/tests/baselines/reference/instantiatedBaseTypeConstraints.js
index c333ed36e1fdf..ff591f865515a 100644
--- a/tests/baselines/reference/instantiatedBaseTypeConstraints.js
+++ b/tests/baselines/reference/instantiatedBaseTypeConstraints.js
@@ -12,10 +12,25 @@ class Bar implements Foo<Bar, string> {
 
 
 //// [instantiatedBaseTypeConstraints.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Bar = (function () {
     function Bar() {
     }
     Bar.prototype.foo = function (bar) {
     };
+    __names(Bar.prototype, ["foo"]);
     return Bar;
 }());
diff --git a/tests/baselines/reference/instantiatedReturnTypeContravariance.js b/tests/baselines/reference/instantiatedReturnTypeContravariance.js
index 52f96561f2018..9456ecbbeb113 100644
--- a/tests/baselines/reference/instantiatedReturnTypeContravariance.js
+++ b/tests/baselines/reference/instantiatedReturnTypeContravariance.js
@@ -31,6 +31,20 @@ return null;
 
 
 //// [instantiatedReturnTypeContravariance.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -47,6 +61,7 @@ var c = (function () {
     c.prototype.foo = function () {
         return null;
     };
+    __names(c.prototype, ["foo"]);
     return c;
 }());
 var d = (function (_super) {
@@ -57,5 +72,6 @@ var d = (function (_super) {
     d.prototype.foo = function () {
         return null;
     };
+    __names(d.prototype, ["foo"]);
     return d;
 }(c));
diff --git a/tests/baselines/reference/intTypeCheck.js b/tests/baselines/reference/intTypeCheck.js
index 84eb19ac27d88..fbb4efd91a1c1 100644
--- a/tests/baselines/reference/intTypeCheck.js
+++ b/tests/baselines/reference/intTypeCheck.js
@@ -206,10 +206,25 @@ var obj86: i8 = new <i8> anyVar;
 var obj87: i8 = new {};
 
 //// [intTypeCheck.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
     Base.prototype.foo = function () { };
+    __names(Base.prototype, ["foo"]);
     return Base;
 }());
 var anyVar;
diff --git a/tests/baselines/reference/interfaceClassMerging.js b/tests/baselines/reference/interfaceClassMerging.js
index e2167776f22f7..5de7ab16ba2de 100644
--- a/tests/baselines/reference/interfaceClassMerging.js
+++ b/tests/baselines/reference/interfaceClassMerging.js
@@ -41,6 +41,20 @@ obj = bar;
 
 
 //// [interfaceClassMerging.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -57,6 +71,7 @@ var Foo = (function () {
     Foo.prototype.additionalMethod = function (a) {
         return this.method(0);
     };
+    __names(Foo.prototype, ["additionalMethod"]);
     return Foo;
 }());
 var Bar = (function (_super) {
@@ -67,6 +82,7 @@ var Bar = (function (_super) {
     Bar.prototype.method = function (a) {
         return this.optionalProperty;
     };
+    __names(Bar.prototype, ["method"]);
     return Bar;
 }(Foo));
 var bar = new Bar();
diff --git a/tests/baselines/reference/interfaceClassMerging2.js b/tests/baselines/reference/interfaceClassMerging2.js
index 4c879ba4cabc7..f947247f7be58 100644
--- a/tests/baselines/reference/interfaceClassMerging2.js
+++ b/tests/baselines/reference/interfaceClassMerging2.js
@@ -37,6 +37,20 @@ foo = bar;
 
 
 //// [interfaceClassMerging2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -53,6 +67,7 @@ var Foo = (function () {
     Foo.prototype.classFooMethod = function () {
         return this;
     };
+    __names(Foo.prototype, ["classFooMethod"]);
     return Foo;
 }());
 var Bar = (function (_super) {
@@ -63,6 +78,7 @@ var Bar = (function (_super) {
     Bar.prototype.classBarMethod = function () {
         return this;
     };
+    __names(Bar.prototype, ["classBarMethod"]);
     return Bar;
 }(Foo));
 var bar = new Bar();
diff --git a/tests/baselines/reference/interfaceContextualType.js b/tests/baselines/reference/interfaceContextualType.js
index ec50272592509..67d255dcdc562 100644
--- a/tests/baselines/reference/interfaceContextualType.js
+++ b/tests/baselines/reference/interfaceContextualType.js
@@ -23,6 +23,20 @@ class Bug {
 
 //// [interfaceContextualType.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Bug = (function () {
     function Bug() {
@@ -36,5 +50,6 @@ var Bug = (function () {
             comments: { italic: true }
         };
     };
+    __names(Bug.prototype, ["ok", "shouldBeOK"]);
     return Bug;
 }());
diff --git a/tests/baselines/reference/interfaceExtendingClass.js b/tests/baselines/reference/interfaceExtendingClass.js
index e2ca3f89791c2..c261cec161e45 100644
--- a/tests/baselines/reference/interfaceExtendingClass.js
+++ b/tests/baselines/reference/interfaceExtendingClass.js
@@ -20,6 +20,20 @@ var f: Foo = i;
 i = f;
 
 //// [interfaceExtendingClass.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -31,6 +45,7 @@ var Foo = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Foo.prototype, ["y"]);
     return Foo;
 }());
 var i;
diff --git a/tests/baselines/reference/interfaceExtendingClass2.js b/tests/baselines/reference/interfaceExtendingClass2.js
index e3ede26b48ed5..2777969b4adc8 100644
--- a/tests/baselines/reference/interfaceExtendingClass2.js
+++ b/tests/baselines/reference/interfaceExtendingClass2.js
@@ -16,6 +16,20 @@ interface I2 extends Foo { // error
     }
 
 //// [interfaceExtendingClass2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -27,6 +41,7 @@ var Foo = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Foo.prototype, ["y"]);
     return Foo;
 }());
 return 1;
diff --git a/tests/baselines/reference/interfaceExtendsClass1.js b/tests/baselines/reference/interfaceExtendsClass1.js
index 69560e825577a..0a3ce70493e8d 100644
--- a/tests/baselines/reference/interfaceExtendsClass1.js
+++ b/tests/baselines/reference/interfaceExtendsClass1.js
@@ -29,6 +29,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Control = (function () {
     function Control() {
     }
@@ -40,6 +54,7 @@ var Button = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Button.prototype.select = function () { };
+    __names(Button.prototype, ["select"]);
     return Button;
 }(Control));
 var TextBox = (function (_super) {
@@ -48,6 +63,7 @@ var TextBox = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     TextBox.prototype.select = function () { };
+    __names(TextBox.prototype, ["select"]);
     return TextBox;
 }(Control));
 var Image = (function (_super) {
@@ -61,5 +77,6 @@ var Location = (function () {
     function Location() {
     }
     Location.prototype.select = function () { };
+    __names(Location.prototype, ["select"]);
     return Location;
 }());
diff --git a/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js b/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js
index 12d1539bb3d06..81ab9a51f39cc 100644
--- a/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js
+++ b/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js
@@ -28,6 +28,20 @@ c = d;
 d = c; // error
 
 //// [interfaceExtendsClassWithPrivate1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -43,6 +57,7 @@ var C = (function () {
         this.x = 1;
     }
     C.prototype.foo = function (x) { return x; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function (_super) {
@@ -53,6 +68,7 @@ var D = (function (_super) {
     D.prototype.foo = function (x) { return x; };
     D.prototype.other = function (x) { return x; };
     D.prototype.bar = function () { };
+    __names(D.prototype, ["foo", "other", "bar"]);
     return D;
 }(C));
 var c;
diff --git a/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js b/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js
index cec3eed84977c..701834e824f6e 100644
--- a/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js
+++ b/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js
@@ -24,6 +24,20 @@ class D2 extends C implements I { // error
 } 
 
 //// [interfaceExtendsClassWithPrivate2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -39,6 +53,7 @@ var C = (function () {
         this.x = 1;
     }
     C.prototype.foo = function (x) { return x; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function (_super) {
@@ -52,6 +67,7 @@ var D = (function (_super) {
     D.prototype.foo = function (x) { return x; };
     D.prototype.other = function (x) { return x; };
     D.prototype.bar = function () { };
+    __names(D.prototype, ["foo", "other", "bar"]);
     return D;
 }(C));
 var D2 = (function (_super) {
@@ -64,5 +80,6 @@ var D2 = (function (_super) {
     D2.prototype.foo = function (x) { return x; };
     D2.prototype.other = function (x) { return x; };
     D2.prototype.bar = function () { };
+    __names(D2.prototype, ["foo", "other", "bar"]);
     return D2;
 }(C));
diff --git a/tests/baselines/reference/interfaceImplementation1.js b/tests/baselines/reference/interfaceImplementation1.js
index 6a8d1b2d782cd..68143ac929dc2 100644
--- a/tests/baselines/reference/interfaceImplementation1.js
+++ b/tests/baselines/reference/interfaceImplementation1.js
@@ -47,10 +47,25 @@ c["foo"];
 
 
 //// [interfaceImplementation1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1() {
     }
     C1.prototype.iFn = function (n, s) { };
+    __names(C1.prototype, ["iFn"]);
     return C1;
 }());
 var C2 = (function () {
diff --git a/tests/baselines/reference/interfaceImplementation3.js b/tests/baselines/reference/interfaceImplementation3.js
index ef713d517b7d3..fd044f65fb5df 100644
--- a/tests/baselines/reference/interfaceImplementation3.js
+++ b/tests/baselines/reference/interfaceImplementation3.js
@@ -16,9 +16,24 @@ class C4 implements I1 {
 
 
 //// [interfaceImplementation3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C4 = (function () {
     function C4() {
     }
     C4.prototype.iFn = function () { };
+    __names(C4.prototype, ["iFn"]);
     return C4;
 }());
diff --git a/tests/baselines/reference/interfaceImplementation4.js b/tests/baselines/reference/interfaceImplementation4.js
index 07d2f85e311cb..226c21d00f85f 100644
--- a/tests/baselines/reference/interfaceImplementation4.js
+++ b/tests/baselines/reference/interfaceImplementation4.js
@@ -14,9 +14,24 @@ class C5 implements I1 {
 
 
 //// [interfaceImplementation4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C5 = (function () {
     function C5() {
     }
     C5.prototype.iFn = function () { };
+    __names(C5.prototype, ["iFn"]);
     return C5;
 }());
diff --git a/tests/baselines/reference/interfaceImplementation7.js b/tests/baselines/reference/interfaceImplementation7.js
index 7a1a29c65bfb2..147a073dc96cc 100644
--- a/tests/baselines/reference/interfaceImplementation7.js
+++ b/tests/baselines/reference/interfaceImplementation7.js
@@ -11,9 +11,24 @@ class C1 implements i4 {
 
 
 //// [interfaceImplementation7.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1() {
     }
     C1.prototype.name = function () { return ""; };
+    __names(C1.prototype, ["name"]);
     return C1;
 }());
diff --git a/tests/baselines/reference/interfaceSubtyping.js b/tests/baselines/reference/interfaceSubtyping.js
index e0552a964e984..a26a70667e808 100644
--- a/tests/baselines/reference/interfaceSubtyping.js
+++ b/tests/baselines/reference/interfaceSubtyping.js
@@ -10,10 +10,25 @@ class Camera implements iface{
 
 
 //// [interfaceSubtyping.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Camera = (function () {
     function Camera(str) {
         this.str = str;
     }
     Camera.prototype.foo = function () { return "s"; };
+    __names(Camera.prototype, ["foo"]);
     return Camera;
 }());
diff --git a/tests/baselines/reference/interfaceWithPropertyThatIsPrivateInBaseType2.js b/tests/baselines/reference/interfaceWithPropertyThatIsPrivateInBaseType2.js
index 783a1fe4c8ba6..e971fcb046472 100644
--- a/tests/baselines/reference/interfaceWithPropertyThatIsPrivateInBaseType2.js
+++ b/tests/baselines/reference/interfaceWithPropertyThatIsPrivateInBaseType2.js
@@ -16,15 +16,31 @@ interface Foo2<T> extends Base2<T> { // error
 }
 
 //// [interfaceWithPropertyThatIsPrivateInBaseType2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
     Base.prototype.x = function () { };
+    __names(Base.prototype, ["x"]);
     return Base;
 }());
 var Base2 = (function () {
     function Base2() {
     }
     Base2.prototype.x = function () { };
+    __names(Base2.prototype, ["x"]);
     return Base2;
 }());
diff --git a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithExport.js b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithExport.js
index 0b333ac1830a1..0b849d3f2d65e 100644
--- a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithExport.js
+++ b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithExport.js
@@ -19,6 +19,20 @@ export var d = new m2.m3.c();
 
 //// [internalAliasClassInsideLocalModuleWithExport.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var x;
 (function (x) {
@@ -28,6 +42,7 @@ var x;
         c.prototype.foo = function (a) {
             return a;
         };
+        __names(c.prototype, ["foo"]);
         return c;
     }());
     x.c = c;
diff --git a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExport.js b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExport.js
index cf2eb41662b56..4ffe305993a17 100644
--- a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExport.js
+++ b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExport.js
@@ -17,6 +17,20 @@ export module m2 {
 
 //// [internalAliasClassInsideLocalModuleWithoutExport.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var x;
 (function (x) {
@@ -26,6 +40,7 @@ var x;
         c.prototype.foo = function (a) {
             return a;
         };
+        __names(c.prototype, ["foo"]);
         return c;
     }());
     x.c = c;
diff --git a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExportAccessError.js b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExportAccessError.js
index 1de7fe25407fb..753edac75cf43 100644
--- a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExportAccessError.js
+++ b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExportAccessError.js
@@ -19,6 +19,20 @@ export var d = new m2.m3.c();
 
 //// [internalAliasClassInsideLocalModuleWithoutExportAccessError.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var x;
 (function (x) {
@@ -28,6 +42,7 @@ var x;
         c.prototype.foo = function (a) {
             return a;
         };
+        __names(c.prototype, ["foo"]);
         return c;
     }());
     x.c = c;
diff --git a/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithExport.js b/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithExport.js
index e224b40c9f320..d659e75b03e96 100644
--- a/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithExport.js
+++ b/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithExport.js
@@ -13,6 +13,20 @@ var cReturnVal = cProp.foo(10);
 
 //// [internalAliasClassInsideTopLevelModuleWithExport.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var x;
 (function (x) {
@@ -22,6 +36,7 @@ var x;
         c.prototype.foo = function (a) {
             return a;
         };
+        __names(c.prototype, ["foo"]);
         return c;
     }());
     x.c = c;
diff --git a/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithoutExport.js b/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithoutExport.js
index 16f53fe3e8b0e..332fa032924a3 100644
--- a/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithoutExport.js
+++ b/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithoutExport.js
@@ -13,6 +13,20 @@ var cReturnVal = cProp.foo(10);
 
 //// [internalAliasClassInsideTopLevelModuleWithoutExport.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var x;
 (function (x) {
@@ -22,6 +36,7 @@ var x;
         c.prototype.foo = function (a) {
             return a;
         };
+        __names(c.prototype, ["foo"]);
         return c;
     }());
     x.c = c;
diff --git a/tests/baselines/reference/invalidNewTarget.es5.js b/tests/baselines/reference/invalidNewTarget.es5.js
index 1c2da520fcb2d..31a2449fc9aa7 100644
--- a/tests/baselines/reference/invalidNewTarget.es5.js
+++ b/tests/baselines/reference/invalidNewTarget.es5.js
@@ -25,6 +25,20 @@ const O = {
 };
 
 //// [invalidNewTarget.es5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var a = _newTarget;
 var b = function () { return _newTarget; };
 var C = (function () {
@@ -32,7 +46,7 @@ var C = (function () {
         var _newTarget = this.constructor;
         this.f = function () { return _newTarget; };
     }
-    C.prototype[_newTarget] = function () { };
+    C.prototype[_a = _newTarget] = function () { };
     C.prototype.c = function () { var _newTarget = void 0; return _newTarget; };
     Object.defineProperty(C.prototype, "d", {
         get: function () { var _newTarget = void 0; return _newTarget; },
@@ -56,6 +70,8 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, [_a, "c"]);
+    var _a;
     C.j = function () { return _newTarget; };
     return C;
 }());
@@ -72,6 +88,6 @@ var O = (_a = {},
         enumerable: true,
         configurable: true
     }),
-    _a.n = _newTarget,
+    _a.n = _newTarget, __names(_a, ["k"]),
     _a);
 var _a;
diff --git a/tests/baselines/reference/invalidReturnStatements.js b/tests/baselines/reference/invalidReturnStatements.js
index af20c18c85343..076aa3f89b259 100644
--- a/tests/baselines/reference/invalidReturnStatements.js
+++ b/tests/baselines/reference/invalidReturnStatements.js
@@ -21,6 +21,20 @@ function fn11(): D { return new C(); }
 
 
 //// [invalidReturnStatements.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -41,6 +55,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.dispose = function () { };
+    __names(C.prototype, ["dispose"]);
     return C;
 }());
 var D = (function (_super) {
diff --git a/tests/baselines/reference/invalidStaticField.js b/tests/baselines/reference/invalidStaticField.js
index dc582e830c7c7..a72fcafdc62b3 100644
--- a/tests/baselines/reference/invalidStaticField.js
+++ b/tests/baselines/reference/invalidStaticField.js
@@ -3,10 +3,25 @@ class A { foo() { return B.NULL; } }
 class B { static NOT_NULL = new B(); }
 
 //// [invalidStaticField.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { return B.NULL; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
diff --git a/tests/baselines/reference/invalidThisEmitInContextualObjectLiteral.js b/tests/baselines/reference/invalidThisEmitInContextualObjectLiteral.js
index d3bfa819bc908..9817156ae9b34 100644
--- a/tests/baselines/reference/invalidThisEmitInContextualObjectLiteral.js
+++ b/tests/baselines/reference/invalidThisEmitInContextualObjectLiteral.js
@@ -14,6 +14,20 @@ class TestController {
 
 
 //// [invalidThisEmitInContextualObjectLiteral.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var TestController = (function () {
     function TestController() {
         var _this = this;
@@ -23,5 +37,6 @@ var TestController = (function () {
         });
     }
     TestController.prototype.m = function (def) { };
+    __names(TestController.prototype, ["m"]);
     return TestController;
 }());
diff --git a/tests/baselines/reference/jsFileCompilationClassMethodContainingArrowFunction.js b/tests/baselines/reference/jsFileCompilationClassMethodContainingArrowFunction.js
index 0e7ff45f16c07..4aea7a89d1be5 100644
--- a/tests/baselines/reference/jsFileCompilationClassMethodContainingArrowFunction.js
+++ b/tests/baselines/reference/jsFileCompilationClassMethodContainingArrowFunction.js
@@ -6,6 +6,20 @@ class c {
 }
 
 //// [out.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var c = (function () {
     function c() {
     }
@@ -13,5 +27,6 @@ var c = (function () {
         var _this = this;
         var x = function (a) { return _this.method(a); };
     };
+    __names(c.prototype, ["method"]);
     return c;
 }());
diff --git a/tests/baselines/reference/jsxFactoryQualifiedNameWithEs5.js b/tests/baselines/reference/jsxFactoryQualifiedNameWithEs5.js
index b549fb58a0a69..58ecdfaa4145a 100644
--- a/tests/baselines/reference/jsxFactoryQualifiedNameWithEs5.js
+++ b/tests/baselines/reference/jsxFactoryQualifiedNameWithEs5.js
@@ -12,6 +12,20 @@ class Component {
 
 //// [index.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 require("./jsx");
 var skate;
@@ -22,6 +36,7 @@ var Component = (function () {
     Component.prototype.renderCallback = function () {
         return skate.h("div", null, "test");
     };
+    __names(Component.prototype, ["renderCallback"]);
     return Component;
 }());
 ;
diff --git a/tests/baselines/reference/jsxInExtendsClause.js b/tests/baselines/reference/jsxInExtendsClause.js
index 779b2d4cf8a5f..5d4fc0007b60a 100644
--- a/tests/baselines/reference/jsxInExtendsClause.js
+++ b/tests/baselines/reference/jsxInExtendsClause.js
@@ -22,6 +22,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function (_super) {
     __extends(Foo, _super);
     function Foo() {
@@ -36,5 +50,6 @@ var Foo = (function (_super) {
     class_1.prototype.render = function () {
         return React.createElement("span", null, "Hello, world!");
     };
+    __names(class_1.prototype, ["render"]);
     return class_1;
 }(React.Component)); })));
diff --git a/tests/baselines/reference/jsxViaImport.2.js b/tests/baselines/reference/jsxViaImport.2.js
index 813df2de93812..3406b9c9a7e4e 100644
--- a/tests/baselines/reference/jsxViaImport.2.js
+++ b/tests/baselines/reference/jsxViaImport.2.js
@@ -34,6 +34,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 /// <reference path="component.d.ts" />
 var BaseComponent_1 = require("BaseComponent");
@@ -45,5 +59,6 @@ var TestComponent = (function (_super) {
     TestComponent.prototype.render = function () {
         return <BaseComponent_1.default />;
     };
+    __names(TestComponent.prototype, ["render"]);
     return TestComponent;
 }(React.Component));
diff --git a/tests/baselines/reference/jsxViaImport.js b/tests/baselines/reference/jsxViaImport.js
index cfbbb9eb456ce..09d2f7a97aa51 100644
--- a/tests/baselines/reference/jsxViaImport.js
+++ b/tests/baselines/reference/jsxViaImport.js
@@ -34,6 +34,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 /// <reference path="component.d.ts" />
 var BaseComponent = require("BaseComponent");
@@ -45,5 +59,6 @@ var TestComponent = (function (_super) {
     TestComponent.prototype.render = function () {
         return <BaseComponent />;
     };
+    __names(TestComponent.prototype, ["render"]);
     return TestComponent;
 }(React.Component));
diff --git a/tests/baselines/reference/keyofAndIndexedAccess.js b/tests/baselines/reference/keyofAndIndexedAccess.js
index cbd9549b1637b..01972cc6dca90 100644
--- a/tests/baselines/reference/keyofAndIndexedAccess.js
+++ b/tests/baselines/reference/keyofAndIndexedAccess.js
@@ -565,6 +565,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Shape = (function () {
     function Shape() {
     }
@@ -624,6 +638,7 @@ var Component = (function () {
     Component.prototype.setProperty = function (key, value) {
         this.props[key] = value;
     };
+    __names(Component.prototype, ["getProperty", "setProperty"]);
     return Component;
 }());
 function f20(component) {
@@ -770,6 +785,7 @@ var C1 = (function () {
         this.set("x", 42);
         setProperty(this, "x", 42);
     };
+    __names(C1.prototype, ["get", "set", "foo"]);
     return C1;
 }());
 function f90(x1, x2, x3, x4) {
@@ -800,6 +816,7 @@ var Base = (function () {
     Base.prototype.set = function (prop, value) {
         this[prop] = value;
     };
+    __names(Base.prototype, ["get", "set"]);
     return Base;
 }());
 var Person = (function (_super) {
@@ -812,6 +829,7 @@ var Person = (function (_super) {
     Person.prototype.getParts = function () {
         return this.get("parts");
     };
+    __names(Person.prototype, ["getParts"]);
     return Person;
 }(Base));
 var OtherPerson = (function () {
@@ -821,6 +839,7 @@ var OtherPerson = (function () {
     OtherPerson.prototype.getParts = function () {
         return getProperty(this, "parts");
     };
+    __names(OtherPerson.prototype, ["getParts"]);
     return OtherPerson;
 }());
 function path(obj) {
@@ -896,6 +915,7 @@ var B = (function (_super) {
     B.prototype.f = function (p) {
         p.x;
     };
+    __names(B.prototype, ["f"]);
     return B;
 }(A));
 // Repro from #13749
@@ -905,6 +925,7 @@ var Form = (function () {
     Form.prototype.set = function (prop, value) {
         this.childFormFactories[prop](value);
     };
+    __names(Form.prototype, ["set"]);
     return Form;
 }());
 // Repro from #13787
@@ -925,6 +946,7 @@ var AnotherSampleClass = (function (_super) {
     AnotherSampleClass.prototype.brokenMethod = function () {
         this.props.foo.concat;
     };
+    __names(AnotherSampleClass.prototype, ["brokenMethod"]);
     return AnotherSampleClass;
 }(SampleClass));
 new AnotherSampleClass({});
diff --git a/tests/baselines/reference/lambdaArgCrash.js b/tests/baselines/reference/lambdaArgCrash.js
index 9a903b513d9f2..01e9b419bfc9b 100644
--- a/tests/baselines/reference/lambdaArgCrash.js
+++ b/tests/baselines/reference/lambdaArgCrash.js
@@ -35,6 +35,20 @@ class ItemSetEvent extends Event {
 
 
 //// [lambdaArgCrash.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -56,6 +70,7 @@ var Event = (function () {
         /// <param name="listener">The callback function to register.</param>
         this._listeners.push(listener);
     };
+    __names(Event.prototype, ["add"]);
     return Event;
 }());
 var ItemSetEvent = (function (_super) {
@@ -66,5 +81,6 @@ var ItemSetEvent = (function (_super) {
     ItemSetEvent.prototype.add = function (listener) {
         _super.prototype.add.call(this, listener);
     };
+    __names(ItemSetEvent.prototype, ["add"]);
     return ItemSetEvent;
 }(Event));
diff --git a/tests/baselines/reference/lambdaPropSelf.js b/tests/baselines/reference/lambdaPropSelf.js
index 5e19726f79492..a941580a95bce 100644
--- a/tests/baselines/reference/lambdaPropSelf.js
+++ b/tests/baselines/reference/lambdaPropSelf.js
@@ -24,6 +24,20 @@ module M {
 
 
 //// [lambdaPropSelf.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Person = (function () {
     function Person(name, children) {
         var _this = this;
@@ -39,6 +53,7 @@ var T = (function () {
     T.prototype.fo = function () {
         var x = this;
     };
+    __names(T.prototype, ["fo"]);
     return T;
 }());
 var M;
diff --git a/tests/baselines/reference/lift.js b/tests/baselines/reference/lift.js
index 80eebe9cb00bc..0a952cbc2fae0 100644
--- a/tests/baselines/reference/lift.js
+++ b/tests/baselines/reference/lift.js
@@ -28,6 +28,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var B = (function () {
     function B(y) {
         this.y = y;
@@ -44,5 +58,6 @@ var C = (function (_super) {
     }
     C.prototype.liftxyz = function () { return x + z + this.y; };
     C.prototype.liftxylocllz = function () { return x + z + this.y + this.ll; };
+    __names(C.prototype, ["liftxyz", "liftxylocllz"]);
     return C;
 }(B));
diff --git a/tests/baselines/reference/listFailure.js b/tests/baselines/reference/listFailure.js
index ab0e9ca5bff0b..806bbb0deecfb 100644
--- a/tests/baselines/reference/listFailure.js
+++ b/tests/baselines/reference/listFailure.js
@@ -42,6 +42,20 @@ module Editor {
 }
 
 //// [listFailure.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Editor;
 (function (Editor) {
     var Buffer = (function () {
@@ -53,6 +67,7 @@ var Editor;
             var lineEntry = this.lines.add(line);
             return lineEntry;
         };
+        __names(Buffer.prototype, ["addLine"]);
         return Buffer;
     }());
     Editor.Buffer = Buffer;
@@ -78,6 +93,7 @@ var Editor;
         List.prototype.popEntry = function (head) {
             return (ListRemoveEntry(this.next));
         };
+        __names(List.prototype, ["add", "popEntry"]);
         return List;
     }());
     var Line = (function () {
diff --git a/tests/baselines/reference/literalTypes2.js b/tests/baselines/reference/literalTypes2.js
index 415129b2d9bea..9c4cdcd025e79 100644
--- a/tests/baselines/reference/literalTypes2.js
+++ b/tests/baselines/reference/literalTypes2.js
@@ -180,6 +180,20 @@ aa = append(aa, 1);
 
 
 //// [literalTypes2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var E;
 (function (E) {
     E[E["A"] = 0] = "A";
@@ -313,6 +327,7 @@ var C2 = (function () {
     C2.prototype.bar = function () {
         return cond ? 0 : 1;
     };
+    __names(C2.prototype, ["foo", "bar"]);
     return C2;
 }());
 function f20() {
diff --git a/tests/baselines/reference/localTypes1.js b/tests/baselines/reference/localTypes1.js
index 4eddc5c838cfb..6e166f4640f73 100644
--- a/tests/baselines/reference/localTypes1.js
+++ b/tests/baselines/reference/localTypes1.js
@@ -141,6 +141,20 @@ function f6() {
 
 
 //// [localTypes1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -292,6 +306,7 @@ var A = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(A.prototype, ["m"]);
     return A;
 }());
 function f6() {
diff --git a/tests/baselines/reference/localTypes5.js b/tests/baselines/reference/localTypes5.js
index c7f0f722741e8..827fabe52a913 100644
--- a/tests/baselines/reference/localTypes5.js
+++ b/tests/baselines/reference/localTypes5.js
@@ -16,6 +16,20 @@ var x = foo<void>();
 
 
 //// [localTypes5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo() {
     var X = (function () {
         function X() {
@@ -30,6 +44,7 @@ function foo() {
                 return new Y();
             })();
         };
+        __names(X.prototype, ["m"]);
         return X;
     }());
     var x = new X();
diff --git a/tests/baselines/reference/looseThisTypeInFunctions.js b/tests/baselines/reference/looseThisTypeInFunctions.js
index cb1fbcc8b9572..058a72efa9b10 100644
--- a/tests/baselines/reference/looseThisTypeInFunctions.js
+++ b/tests/baselines/reference/looseThisTypeInFunctions.js
@@ -49,6 +49,20 @@ i.explicitThis = function(m) {
 
 
 //// [looseThisTypeInFunctions.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -61,6 +75,7 @@ var C = (function () {
     C.prototype.explicitVoid = function (m) {
         return m + 1;
     };
+    __names(C.prototype, ["explicitThis", "implicitThis", "explicitVoid"]);
     return C;
 }());
 var c = new C();
diff --git a/tests/baselines/reference/mappedTypeErrors.js b/tests/baselines/reference/mappedTypeErrors.js
index dcaa737edd85c..1ed223c379071 100644
--- a/tests/baselines/reference/mappedTypeErrors.js
+++ b/tests/baselines/reference/mappedTypeErrors.js
@@ -145,6 +145,20 @@ let f: Foo2<O, 'x'> = {
 
 
 //// [mappedTypeErrors.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f1(x) {
     var y; // Error
 }
@@ -204,6 +218,7 @@ var C = (function () {
             this.state[k] = props[k];
         }
     };
+    __names(C.prototype, ["setState"]);
     return C;
 }());
 var c = new C();
diff --git a/tests/baselines/reference/mappedTypePartialConstraints.js b/tests/baselines/reference/mappedTypePartialConstraints.js
index 1c83e2506dd0c..b111e292a69e4 100644
--- a/tests/baselines/reference/mappedTypePartialConstraints.js
+++ b/tests/baselines/reference/mappedTypePartialConstraints.js
@@ -18,6 +18,20 @@ fn(MySubClass);
 
 //// [mappedTypePartialConstraints.js]
 // Repro from #16985
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -32,6 +46,7 @@ var MyClass = (function () {
     function MyClass() {
     }
     MyClass.prototype.doIt = function (data) { };
+    __names(MyClass.prototype, ["doIt"]);
     return MyClass;
 }());
 var MySubClass = (function (_super) {
diff --git a/tests/baselines/reference/matchReturnTypeInAllBranches.js b/tests/baselines/reference/matchReturnTypeInAllBranches.js
index 4ac2c63eb4f4d..95b61d7d8fddd 100644
--- a/tests/baselines/reference/matchReturnTypeInAllBranches.js
+++ b/tests/baselines/reference/matchReturnTypeInAllBranches.js
@@ -36,6 +36,20 @@ var cookieMonster: IceCreamMonster;
 cookieMonster = new IceCreamMonster("Chocolate Chip", false, "COOOOOKIE", "Cookie Monster");
 
 //// [matchReturnTypeInAllBranches.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // Represents a monster who enjoys ice cream
 var IceCreamMonster = (function () {
     function IceCreamMonster(iceCreamFlavor, wantsSprinkles, soundsWhenEating, name) {
@@ -61,6 +75,7 @@ var IceCreamMonster = (function () {
             return 12345;
         }
     };
+    __names(IceCreamMonster.prototype, ["eatIceCream"]);
     return IceCreamMonster;
 }());
 var cookieMonster;
diff --git a/tests/baselines/reference/memberFunctionsWithPrivateOverloads.js b/tests/baselines/reference/memberFunctionsWithPrivateOverloads.js
index ecf9a14033ba0..65f1510eca46c 100644
--- a/tests/baselines/reference/memberFunctionsWithPrivateOverloads.js
+++ b/tests/baselines/reference/memberFunctionsWithPrivateOverloads.js
@@ -50,6 +50,20 @@ var r3 = C.foo(1); // error
 var r4 = D.bar(''); // error
 
 //// [memberFunctionsWithPrivateOverloads.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -57,6 +71,7 @@ var C = (function () {
     C.prototype.bar = function (x, y) { };
     C.foo = function (x, y) { };
     C.bar = function (x, y) { };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }());
 var D = (function () {
@@ -66,6 +81,7 @@ var D = (function () {
     D.prototype.bar = function (x, y) { };
     D.foo = function (x, y) { };
     D.bar = function (x, y) { };
+    __names(D.prototype, ["foo", "bar"]);
     return D;
 }());
 var c;
diff --git a/tests/baselines/reference/memberFunctionsWithPublicOverloads.js b/tests/baselines/reference/memberFunctionsWithPublicOverloads.js
index 91b9e82967303..3d0027bd261ee 100644
--- a/tests/baselines/reference/memberFunctionsWithPublicOverloads.js
+++ b/tests/baselines/reference/memberFunctionsWithPublicOverloads.js
@@ -41,6 +41,20 @@ class D<T> {
 }
 
 //// [memberFunctionsWithPublicOverloads.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -48,6 +62,7 @@ var C = (function () {
     C.prototype.bar = function (x, y) { };
     C.foo = function (x, y) { };
     C.bar = function (x, y) { };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }());
 var D = (function () {
@@ -57,5 +72,6 @@ var D = (function () {
     D.prototype.bar = function (x, y) { };
     D.foo = function (x, y) { };
     D.bar = function (x, y) { };
+    __names(D.prototype, ["foo", "bar"]);
     return D;
 }());
diff --git a/tests/baselines/reference/memberFunctionsWithPublicPrivateOverloads.js b/tests/baselines/reference/memberFunctionsWithPublicPrivateOverloads.js
index 1d8d40533c644..6492930b81053 100644
--- a/tests/baselines/reference/memberFunctionsWithPublicPrivateOverloads.js
+++ b/tests/baselines/reference/memberFunctionsWithPublicPrivateOverloads.js
@@ -63,6 +63,20 @@ var d: D<number>;
 var r2 = d.foo(2); // error
 
 //// [memberFunctionsWithPublicPrivateOverloads.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -72,6 +86,7 @@ var C = (function () {
     C.prototype.baz = function (x, y) { };
     C.bar = function (x, y) { };
     C.baz = function (x, y) { };
+    __names(C.prototype, ["foo", "bar", "baz"]);
     return C;
 }());
 var D = (function () {
@@ -83,6 +98,7 @@ var D = (function () {
     D.foo = function (x, y) { };
     D.bar = function (x, y) { };
     D.baz = function (x, y) { };
+    __names(D.prototype, ["foo", "bar", "baz"]);
     return D;
 }());
 var c;
diff --git a/tests/baselines/reference/mergedDeclarations5.js b/tests/baselines/reference/mergedDeclarations5.js
index a1e144fc2230e..d641665b18a94 100644
--- a/tests/baselines/reference/mergedDeclarations5.js
+++ b/tests/baselines/reference/mergedDeclarations5.js
@@ -12,10 +12,25 @@ class B extends A {
 }
 
 //// [a.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 //// [b.js]
@@ -29,11 +44,26 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var B = (function (_super) {
     __extends(B, _super);
     function B() {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     B.prototype.foo = function () { };
+    __names(B.prototype, ["foo"]);
     return B;
 }(A));
diff --git a/tests/baselines/reference/mergedDeclarations6.js b/tests/baselines/reference/mergedDeclarations6.js
index 2b492b569c250..54e2435a57464 100644
--- a/tests/baselines/reference/mergedDeclarations6.js
+++ b/tests/baselines/reference/mergedDeclarations6.js
@@ -23,6 +23,20 @@ export class B extends A {
 }
 
 //// [a.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -32,6 +46,7 @@ define(["require", "exports"], function (require, exports) {
         A.prototype.setProtected = function (val) {
             this.protected = val;
         };
+        __names(A.prototype, ["setProtected"]);
         return A;
     }());
     exports.A = A;
@@ -47,6 +62,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports", "./a"], function (require, exports, a_1) {
     "use strict";
     exports.__esModule = true;
@@ -57,6 +86,7 @@ define(["require", "exports", "./a"], function (require, exports, a_1) {
         }
         B.prototype.setProtected = function () {
         };
+        __names(B.prototype, ["setProtected"]);
         return B;
     }(a_1.A));
     exports.B = B;
diff --git a/tests/baselines/reference/mergedInheritedClassInterface.js b/tests/baselines/reference/mergedInheritedClassInterface.js
index 25ad2b8be759f..77726d28a3704 100644
--- a/tests/baselines/reference/mergedInheritedClassInterface.js
+++ b/tests/baselines/reference/mergedInheritedClassInterface.js
@@ -47,6 +47,20 @@ grandchild.method2();
 
 
 //// [mergedInheritedClassInterface.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -61,6 +75,7 @@ var BaseClass = (function () {
     function BaseClass() {
     }
     BaseClass.prototype.baseMethod = function () { };
+    __names(BaseClass.prototype, ["baseMethod"]);
     return BaseClass;
 }());
 var Child = (function (_super) {
@@ -69,12 +84,14 @@ var Child = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Child.prototype.method = function () { };
+    __names(Child.prototype, ["method"]);
     return Child;
 }(BaseClass));
 var ChildNoBaseClass = (function () {
     function ChildNoBaseClass() {
     }
     ChildNoBaseClass.prototype.method2 = function () { };
+    __names(ChildNoBaseClass.prototype, ["method2"]);
     return ChildNoBaseClass;
 }());
 var Grandchild = (function (_super) {
diff --git a/tests/baselines/reference/methodContainingLocalFunction.js b/tests/baselines/reference/methodContainingLocalFunction.js
index d051d46bb1ca9..224f3e311f3fa 100644
--- a/tests/baselines/reference/methodContainingLocalFunction.js
+++ b/tests/baselines/reference/methodContainingLocalFunction.js
@@ -51,6 +51,20 @@ enum E {
 }
 
 //// [methodContainingLocalFunction.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // The first case here (BugExhibition<T>) caused a crash. Try with different permutations of features.
 var BugExhibition = (function () {
     function BugExhibition() {
@@ -60,6 +74,7 @@ var BugExhibition = (function () {
         var x;
         x = localFunction;
     };
+    __names(BugExhibition.prototype, ["exhibitBug"]);
     return BugExhibition;
 }());
 var BugExhibition2 = (function () {
@@ -85,6 +100,7 @@ var BugExhibition3 = (function () {
         var x;
         x = localGenericFunction;
     };
+    __names(BugExhibition3.prototype, ["exhibitBug"]);
     return BugExhibition3;
 }());
 var C = (function () {
@@ -95,6 +111,7 @@ var C = (function () {
         var x;
         x = funcExpr;
     };
+    __names(C.prototype, ["exhibit"]);
     return C;
 }());
 var M;
diff --git a/tests/baselines/reference/methodSignatureDeclarationEmit1.js b/tests/baselines/reference/methodSignatureDeclarationEmit1.js
index d8697481c68df..8258410ce6cfe 100644
--- a/tests/baselines/reference/methodSignatureDeclarationEmit1.js
+++ b/tests/baselines/reference/methodSignatureDeclarationEmit1.js
@@ -7,11 +7,26 @@ class C {
 }
 
 //// [methodSignatureDeclarationEmit1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (a) {
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 
diff --git a/tests/baselines/reference/mismatchedGenericArguments1.js b/tests/baselines/reference/mismatchedGenericArguments1.js
index 8a1f67db190cc..20bf81461fbdc 100644
--- a/tests/baselines/reference/mismatchedGenericArguments1.js
+++ b/tests/baselines/reference/mismatchedGenericArguments1.js
@@ -16,12 +16,27 @@ class C2<T> implements IFoo<T> {
 
 
 //// [mismatchedGenericArguments1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) {
         return null;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var C2 = (function () {
@@ -30,5 +45,6 @@ var C2 = (function () {
     C2.prototype.foo = function (x) {
         return null;
     };
+    __names(C2.prototype, ["foo"]);
     return C2;
 }());
diff --git a/tests/baselines/reference/missingDecoratorType.js b/tests/baselines/reference/missingDecoratorType.js
index eca16c710e37e..8f2ba5176befd 100644
--- a/tests/baselines/reference/missingDecoratorType.js
+++ b/tests/baselines/reference/missingDecoratorType.js
@@ -22,6 +22,20 @@ class C {
 
 //// [a.js]
 //// [b.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -32,6 +46,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
+    __names(C.prototype, ["method"]);
     __decorate([
         dec
     ], C.prototype, "method", null);
diff --git a/tests/baselines/reference/missingPropertiesOfClassExpression.js b/tests/baselines/reference/missingPropertiesOfClassExpression.js
index 7f468d14def32..24a60923347a5 100644
--- a/tests/baselines/reference/missingPropertiesOfClassExpression.js
+++ b/tests/baselines/reference/missingPropertiesOfClassExpression.js
@@ -17,6 +17,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var George = (function (_super) {
     __extends(George, _super);
     function George() {
@@ -27,5 +41,6 @@ var George = (function (_super) {
     function class_1() {
     }
     class_1.prototype.reset = function () { return this.y; };
+    __names(class_1.prototype, ["reset"]);
     return class_1;
 }())));
diff --git a/tests/baselines/reference/missingReturnStatement.js b/tests/baselines/reference/missingReturnStatement.js
index f09ccb4e26e27..44270f48df30d 100644
--- a/tests/baselines/reference/missingReturnStatement.js
+++ b/tests/baselines/reference/missingReturnStatement.js
@@ -8,6 +8,20 @@ module Test {
 
 
 //// [missingReturnStatement.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Test;
 (function (Test) {
     var Bug = (function () {
@@ -15,6 +29,7 @@ var Test;
         }
         Bug.prototype.foo = function () {
         };
+        __names(Bug.prototype, ["foo"]);
         return Bug;
     }());
     Test.Bug = Bug;
diff --git a/tests/baselines/reference/missingReturnStatement1.js b/tests/baselines/reference/missingReturnStatement1.js
index 9e24623fa6c2e..e3262b9664086 100644
--- a/tests/baselines/reference/missingReturnStatement1.js
+++ b/tests/baselines/reference/missingReturnStatement1.js
@@ -7,11 +7,26 @@ class Foo {
 
 
 //// [missingReturnStatement1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
     Foo.prototype.foo = function () {
         //return 4;
     };
+    __names(Foo.prototype, ["foo"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/missingSelf.js b/tests/baselines/reference/missingSelf.js
index e1020ea635b34..5f7a96023a4bc 100644
--- a/tests/baselines/reference/missingSelf.js
+++ b/tests/baselines/reference/missingSelf.js
@@ -19,11 +19,26 @@ c2.b();
 
 
 //// [missingSelf.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var CalcButton = (function () {
     function CalcButton() {
     }
     CalcButton.prototype.a = function () { this.onClick(); };
     CalcButton.prototype.onClick = function () { };
+    __names(CalcButton.prototype, ["a", "onClick"]);
     return CalcButton;
 }());
 var CalcButton2 = (function () {
@@ -34,6 +49,7 @@ var CalcButton2 = (function () {
         (function () { return _this.onClick(); });
     };
     CalcButton2.prototype.onClick = function () { };
+    __names(CalcButton2.prototype, ["b", "onClick"]);
     return CalcButton2;
 }());
 var c = new CalcButton();
diff --git a/tests/baselines/reference/mixedStaticAndInstanceClassMembers.js b/tests/baselines/reference/mixedStaticAndInstanceClassMembers.js
index eac3729abcdfa..4f00ce2ba3775 100644
--- a/tests/baselines/reference/mixedStaticAndInstanceClassMembers.js
+++ b/tests/baselines/reference/mixedStaticAndInstanceClassMembers.js
@@ -16,12 +16,27 @@ class B {
 }
 
 //// [mixedStaticAndInstanceClassMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.f = function () { };
     A.prototype.m1 = function (a) {
     };
+    __names(A.prototype, ["f", "m1"]);
     return A;
 }());
 var B = (function () {
@@ -30,5 +45,6 @@ var B = (function () {
     B.prototype.f = function () { };
     B.prototype.m1 = function (a) {
     };
+    __names(B.prototype, ["f", "m1"]);
     return B;
 }());
diff --git a/tests/baselines/reference/mixinAccessModifiers.js b/tests/baselines/reference/mixinAccessModifiers.js
index 736808455bbcb..c47a24a063b42 100644
--- a/tests/baselines/reference/mixinAccessModifiers.js
+++ b/tests/baselines/reference/mixinAccessModifiers.js
@@ -118,6 +118,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Private = (function () {
     function Private() {
         var args = [];
@@ -227,6 +241,7 @@ var C4 = (function (_super) {
         C5.s;
         C6.s;
     };
+    __names(C4.prototype, ["f"]);
     return C4;
 }(Mix(Protected, Protected2)));
 var C5 = (function (_super) {
@@ -244,6 +259,7 @@ var C5 = (function (_super) {
         C5.s;
         C6.s;
     };
+    __names(C5.prototype, ["f"]);
     return C5;
 }(Mix(Protected, Public)));
 var C6 = (function (_super) {
@@ -261,6 +277,7 @@ var C6 = (function (_super) {
         C5.s;
         C6.s;
     };
+    __names(C6.prototype, ["f"]);
     return C6;
 }(Mix(Public, Public2)));
 
diff --git a/tests/baselines/reference/mixinClassesAnnotated.js b/tests/baselines/reference/mixinClassesAnnotated.js
index 15282a11dd8fc..e46d76986b5ce 100644
--- a/tests/baselines/reference/mixinClassesAnnotated.js
+++ b/tests/baselines/reference/mixinClassesAnnotated.js
@@ -77,6 +77,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base(x, y) {
         this.x = x;
@@ -101,6 +115,7 @@ var Printable = function (superClass) { return _a = (function (_super) {
         class_1.prototype.print = function () {
             var output = this.x + "," + this.y;
         };
+        __names(class_1.prototype, ["print"]);
         return class_1;
     }(superClass)),
     _a.message = "hello",
@@ -145,6 +160,7 @@ var Thing3 = (function (_super) {
     Thing3.prototype.test = function () {
         this.print();
     };
+    __names(Thing3.prototype, ["test"]);
     return Thing3;
 }(Thing2));
 
diff --git a/tests/baselines/reference/mixinClassesAnonymous.js b/tests/baselines/reference/mixinClassesAnonymous.js
index aa148c25acf0d..d0ccd9a8f9371 100644
--- a/tests/baselines/reference/mixinClassesAnonymous.js
+++ b/tests/baselines/reference/mixinClassesAnonymous.js
@@ -76,6 +76,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base(x, y) {
         this.x = x;
@@ -100,6 +114,7 @@ var Printable = function (superClass) { return _a = (function (_super) {
         class_1.prototype.print = function () {
             var output = this.x + "," + this.y;
         };
+        __names(class_1.prototype, ["print"]);
         return class_1;
     }(superClass)),
     _a.message = "hello",
@@ -144,6 +159,7 @@ var Thing3 = (function (_super) {
     Thing3.prototype.test = function () {
         this.print();
     };
+    __names(Thing3.prototype, ["test"]);
     return Thing3;
 }(Thing2));
 // Repro from #13805
diff --git a/tests/baselines/reference/mixinClassesMembers.js b/tests/baselines/reference/mixinClassesMembers.js
index 4771cec384d61..4224fb869207d 100644
--- a/tests/baselines/reference/mixinClassesMembers.js
+++ b/tests/baselines/reference/mixinClassesMembers.js
@@ -109,6 +109,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f1() {
     var x1 = new Mixed1("hello");
     var x2 = new Mixed1(42);
@@ -177,6 +191,7 @@ var C3 = (function (_super) {
         return _this;
     }
     C3.prototype.f = function () { return _super.prototype.f.call(this); };
+    __names(C3.prototype, ["f"]);
     return C3;
 }(Mixed3));
 
diff --git a/tests/baselines/reference/mixinPrivateAndProtected.js b/tests/baselines/reference/mixinPrivateAndProtected.js
index 9b8f3ee0c128a..694af2293b123 100644
--- a/tests/baselines/reference/mixinPrivateAndProtected.js
+++ b/tests/baselines/reference/mixinPrivateAndProtected.js
@@ -101,6 +101,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
         this.pb = 2;
@@ -167,6 +181,7 @@ var Person = (function () {
     Person.prototype.myProtectedFunction = function () {
         // do something
     };
+    __names(Person.prototype, ["myProtectedFunction"]);
     return Person;
 }());
 function PersonMixin(Base) {
@@ -183,6 +198,7 @@ function PersonMixin(Base) {
             _super.prototype.myProtectedFunction.call(this);
             // do more things
         };
+        __names(class_4.prototype, ["myProtectedFunction"]);
         return class_4;
     }(Base));
 }
@@ -193,5 +209,6 @@ var Customer = (function (_super) {
     }
     Customer.prototype.f = function () {
     };
+    __names(Customer.prototype, ["f"]);
     return Customer;
 }(PersonMixin(Person)));
diff --git a/tests/baselines/reference/mixingStaticAndInstanceOverloads.js b/tests/baselines/reference/mixingStaticAndInstanceOverloads.js
index ee405be1f431a..44852f3274bb3 100644
--- a/tests/baselines/reference/mixingStaticAndInstanceOverloads.js
+++ b/tests/baselines/reference/mixingStaticAndInstanceOverloads.js
@@ -36,6 +36,20 @@ class C5 {
 }
 
 //// [mixingStaticAndInstanceOverloads.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1() {
     }
@@ -46,12 +60,14 @@ var C2 = (function () {
     function C2() {
     }
     C2.prototype.foo2 = function (a) { };
+    __names(C2.prototype, ["foo2"]);
     return C2;
 }());
 var C3 = (function () {
     function C3() {
     }
     C3.prototype.foo3 = function (a) { };
+    __names(C3.prototype, ["foo3"]);
     return C3;
 }());
 var C4 = (function () {
@@ -65,5 +81,6 @@ var C5 = (function () {
     }
     C5.prototype.foo5 = function (a) { };
     C5.foo5 = function (a) { };
+    __names(C5.prototype, ["foo5"]);
     return C5;
 }());
diff --git a/tests/baselines/reference/modifierOnClassDeclarationMemberInFunction.js b/tests/baselines/reference/modifierOnClassDeclarationMemberInFunction.js
index 464e0c6f37be0..634f21cc55ae4 100644
--- a/tests/baselines/reference/modifierOnClassDeclarationMemberInFunction.js
+++ b/tests/baselines/reference/modifierOnClassDeclarationMemberInFunction.js
@@ -8,6 +8,20 @@ function f() {
 }
 
 //// [modifierOnClassDeclarationMemberInFunction.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f() {
     var C = (function () {
         function C() {
@@ -15,6 +29,7 @@ function f() {
         }
         C.foo = function () { };
         C.prototype.bar = function () { };
+        __names(C.prototype, ["bar"]);
         return C;
     }());
 }
diff --git a/tests/baselines/reference/modifierOnClassExpressionMemberInFunction.js b/tests/baselines/reference/modifierOnClassExpressionMemberInFunction.js
index 3403a376d42dd..f4fac0f61abab 100644
--- a/tests/baselines/reference/modifierOnClassExpressionMemberInFunction.js
+++ b/tests/baselines/reference/modifierOnClassExpressionMemberInFunction.js
@@ -8,12 +8,27 @@ function g() {
 }
 
 //// [modifierOnClassExpressionMemberInFunction.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function g() {
     var x = (_a = (function () {
             function C() {
                 this.prop1 = 1;
             }
             C.prototype.foo = function () { };
+            __names(C.prototype, ["foo"]);
             return C;
         }()),
         _a.prop2 = 43,
diff --git a/tests/baselines/reference/moduleAliasInterface.js b/tests/baselines/reference/moduleAliasInterface.js
index 2dee62dcca0f8..051a2ac7c31bc 100644
--- a/tests/baselines/reference/moduleAliasInterface.js
+++ b/tests/baselines/reference/moduleAliasInterface.js
@@ -56,6 +56,20 @@ module B1 {
 
 
 //// [moduleAliasInterface.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var _modes;
 (function (_modes) {
     var Mode = (function () {
@@ -75,6 +89,7 @@ var editor;
         } // should be an error on p2 - it's not exported
         Bug.prototype.foo = function (p1) {
         };
+        __names(Bug.prototype, ["foo"]);
         return Bug;
     }());
 })(editor || (editor = {}));
diff --git a/tests/baselines/reference/moduleCodeGenTest5.js b/tests/baselines/reference/moduleCodeGenTest5.js
index ee6fd2ab3176b..cf34adbe61289 100644
--- a/tests/baselines/reference/moduleCodeGenTest5.js
+++ b/tests/baselines/reference/moduleCodeGenTest5.js
@@ -23,6 +23,20 @@ var v = E2.B;
 
 //// [moduleCodeGenTest5.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 exports.x = 0;
 var y = 0;
@@ -34,6 +48,7 @@ var C1 = (function () {
         this.p1 = 0;
     }
     C1.prototype.p2 = function () { };
+    __names(C1.prototype, ["p2"]);
     return C1;
 }());
 exports.C1 = C1;
@@ -42,6 +57,7 @@ var C2 = (function () {
         this.p1 = 0;
     }
     C2.prototype.p2 = function () { };
+    __names(C2.prototype, ["p2"]);
     return C2;
 }());
 var E1;
diff --git a/tests/baselines/reference/moduleMemberWithoutTypeAnnotation1.js b/tests/baselines/reference/moduleMemberWithoutTypeAnnotation1.js
index e0e95b3c72b65..63ed994c03f17 100644
--- a/tests/baselines/reference/moduleMemberWithoutTypeAnnotation1.js
+++ b/tests/baselines/reference/moduleMemberWithoutTypeAnnotation1.js
@@ -47,6 +47,20 @@ module TypeScript.Syntax {
 
 
 //// [moduleMemberWithoutTypeAnnotation1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var TypeScript;
 (function (TypeScript) {
     var Parser;
@@ -57,6 +71,7 @@ var TypeScript;
             SyntaxCursor.prototype.currentNode = function () {
                 return null;
             };
+            __names(SyntaxCursor.prototype, ["currentNode"]);
             return SyntaxCursor;
         }());
     })(Parser = TypeScript.Parser || (TypeScript.Parser = {}));
@@ -70,6 +85,7 @@ var TypeScript;
         PositionedElement.prototype.childIndex = function (child) {
             return TypeScript.Syntax.childIndex();
         };
+        __names(PositionedElement.prototype, ["childIndex"]);
         return PositionedElement;
     }());
     TypeScript.PositionedElement = PositionedElement;
@@ -92,6 +108,7 @@ var TypeScript;
         SyntaxNode.prototype.findTokenInternal = function (x, y, z) {
             return null;
         };
+        __names(SyntaxNode.prototype, ["findToken", "findTokenInternal"]);
         return SyntaxNode;
     }());
     TypeScript.SyntaxNode = SyntaxNode;
@@ -107,6 +124,7 @@ var TypeScript;
             VariableWidthTokenWithTrailingTrivia.prototype.findTokenInternal = function (parent, position, fullStart) {
                 return new TypeScript.PositionedToken(parent, this, fullStart);
             };
+            __names(VariableWidthTokenWithTrailingTrivia.prototype, ["findTokenInternal"]);
             return VariableWidthTokenWithTrailingTrivia;
         }());
         Syntax.VariableWidthTokenWithTrailingTrivia = VariableWidthTokenWithTrailingTrivia;
diff --git a/tests/baselines/reference/moduleMerge.js b/tests/baselines/reference/moduleMerge.js
index 4e5aac120fc96..1fe47289ed18e 100644
--- a/tests/baselines/reference/moduleMerge.js
+++ b/tests/baselines/reference/moduleMerge.js
@@ -25,6 +25,20 @@ module A
 
 //// [moduleMerge.js]
 // This should not compile both B classes are in the same module this should be a collission
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A;
 (function (A) {
     var B = (function () {
@@ -33,6 +47,7 @@ var A;
         B.prototype.Hello = function () {
             return "from private B";
         };
+        __names(B.prototype, ["Hello"]);
         return B;
     }());
 })(A || (A = {}));
@@ -43,6 +58,7 @@ var A;
         B.prototype.Hello = function () {
             return "from export B";
         };
+        __names(B.prototype, ["Hello"]);
         return B;
     }());
     A.B = B;
diff --git a/tests/baselines/reference/moduleNewExportBug.js b/tests/baselines/reference/moduleNewExportBug.js
index b48f6dd73b07c..f192058b2841d 100644
--- a/tests/baselines/reference/moduleNewExportBug.js
+++ b/tests/baselines/reference/moduleNewExportBug.js
@@ -14,12 +14,27 @@ var c : mod1.C; // ERROR: C should not be visible
 
 
 //// [moduleNewExportBug.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var mod1;
 (function (mod1) {
     var C = (function () {
         function C() {
         }
         C.prototype.moo = function () { };
+        __names(C.prototype, ["moo"]);
         return C;
     }());
 })(mod1 || (mod1 = {}));
diff --git a/tests/baselines/reference/moduleReopenedTypeOtherBlock.js b/tests/baselines/reference/moduleReopenedTypeOtherBlock.js
index 007090a0c1178..d6522168aaeb9 100644
--- a/tests/baselines/reference/moduleReopenedTypeOtherBlock.js
+++ b/tests/baselines/reference/moduleReopenedTypeOtherBlock.js
@@ -9,6 +9,20 @@ module M {
 
 
 //// [moduleReopenedTypeOtherBlock.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var C1 = (function () {
@@ -23,6 +37,7 @@ var M;
         function C2() {
         }
         C2.prototype.f = function () { return null; };
+        __names(C2.prototype, ["f"]);
         return C2;
     }());
     M.C2 = C2;
diff --git a/tests/baselines/reference/moduleReopenedTypeSameBlock.js b/tests/baselines/reference/moduleReopenedTypeSameBlock.js
index 07b5e8e657eb3..21b2c926a5b0f 100644
--- a/tests/baselines/reference/moduleReopenedTypeSameBlock.js
+++ b/tests/baselines/reference/moduleReopenedTypeSameBlock.js
@@ -7,6 +7,20 @@ module M {
 
 
 //// [moduleReopenedTypeSameBlock.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var C1 = (function () {
@@ -21,6 +35,7 @@ var M;
         function C2() {
         }
         C2.prototype.f = function () { return null; };
+        __names(C2.prototype, ["f"]);
         return C2;
     }());
     M.C2 = C2;
diff --git a/tests/baselines/reference/moduleVisibilityTest1.js b/tests/baselines/reference/moduleVisibilityTest1.js
index 1bae7ecfd1fc2..d42cc12fd8a98 100644
--- a/tests/baselines/reference/moduleVisibilityTest1.js
+++ b/tests/baselines/reference/moduleVisibilityTest1.js
@@ -66,6 +66,20 @@ c.someMethodThatCallsAnOuterMethod();
 
 
 //// [moduleVisibilityTest1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var OuterMod;
 (function (OuterMod) {
     function someExportedOuterFunc() { return -1; }
@@ -108,6 +122,7 @@ var M;
         C.prototype.someMethodThatCallsAnInnerMethod = function () { return InnerMod.someExportedInnerFunc(); };
         C.prototype.someMethodThatCallsAnOuterInnerMethod = function () { return OuterMod.someExportedOuterFunc(); };
         C.prototype.someMethod = function () { return 0; };
+        __names(C.prototype, ["someMethodThatCallsAnOuterMethod", "someMethodThatCallsAnInnerMethod", "someMethodThatCallsAnOuterInnerMethod", "someMethod"]);
         return C;
     }());
     M.C = C;
diff --git a/tests/baselines/reference/moduleVisibilityTest2.js b/tests/baselines/reference/moduleVisibilityTest2.js
index b40d1721b6531..f4c5266a0e017 100644
--- a/tests/baselines/reference/moduleVisibilityTest2.js
+++ b/tests/baselines/reference/moduleVisibilityTest2.js
@@ -67,6 +67,20 @@ c.someMethodThatCallsAnOuterMethod();
 
 
 //// [moduleVisibilityTest2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var OuterMod;
 (function (OuterMod) {
     function someExportedOuterFunc() { return -1; }
@@ -109,6 +123,7 @@ var M;
         C.prototype.someMethodThatCallsAnInnerMethod = function () { return InnerMod.someExportedInnerFunc(); };
         C.prototype.someMethodThatCallsAnOuterInnerMethod = function () { return OuterMod.someExportedOuterFunc(); };
         C.prototype.someMethod = function () { return 0; };
+        __names(C.prototype, ["someMethodThatCallsAnOuterMethod", "someMethodThatCallsAnInnerMethod", "someMethodThatCallsAnOuterInnerMethod", "someMethod"]);
         return C;
     }());
     M.C = C;
diff --git a/tests/baselines/reference/moduledecl.js b/tests/baselines/reference/moduledecl.js
index b2dd3caaf3512..33d213f097a57 100644
--- a/tests/baselines/reference/moduledecl.js
+++ b/tests/baselines/reference/moduledecl.js
@@ -233,6 +233,20 @@ var m3eVar: mAmbient.m3.e;
 
 
 //// [moduledecl.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var m0;
 (function (m0) {
     function f1() {
@@ -263,6 +277,7 @@ var m1;
         c1.prototype.d = function () {
             return "Hello";
         };
+        __names(c1.prototype, ["d"]);
         return c1;
     }());
     m1.c1 = c1;
@@ -312,6 +327,7 @@ var exportTests;
         C1_public.prototype.f3 = function () {
             return "string";
         };
+        __names(C1_public.prototype, ["f2", "f3"]);
         return C1_public;
     }());
     exportTests.C1_public = C1_public;
@@ -324,6 +340,7 @@ var exportTests;
         C2_private.prototype.f3 = function () {
             return "string";
         };
+        __names(C2_private.prototype, ["f2", "f3"]);
         return C2_private;
     }());
     var C3_public = (function () {
@@ -353,6 +370,7 @@ var exportTests;
             enumerable: true,
             configurable: true
         });
+        __names(C3_public.prototype, ["getC2_private", "setC2_private", "getC1_public", "setC1_public"]);
         return C3_public;
     }());
     exportTests.C3_public = C3_public;
diff --git a/tests/baselines/reference/multiImportExport.js b/tests/baselines/reference/multiImportExport.js
index 07e353cb301b2..6a5d15c6484c7 100644
--- a/tests/baselines/reference/multiImportExport.js
+++ b/tests/baselines/reference/multiImportExport.js
@@ -27,11 +27,26 @@ export = Adder;
 
 //// [Adder.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Adder = (function () {
     function Adder() {
     }
     Adder.prototype.add = function (a, b) {
     };
+    __names(Adder.prototype, ["add"]);
     return Adder;
 }());
 module.exports = Adder;
diff --git a/tests/baselines/reference/multiModuleClodule1.js b/tests/baselines/reference/multiModuleClodule1.js
index eac6bfa8d51a0..4f28b85a9ff86 100644
--- a/tests/baselines/reference/multiModuleClodule1.js
+++ b/tests/baselines/reference/multiModuleClodule1.js
@@ -19,12 +19,27 @@ var c = new C(C.x);
 c.foo = C.foo;
 
 //// [multiModuleClodule1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(x) {
     }
     C.prototype.foo = function () { };
     C.prototype.bar = function () { };
     C.boo = function () { };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }());
 (function (C) {
diff --git a/tests/baselines/reference/multipleDeclarations.js b/tests/baselines/reference/multipleDeclarations.js
index 7fb7e0bca026f..19ee0cef10070 100644
--- a/tests/baselines/reference/multipleDeclarations.js
+++ b/tests/baselines/reference/multipleDeclarations.js
@@ -36,6 +36,20 @@ y.mistake();
 
 
 //// [output.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function C() {
     this.m = null;
 }
@@ -51,6 +65,7 @@ var X = (function () {
     };
     X.prototype.mistake = function () {
     };
+    __names(X.prototype, ["m", "mistake"]);
     return X;
 }());
 var x = new X();
@@ -66,6 +81,7 @@ var Y = (function () {
     };
     Y.prototype.m = function () {
     };
+    __names(Y.prototype, ["mistake", "m"]);
     return Y;
 }());
 Y.prototype.mistake = true;
diff --git a/tests/baselines/reference/multipleInheritance.js b/tests/baselines/reference/multipleInheritance.js
index 59abc8cd469e7..94a7e30402721 100644
--- a/tests/baselines/reference/multipleInheritance.js
+++ b/tests/baselines/reference/multipleInheritance.js
@@ -49,6 +49,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var B1 = (function () {
     function B1() {
     }
@@ -104,6 +118,7 @@ var Good = (function () {
         this.f = function () { return 0; };
     }
     Good.prototype.g = function () { return 0; };
+    __names(Good.prototype, ["g"]);
     return Good;
 }());
 var Baad = (function (_super) {
@@ -113,5 +128,6 @@ var Baad = (function (_super) {
     }
     Baad.prototype.f = function () { return 0; };
     Baad.prototype.g = function (n) { return 0; };
+    __names(Baad.prototype, ["f", "g"]);
     return Baad;
 }(Good));
diff --git a/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js b/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js
index 7977134b2ed94..44f6799a035c5 100644
--- a/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js
+++ b/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js
@@ -11,6 +11,20 @@ var test = new foo<string>();
 
 
 //// [mutuallyRecursiveGenericBaseTypes2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -25,6 +39,7 @@ var foo = (function () {
     function foo() {
     }
     foo.prototype.bar = function () { return null; };
+    __names(foo.prototype, ["bar"]);
     return foo;
 }());
 var foo2 = (function (_super) {
diff --git a/tests/baselines/reference/narrowTypeByInstanceof.js b/tests/baselines/reference/narrowTypeByInstanceof.js
index 0415c72b9fd76..effd065ceba55 100644
--- a/tests/baselines/reference/narrowTypeByInstanceof.js
+++ b/tests/baselines/reference/narrowTypeByInstanceof.js
@@ -26,12 +26,27 @@ if (elementA instanceof FileMatch && elementB instanceof FileMatch) {
 
 
 //// [narrowTypeByInstanceof.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Match = (function () {
     function Match() {
     }
     Match.prototype.range = function () {
         return undefined;
     };
+    __names(Match.prototype, ["range"]);
     return Match;
 }());
 var FileMatch = (function () {
@@ -40,6 +55,7 @@ var FileMatch = (function () {
     FileMatch.prototype.resource = function () {
         return undefined;
     };
+    __names(FileMatch.prototype, ["resource"]);
     return FileMatch;
 }());
 var elementA, elementB;
diff --git a/tests/baselines/reference/narrowedConstInMethod.js b/tests/baselines/reference/narrowedConstInMethod.js
index e86b6df6a460b..83f7680a9993a 100644
--- a/tests/baselines/reference/narrowedConstInMethod.js
+++ b/tests/baselines/reference/narrowedConstInMethod.js
@@ -20,6 +20,20 @@ function f2() {
 
 
 //// [narrowedConstInMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // Fixes #10501, possibly null 'x'
 function f() {
     var x = {};
@@ -36,6 +50,7 @@ function f2() {
             function class_1() {
             }
             class_1.prototype.bar = function () { return x.length; }; // ok
+            __names(class_1.prototype, ["bar"]);
             return class_1;
         }());
     }
diff --git a/tests/baselines/reference/nestedLoops.js b/tests/baselines/reference/nestedLoops.js
index 6b01eae55cd9e..41ae7693dfb0c 100644
--- a/tests/baselines/reference/nestedLoops.js
+++ b/tests/baselines/reference/nestedLoops.js
@@ -19,6 +19,20 @@ export class Test  {
 
 //// [nestedLoops.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 Object.defineProperty(exports, "__esModule", { value: true });
 var Test = (function () {
     function Test() {
@@ -43,6 +57,7 @@ var Test = (function () {
     }
     Test.prototype.aFunction = function (func) {
     };
+    __names(Test.prototype, ["aFunction"]);
     return Test;
 }());
 exports.Test = Test;
diff --git a/tests/baselines/reference/nestedSelf.js b/tests/baselines/reference/nestedSelf.js
index ea6abc8e1e8fc..80a6aa2c1ab85 100644
--- a/tests/baselines/reference/nestedSelf.js
+++ b/tests/baselines/reference/nestedSelf.js
@@ -9,6 +9,20 @@ module M {
 
 
 //// [nestedSelf.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var C = (function () {
@@ -19,6 +33,7 @@ var M;
             var _this = this;
             [1, 2, 3].map(function (x) { return _this.n * x; });
         };
+        __names(C.prototype, ["foo"]);
         return C;
     }());
     M.C = C;
diff --git a/tests/baselines/reference/neverType.js b/tests/baselines/reference/neverType.js
index e21a2fedf8ecc..4043194256caf 100644
--- a/tests/baselines/reference/neverType.js
+++ b/tests/baselines/reference/neverType.js
@@ -91,6 +91,20 @@ test(errorCallback);
 
 
 //// [neverType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function error(message) {
     throw new Error(message);
 }
@@ -146,6 +160,7 @@ var C = (function () {
     C.prototype.never2 = function () {
         while (true) { }
     };
+    __names(C.prototype, ["void1", "void2", "never1", "never2"]);
     return C;
 }());
 function f1(x) {
diff --git a/tests/baselines/reference/newArrays.js b/tests/baselines/reference/newArrays.js
index d156ee24f1c13..a8a7789caec1d 100644
--- a/tests/baselines/reference/newArrays.js
+++ b/tests/baselines/reference/newArrays.js
@@ -13,6 +13,20 @@ module M {
 }
 
 //// [newArrays.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var Foo = (function () {
@@ -28,6 +42,7 @@ var M;
         Gar.prototype.m = function () {
             this.fa = new Array(this.x * this.y);
         };
+        __names(Gar.prototype, ["m"]);
         return Gar;
     }());
 })(M || (M = {}));
diff --git a/tests/baselines/reference/noCollisionThisExpressionAndLocalVarInMethod.js b/tests/baselines/reference/noCollisionThisExpressionAndLocalVarInMethod.js
index b7fdfc5a49d5d..add229d862f6a 100644
--- a/tests/baselines/reference/noCollisionThisExpressionAndLocalVarInMethod.js
+++ b/tests/baselines/reference/noCollisionThisExpressionAndLocalVarInMethod.js
@@ -20,6 +20,20 @@ class a {
 }
 
 //// [noCollisionThisExpressionAndLocalVarInMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var _this = 2;
 var a = (function () {
     function a() {
@@ -40,5 +54,6 @@ var a = (function () {
             }; }
         };
     };
+    __names(a.prototype, ["method1", "method2"]);
     return a;
 }());
diff --git a/tests/baselines/reference/noImplicitAnyDestructuringInPrivateMethod.js b/tests/baselines/reference/noImplicitAnyDestructuringInPrivateMethod.js
index 63788fd860ffe..8f98404eabb37 100644
--- a/tests/baselines/reference/noImplicitAnyDestructuringInPrivateMethod.js
+++ b/tests/baselines/reference/noImplicitAnyDestructuringInPrivateMethod.js
@@ -13,6 +13,20 @@ export declare class Bar2 {
 
 //// [noImplicitAnyDestructuringInPrivateMethod.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Bar = (function () {
     function Bar() {
@@ -21,6 +35,7 @@ var Bar = (function () {
         var a = _a.a;
         return a;
     };
+    __names(Bar.prototype, ["bar"]);
     return Bar;
 }());
 exports.Bar = Bar;
diff --git a/tests/baselines/reference/noImplicitAnyForMethodParameters.js b/tests/baselines/reference/noImplicitAnyForMethodParameters.js
index ea868ee7503a2..ba103f863c399 100644
--- a/tests/baselines/reference/noImplicitAnyForMethodParameters.js
+++ b/tests/baselines/reference/noImplicitAnyForMethodParameters.js
@@ -15,15 +15,31 @@ class D {
 }
 
 //// [noImplicitAnyForMethodParameters.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (a) { }; // OK - non-ambient class and private method - error
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function () {
     function D() {
     }
     D.prototype.foo = function (a) { }; // OK - non-ambient class and public method - error
+    __names(D.prototype, ["foo"]);
     return D;
 }());
diff --git a/tests/baselines/reference/noImplicitAnyParametersInClass.js b/tests/baselines/reference/noImplicitAnyParametersInClass.js
index 648f93dccdc28..6b46d090091a5 100644
--- a/tests/baselines/reference/noImplicitAnyParametersInClass.js
+++ b/tests/baselines/reference/noImplicitAnyParametersInClass.js
@@ -92,6 +92,20 @@ class C {
 }
 
 //// [noImplicitAnyParametersInClass.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
         // No implicit-'any' errors.
@@ -194,5 +208,6 @@ var C = (function () {
         }
     };
     C.prototype.priv_f8 = function (x3, y3) { };
+    __names(C.prototype, ["pub_f1", "pub_f2", "pub_f3", "pub_f4", "pub_f5", "pub_f6", "pub_f7", "pub_f8", "priv_f1", "priv_f2", "priv_f3", "priv_f4", "priv_f5", "priv_f6", "priv_f7", "priv_f8"]);
     return C;
 }());
diff --git a/tests/baselines/reference/noTypeArgumentOnReturnType1.js b/tests/baselines/reference/noTypeArgumentOnReturnType1.js
index 7ede1e57c3e56..0a6c0cab192bd 100644
--- a/tests/baselines/reference/noTypeArgumentOnReturnType1.js
+++ b/tests/baselines/reference/noTypeArgumentOnReturnType1.js
@@ -7,11 +7,26 @@ class A<T>{
 }
 
 //// [noTypeArgumentOnReturnType1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () {
         return null;
     };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
diff --git a/tests/baselines/reference/nonMergedDeclarationsAndOverloads.js b/tests/baselines/reference/nonMergedDeclarationsAndOverloads.js
index d4ac9685f6171..d4d5574751339 100644
--- a/tests/baselines/reference/nonMergedDeclarationsAndOverloads.js
+++ b/tests/baselines/reference/nonMergedDeclarationsAndOverloads.js
@@ -9,11 +9,26 @@ class A {
 }
 
 //// [nonMergedDeclarationsAndOverloads.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.f = function () { };
     A.prototype.m1 = function (a) {
     };
+    __names(A.prototype, ["f", "m1"]);
     return A;
 }());
diff --git a/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations.js b/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations.js
index 33a03705965c5..747bb47e73ced 100644
--- a/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations.js
+++ b/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations.js
@@ -99,6 +99,20 @@ var b: { [x: number]: string; } = {
 
 //// [numericIndexerConstrainsPropertyDeclarations.js]
 // String indexer types constrain the types of named properties in their containing type
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     } // ok
@@ -122,6 +136,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js b/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js
index 9e501b5d92c3e..0ca16f8dc91c8 100644
--- a/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js
+++ b/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js
@@ -47,6 +47,20 @@ var b: { [x: number]: A } = {
 
 //// [numericIndexerConstrainsPropertyDeclarations2.js]
 // String indexer providing a constraint of a user defined type
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -61,6 +75,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { return ''; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -69,6 +84,7 @@ var B = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     B.prototype.bar = function () { return ''; };
+    __names(B.prototype, ["bar"]);
     return B;
 }(A));
 var Foo = (function () {
diff --git a/tests/baselines/reference/numericIndexerConstraint1.js b/tests/baselines/reference/numericIndexerConstraint1.js
index 1065f7d9dc885..8598b71c118d1 100644
--- a/tests/baselines/reference/numericIndexerConstraint1.js
+++ b/tests/baselines/reference/numericIndexerConstraint1.js
@@ -5,10 +5,25 @@ var result: Foo = x["one"]; // error
 
 
 //// [numericIndexerConstraint1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
     Foo.prototype.foo = function () { };
+    __names(Foo.prototype, ["foo"]);
     return Foo;
 }());
 var x;
diff --git a/tests/baselines/reference/numericIndexerConstraint2.js b/tests/baselines/reference/numericIndexerConstraint2.js
index a8063a2548d60..feaba238cc044 100644
--- a/tests/baselines/reference/numericIndexerConstraint2.js
+++ b/tests/baselines/reference/numericIndexerConstraint2.js
@@ -5,10 +5,25 @@ var a: { one: number; };
 x = a;
 
 //// [numericIndexerConstraint2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
     Foo.prototype.foo = function () { };
+    __names(Foo.prototype, ["foo"]);
     return Foo;
 }());
 var x;
diff --git a/tests/baselines/reference/objectCreationOfElementAccessExpression.js b/tests/baselines/reference/objectCreationOfElementAccessExpression.js
index 72645662e01da..d1dc0daeb131f 100644
--- a/tests/baselines/reference/objectCreationOfElementAccessExpression.js
+++ b/tests/baselines/reference/objectCreationOfElementAccessExpression.js
@@ -56,6 +56,20 @@ var foods2: MonsterFood[] = new PetFood[new IceCream('Mint chocolate chip') , Co
 
 
 //// [objectCreationOfElementAccessExpression.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -81,6 +95,7 @@ var Food = (function () {
             return true;
         }
     };
+    __names(Food.prototype, ["eat"]);
     return Food;
 }());
 var MonsterFood = (function (_super) {
diff --git a/tests/baselines/reference/objectRestParameterES5.js b/tests/baselines/reference/objectRestParameterES5.js
index d16a0c68df0de..333c52710cae0 100644
--- a/tests/baselines/reference/objectRestParameterES5.js
+++ b/tests/baselines/reference/objectRestParameterES5.js
@@ -22,6 +22,20 @@ foobar({ bar: { greeting: 'hello' } });
 
 
 //// [objectRestParameterES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __rest = (this && this.__rest) || function (s, e) {
     var t = {};
     for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
@@ -58,6 +72,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, ["m"]);
     return C;
 }());
 function foobar(_a) {
diff --git a/tests/baselines/reference/objectSpread.js b/tests/baselines/reference/objectSpread.js
index 2bc3b9e11bd8f..56e49cdb9f18b 100644
--- a/tests/baselines/reference/objectSpread.js
+++ b/tests/baselines/reference/objectSpread.js
@@ -83,6 +83,20 @@ let spreadNonPrimitive = { ...<object>{}};
 
 
 //// [objectSpread.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __assign = (this && this.__assign) || Object.assign || function(t) {
     for (var s, i = 1, n = arguments.length; i < n; i++) {
         s = arguments[i];
@@ -123,6 +137,7 @@ var C = (function () {
         this.p = 1;
     }
     C.prototype.m = function () { };
+    __names(C.prototype, ["m"]);
     return C;
 }());
 var c = new C();
diff --git a/tests/baselines/reference/objectSpreadNegative.js b/tests/baselines/reference/objectSpreadNegative.js
index 0cc93692b595d..8c8d65110a83c 100644
--- a/tests/baselines/reference/objectSpreadNegative.js
+++ b/tests/baselines/reference/objectSpreadNegative.js
@@ -85,6 +85,20 @@ const a3: A = { ...extra3 }; // same here
 
 
 //// [objectSpreadNegative.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __assign = (this && this.__assign) || Object.assign || function(t) {
     for (var s, i = 1, n = arguments.length; i < n; i++) {
         s = arguments[i];
@@ -142,6 +156,7 @@ var C = (function () {
         this.p = 1;
     }
     C.prototype.m = function () { };
+    __names(C.prototype, ["m"]);
     return C;
 }());
 var c = new C();
diff --git a/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js b/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js
index 22a852e156c57..b8d90e27d8949 100644
--- a/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js
+++ b/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js
@@ -65,6 +65,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -81,6 +95,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.valueOf = function () { };
+    __names(C.prototype, ["valueOf"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/objectTypeHidingMembersOfObject.js b/tests/baselines/reference/objectTypeHidingMembersOfObject.js
index bae6b56ff38b3..4e1bfbad11fe5 100644
--- a/tests/baselines/reference/objectTypeHidingMembersOfObject.js
+++ b/tests/baselines/reference/objectTypeHidingMembersOfObject.js
@@ -29,10 +29,25 @@ var r4: void = b.valueOf();
 
 //// [objectTypeHidingMembersOfObject.js]
 // all of these valueOf calls should return the type shown in the overriding signatures here
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.valueOf = function () { };
+    __names(C.prototype, ["valueOf"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat.js b/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat.js
index 65fc548ed6e6d..65bebfd628657 100644
--- a/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat.js
+++ b/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat.js
@@ -22,6 +22,20 @@ o = a; // error
 a = o; // ok
 
 //// [objectTypeHidingMembersOfObjectAssignmentCompat.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var i;
 var o;
 o = i; // error
@@ -30,6 +44,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.toString = function () { };
+    __names(C.prototype, ["toString"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat2.js b/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat2.js
index 6898e69cedc03..0fbc932027327 100644
--- a/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat2.js
+++ b/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat2.js
@@ -22,6 +22,20 @@ o = a; // error
 a = o; // ok
 
 //// [objectTypeHidingMembersOfObjectAssignmentCompat2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var i;
 var o;
 o = i; // error
@@ -30,6 +44,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.toString = function () { return 1; };
+    __names(C.prototype, ["toString"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/objectTypesIdentityWithCallSignatures.js b/tests/baselines/reference/objectTypesIdentityWithCallSignatures.js
index a3e1e4fa4444c..01a3178b198b0 100644
--- a/tests/baselines/reference/objectTypesIdentityWithCallSignatures.js
+++ b/tests/baselines/reference/objectTypesIdentityWithCallSignatures.js
@@ -102,22 +102,39 @@ function foo15(x: any) { }
 
 //// [objectTypesIdentityWithCallSignatures.js]
 // object types are identical structurally
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithCallSignatures2.js b/tests/baselines/reference/objectTypesIdentityWithCallSignatures2.js
index 3b6956435f9b4..a50c1b0a4d6cb 100644
--- a/tests/baselines/reference/objectTypesIdentityWithCallSignatures2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithCallSignatures2.js
@@ -102,22 +102,39 @@ function foo15(x: any) { }
 
 //// [objectTypesIdentityWithCallSignatures2.js]
 // object types are identical structurally
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithCallSignaturesDifferingParamCounts.js b/tests/baselines/reference/objectTypesIdentityWithCallSignaturesDifferingParamCounts.js
index a9909c7283ff8..af45d5726e1a5 100644
--- a/tests/baselines/reference/objectTypesIdentityWithCallSignaturesDifferingParamCounts.js
+++ b/tests/baselines/reference/objectTypesIdentityWithCallSignaturesDifferingParamCounts.js
@@ -102,22 +102,39 @@ function foo15(x: any) { }
 
 //// [objectTypesIdentityWithCallSignaturesDifferingParamCounts.js]
 // object types are identical structurally
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x, y) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x, y) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithCallSignaturesWithOverloads.js b/tests/baselines/reference/objectTypesIdentityWithCallSignaturesWithOverloads.js
index 3f72347a00f47..8e17c0def5f99 100644
--- a/tests/baselines/reference/objectTypesIdentityWithCallSignaturesWithOverloads.js
+++ b/tests/baselines/reference/objectTypesIdentityWithCallSignaturesWithOverloads.js
@@ -118,22 +118,39 @@ function foo15(x: any) { }
 
 //// [objectTypesIdentityWithCallSignaturesWithOverloads.js]
 // object types are identical structurally
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures.js
index 2289665621c92..6052c106f0f05 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures.js
@@ -102,22 +102,39 @@ function foo15(x: any) { }
 
 //// [objectTypesIdentityWithGenericCallSignatures.js]
 // object types are identical structurally
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures2.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures2.js
index d6a61b8d304a8..93460429a25f7 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures2.js
@@ -102,22 +102,39 @@ function foo15(x: any) { }
 
 //// [objectTypesIdentityWithGenericCallSignatures2.js]
 // object types are identical structurally
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x, y) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x, y) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x, y) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints.js
index a1b383a70e309..c456df6bb95ff 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints.js
@@ -106,22 +106,39 @@ function foo15(x: any) { }
 // Two call or construct signatures are considered identical when they have the same number of type parameters and, considering those 
 // parameters pairwise identical, have identical type parameter constraints, identical number of parameters with identical kind(required, 
 // optional or rest) and types, and identical return types.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints2.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints2.js
index fbcba9d121e12..edae16682f362 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints2.js
@@ -118,28 +118,46 @@ function foo15(x: any) { }
 // Two call or construct signatures are considered identical when they have the same number of type parameters and, considering those 
 // parameters pairwise identical, have identical type parameter constraints, identical number of parameters with identical kind(required, 
 // optional or rest) and types, and identical return types.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x, y) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x, y) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x, y) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function () {
     function D() {
     }
     D.prototype.foo = function (x, y) { return null; };
+    __names(D.prototype, ["foo"]);
     return D;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints3.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints3.js
index 48131af3212f3..6055e11b5e091 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints3.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints3.js
@@ -127,6 +127,20 @@ function foo15(x: any) { }
 // Two call or construct signatures are considered identical when they have the same number of type parameters and, considering those 
 // parameters pairwise identical, have identical type parameter constraints, identical number of parameters with identical kind(required, 
 // optional or rest) and types, and identical return types.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var One = (function () {
     function One() {
     }
@@ -141,24 +155,28 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x, y) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x, y) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x, y) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function () {
     function D() {
     }
     D.prototype.foo = function (x, y) { return null; };
+    __names(D.prototype, ["foo"]);
     return D;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType.js
index 43147c28f55a6..1969f5b6ef739 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType.js
@@ -106,22 +106,39 @@ function foo15(x: any) { }
 // Two call or construct signatures are considered identical when they have the same number of type parameters and, considering those 
 // parameters pairwise identical, have identical type parameter constraints, identical number of parameters with identical kind(required, 
 // optional or rest) and types, and identical return types.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType2.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType2.js
index c3758bc6c08e5..79258ae678ae9 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType2.js
@@ -106,22 +106,39 @@ function foo15(x: any) { }
 // Two call or construct signatures are considered identical when they have the same number of type parameters and, considering those 
 // parameters pairwise identical, have identical type parameter constraints, identical number of parameters with identical kind(required, 
 // optional or rest) and types, and identical return types.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterCounts.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterCounts.js
index de6a4724cd707..41ccc9db1a792 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterCounts.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterCounts.js
@@ -102,22 +102,39 @@ function foo15(x: any) { }
 
 //// [objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterCounts.js]
 // object types are identical structurally
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterNames.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterNames.js
index c27f7095d16d2..6d6814a8c59f5 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterNames.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterNames.js
@@ -102,22 +102,39 @@ function foo15(x: any) { }
 
 //// [objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterNames.js]
 // object types are identical structurally
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams.js
index 327cc15eddbd7..004ebd9f4d8b2 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams.js
@@ -106,22 +106,39 @@ function foo15(x: any) { }
 // Two call or construct signatures are considered identical when they have the same number of type parameters and, considering those 
 // parameters pairwise identical, have identical type parameter constraints, identical number of parameters with identical kind(required, 
 // optional or rest) and types, and identical return types.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x, y) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x, y) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x, y) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams2.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams2.js
index 753548bc360e7..3a4f0f84a7a2c 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams2.js
@@ -106,22 +106,39 @@ function foo15(x: any) { }
 // Two call or construct signatures are considered identical when they have the same number of type parameters and, considering those 
 // parameters pairwise identical, have identical type parameter constraints, identical number of parameters with identical kind(required, 
 // optional or rest) and types, and identical return types.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x, y) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x, y) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x, y) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams3.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams3.js
index da4bb20591bf9..e6b76b836f5a3 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams3.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams3.js
@@ -106,22 +106,39 @@ function foo15(x: any) { }
 // Two call or construct signatures are considered identical when they have the same number of type parameters and, considering those 
 // parameters pairwise identical, have identical type parameter constraints, identical number of parameters with identical kind(required, 
 // optional or rest) and types, and identical return types.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function (x, y) { return null; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
     function B() {
     }
     B.prototype.foo = function (x, y) { return null; };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x, y) { return null; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/objectTypesWithOptionalProperties2.js b/tests/baselines/reference/objectTypesWithOptionalProperties2.js
index 1612e6785c70e..105b84f8665df 100644
--- a/tests/baselines/reference/objectTypesWithOptionalProperties2.js
+++ b/tests/baselines/reference/objectTypesWithOptionalProperties2.js
@@ -28,17 +28,33 @@ var b = {
 
 //// [objectTypesWithOptionalProperties2.js]
 // Illegal attempts to define optional methods
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var a;
 var C = (function () {
     function C() {
     }
     C.prototype.x = function () { };
+    __names(C.prototype, ["x"]);
     return C;
 }());
 var C2 = (function () {
     function C2() {
     }
     C2.prototype.x = function () { };
+    __names(C2.prototype, ["x"]);
     return C2;
 }());
 var b = {
diff --git a/tests/baselines/reference/optionalArgsWithDefaultValues.js b/tests/baselines/reference/optionalArgsWithDefaultValues.js
index b2bdc7a9a658c..2df38f084d9f1 100644
--- a/tests/baselines/reference/optionalArgsWithDefaultValues.js
+++ b/tests/baselines/reference/optionalArgsWithDefaultValues.js
@@ -10,6 +10,20 @@ var a = (x?=0) => { return 1; };
 var b = (x, y?:number = 2) => { x; };
 
 //// [optionalArgsWithDefaultValues.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x, y, z) {
     if (y === void 0) { y = false; }
     if (z === void 0) { z = 0; }
@@ -25,6 +39,7 @@ var CCC = (function () {
         if (y === void 0) { y = false; }
         if (z === void 0) { z = 0; }
     };
+    __names(CCC.prototype, ["foo"]);
     return CCC;
 }());
 var a = function (x) {
diff --git a/tests/baselines/reference/optionalConstructorArgInSuper.js b/tests/baselines/reference/optionalConstructorArgInSuper.js
index 2412ce67ffe9c..a321412c28324 100644
--- a/tests/baselines/reference/optionalConstructorArgInSuper.js
+++ b/tests/baselines/reference/optionalConstructorArgInSuper.js
@@ -11,6 +11,20 @@ d2.foo();
 
 
 //// [optionalConstructorArgInSuper.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -25,6 +39,7 @@ var Base = (function () {
     function Base(opt) {
     }
     Base.prototype.foo = function (other) { };
+    __names(Base.prototype, ["foo"]);
     return Base;
 }());
 var Derived = (function (_super) {
diff --git a/tests/baselines/reference/optionalMethods.js b/tests/baselines/reference/optionalMethods.js
index 2abcd20927703..2703f216d4cab 100644
--- a/tests/baselines/reference/optionalMethods.js
+++ b/tests/baselines/reference/optionalMethods.js
@@ -57,6 +57,20 @@ class Derived extends Base {
 
 
 //// [optionalMethods.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -89,6 +103,7 @@ var Bar = (function () {
     Bar.prototype.h = function () {
         return 2;
     };
+    __names(Bar.prototype, ["f", "h"]);
     return Bar;
 }());
 function test2(x) {
@@ -118,6 +133,7 @@ var Derived = (function (_super) {
         return _this;
     }
     Derived.prototype.f = function () { return 1; };
+    __names(Derived.prototype, ["f"]);
     return Derived;
 }(Base));
 
diff --git a/tests/baselines/reference/optionalParamArgsTest.js b/tests/baselines/reference/optionalParamArgsTest.js
index 5c8503a9bef77..cdb3c7a0f4620 100644
--- a/tests/baselines/reference/optionalParamArgsTest.js
+++ b/tests/baselines/reference/optionalParamArgsTest.js
@@ -125,6 +125,20 @@ fnOpt2(1, [2, 3], [1], true);
 
 //// [optionalParamArgsTest.js]
 // Optional parameter and default argument tests
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -161,6 +175,7 @@ var C1 = (function () {
         if (C1M5A2 === void 0) { C1M5A2 = 0; }
         return C1M5A1 + C1M5A2;
     };
+    __names(C1.prototype, ["C1M1", "C1M2", "C1M3", "C1M4", "C1M5", "C1M5"]);
     return C1;
 }());
 var C2 = (function (_super) {
diff --git a/tests/baselines/reference/optionalParamInOverride.js b/tests/baselines/reference/optionalParamInOverride.js
index 601cb4d6f1e16..9be1e47e0d2e3 100644
--- a/tests/baselines/reference/optionalParamInOverride.js
+++ b/tests/baselines/reference/optionalParamInOverride.js
@@ -8,6 +8,20 @@ class Y extends Z {
 
 
 //// [optionalParamInOverride.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -22,6 +36,7 @@ var Z = (function () {
     function Z() {
     }
     Z.prototype.func = function () { };
+    __names(Z.prototype, ["func"]);
     return Z;
 }());
 var Y = (function (_super) {
@@ -30,5 +45,6 @@ var Y = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Y.prototype.func = function (value) { };
+    __names(Y.prototype, ["func"]);
     return Y;
 }(Z));
diff --git a/tests/baselines/reference/out-flag.js b/tests/baselines/reference/out-flag.js
index a8c689f9736d9..2ac1ae636fe16 100644
--- a/tests/baselines/reference/out-flag.js
+++ b/tests/baselines/reference/out-flag.js
@@ -18,6 +18,20 @@ class MyClass
 
 //// [out-flag.js]
 //// @out: bin\
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // my class comments
 var MyClass = (function () {
     function MyClass() {
@@ -29,6 +43,7 @@ var MyClass = (function () {
     MyClass.prototype.SetCount = function (value) {
         //
     };
+    __names(MyClass.prototype, ["Count", "SetCount"]);
     return MyClass;
 }());
 //# sourceMappingURL=out-flag.js.map
diff --git a/tests/baselines/reference/out-flag.js.map b/tests/baselines/reference/out-flag.js.map
index 5d3af0ec652ae..aeb82811451fa 100644
--- a/tests/baselines/reference/out-flag.js.map
+++ b/tests/baselines/reference/out-flag.js.map
@@ -1,2 +1,2 @@
 //// [out-flag.js.map]
-{"version":3,"file":"out-flag.js","sourceRoot":"","sources":["out-flag.ts"],"names":[],"mappings":"AAAA,eAAe;AAEf,oBAAoB;AACpB;IAAA;IAYA,CAAC;IAVG,uBAAuB;IAChB,uBAAK,GAAZ;QAEI,MAAM,CAAC,EAAE,CAAC;IACd,CAAC;IAEM,0BAAQ,GAAf,UAAgB,KAAa;QAEzB,EAAE;IACN,CAAC;IACL,cAAC;AAAD,CAAC,AAZD,IAYC"}
\ No newline at end of file
+{"version":3,"file":"out-flag.js","sourceRoot":"","sources":["out-flag.ts"],"names":[],"mappings":"AAAA,eAAe;;;;;;;;;;;;;;;AAEf,oBAAoB;AACpB;IAAA;IAYA,CAAC;IAVG,uBAAuB;IAChB,uBAAK,GAAZ;QAEI,MAAM,CAAC,EAAE,CAAC;IACd,CAAC;IAEM,0BAAQ,GAAf,UAAgB,KAAa;QAEzB,EAAE;IACN,CAAC;;IACL,cAAC;AAAD,CAAC,AAZD,IAYC"}
\ No newline at end of file
diff --git a/tests/baselines/reference/out-flag.sourcemap.txt b/tests/baselines/reference/out-flag.sourcemap.txt
index 6bc04d8c453b2..5659e3a7bd444 100644
--- a/tests/baselines/reference/out-flag.sourcemap.txt
+++ b/tests/baselines/reference/out-flag.sourcemap.txt
@@ -11,12 +11,26 @@ sourceFile:out-flag.ts
 >>>//// @out: bin\
 1 >
 2 >^^^^^^^^^^^^^^^
-3 >               ^^^^^^->
+3 >               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
 2 >//// @out: bin\
 1 >Emitted(1, 1) Source(1, 1) + SourceIndex(0)
 2 >Emitted(1, 16) Source(1, 16) + SourceIndex(0)
 ---
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>// my class comments
 1->
 2 >^^^^^^^^^^^^^^^^^^^^
@@ -25,21 +39,21 @@ sourceFile:out-flag.ts
   >
   >
 2 >// my class comments
-1->Emitted(2, 1) Source(3, 1) + SourceIndex(0)
-2 >Emitted(2, 21) Source(3, 21) + SourceIndex(0)
+1->Emitted(16, 1) Source(3, 1) + SourceIndex(0)
+2 >Emitted(16, 21) Source(3, 21) + SourceIndex(0)
 ---
 >>>var MyClass = (function () {
 1->
 2 >^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->
   >
-1->Emitted(3, 1) Source(4, 1) + SourceIndex(0)
+1->Emitted(17, 1) Source(4, 1) + SourceIndex(0)
 ---
 >>>    function MyClass() {
 1->^^^^
 2 >    ^^->
 1->
-1->Emitted(4, 5) Source(4, 1) + SourceIndex(0)
+1->Emitted(18, 5) Source(4, 1) + SourceIndex(0)
 ---
 >>>    }
 1->^^^^
@@ -59,8 +73,8 @@ sourceFile:out-flag.ts
   >    }
   >
 2 >    }
-1->Emitted(5, 5) Source(16, 1) + SourceIndex(0)
-2 >Emitted(5, 6) Source(16, 2) + SourceIndex(0)
+1->Emitted(19, 5) Source(16, 1) + SourceIndex(0)
+2 >Emitted(19, 6) Source(16, 2) + SourceIndex(0)
 ---
 >>>    // my function comments
 1->^^^^
@@ -68,8 +82,8 @@ sourceFile:out-flag.ts
 3 >                           ^^^^^^^^^^^^^^^^^->
 1->
 2 >    // my function comments
-1->Emitted(6, 5) Source(6, 5) + SourceIndex(0)
-2 >Emitted(6, 28) Source(6, 28) + SourceIndex(0)
+1->Emitted(20, 5) Source(6, 5) + SourceIndex(0)
+2 >Emitted(20, 28) Source(6, 28) + SourceIndex(0)
 ---
 >>>    MyClass.prototype.Count = function () {
 1->^^^^
@@ -79,9 +93,9 @@ sourceFile:out-flag.ts
   >    public 
 2 >    Count
 3 >                           
-1->Emitted(7, 5) Source(7, 12) + SourceIndex(0)
-2 >Emitted(7, 28) Source(7, 17) + SourceIndex(0)
-3 >Emitted(7, 31) Source(7, 5) + SourceIndex(0)
+1->Emitted(21, 5) Source(7, 12) + SourceIndex(0)
+2 >Emitted(21, 28) Source(7, 17) + SourceIndex(0)
+3 >Emitted(21, 31) Source(7, 5) + SourceIndex(0)
 ---
 >>>        return 42;
 1 >^^^^^^^^
@@ -96,11 +110,11 @@ sourceFile:out-flag.ts
 3 >               
 4 >               42
 5 >                 ;
-1 >Emitted(8, 9) Source(9, 9) + SourceIndex(0)
-2 >Emitted(8, 15) Source(9, 15) + SourceIndex(0)
-3 >Emitted(8, 16) Source(9, 16) + SourceIndex(0)
-4 >Emitted(8, 18) Source(9, 18) + SourceIndex(0)
-5 >Emitted(8, 19) Source(9, 19) + SourceIndex(0)
+1 >Emitted(22, 9) Source(9, 9) + SourceIndex(0)
+2 >Emitted(22, 15) Source(9, 15) + SourceIndex(0)
+3 >Emitted(22, 16) Source(9, 16) + SourceIndex(0)
+4 >Emitted(22, 18) Source(9, 18) + SourceIndex(0)
+5 >Emitted(22, 19) Source(9, 19) + SourceIndex(0)
 ---
 >>>    };
 1 >^^^^
@@ -109,8 +123,8 @@ sourceFile:out-flag.ts
 1 >
   >    
 2 >    }
-1 >Emitted(9, 5) Source(10, 5) + SourceIndex(0)
-2 >Emitted(9, 6) Source(10, 6) + SourceIndex(0)
+1 >Emitted(23, 5) Source(10, 5) + SourceIndex(0)
+2 >Emitted(23, 6) Source(10, 6) + SourceIndex(0)
 ---
 >>>    MyClass.prototype.SetCount = function (value) {
 1->^^^^
@@ -125,11 +139,11 @@ sourceFile:out-flag.ts
 3 >                              
 4 >                                 public SetCount(
 5 >                                           value: number
-1->Emitted(10, 5) Source(12, 12) + SourceIndex(0)
-2 >Emitted(10, 31) Source(12, 20) + SourceIndex(0)
-3 >Emitted(10, 34) Source(12, 5) + SourceIndex(0)
-4 >Emitted(10, 44) Source(12, 21) + SourceIndex(0)
-5 >Emitted(10, 49) Source(12, 34) + SourceIndex(0)
+1->Emitted(24, 5) Source(12, 12) + SourceIndex(0)
+2 >Emitted(24, 31) Source(12, 20) + SourceIndex(0)
+3 >Emitted(24, 34) Source(12, 5) + SourceIndex(0)
+4 >Emitted(24, 44) Source(12, 21) + SourceIndex(0)
+5 >Emitted(24, 49) Source(12, 34) + SourceIndex(0)
 ---
 >>>        //
 1 >^^^^^^^^
@@ -138,27 +152,28 @@ sourceFile:out-flag.ts
   >    {
   >        
 2 >        //
-1 >Emitted(11, 9) Source(14, 9) + SourceIndex(0)
-2 >Emitted(11, 11) Source(14, 11) + SourceIndex(0)
+1 >Emitted(25, 9) Source(14, 9) + SourceIndex(0)
+2 >Emitted(25, 11) Source(14, 11) + SourceIndex(0)
 ---
 >>>    };
 1 >^^^^
 2 >    ^
-3 >     ^^^^^^^^^^^^^^^->
+3 >     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >    
 2 >    }
-1 >Emitted(12, 5) Source(15, 5) + SourceIndex(0)
-2 >Emitted(12, 6) Source(15, 6) + SourceIndex(0)
+1 >Emitted(26, 5) Source(15, 5) + SourceIndex(0)
+2 >Emitted(26, 6) Source(15, 6) + SourceIndex(0)
 ---
+>>>    __names(MyClass.prototype, ["Count", "SetCount"]);
 >>>    return MyClass;
 1->^^^^
 2 >    ^^^^^^^^^^^^^^
 1->
   >
 2 >    }
-1->Emitted(13, 5) Source(16, 1) + SourceIndex(0)
-2 >Emitted(13, 19) Source(16, 2) + SourceIndex(0)
+1->Emitted(28, 5) Source(16, 1) + SourceIndex(0)
+2 >Emitted(28, 19) Source(16, 2) + SourceIndex(0)
 ---
 >>>}());
 1 >
@@ -182,9 +197,9 @@ sourceFile:out-flag.ts
   >         //
   >     }
   > }
-1 >Emitted(14, 1) Source(16, 1) + SourceIndex(0)
-2 >Emitted(14, 2) Source(16, 2) + SourceIndex(0)
-3 >Emitted(14, 2) Source(4, 1) + SourceIndex(0)
-4 >Emitted(14, 6) Source(16, 2) + SourceIndex(0)
+1 >Emitted(29, 1) Source(16, 1) + SourceIndex(0)
+2 >Emitted(29, 2) Source(16, 2) + SourceIndex(0)
+3 >Emitted(29, 2) Source(4, 1) + SourceIndex(0)
+4 >Emitted(29, 6) Source(16, 2) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=out-flag.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/overloadConsecutiveness.js b/tests/baselines/reference/overloadConsecutiveness.js
index 6a245ea18fa7f..519bc8e33eea4 100644
--- a/tests/baselines/reference/overloadConsecutiveness.js
+++ b/tests/baselines/reference/overloadConsecutiveness.js
@@ -14,6 +14,20 @@ class C {
 
 //// [overloadConsecutiveness.js]
 // Making sure compiler won't break with declarations that are consecutive in the AST but not consecutive in the source. Syntax errors intentional.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f1() { }
 function f2() { }
 function f2() { }
@@ -25,5 +39,6 @@ var C = (function () {
     C.prototype.m2 = function () { };
     C.prototype.m2 = function () { };
     C.prototype.m3 = function () { };
+    __names(C.prototype, ["m1", "m2", "m2", "m3"]);
     return C;
 }());
diff --git a/tests/baselines/reference/overloadModifiersMustAgree.js b/tests/baselines/reference/overloadModifiersMustAgree.js
index 783bf854a8424..0b051ad36f0b0 100644
--- a/tests/baselines/reference/overloadModifiersMustAgree.js
+++ b/tests/baselines/reference/overloadModifiersMustAgree.js
@@ -17,11 +17,26 @@ interface I {
 
 //// [overloadModifiersMustAgree.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var baz = (function () {
     function baz() {
     }
     baz.prototype.foo = function (bar) { }; // error - access modifiers do not agree
+    __names(baz.prototype, ["foo"]);
     return baz;
 }());
 function bar(s) { }
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks1.js b/tests/baselines/reference/overloadOnConstConstraintChecks1.js
index 6a4cc01bf8563..1b466da8659e3 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks1.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks1.js
@@ -23,6 +23,20 @@ class D implements MyDoc {
 }
 
 //// [overloadOnConstConstraintChecks1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -37,6 +51,7 @@ var Base = (function () {
     function Base() {
     }
     Base.prototype.foo = function () { };
+    __names(Base.prototype, ["foo"]);
     return Base;
 }());
 var Derived1 = (function (_super) {
@@ -45,6 +60,7 @@ var Derived1 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived1.prototype.bar = function () { };
+    __names(Derived1.prototype, ["bar"]);
     return Derived1;
 }(Base));
 var Derived2 = (function (_super) {
@@ -53,6 +69,7 @@ var Derived2 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived2.prototype.baz = function () { };
+    __names(Derived2.prototype, ["baz"]);
     return Derived2;
 }(Base));
 var Derived3 = (function (_super) {
@@ -61,6 +78,7 @@ var Derived3 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived3.prototype.biz = function () { };
+    __names(Derived3.prototype, ["biz"]);
     return Derived3;
 }(Base));
 var D = (function () {
@@ -69,5 +87,6 @@ var D = (function () {
     D.prototype.createElement = function (tagName) {
         return null;
     };
+    __names(D.prototype, ["createElement"]);
     return D;
 }());
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks2.js b/tests/baselines/reference/overloadOnConstConstraintChecks2.js
index 379de55da885e..485617d000876 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks2.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks2.js
@@ -22,6 +22,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -40,6 +54,7 @@ var C = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     C.prototype.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }(A));
 function foo(name) {
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks3.js b/tests/baselines/reference/overloadOnConstConstraintChecks3.js
index de843b9f44cab..3cee3d0d435b0 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks3.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks3.js
@@ -23,6 +23,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
         this.x = 1;
@@ -42,6 +56,7 @@ var C = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     C.prototype.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }(A));
 function foo(name) {
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks4.js b/tests/baselines/reference/overloadOnConstConstraintChecks4.js
index 3f7664ff6c8d5..6d8e660b56eb8 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks4.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks4.js
@@ -24,6 +24,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Z = (function () {
     function Z() {
     }
@@ -51,6 +65,7 @@ var C = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     C.prototype.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }(A));
 function foo(name) {
diff --git a/tests/baselines/reference/overloadOnConstInBaseWithBadImplementationInDerived.js b/tests/baselines/reference/overloadOnConstInBaseWithBadImplementationInDerived.js
index 188e4d0214023..da7c4b197a246 100644
--- a/tests/baselines/reference/overloadOnConstInBaseWithBadImplementationInDerived.js
+++ b/tests/baselines/reference/overloadOnConstInBaseWithBadImplementationInDerived.js
@@ -9,10 +9,25 @@ class C implements I {
 }
 
 //// [overloadOnConstInBaseWithBadImplementationInDerived.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.x1 = function (a, callback) {
     };
+    __names(C.prototype, ["x1"]);
     return C;
 }());
diff --git a/tests/baselines/reference/overloadOnConstInCallback1.js b/tests/baselines/reference/overloadOnConstInCallback1.js
index d00779081774d..d9a1b3eb18e53 100644
--- a/tests/baselines/reference/overloadOnConstInCallback1.js
+++ b/tests/baselines/reference/overloadOnConstInCallback1.js
@@ -10,6 +10,20 @@ class C {
 }
 
 //// [overloadOnConstInCallback1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -19,5 +33,6 @@ var C = (function () {
         var hm = "hm";
         callback(hm);
     };
+    __names(C.prototype, ["x1"]);
     return C;
 }());
diff --git a/tests/baselines/reference/overloadOnConstInheritance4.js b/tests/baselines/reference/overloadOnConstInheritance4.js
index f493d9ef2de0f..8cac3643f8cff 100644
--- a/tests/baselines/reference/overloadOnConstInheritance4.js
+++ b/tests/baselines/reference/overloadOnConstInheritance4.js
@@ -10,10 +10,25 @@ class C implements I {
 
 
 //// [overloadOnConstInheritance4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.x1 = function (a, callback) {
     };
+    __names(C.prototype, ["x1"]);
     return C;
 }());
diff --git a/tests/baselines/reference/overloadOnConstNoAnyImplementation2.js b/tests/baselines/reference/overloadOnConstNoAnyImplementation2.js
index 5e3110abd3dd3..364899a14bcb4 100644
--- a/tests/baselines/reference/overloadOnConstNoAnyImplementation2.js
+++ b/tests/baselines/reference/overloadOnConstNoAnyImplementation2.js
@@ -22,6 +22,20 @@ c.x1(1, (x) => { return 1; } );
 c.x1(1, (x: number) => { return 1; } );
 
 //// [overloadOnConstNoAnyImplementation2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -32,6 +46,7 @@ var C = (function () {
         callback(hm);
         callback(1); // error
     };
+    __names(C.prototype, ["x1"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/overloadOnConstNoNonSpecializedSignature.js b/tests/baselines/reference/overloadOnConstNoNonSpecializedSignature.js
index 8a610f30922aa..09c8635c50c1e 100644
--- a/tests/baselines/reference/overloadOnConstNoNonSpecializedSignature.js
+++ b/tests/baselines/reference/overloadOnConstNoNonSpecializedSignature.js
@@ -6,9 +6,24 @@ class C {
 
 
 //// [overloadOnConstNoNonSpecializedSignature.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.x1 = function (a) { };
+    __names(C.prototype, ["x1"]);
     return C;
 }());
diff --git a/tests/baselines/reference/overloadOnConstNoStringImplementation2.js b/tests/baselines/reference/overloadOnConstNoStringImplementation2.js
index 98ee0f45c152d..db7365a46f6e1 100644
--- a/tests/baselines/reference/overloadOnConstNoStringImplementation2.js
+++ b/tests/baselines/reference/overloadOnConstNoStringImplementation2.js
@@ -21,6 +21,20 @@ c.x1(1, (x: string) => { return 1; } );
 c.x1(1, (x: number) => { return 1; } );
 
 //// [overloadOnConstNoStringImplementation2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -31,6 +45,7 @@ var C = (function () {
         callback(hm);
         callback(1);
     };
+    __names(C.prototype, ["x1"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js b/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js
index 5488ea03ee8b6..5632b76d6a317 100644
--- a/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js
+++ b/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js
@@ -12,6 +12,20 @@ function foo(name: "DIV"): Derived2 {
 foo("HI");
 
 //// [overloadOnConstantsInvalidOverload1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -26,6 +40,7 @@ var Base = (function () {
     function Base() {
     }
     Base.prototype.foo = function () { };
+    __names(Base.prototype, ["foo"]);
     return Base;
 }());
 var Derived1 = (function (_super) {
@@ -34,6 +49,7 @@ var Derived1 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived1.prototype.bar = function () { };
+    __names(Derived1.prototype, ["bar"]);
     return Derived1;
 }(Base));
 var Derived2 = (function (_super) {
@@ -42,6 +58,7 @@ var Derived2 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived2.prototype.baz = function () { };
+    __names(Derived2.prototype, ["baz"]);
     return Derived2;
 }(Base));
 var Derived3 = (function (_super) {
@@ -50,6 +67,7 @@ var Derived3 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived3.prototype.biz = function () { };
+    __names(Derived3.prototype, ["biz"]);
     return Derived3;
 }(Base));
 function foo(name) {
diff --git a/tests/baselines/reference/overloadResolutionOnDefaultConstructor1.js b/tests/baselines/reference/overloadResolutionOnDefaultConstructor1.js
index 49ac12e615223..1f816352b50e8 100644
--- a/tests/baselines/reference/overloadResolutionOnDefaultConstructor1.js
+++ b/tests/baselines/reference/overloadResolutionOnDefaultConstructor1.js
@@ -6,11 +6,26 @@ class Bar {
 }
 
 //// [overloadResolutionOnDefaultConstructor1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Bar = (function () {
     function Bar() {
     }
     Bar.prototype.clone = function () {
         return new Bar(0);
     };
+    __names(Bar.prototype, ["clone"]);
     return Bar;
 }());
diff --git a/tests/baselines/reference/overloadingOnConstants1.js b/tests/baselines/reference/overloadingOnConstants1.js
index c741abade66dc..0a67c6299f52f 100644
--- a/tests/baselines/reference/overloadingOnConstants1.js
+++ b/tests/baselines/reference/overloadingOnConstants1.js
@@ -26,6 +26,20 @@ var htmlDivElement2: Derived1 = d2.createElement("div");
 var htmlSpanElement2: Derived1 = d2.createElement("span");
 
 //// [overloadingOnConstants1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -40,6 +54,7 @@ var Base = (function () {
     function Base() {
     }
     Base.prototype.foo = function () { };
+    __names(Base.prototype, ["foo"]);
     return Base;
 }());
 var Derived1 = (function (_super) {
@@ -48,6 +63,7 @@ var Derived1 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived1.prototype.bar = function () { };
+    __names(Derived1.prototype, ["bar"]);
     return Derived1;
 }(Base));
 var Derived2 = (function (_super) {
@@ -56,6 +72,7 @@ var Derived2 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived2.prototype.baz = function () { };
+    __names(Derived2.prototype, ["baz"]);
     return Derived2;
 }(Base));
 var Derived3 = (function (_super) {
@@ -64,6 +81,7 @@ var Derived3 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived3.prototype.biz = function () { };
+    __names(Derived3.prototype, ["biz"]);
     return Derived3;
 }(Base));
 var d2;
diff --git a/tests/baselines/reference/overloadsWithinClasses.js b/tests/baselines/reference/overloadsWithinClasses.js
index 0cd191c8f4437..f12dd107312d7 100644
--- a/tests/baselines/reference/overloadsWithinClasses.js
+++ b/tests/baselines/reference/overloadsWithinClasses.js
@@ -24,6 +24,20 @@ class X {
 
 
 //// [overloadsWithinClasses.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var foo = (function () {
     function foo() {
     }
@@ -42,5 +56,6 @@ var X = (function () {
     }
     X.prototype.attr = function (first, second) {
     };
+    __names(X.prototype, ["attr"]);
     return X;
 }());
diff --git a/tests/baselines/reference/overrideBaseIntersectionMethod.js b/tests/baselines/reference/overrideBaseIntersectionMethod.js
index ed17ef4e18948..1c637a1f9fe8a 100644
--- a/tests/baselines/reference/overrideBaseIntersectionMethod.js
+++ b/tests/baselines/reference/overrideBaseIntersectionMethod.js
@@ -43,6 +43,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var WithLocation = function (Base) { return (function (_super) {
     __extends(class_1, _super);
     function class_1() {
@@ -52,6 +66,7 @@ var WithLocation = function (Base) { return (function (_super) {
         var _a = _super.prototype.getLocation.call(this), x = _a[0], y = _a[1];
         return [this.x | x, this.y | y];
     };
+    __names(class_1.prototype, ["getLocation"]);
     return class_1;
 }(Base)); };
 var Point = (function () {
@@ -62,6 +77,7 @@ var Point = (function () {
     Point.prototype.getLocation = function () {
         return [0, 0];
     };
+    __names(Point.prototype, ["getLocation"]);
     return Point;
 }());
 var Foo = (function (_super) {
@@ -78,5 +94,6 @@ var Foo = (function (_super) {
     Foo.prototype.whereAmI = function () {
         return this.getLocation();
     };
+    __names(Foo.prototype, ["calculate", "getLocation", "whereAmI"]);
     return Foo;
 }(WithLocation(Point)));
diff --git a/tests/baselines/reference/parameterInitializersForwardReferencing.js b/tests/baselines/reference/parameterInitializersForwardReferencing.js
index e43ba42fbb8c8..9ec7288dbc8fd 100644
--- a/tests/baselines/reference/parameterInitializersForwardReferencing.js
+++ b/tests/baselines/reference/parameterInitializersForwardReferencing.js
@@ -42,6 +42,20 @@ function f(a, b = function () { return c; }, c = b()) {
 }
 
 //// [parameterInitializersForwardReferencing.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function left(a, b, c) {
     if (b === void 0) { b = a; }
     if (c === void 0) { c = b; }
@@ -90,6 +104,7 @@ var C = (function () {
         if (a === void 0) { a = b; }
         if (b === void 0) { b = 1; }
     };
+    __names(C.prototype, ["method"]);
     return C;
 }());
 // Function expressions
diff --git a/tests/baselines/reference/parameterNamesInTypeParameterList.js b/tests/baselines/reference/parameterNamesInTypeParameterList.js
index f4d74b89782f1..808fe980dea3f 100644
--- a/tests/baselines/reference/parameterNamesInTypeParameterList.js
+++ b/tests/baselines/reference/parameterNamesInTypeParameterList.js
@@ -24,6 +24,20 @@ class A {
 }
 
 //// [parameterNamesInTypeParameterList.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f0(a) {
     a.b;
 }
@@ -49,5 +63,6 @@ var A = (function () {
         var a = _a[0];
         a.b;
     };
+    __names(A.prototype, ["m0", "m1", "m2"]);
     return A;
 }());
diff --git a/tests/baselines/reference/parameterPropertyOutsideConstructor.js b/tests/baselines/reference/parameterPropertyOutsideConstructor.js
index 151b766cf5dc1..3904c5f9ba98a 100644
--- a/tests/baselines/reference/parameterPropertyOutsideConstructor.js
+++ b/tests/baselines/reference/parameterPropertyOutsideConstructor.js
@@ -5,10 +5,25 @@ class C {
 }
 
 //// [parameterPropertyOutsideConstructor.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) {
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parametersWithNoAnnotationAreAny.js b/tests/baselines/reference/parametersWithNoAnnotationAreAny.js
index 54d9d1b6e037c..edd5b2eb3e6a9 100644
--- a/tests/baselines/reference/parametersWithNoAnnotationAreAny.js
+++ b/tests/baselines/reference/parametersWithNoAnnotationAreAny.js
@@ -30,6 +30,20 @@ var b = {
 }
 
 //// [parametersWithNoAnnotationAreAny.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x) { return x; }
 var f = function foo(x) { return x; };
 var f2 = function (x) { return x; };
@@ -40,6 +54,7 @@ var C = (function () {
     C.prototype.foo = function (x) {
         return x;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/parser509667.js b/tests/baselines/reference/parser509667.js
index 0b68d0e0f59bd..cb3561ec4b308 100644
--- a/tests/baselines/reference/parser509667.js
+++ b/tests/baselines/reference/parser509667.js
@@ -12,6 +12,20 @@ class Foo {
 }
 
 //// [parser509667.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -24,5 +38,6 @@ var Foo = (function () {
     };
     Foo.prototype.f3 = function () {
     };
+    __names(Foo.prototype, ["f1", "f2", "f3"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/parser553699.js b/tests/baselines/reference/parser553699.js
index a8a39c9bea6d6..21bdb63a2bc33 100644
--- a/tests/baselines/reference/parser553699.js
+++ b/tests/baselines/reference/parser553699.js
@@ -9,10 +9,25 @@ class Bar {
 }
 
 //// [parser553699.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
     Foo.prototype.banana = function (x) { };
+    __names(Foo.prototype, ["banana"]);
     return Foo;
 }());
 var Bar = (function () {
diff --git a/tests/baselines/reference/parser618973.js b/tests/baselines/reference/parser618973.js
index bfef06b061f70..e3f1dfd1f959a 100644
--- a/tests/baselines/reference/parser618973.js
+++ b/tests/baselines/reference/parser618973.js
@@ -6,12 +6,27 @@ export export class Foo {
 
 //// [parser618973.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Foo = (function () {
     function Foo() {
     }
     Foo.prototype.Bar = function () {
     };
+    __names(Foo.prototype, ["Bar"]);
     return Foo;
 }());
 exports.Foo = Foo;
diff --git a/tests/baselines/reference/parserAstSpans1.js b/tests/baselines/reference/parserAstSpans1.js
index ed4943046fa88..7ef97bd74dd4b 100644
--- a/tests/baselines/reference/parserAstSpans1.js
+++ b/tests/baselines/reference/parserAstSpans1.js
@@ -220,6 +220,20 @@ class c6 extends c5 {
 }
 
 //// [parserAstSpans1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -243,6 +257,7 @@ var c1 = (function () {
     /** c1_nc_f1*/
     c1.prototype.nc_f1 = function () {
     };
+    __names(c1.prototype, ["i1_f1", "i1_nc_f1", "f1", "nc_f1"]);
     return c1;
 }());
 var i1_i;
@@ -318,6 +333,7 @@ var c2 = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(c2.prototype, ["c2_f1", "c2_nc_f1", "f1", "nc_f1"]);
     return c2;
 }());
 var c3 = (function (_super) {
@@ -347,6 +363,7 @@ var c3 = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(c3.prototype, ["f1", "nc_f1"]);
     return c3;
 }(c2));
 var c2_i = new c2(10);
diff --git a/tests/baselines/reference/parserClass1.js b/tests/baselines/reference/parserClass1.js
index 7fcbf29f242be..dc4e0c1d51073 100644
--- a/tests/baselines/reference/parserClass1.js
+++ b/tests/baselines/reference/parserClass1.js
@@ -11,6 +11,20 @@
 
 //// [parserClass1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var NullLogger = (function () {
     function NullLogger() {
@@ -22,6 +36,7 @@ var NullLogger = (function () {
     NullLogger.prototype.fatal = function () { return false; };
     NullLogger.prototype.log = function (s) {
     };
+    __names(NullLogger.prototype, ["information", "debug", "warning", "error", "fatal", "log"]);
     return NullLogger;
 }());
 exports.NullLogger = NullLogger;
diff --git a/tests/baselines/reference/parserClassDeclaration11.js b/tests/baselines/reference/parserClassDeclaration11.js
index 5749fa24f855b..83b356419dade 100644
--- a/tests/baselines/reference/parserClassDeclaration11.js
+++ b/tests/baselines/reference/parserClassDeclaration11.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [parserClassDeclaration11.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserClassDeclaration13.js b/tests/baselines/reference/parserClassDeclaration13.js
index ad0ca6d502f2d..3e18333b7c843 100644
--- a/tests/baselines/reference/parserClassDeclaration13.js
+++ b/tests/baselines/reference/parserClassDeclaration13.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [parserClassDeclaration13.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.bar = function () { };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserClassDeclaration16.js b/tests/baselines/reference/parserClassDeclaration16.js
index 94ce889b9ba58..ddccb1d445f2f 100644
--- a/tests/baselines/reference/parserClassDeclaration16.js
+++ b/tests/baselines/reference/parserClassDeclaration16.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [parserClassDeclaration16.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserClassDeclaration19.js b/tests/baselines/reference/parserClassDeclaration19.js
index 9be5032e6986d..b6fe222c7f37f 100644
--- a/tests/baselines/reference/parserClassDeclaration19.js
+++ b/tests/baselines/reference/parserClassDeclaration19.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [parserClassDeclaration19.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype["foo"] = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserClassDeclaration20.js b/tests/baselines/reference/parserClassDeclaration20.js
index 56dc7c2ce9df9..23cbff954ec6a 100644
--- a/tests/baselines/reference/parserClassDeclaration20.js
+++ b/tests/baselines/reference/parserClassDeclaration20.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [parserClassDeclaration20.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype["0"] = function () { };
+    __names(C.prototype, ["0"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserClassDeclaration21.js b/tests/baselines/reference/parserClassDeclaration21.js
index c28d25963c282..61c4d25dbcf53 100644
--- a/tests/baselines/reference/parserClassDeclaration21.js
+++ b/tests/baselines/reference/parserClassDeclaration21.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [parserClassDeclaration21.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype[1] = function () { };
+    __names(C.prototype, [1]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserClassDeclaration22.js b/tests/baselines/reference/parserClassDeclaration22.js
index 2b979579ddac0..2703e882479a0 100644
--- a/tests/baselines/reference/parserClassDeclaration22.js
+++ b/tests/baselines/reference/parserClassDeclaration22.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [parserClassDeclaration22.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype["bar"] = function () { };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserES5ComputedPropertyName3.js b/tests/baselines/reference/parserES5ComputedPropertyName3.js
index 1fdb5ced65dcd..2d2867cee5dff 100644
--- a/tests/baselines/reference/parserES5ComputedPropertyName3.js
+++ b/tests/baselines/reference/parserES5ComputedPropertyName3.js
@@ -2,5 +2,19 @@
 var v = { [e]() { } };
 
 //// [parserES5ComputedPropertyName3.js]
-var v = (_a = {}, _a[e] = function () { }, _a);
-var _a;
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
+var v = (_a = {}, _a[_b = e] = function () { }, __names(_a, [_b]), _a);
+var _a, _b;
diff --git a/tests/baselines/reference/parserES5SymbolProperty7.js b/tests/baselines/reference/parserES5SymbolProperty7.js
index 4965f7867c310..f147c0a03aa01 100644
--- a/tests/baselines/reference/parserES5SymbolProperty7.js
+++ b/tests/baselines/reference/parserES5SymbolProperty7.js
@@ -4,9 +4,25 @@ class C {
 }
 
 //// [parserES5SymbolProperty7.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
-    C.prototype[Symbol.toStringTag] = function () { };
+    C.prototype[_a = Symbol.toStringTag] = function () { };
+    __names(C.prototype, [_a]);
     return C;
+    var _a;
 }());
diff --git a/tests/baselines/reference/parserErrantSemicolonInClass1.js b/tests/baselines/reference/parserErrantSemicolonInClass1.js
index 7dbe9f579d289..e294b308a30c7 100644
--- a/tests/baselines/reference/parserErrantSemicolonInClass1.js
+++ b/tests/baselines/reference/parserErrantSemicolonInClass1.js
@@ -36,6 +36,20 @@ class a {
 
 
 //// [parserErrantSemicolonInClass1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var a = (function () {
     function a(ns) {
     }
@@ -69,5 +83,6 @@ var a = (function () {
     a.prototype.foo = function (ns) {
         return ns.toString();
     };
+    __names(a.prototype, ["pgF", "foo"]);
     return a;
 }());
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement1.js b/tests/baselines/reference/parserErrorRecoveryIfStatement1.js
index 03e3de32cc175..1aada6507a708 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement1.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement1.js
@@ -10,6 +10,20 @@ class Foo {
 }
 
 //// [parserErrorRecoveryIfStatement1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -21,5 +35,6 @@ var Foo = (function () {
     };
     Foo.prototype.f3 = function () {
     };
+    __names(Foo.prototype, ["f1", "f2", "f3"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement2.js b/tests/baselines/reference/parserErrorRecoveryIfStatement2.js
index 84daa435711b0..c5da613c2796b 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement2.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement2.js
@@ -10,6 +10,20 @@ class Foo {
 }
 
 //// [parserErrorRecoveryIfStatement2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -21,5 +35,6 @@ var Foo = (function () {
     };
     Foo.prototype.f3 = function () {
     };
+    __names(Foo.prototype, ["f1", "f2", "f3"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement3.js b/tests/baselines/reference/parserErrorRecoveryIfStatement3.js
index b58c0ccd524ef..01144e18c9f6b 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement3.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement3.js
@@ -10,6 +10,20 @@ class Foo {
 }
 
 //// [parserErrorRecoveryIfStatement3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -21,5 +35,6 @@ var Foo = (function () {
     };
     Foo.prototype.f3 = function () {
     };
+    __names(Foo.prototype, ["f1", "f2", "f3"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement4.js b/tests/baselines/reference/parserErrorRecoveryIfStatement4.js
index 3d5e6af1fe6aa..2a9310214d856 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement4.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement4.js
@@ -10,6 +10,20 @@ class Foo {
 }
 
 //// [parserErrorRecoveryIfStatement4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -21,5 +35,6 @@ var Foo = (function () {
     };
     Foo.prototype.f3 = function () {
     };
+    __names(Foo.prototype, ["f1", "f2", "f3"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement5.js b/tests/baselines/reference/parserErrorRecoveryIfStatement5.js
index b3a4f897aa7ff..1239d992a34ac 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement5.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement5.js
@@ -10,6 +10,20 @@ class Foo {
 }
 
 //// [parserErrorRecoveryIfStatement5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -23,5 +37,6 @@ var Foo = (function () {
         {
         }
     };
+    __names(Foo.prototype, ["f1"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement6.js b/tests/baselines/reference/parserErrorRecoveryIfStatement6.js
index 86454bed4f2f2..97888b6a84183 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement6.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement6.js
@@ -11,6 +11,20 @@ class Foo {
 
 
 //// [parserErrorRecoveryIfStatement6.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
@@ -22,5 +36,6 @@ var Foo = (function () {
     };
     Foo.prototype.f3 = function () {
     };
+    __names(Foo.prototype, ["f1", "f2", "f3"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/parserErrorRecovery_Block3.js b/tests/baselines/reference/parserErrorRecovery_Block3.js
index 842533c680143..a4e068f1192f2 100644
--- a/tests/baselines/reference/parserErrorRecovery_Block3.js
+++ b/tests/baselines/reference/parserErrorRecovery_Block3.js
@@ -7,6 +7,20 @@ class C  {
 }
 
 //// [parserErrorRecovery_Block3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -14,5 +28,6 @@ var C = (function () {
     };
     C.prototype.b = function () {
     };
+    __names(C.prototype, ["a", "b"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable1.js b/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable1.js
index 9bb4395e55655..faecf0f05a207 100644
--- a/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable1.js
+++ b/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable1.js
@@ -29,6 +29,20 @@ var dist = p.getDist();
 
 
 //// [parserErrorRecovery_IncompleteMemberVariable1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // Module
 var Shapes;
 (function (Shapes) {
@@ -41,6 +55,7 @@ var Shapes;
         }
         // Instance member
         Point.prototype.getDist = function () { return Math.sqrt(this.x * this.x + this.y * this.y); };
+        __names(Point.prototype, ["getDist"]);
         // Static member
         Point.origin = new Point(0, 0);
         return Point;
diff --git a/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable2.js b/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable2.js
index 0ee73b8b1e5bf..1ba61fb18222e 100644
--- a/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable2.js
+++ b/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable2.js
@@ -29,6 +29,20 @@ var dist = p.getDist();
 
 
 //// [parserErrorRecovery_IncompleteMemberVariable2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // Module
 var Shapes;
 (function (Shapes) {
@@ -42,6 +56,7 @@ var Shapes;
         }
         // Instance member
         Point.prototype.getDist = function () { return Math.sqrt(this.x * this.x + this.y * this.y); };
+        __names(Point.prototype, ["getDist"]);
         // Static member
         Point.origin = new Point(0, 0);
         return Point;
diff --git a/tests/baselines/reference/parserMemberFunctionDeclaration1.js b/tests/baselines/reference/parserMemberFunctionDeclaration1.js
index 21a4793b19084..afd699cd0c4f9 100644
--- a/tests/baselines/reference/parserMemberFunctionDeclaration1.js
+++ b/tests/baselines/reference/parserMemberFunctionDeclaration1.js
@@ -4,9 +4,24 @@ class C {
 }
 
 //// [parserMemberFunctionDeclaration1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.Foo = function () { };
+    __names(C.prototype, ["Foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserMemberFunctionDeclaration4.js b/tests/baselines/reference/parserMemberFunctionDeclaration4.js
index 8911fe60c1ffb..f2acf1018bc03 100644
--- a/tests/baselines/reference/parserMemberFunctionDeclaration4.js
+++ b/tests/baselines/reference/parserMemberFunctionDeclaration4.js
@@ -4,9 +4,24 @@ class C {
 }
 
 //// [parserMemberFunctionDeclaration4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.Foo = function () { };
+    __names(C.prototype, ["Foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserMemberFunctionDeclaration5.js b/tests/baselines/reference/parserMemberFunctionDeclaration5.js
index 8d060cb7cc9c5..e018e44ad7724 100644
--- a/tests/baselines/reference/parserMemberFunctionDeclaration5.js
+++ b/tests/baselines/reference/parserMemberFunctionDeclaration5.js
@@ -4,9 +4,24 @@ class C {
 }
 
 //// [parserMemberFunctionDeclaration5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.Foo = function () { };
+    __names(C.prototype, ["Foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserMemberFunctionDeclarationAmbiguities1.js b/tests/baselines/reference/parserMemberFunctionDeclarationAmbiguities1.js
index f84123762107f..424bd93e70483 100644
--- a/tests/baselines/reference/parserMemberFunctionDeclarationAmbiguities1.js
+++ b/tests/baselines/reference/parserMemberFunctionDeclarationAmbiguities1.js
@@ -14,6 +14,20 @@ class C {
 }
 
 //// [parserMemberFunctionDeclarationAmbiguities1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -25,5 +39,6 @@ var C = (function () {
     C.static = function () { };
     C.public = function () { };
     C.static = function () { };
+    __names(C.prototype, ["public", "static", "public", "static"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserMissingLambdaOpenBrace1.js b/tests/baselines/reference/parserMissingLambdaOpenBrace1.js
index 36b3d92fcd787..36c2e80b9f9da 100644
--- a/tests/baselines/reference/parserMissingLambdaOpenBrace1.js
+++ b/tests/baselines/reference/parserMissingLambdaOpenBrace1.js
@@ -9,6 +9,20 @@ class C {
 }
 
 //// [parserMissingLambdaOpenBrace1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -19,5 +33,6 @@ var C = (function () {
             return _this.doWhile(function (item, i) { return filter(item, i) ? test(item, index++) : true; });
         });
     };
+    __names(C.prototype, ["where"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserParameterList1.js b/tests/baselines/reference/parserParameterList1.js
index 01ef6a149dcd6..015e0a4d2c20a 100644
--- a/tests/baselines/reference/parserParameterList1.js
+++ b/tests/baselines/reference/parserParameterList1.js
@@ -4,9 +4,24 @@ class C {
 }
 
 //// [parserParameterList1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.F = function (B) { };
+    __names(C.prototype, ["F"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserParameterList10.js b/tests/baselines/reference/parserParameterList10.js
index f899901728c20..a44f1fa5e32d5 100644
--- a/tests/baselines/reference/parserParameterList10.js
+++ b/tests/baselines/reference/parserParameterList10.js
@@ -4,6 +4,20 @@ class C {
 }
 
 //// [parserParameterList10.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -13,5 +27,6 @@ var C = (function () {
             bar[_i] = arguments[_i];
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserParameterList16.js b/tests/baselines/reference/parserParameterList16.js
index 9565cba53c1ca..c4e156c17fa7f 100644
--- a/tests/baselines/reference/parserParameterList16.js
+++ b/tests/baselines/reference/parserParameterList16.js
@@ -5,9 +5,24 @@ class C {
 }
 
 //// [parserParameterList16.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (a, b) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserParameterList2.js b/tests/baselines/reference/parserParameterList2.js
index 8fcddb532dca8..73351eac79eb1 100644
--- a/tests/baselines/reference/parserParameterList2.js
+++ b/tests/baselines/reference/parserParameterList2.js
@@ -4,11 +4,26 @@ class C {
 }
 
 //// [parserParameterList2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.F = function (A) {
         if (A === void 0) { A = 0; }
     };
+    __names(C.prototype, ["F"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserParameterList3.js b/tests/baselines/reference/parserParameterList3.js
index d2cf7c5c9f519..0ac53eeffefbe 100644
--- a/tests/baselines/reference/parserParameterList3.js
+++ b/tests/baselines/reference/parserParameterList3.js
@@ -4,9 +4,24 @@ class C {
 }
 
 //// [parserParameterList3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.F = function (A, B) { };
+    __names(C.prototype, ["F"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserParameterList9.js b/tests/baselines/reference/parserParameterList9.js
index 3ccc1d0202569..8e1e92f8ce816 100644
--- a/tests/baselines/reference/parserParameterList9.js
+++ b/tests/baselines/reference/parserParameterList9.js
@@ -4,6 +4,20 @@ class C {
 }
 
 //// [parserParameterList9.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -13,5 +27,6 @@ var C = (function () {
             bar[_i] = arguments[_i];
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserRealSource1.js b/tests/baselines/reference/parserRealSource1.js
index e41cb2a4b3f17..3bd1e926839f9 100644
--- a/tests/baselines/reference/parserRealSource1.js
+++ b/tests/baselines/reference/parserRealSource1.js
@@ -157,6 +157,20 @@ module TypeScript {
 //// [parserRealSource1.js]
 // Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0. 
 // See LICENSE.txt in the project root for complete license information.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 ///<reference path='typescript.ts' />
 var TypeScript;
 (function (TypeScript) {
@@ -196,6 +210,7 @@ var TypeScript;
         NullLogger.prototype.fatal = function () { return false; };
         NullLogger.prototype.log = function (s) {
         };
+        __names(NullLogger.prototype, ["information", "debug", "warning", "error", "fatal", "log"]);
         return NullLogger;
     }());
     TypeScript.NullLogger = NullLogger;
@@ -216,6 +231,7 @@ var TypeScript;
         LoggerAdapter.prototype.log = function (s) {
             this.logger.log(s);
         };
+        __names(LoggerAdapter.prototype, ["information", "debug", "warning", "error", "fatal", "log"]);
         return LoggerAdapter;
     }());
     TypeScript.LoggerAdapter = LoggerAdapter;
@@ -231,6 +247,7 @@ var TypeScript;
         BufferedLogger.prototype.log = function (s) {
             this.logContents.push(s);
         };
+        __names(BufferedLogger.prototype, ["information", "debug", "warning", "error", "fatal", "log"]);
         return BufferedLogger;
     }());
     TypeScript.BufferedLogger = BufferedLogger;
diff --git a/tests/baselines/reference/parserRealSource10.js b/tests/baselines/reference/parserRealSource10.js
index 0d42dc5f47b72..c7c4fd5effab4 100644
--- a/tests/baselines/reference/parserRealSource10.js
+++ b/tests/baselines/reference/parserRealSource10.js
@@ -458,6 +458,20 @@ module TypeScript {
 //// [parserRealSource10.js]
 // Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0. 
 // See LICENSE.txt in the project root for complete license information.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -825,6 +839,7 @@ var TypeScript;
             }
             return TokenClass.Punctuation;
         };
+        __names(Token.prototype, ["toString", "print", "getText", "classification"]);
         return Token;
     }());
     TypeScript.Token = Token;
@@ -842,6 +857,7 @@ var TypeScript;
         NumberLiteralToken.prototype.classification = function () {
             return TokenClass.Literal;
         };
+        __names(NumberLiteralToken.prototype, ["getText", "classification"]);
         return NumberLiteralToken;
     }(Token));
     TypeScript.NumberLiteralToken = NumberLiteralToken;
@@ -858,6 +874,7 @@ var TypeScript;
         StringLiteralToken.prototype.classification = function () {
             return TokenClass.Literal;
         };
+        __names(StringLiteralToken.prototype, ["getText", "classification"]);
         return StringLiteralToken;
     }(Token));
     TypeScript.StringLiteralToken = StringLiteralToken;
@@ -875,6 +892,7 @@ var TypeScript;
         IdentifierToken.prototype.classification = function () {
             return TokenClass.Identifier;
         };
+        __names(IdentifierToken.prototype, ["getText", "classification"]);
         return IdentifierToken;
     }(Token));
     TypeScript.IdentifierToken = IdentifierToken;
@@ -891,6 +909,7 @@ var TypeScript;
         WhitespaceToken.prototype.classification = function () {
             return TokenClass.Whitespace;
         };
+        __names(WhitespaceToken.prototype, ["getText", "classification"]);
         return WhitespaceToken;
     }(Token));
     TypeScript.WhitespaceToken = WhitespaceToken;
@@ -911,6 +930,7 @@ var TypeScript;
         CommentToken.prototype.classification = function () {
             return TokenClass.Comment;
         };
+        __names(CommentToken.prototype, ["getText", "classification"]);
         return CommentToken;
     }(Token));
     TypeScript.CommentToken = CommentToken;
@@ -927,6 +947,7 @@ var TypeScript;
         RegularExpressionLiteralToken.prototype.classification = function () {
             return TokenClass.Literal;
         };
+        __names(RegularExpressionLiteralToken.prototype, ["getText", "classification"]);
         return RegularExpressionLiteralToken;
     }(Token));
     TypeScript.RegularExpressionLiteralToken = RegularExpressionLiteralToken;
diff --git a/tests/baselines/reference/parserRealSource11.js b/tests/baselines/reference/parserRealSource11.js
index 0d942cb1c68d4..f0afc72c13562 100644
--- a/tests/baselines/reference/parserRealSource11.js
+++ b/tests/baselines/reference/parserRealSource11.js
@@ -2377,6 +2377,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 ///<reference path='typescript.ts' />
 var TypeScript;
 (function (TypeScript) {
@@ -2542,6 +2556,7 @@ var TypeScript;
             resolved += name.substring(start);
             return resolved;
         };
+        __names(AST.prototype, ["isExpression", "isStatementOrExpression", "isCompoundStatement", "isLeaf", "typeCheck", "emit", "print", "printLabel", "addToControlFlow", "netFreeUses", "treeViewLabel"]);
         return AST;
     }(ASTSpan));
     TypeScript.AST = AST;
@@ -2609,6 +2624,7 @@ var TypeScript;
             typeFlow.nestingLevel--;
             return this;
         };
+        __names(ASTList.prototype, ["addToControlFlow", "append", "appendAll", "emit", "typeCheck"]);
         return ASTList;
     }(AST));
     TypeScript.ASTList = ASTList;
@@ -2666,6 +2682,7 @@ var TypeScript;
         Identifier.fromToken = function (token) {
             return new Identifier(token.getText(), token.hasEscapeSequence);
         };
+        __names(Identifier.prototype, ["setText", "isMissing", "isLeaf", "treeViewLabel", "printLabel", "typeCheck", "emit"]);
         return Identifier;
     }(AST));
     TypeScript.Identifier = Identifier;
@@ -2680,6 +2697,7 @@ var TypeScript;
         MissingIdentifier.prototype.emit = function (emitter, tokenId, startLine) {
             // Emit nothing for a missing ID
         };
+        __names(MissingIdentifier.prototype, ["isMissing", "emit"]);
         return MissingIdentifier;
     }(Identifier));
     TypeScript.MissingIdentifier = MissingIdentifier;
@@ -2705,6 +2723,7 @@ var TypeScript;
             emitter.recordSourceMappingEnd(this);
             emitter.emitParensAndCommentsInPlace(this, false);
         };
+        __names(Label.prototype, ["printLabel", "typeCheck", "emit"]);
         return Label;
     }(AST));
     TypeScript.Label = Label;
@@ -2715,6 +2734,7 @@ var TypeScript;
         }
         Expression.prototype.isExpression = function () { return true; };
         Expression.prototype.isStatementOrExpression = function () { return true; };
+        __names(Expression.prototype, ["isExpression", "isStatementOrExpression"]);
         return Expression;
     }(AST));
     TypeScript.Expression = Expression;
@@ -2860,6 +2880,7 @@ var TypeScript;
             emitter.recordSourceMappingEnd(this);
             emitter.emitParensAndCommentsInPlace(this, false);
         };
+        __names(UnaryExpression.prototype, ["addToControlFlow", "typeCheck", "emit"]);
         return UnaryExpression;
     }(Expression));
     TypeScript.UnaryExpression = UnaryExpression;
@@ -2893,6 +2914,7 @@ var TypeScript;
             emitter.recordSourceMappingEnd(this);
             emitter.emitParensAndCommentsInPlace(this, false);
         };
+        __names(CallExpression.prototype, ["typeCheck", "emit"]);
         return CallExpression;
     }(Expression));
     TypeScript.CallExpression = CallExpression;
@@ -3046,6 +3068,7 @@ var TypeScript;
             emitter.recordSourceMappingEnd(this);
             emitter.emitParensAndCommentsInPlace(this, false);
         };
+        __names(BinaryExpression.prototype, ["typeCheck", "emit"]);
         return BinaryExpression;
     }(Expression));
     TypeScript.BinaryExpression = BinaryExpression;
@@ -3072,6 +3095,7 @@ var TypeScript;
             emitter.recordSourceMappingEnd(this);
             emitter.emitParensAndCommentsInPlace(this, false);
         };
+        __names(ConditionalExpression.prototype, ["typeCheck", "emit"]);
         return ConditionalExpression;
     }(Expression));
     TypeScript.ConditionalExpression = ConditionalExpression;
@@ -3114,6 +3138,7 @@ var TypeScript;
                 return this.value.toString();
             }
         };
+        __names(NumberLiteral.prototype, ["typeCheck", "treeViewLabel", "emit", "printLabel"]);
         return NumberLiteral;
     }(Expression));
     TypeScript.NumberLiteral = NumberLiteral;
@@ -3135,6 +3160,7 @@ var TypeScript;
             emitter.recordSourceMappingEnd(this);
             emitter.emitParensAndCommentsInPlace(this, false);
         };
+        __names(RegexLiteral.prototype, ["typeCheck", "emit"]);
         return RegexLiteral;
     }(Expression));
     TypeScript.RegexLiteral = RegexLiteral;
@@ -3162,6 +3188,7 @@ var TypeScript;
         StringLiteral.prototype.printLabel = function () {
             return this.text;
         };
+        __names(StringLiteral.prototype, ["emit", "typeCheck", "treeViewLabel", "printLabel"]);
         return StringLiteral;
     }(Expression));
     TypeScript.StringLiteral = StringLiteral;
@@ -3230,6 +3257,7 @@ var TypeScript;
                 return firstMod.actualText;
             }
         };
+        __names(ImportDeclaration.prototype, ["isStatementOrExpression", "emit", "typeCheck", "getAliasName", "firstAliasedModToString"]);
         return ImportDeclaration;
     }(ModuleElement));
     TypeScript.ImportDeclaration = ImportDeclaration;
@@ -3255,6 +3283,7 @@ var TypeScript;
         BoundDecl.prototype.printLabel = function () {
             return this.treeViewLabel();
         };
+        __names(BoundDecl.prototype, ["isStatementOrExpression", "isPrivate", "isPublic", "isProperty", "typeCheck", "printLabel"]);
         return BoundDecl;
     }(AST));
     TypeScript.BoundDecl = BoundDecl;
@@ -3272,6 +3301,7 @@ var TypeScript;
         VarDecl.prototype.treeViewLabel = function () {
             return "var " + this.id.actualText;
         };
+        __names(VarDecl.prototype, ["isAmbient", "isExported", "isStatic", "emit", "treeViewLabel"]);
         return VarDecl;
     }(BoundDecl));
     TypeScript.VarDecl = VarDecl;
@@ -3294,6 +3324,7 @@ var TypeScript;
             emitter.recordSourceMappingEnd(this);
             emitter.emitParensAndCommentsInPlace(this, false);
         };
+        __names(ArgDecl.prototype, ["isOptionalArg", "treeViewLabel", "emit"]);
         return ArgDecl;
     }(BoundDecl));
     TypeScript.ArgDecl = ArgDecl;
@@ -3426,6 +3457,7 @@ var TypeScript;
         };
         FuncDecl.prototype.isSignature = function () { return (this.fncFlags & FncFlags.Signature) != FncFlags.None; };
         FuncDecl.prototype.hasStaticDeclarations = function () { return (!this.isConstructor && (this.statics.members.length > 0 || this.innerStaticFuncs.length > 0)); };
+        __names(FuncDecl.prototype, ["internalName", "hasSelfReference", "setHasSelfReference", "addCloRef", "addJumpRef", "buildControlFlow", "typeCheck", "emit", "getNameText", "isMethod", "isCallMember", "isConstructMember", "isIndexerMember", "isSpecialFn", "isAnonymousFn", "isAccessor", "isGetAccessor", "isSetAccessor", "isAmbient", "isExported", "isPrivate", "isPublic", "isStatic", "treeViewLabel", "ClearFlags", "isSignature", "hasStaticDeclarations"]);
         return FuncDecl;
     }(AST));
     TypeScript.FuncDecl = FuncDecl;
@@ -3506,6 +3538,7 @@ var TypeScript;
                 emitter.emitParensAndCommentsInPlace(this, false);
             }
         };
+        __names(Script.prototype, ["typeCheck", "treeViewLabel", "emitRequired", "emit"]);
         return Script;
     }(FuncDecl));
     TypeScript.Script = Script;
@@ -3555,6 +3588,7 @@ var TypeScript;
                 emitter.emitParensAndCommentsInPlace(this, false);
             }
         };
+        __names(ModuleDeclaration.prototype, ["isExported", "isAmbient", "isEnum", "recordNonInterface", "typeCheck", "emit"]);
         return ModuleDeclaration;
     }(NamedDeclaration));
     TypeScript.ModuleDeclaration = ModuleDeclaration;
@@ -3573,6 +3607,7 @@ var TypeScript;
         TypeDeclaration.prototype.isAmbient = function () {
             return hasFlag(this.varFlags, VarFlags.Ambient);
         };
+        __names(TypeDeclaration.prototype, ["isExported", "isAmbient"]);
         return TypeDeclaration;
     }(NamedDeclaration));
     TypeScript.TypeDeclaration = TypeDeclaration;
@@ -3592,6 +3627,7 @@ var TypeScript;
         ClassDeclaration.prototype.emit = function (emitter, tokenId, startLine) {
             emitter.emitJavascriptClass(this);
         };
+        __names(ClassDeclaration.prototype, ["typeCheck", "emit"]);
         return ClassDeclaration;
     }(TypeDeclaration));
     TypeScript.ClassDeclaration = ClassDeclaration;
@@ -3605,6 +3641,7 @@ var TypeScript;
         };
         InterfaceDeclaration.prototype.emit = function (emitter, tokenId, startLine) {
         };
+        __names(InterfaceDeclaration.prototype, ["typeCheck", "emit"]);
         return InterfaceDeclaration;
     }(TypeDeclaration));
     TypeScript.InterfaceDeclaration = InterfaceDeclaration;
@@ -3622,6 +3659,7 @@ var TypeScript;
             this.type = typeFlow.voidType;
             return this;
         };
+        __names(Statement.prototype, ["isLoop", "isStatementOrExpression", "isCompoundStatement", "typeCheck"]);
         return Statement;
     }(ModuleElement));
     TypeScript.Statement = Statement;
@@ -3657,6 +3695,7 @@ var TypeScript;
             context.current = bb;
             beforeBB.addSuccessor(bb);
         };
+        __names(LabeledStatement.prototype, ["emit", "typeCheck", "addToControlFlow"]);
         return LabeledStatement;
     }(Statement));
     TypeScript.LabeledStatement = LabeledStatement;
@@ -3713,6 +3752,7 @@ var TypeScript;
             typeFlow.typeCheck(this.statements);
             return this;
         };
+        __names(Block.prototype, ["emit", "addToControlFlow", "typeCheck"]);
         return Block;
     }(Statement));
     TypeScript.Block = Block;
@@ -3765,6 +3805,7 @@ var TypeScript;
             emitter.writeToOutput(";");
             emitter.emitParensAndCommentsInPlace(this, false);
         };
+        __names(Jump.prototype, ["hasExplicitTarget", "setResolvedTarget", "addToControlFlow", "emit"]);
         return Jump;
     }(Statement));
     TypeScript.Jump = Jump;
@@ -3818,6 +3859,7 @@ var TypeScript;
             context.noContinuation = false;
             context.walker.options.goChildren = false;
         };
+        __names(WhileStatement.prototype, ["isLoop", "emit", "typeCheck", "addToControlFlow"]);
         return WhileStatement;
     }(Statement));
     TypeScript.WhileStatement = WhileStatement;
@@ -3875,6 +3917,7 @@ var TypeScript;
             }
             context.walker.options.goChildren = false;
         };
+        __names(DoWhileStatement.prototype, ["isLoop", "emit", "typeCheck", "addToControlFlow"]);
         return DoWhileStatement;
     }(Statement));
     TypeScript.DoWhileStatement = DoWhileStatement;
@@ -3954,6 +3997,7 @@ var TypeScript;
             }
             context.walker.options.goChildren = false;
         };
+        __names(IfStatement.prototype, ["isCompoundStatement", "emit", "typeCheck", "addToControlFlow"]);
         return IfStatement;
     }(Statement));
     TypeScript.IfStatement = IfStatement;
@@ -3986,6 +4030,7 @@ var TypeScript;
         ReturnStatement.prototype.typeCheck = function (typeFlow) {
             return typeFlow.typeCheckReturn(this);
         };
+        __names(ReturnStatement.prototype, ["emit", "addToControlFlow", "typeCheck"]);
         return ReturnStatement;
     }(Statement));
     TypeScript.ReturnStatement = ReturnStatement;
@@ -4110,6 +4155,7 @@ var TypeScript;
             loopHeader.addSuccessor(afterLoop);
             context.walker.options.goChildren = false;
         };
+        __names(ForInStatement.prototype, ["isLoop", "isFiltered", "emit", "typeCheck", "addToControlFlow"]);
         return ForInStatement;
     }(Statement));
     TypeScript.ForInStatement = ForInStatement;
@@ -4202,6 +4248,7 @@ var TypeScript;
             }
             context.walker.options.goChildren = false;
         };
+        __names(ForStatement.prototype, ["isLoop", "emit", "typeCheck", "addToControlFlow"]);
         return ForStatement;
     }(Statement));
     TypeScript.ForStatement = ForStatement;
@@ -4229,6 +4276,7 @@ var TypeScript;
         WithStatement.prototype.typeCheck = function (typeFlow) {
             return typeFlow.typeCheckWith(this);
         };
+        __names(WithStatement.prototype, ["isCompoundStatement", "emit", "typeCheck"]);
         return WithStatement;
     }(Statement));
     TypeScript.WithStatement = WithStatement;
@@ -4302,6 +4350,7 @@ var TypeScript;
             }
             context.walker.options.goChildren = false;
         };
+        __names(SwitchStatement.prototype, ["isCompoundStatement", "emit", "typeCheck", "addToControlFlow"]);
         return SwitchStatement;
     }(Statement));
     TypeScript.SwitchStatement = SwitchStatement;
@@ -4356,6 +4405,7 @@ var TypeScript;
             context.noContinuation = false;
             context.walker.options.goChildren = false;
         };
+        __names(CaseStatement.prototype, ["emit", "typeCheck", "addToControlFlow"]);
         return CaseStatement;
     }(Statement));
     TypeScript.CaseStatement = CaseStatement;
@@ -4387,6 +4437,7 @@ var TypeScript;
             typeFlow.inTypeRefTypeCheck = prevInTCTR;
             return this;
         };
+        __names(TypeReference.prototype, ["emit", "typeCheck"]);
         return TypeReference;
     }(AST));
     TypeScript.TypeReference = TypeReference;
@@ -4433,6 +4484,7 @@ var TypeScript;
             context.popStatement();
             context.walker.options.goChildren = false;
         };
+        __names(TryFinally.prototype, ["isCompoundStatement", "emit", "typeCheck", "addToControlFlow"]);
         return TryFinally;
     }(Statement));
     TypeScript.TryFinally = TryFinally;
@@ -4484,6 +4536,7 @@ var TypeScript;
             this.type = typeFlow.voidType;
             return this;
         };
+        __names(TryCatch.prototype, ["isCompoundStatement", "emit", "addToControlFlow", "typeCheck"]);
         return TryCatch;
     }(Statement));
     TypeScript.TryCatch = TryCatch;
@@ -4513,6 +4566,7 @@ var TypeScript;
             context.walker.options.goChildren = false;
             context.noContinuation = false;
         };
+        __names(Try.prototype, ["emit", "typeCheck", "addToControlFlow"]);
         return Try;
     }(Statement));
     TypeScript.Try = Try;
@@ -4587,6 +4641,7 @@ var TypeScript;
             typeFlow.scope = prevScope;
             return this;
         };
+        __names(Catch.prototype, ["emit", "addToControlFlow", "typeCheck"]);
         return Catch;
     }(Statement));
     TypeScript.Catch = Catch;
@@ -4616,6 +4671,7 @@ var TypeScript;
             this.body = typeFlow.typeCheck(this.body);
             return this;
         };
+        __names(Finally.prototype, ["emit", "addToControlFlow", "typeCheck"]);
         return Finally;
     }(Statement));
     TypeScript.Finally = Finally;
@@ -4643,6 +4699,7 @@ var TypeScript;
             }
             return this.text;
         };
+        __names(Comment.prototype, ["getText"]);
         return Comment;
     }(AST));
     TypeScript.Comment = Comment;
@@ -4658,6 +4715,7 @@ var TypeScript;
             emitter.recordSourceMappingEnd(this);
             emitter.emitParensAndCommentsInPlace(this, false);
         };
+        __names(DebuggerStatement.prototype, ["emit"]);
         return DebuggerStatement;
     }(Statement));
     TypeScript.DebuggerStatement = DebuggerStatement;
diff --git a/tests/baselines/reference/parserRealSource12.js b/tests/baselines/reference/parserRealSource12.js
index fccb1fa45e087..de2f0bcc4a32d 100644
--- a/tests/baselines/reference/parserRealSource12.js
+++ b/tests/baselines/reference/parserRealSource12.js
@@ -533,6 +533,20 @@ module TypeScript {
 //// [parserRealSource12.js]
 // Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0. 
 // See LICENSE.txt in the project root for complete license information.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 ///<reference path='typescript.ts' />
 var TypeScript;
 (function (TypeScript) {
@@ -547,6 +561,7 @@ var TypeScript;
             this.goChildren = !stop;
             this.goNextSibling = !stop;
         };
+        __names(AstWalkOptions.prototype, ["stopWalk"]);
         return AstWalkOptions;
     }());
     TypeScript.AstWalkOptions = AstWalkOptions;
@@ -585,6 +600,7 @@ var TypeScript;
                 return preAst;
             }
         };
+        __names(AstWalker.prototype, ["walk"]);
         return AstWalker;
     }());
     var AstWalkerFactory = (function () {
@@ -719,6 +735,7 @@ var TypeScript;
                 }
             }
         };
+        __names(AstWalkerFactory.prototype, ["walk", "getWalker", "getSlowWalker", "initChildrenWalkers"]);
         return AstWalkerFactory;
     }());
     TypeScript.AstWalkerFactory = AstWalkerFactory;
diff --git a/tests/baselines/reference/parserRealSource14.js b/tests/baselines/reference/parserRealSource14.js
index 635d122db04eb..86786c8f67825 100644
--- a/tests/baselines/reference/parserRealSource14.js
+++ b/tests/baselines/reference/parserRealSource14.js
@@ -578,6 +578,20 @@ module TypeScript {
 //// [parserRealSource14.js]
 // Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0. 
 // See LICENSE.txt in the project root for complete license information.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 ///<reference path='typescript.ts' />
 var TypeScript;
 (function (TypeScript) {
@@ -939,6 +953,7 @@ var TypeScript;
                 this.asts[this.top - 0].nodeType === TypeScript.NodeType.Block &&
                 this.asts[this.top - 0].isStatementBlock === false;
         };
+        __names(AstPath.prototype, ["clone", "pop", "push", "up", "down", "nodeType", "ast", "parent", "count", "get", "isNameOfClass", "isNameOfInterface", "isNameOfArgument", "isNameOfVariable", "isNameOfModule", "isNameOfFunction", "isChildOfScript", "isChildOfModule", "isChildOfClass", "isArgumentOfClassConstructor", "isChildOfInterface", "isTopLevelImplicitModule", "isBodyOfTopLevelImplicitModule", "isBodyOfScript", "isBodyOfSwitch", "isBodyOfModule", "isBodyOfClass", "isBodyOfFunction", "isBodyOfInterface", "isBodyOfBlock", "isBodyOfFor", "isBodyOfCase", "isBodyOfTry", "isBodyOfCatch", "isBodyOfDoWhile", "isBodyOfWhile", "isBodyOfForIn", "isBodyOfWith", "isBodyOfFinally", "isCaseOfSwitch", "isDefaultCaseOfSwitch", "isListOfObjectLit", "isBodyOfObjectLit", "isEmptyListOfObjectLit", "isMemberOfObjectLit", "isNameOfMemberOfObjectLit", "isListOfArrayLit", "isTargetOfMember", "isMemberOfMember", "isItemOfList", "isThenOfIf", "isElseOfIf", "isBodyOfDefaultCase", "isSingleStatementList", "isArgumentListOfFunction", "isArgumentOfFunction", "isArgumentListOfCall", "isArgumentListOfNew", "isSynthesizedBlock"]);
         return AstPath;
     }());
     TypeScript.AstPath = AstPath;
diff --git a/tests/baselines/reference/parserRealSource4.js b/tests/baselines/reference/parserRealSource4.js
index 39d17fb6ef4f3..1b2f8eb5fa1f6 100644
--- a/tests/baselines/reference/parserRealSource4.js
+++ b/tests/baselines/reference/parserRealSource4.js
@@ -298,6 +298,20 @@ module TypeScript {
 //// [parserRealSource4.js]
 // Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0. 
 // See LICENSE.txt in the project root for complete license information.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 ///<reference path='typescript.ts' />
 var TypeScript;
 (function (TypeScript) {
@@ -387,6 +401,7 @@ var TypeScript;
                 return (null);
             }
         };
+        __names(StringHashTable.prototype, ["getAllKeys", "add", "addOrUpdate", "map", "every", "some", "count", "lookup"]);
         return StringHashTable;
     }());
     TypeScript.StringHashTable = StringHashTable;
@@ -440,6 +455,7 @@ var TypeScript;
                 return this.secondaryTable.lookup(key);
             }
         };
+        __names(DualStringHashTable.prototype, ["getAllKeys", "add", "addOrUpdate", "map", "every", "some", "count", "lookup"]);
         return DualStringHashTable;
     }());
     TypeScript.DualStringHashTable = DualStringHashTable;
@@ -525,6 +541,7 @@ var TypeScript;
             }
             return (null);
         };
+        __names(HashTable.prototype, ["add", "remove", "count", "lookup"]);
         return HashTable;
     }());
     TypeScript.HashTable = HashTable;
@@ -558,6 +575,7 @@ var TypeScript;
             this.values[this.values.length] = data;
             return true;
         };
+        __names(SimpleHashTable.prototype, ["lookup", "add"]);
         return SimpleHashTable;
     }());
     TypeScript.SimpleHashTable = SimpleHashTable;
diff --git a/tests/baselines/reference/parserRealSource5.js b/tests/baselines/reference/parserRealSource5.js
index 4f4db59746e34..a08f8ccb73b31 100644
--- a/tests/baselines/reference/parserRealSource5.js
+++ b/tests/baselines/reference/parserRealSource5.js
@@ -69,6 +69,20 @@ module TypeScript {
 //// [parserRealSource5.js]
 // Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0. 
 // See LICENSE.txt in the project root for complete license information.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 ///<reference path='typescript.ts' />
 var TypeScript;
 (function (TypeScript) {
@@ -110,6 +124,7 @@ var TypeScript;
             this.outfile.WriteLine(this.builder);
             this.builder = "";
         };
+        __names(PrintContext.prototype, ["increaseIndent", "decreaseIndent", "startLine", "write", "writeLine"]);
         return PrintContext;
     }());
     TypeScript.PrintContext = PrintContext;
diff --git a/tests/baselines/reference/parserRealSource6.js b/tests/baselines/reference/parserRealSource6.js
index c7dcc5e497bfa..cce9fd32aa4ac 100644
--- a/tests/baselines/reference/parserRealSource6.js
+++ b/tests/baselines/reference/parserRealSource6.js
@@ -224,6 +224,20 @@ module TypeScript {
 //// [parserRealSource6.js]
 // Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0. 
 // See LICENSE.txt in the project root for complete license information.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 ///<reference path='typescript.ts' />
 var TypeScript;
 (function (TypeScript) {
@@ -292,6 +306,7 @@ var TypeScript;
             }
             return this.scriptFragment;
         };
+        __names(EnclosingScopeContext.prototype, ["getScope", "getObjectLiteralScope", "getScopeAST", "getScopePosition", "getScriptFragmentStartAST", "getScriptFragmentPosition", "getScriptFragment"]);
         return EnclosingScopeContext;
     }());
     TypeScript.EnclosingScopeContext = EnclosingScopeContext;
diff --git a/tests/baselines/reference/parserRealSource8.js b/tests/baselines/reference/parserRealSource8.js
index d23297954bec9..b813855eeb779 100644
--- a/tests/baselines/reference/parserRealSource8.js
+++ b/tests/baselines/reference/parserRealSource8.js
@@ -469,6 +469,20 @@ module TypeScript {
 //// [parserRealSource8.js]
 // Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0. 
 // See LICENSE.txt in the project root for complete license information.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 ///<reference path='typescript.ts' />
 var TypeScript;
 (function (TypeScript) {
@@ -524,6 +538,7 @@ var TypeScript;
                 return false;
             }
         };
+        __names(ScopeSearchFilter.prototype, ["reset", "update"]);
         return ScopeSearchFilter;
     }());
     TypeScript.ScopeSearchFilter = ScopeSearchFilter;
diff --git a/tests/baselines/reference/parserRealSource9.js b/tests/baselines/reference/parserRealSource9.js
index e278f88c8e9fe..7619c17c4bc13 100644
--- a/tests/baselines/reference/parserRealSource9.js
+++ b/tests/baselines/reference/parserRealSource9.js
@@ -212,6 +212,20 @@ module TypeScript {
 //// [parserRealSource9.js]
 // Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0. 
 // See LICENSE.txt in the project root for complete license information.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 ///<reference path='typescript.ts' />
 var TypeScript;
 (function (TypeScript) {
@@ -395,6 +409,7 @@ var TypeScript;
                 binder.bindSymbol(scope, sym);
             }, this);
         };
+        __names(Binder.prototype, ["resolveBaseTypeLinks", "resolveBases", "resolveSignatureGroup", "bindType", "bindSymbol", "bind"]);
         return Binder;
     }());
     TypeScript.Binder = Binder;
diff --git a/tests/baselines/reference/parserSuperExpression1.js b/tests/baselines/reference/parserSuperExpression1.js
index 02bd49653fe6e..74bfa264c55fa 100644
--- a/tests/baselines/reference/parserSuperExpression1.js
+++ b/tests/baselines/reference/parserSuperExpression1.js
@@ -14,12 +14,27 @@ module M1.M2 {
 }
 
 //// [parserSuperExpression1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function () {
         _super.prototype.foo.call(this);
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var M1;
@@ -32,6 +47,7 @@ var M1;
             C.prototype.foo = function () {
                 _super.prototype.foo.call(this);
             };
+            __names(C.prototype, ["foo"]);
             return C;
         }());
     })(M2 = M1.M2 || (M1.M2 = {}));
diff --git a/tests/baselines/reference/parserSuperExpression2.js b/tests/baselines/reference/parserSuperExpression2.js
index ebd43ad318033..5b3349e98c77f 100644
--- a/tests/baselines/reference/parserSuperExpression2.js
+++ b/tests/baselines/reference/parserSuperExpression2.js
@@ -6,11 +6,26 @@ class C {
 }
 
 //// [parserSuperExpression2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.M = function () {
         _super.prototype..call(this, 0);
     };
+    __names(C.prototype, ["M"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserSuperExpression3.js b/tests/baselines/reference/parserSuperExpression3.js
index 064353669c80c..e994dc9be0655 100644
--- a/tests/baselines/reference/parserSuperExpression3.js
+++ b/tests/baselines/reference/parserSuperExpression3.js
@@ -6,11 +6,26 @@ class C {
 }
 
 //// [parserSuperExpression3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.M = function () {
         this["super"](0);
     };
+    __names(C.prototype, ["M"]);
     return C;
 }());
diff --git a/tests/baselines/reference/parserSuperExpression4.js b/tests/baselines/reference/parserSuperExpression4.js
index 97f6ad26c4b63..5ecfd475faa51 100644
--- a/tests/baselines/reference/parserSuperExpression4.js
+++ b/tests/baselines/reference/parserSuperExpression4.js
@@ -14,12 +14,27 @@ module M1.M2 {
 }
 
 //// [parserSuperExpression4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function () {
         _super.prototype.foo = 1;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var M1;
@@ -32,6 +47,7 @@ var M1;
             C.prototype.foo = function () {
                 _super.prototype.foo = 1;
             };
+            __names(C.prototype, ["foo"]);
             return C;
         }());
     })(M2 = M1.M2 || (M1.M2 = {}));
diff --git a/tests/baselines/reference/parserharness.js b/tests/baselines/reference/parserharness.js
index 2275a1f682e1b..09be994d88ac9 100644
--- a/tests/baselines/reference/parserharness.js
+++ b/tests/baselines/reference/parserharness.js
@@ -2096,6 +2096,20 @@ module Harness {
 // See the License for the specific language governing permissions and
 // limitations under the License.
 //
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -2286,6 +2300,7 @@ var Harness;
         Logger.prototype.error = function (test, error) { };
         Logger.prototype.comment = function (comment) { };
         Logger.prototype.verify = function (test, passed, actual, expected, message) { };
+        __names(Logger.prototype, ["start", "end", "scenarioStart", "scenarioEnd", "testStart", "pass", "bug", "fail", "error", "comment", "verify"]);
         return Logger;
     }());
     Harness.Logger = Logger;
@@ -2376,6 +2391,7 @@ var Harness;
                 errorHandlerStack[errorHandlerStack.length - 1](e);
             }
         };
+        __names(Runnable.prototype, ["addChild", "call", "run", "runBlock", "runChild"]);
         // The current stack of Runnable objects
         Runnable.currentStack = [];
         Runnable.errorHandlerStack = [];
@@ -2414,6 +2430,7 @@ var Harness;
                 });
             }
         };
+        __names(TestCase.prototype, ["addChild", "run"]);
         return TestCase;
     }(Runnable));
     Harness.TestCase = TestCase;
@@ -2470,6 +2487,7 @@ var Harness;
             emitLog('scenarioEnd', metadata);
             done();
         };
+        __names(Scenario.prototype, ["run", "runChildren"]);
         return Scenario;
     }(Runnable));
     Harness.Scenario = Scenario;
@@ -2501,6 +2519,7 @@ var Harness;
             Perf.runBenchmarks();
             emitLog('end');
         };
+        __names(Run.prototype, ["run", "runChildren"]);
         return Run;
     }(Runnable));
     Harness.Run = Run;
@@ -2536,6 +2555,7 @@ var Harness;
                 // Set time to MS.
                 this.time = (Clock.now() - this.startTime) / Clock.resolution * 1000;
             };
+            __names(Timer.prototype, ["start", "end"]);
             return Timer;
         }());
         Perf.Timer = Timer;
@@ -2579,6 +2599,7 @@ var Harness;
                 }
                 return Math.sqrt(sumOfSquares / this.data.length);
             };
+            __names(Dataset.prototype, ["add", "mean", "min", "max", "stdDev"]);
             return Dataset;
         }());
         Perf.Dataset = Dataset;
@@ -2598,6 +2619,7 @@ var Harness;
                 this.results[name] = this.results[name] || new Dataset();
                 this.results[name].add(timing);
             };
+            __names(Benchmark.prototype, ["bench", "before", "beforeEach", "after", "afterEach", "addTimingFor"]);
             return Benchmark;
         }());
         Perf.Benchmark = Benchmark;
@@ -2679,6 +2701,7 @@ var Harness;
                 this.lines = [];
                 this.currentLine = "";
             };
+            __names(WriterAggregator.prototype, ["Write", "WriteLine", "Close", "reset"]);
             return WriterAggregator;
         }());
         Compiler.WriterAggregator = WriterAggregator;
@@ -2715,6 +2738,7 @@ var Harness;
                 }
                 return result;
             };
+            __names(EmitterIOHost.prototype, ["createFile", "directoryExists", "fileExists", "resolvePath", "reset", "toArray"]);
             return EmitterIOHost;
         }());
         Compiler.EmitterIOHost = EmitterIOHost;
@@ -2879,6 +2903,7 @@ var Harness;
                     _this.assertNotAssignmentCompatibleWith(notThese);
                 });
             };
+            __names(Type.prototype, ["normalizeToArray", "compilesOk", "isSubtypeOf", "assertSubtypeOf", "assertNotSubtypeOf", "isAssignmentCompatibleWith", "assertAssignmentCompatibleWith", "assertNotAssignmentCompatibleWith", "assertThisCanBeAssignedTo"]);
             return Type;
         }());
         Compiler.Type = Type;
@@ -3020,6 +3045,7 @@ var Harness;
                     assert.equal(actualType.type, expectedType);
                 });
             };
+            __names(TypeFactory.prototype, ["get", "getTypeInfoName", "isOfType"]);
             return TypeFactory;
         }());
         Compiler.TypeFactory = TypeFactory;
@@ -3116,6 +3142,7 @@ var Harness;
                 }
                 return false;
             };
+            __names(CompilerResult.prototype, ["isErrorAt"]);
             return CompilerResult;
         }());
         Compiler.CompilerResult = CompilerResult;
@@ -3130,6 +3157,7 @@ var Harness;
             CompilerError.prototype.toString = function () {
                 return this.file + "(" + this.line + "," + this.column + "): " + this.message;
             };
+            __names(CompilerError.prototype, ["toString"]);
             return CompilerError;
         }());
         Compiler.CompilerError = CompilerError;
@@ -3458,6 +3486,7 @@ var Harness;
             var aggDelta = entries.map(function (x) { return x.editRange.delta; }).reduce(function (prev, current) { return prev + current; });
             return new TypeScript.ScriptEditRange(minDistFromStart, entries[0].length - minDistFromEnd, aggDelta);
         };
+        __names(ScriptInfo.prototype, ["updateContent", "editContent", "getEditRangeSinceVersion"]);
         return ScriptInfo;
     }());
     Harness.ScriptInfo = ScriptInfo;
@@ -3660,6 +3689,7 @@ var Harness;
         TypeScriptLS.prototype.getHostSettings = function () {
             return JSON.stringify({ usePullLanguageService: Harness.usePull });
         };
+        __names(TypeScriptLS.prototype, ["addDefaultLibrary", "addFile", "addScript", "updateScript", "editScript", "getScriptContent", "information", "debug", "warning", "error", "fatal", "log", "getCompilationSettings", "getScriptCount", "getScriptSourceText", "getScriptSourceLength", "getScriptId", "getScriptIsResident", "getScriptVersion", "getScriptEditRangeSinceVersion", "getLanguageService", "parseSourceText", "parseFile", "lineColToPosition", "positionToZeroBasedLineCol", "checkEdits", "applyEdits", "normalizeEdits", "getHostSettings"]);
         return TypeScriptLS;
     }());
     Harness.TypeScriptLS = TypeScriptLS;
diff --git a/tests/baselines/reference/parserindenter.js b/tests/baselines/reference/parserindenter.js
index 17f713189405a..5fc4aaca9a768 100644
--- a/tests/baselines/reference/parserindenter.js
+++ b/tests/baselines/reference/parserindenter.js
@@ -756,6 +756,20 @@ module Formatting {
 // See the License for the specific language governing permissions and
 // limitations under the License.
 //
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 ///<reference path='formatting.ts' />
 var Formatting;
 (function (Formatting) {
@@ -1339,6 +1353,7 @@ var Formatting;
             return token.tokenID === TypeScript.TokenID.StringLiteral &&
                 this.snapshot.GetLineNumberFromPosition(token.Span.endPosition()) > this.snapshot.GetLineNumberFromPosition(token.Span.startPosition());
         };
+        __names(Indenter.prototype, ["GetIndentationEdits", "GetIndentationEditsWorker", "GetCommentIndentationEdits", "GetSpecialCaseIndentation", "GetSpecialCaseIndentationForLCurly", "GetSpecialCaseIndentationForSemicolon", "GetSpecialCaseIndentationForComment", "CanIndentComment", "ApplyScriptBlockIndentation", "GetIndentEdit", "ApplyIndentationLevel", "GetIndentString", "ApplyIndentationDeltaFromParent", "ApplyIndentationDelta1", "ApplyIndentationDelta2", "GetIndentationDelta", "FillInheritedIndentation", "GetLineIndentationForOffset", "RegisterIndentation", "RegisterIndentation2", "AdjustStartOffsetIfNeeded", "IsMultiLineString"]);
         return Indenter;
     }());
     Formatting.Indenter = Indenter;
diff --git a/tests/baselines/reference/parsingClassRecoversWhenHittingUnexpectedSemicolon.js b/tests/baselines/reference/parsingClassRecoversWhenHittingUnexpectedSemicolon.js
index de5777feca800..96cbda63158b4 100644
--- a/tests/baselines/reference/parsingClassRecoversWhenHittingUnexpectedSemicolon.js
+++ b/tests/baselines/reference/parsingClassRecoversWhenHittingUnexpectedSemicolon.js
@@ -6,10 +6,25 @@ class C {
 
 
 //// [parsingClassRecoversWhenHittingUnexpectedSemicolon.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.f = function () { };
     ;
+    __names(C.prototype, ["f"]);
     return C;
 }());
diff --git a/tests/baselines/reference/primitiveConstraints2.js b/tests/baselines/reference/primitiveConstraints2.js
index c8c49b2a16487..d333bd95b9558 100644
--- a/tests/baselines/reference/primitiveConstraints2.js
+++ b/tests/baselines/reference/primitiveConstraints2.js
@@ -10,12 +10,27 @@ x.bar2(2, ""); // should error
 x.bar2<string>(2, ""); // should error
 
 //// [primitiveConstraints2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.bar2 = function (x, y) {
         return null;
     };
+    __names(C.prototype, ["bar2"]);
     return C;
 }());
 var x = new C();
diff --git a/tests/baselines/reference/primitiveMembers.js b/tests/baselines/reference/primitiveMembers.js
index 163c5c8873d83..ec9c66e35b206 100644
--- a/tests/baselines/reference/primitiveMembers.js
+++ b/tests/baselines/reference/primitiveMembers.js
@@ -32,6 +32,20 @@ class foo extends baz { public bar(){ return undefined}; }
 
 
 //// [primitiveMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -63,6 +77,7 @@ var baz = (function () {
     }
     baz.prototype.bar = function () { };
     ;
+    __names(baz.prototype, ["bar"]);
     return baz;
 }());
 var foo = (function (_super) {
@@ -72,5 +87,6 @@ var foo = (function (_super) {
     }
     foo.prototype.bar = function () { return undefined; };
     ;
+    __names(foo.prototype, ["bar"]);
     return foo;
 }(baz));
diff --git a/tests/baselines/reference/privacyClass.js b/tests/baselines/reference/privacyClass.js
index 95b12f4e2fa4f..5f5d2e807d7b6 100644
--- a/tests/baselines/reference/privacyClass.js
+++ b/tests/baselines/reference/privacyClass.js
@@ -129,6 +129,20 @@ export class glo_C12_public extends glo_c_private implements  glo_i_private, glo
 
 //// [privacyClass.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -147,6 +161,7 @@ var m1;
         }
         m1_c_public.prototype.f1 = function () {
         };
+        __names(m1_c_public.prototype, ["f1"]);
         return m1_c_public;
     }());
     m1.m1_c_public = m1_c_public;
@@ -245,6 +260,7 @@ var m2;
         }
         m2_c_public.prototype.f1 = function () {
         };
+        __names(m2_c_public.prototype, ["f1"]);
         return m2_c_public;
     }());
     m2.m2_c_public = m2_c_public;
@@ -341,6 +357,7 @@ var glo_c_public = (function () {
     }
     glo_c_public.prototype.f1 = function () {
     };
+    __names(glo_c_public.prototype, ["f1"]);
     return glo_c_public;
 }());
 exports.glo_c_public = glo_c_public;
diff --git a/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js b/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js
index 857d52e99bf17..10a5d57b9e258 100644
--- a/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js
+++ b/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js
@@ -98,6 +98,20 @@ class publicClassExtendingPublicClassInGlobal extends publicClassInGlobal {
 
 //// [privacyClassExtendsClauseDeclFile_externalModule.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -116,6 +130,7 @@ var publicModule;
         }
         publicClassInPublicModule.prototype.f1 = function () {
         };
+        __names(publicClassInPublicModule.prototype, ["f1"]);
         return publicClassInPublicModule;
     }());
     publicModule.publicClassInPublicModule = publicClassInPublicModule;
@@ -177,6 +192,7 @@ var privateModule;
         }
         publicClassInPrivateModule.prototype.f1 = function () {
         };
+        __names(publicClassInPrivateModule.prototype, ["f1"]);
         return publicClassInPrivateModule;
     }());
     privateModule.publicClassInPrivateModule = publicClassInPrivateModule;
@@ -236,6 +252,7 @@ var publicClass = (function () {
     }
     publicClass.prototype.f1 = function () {
     };
+    __names(publicClass.prototype, ["f1"]);
     return publicClass;
 }());
 exports.publicClass = publicClass;
@@ -290,6 +307,20 @@ var publicClassExtendingFromPrivateModuleClass = (function (_super) {
 }(privateModule.publicClassInPrivateModule));
 exports.publicClassExtendingFromPrivateModuleClass = publicClassExtendingFromPrivateModuleClass;
 //// [privacyClassExtendsClauseDeclFile_GlobalFile.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -307,6 +338,7 @@ var publicModuleInGlobal;
         }
         publicClassInPublicModule.prototype.f1 = function () {
         };
+        __names(publicClassInPublicModule.prototype, ["f1"]);
         return publicClassInPublicModule;
     }());
     publicModuleInGlobal.publicClassInPublicModule = publicClassInPublicModule;
diff --git a/tests/baselines/reference/privacyFunc.js b/tests/baselines/reference/privacyFunc.js
index b9c0e8e13c97b..844c9747bb30b 100644
--- a/tests/baselines/reference/privacyFunc.js
+++ b/tests/baselines/reference/privacyFunc.js
@@ -229,6 +229,20 @@ function f10_public(): C6_public {
 
 
 //// [privacyFunc.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var m1;
 (function (m1) {
     var C1_public = (function () {
@@ -236,6 +250,7 @@ var m1;
         }
         C1_public.prototype.f1 = function () {
         };
+        __names(C1_public.prototype, ["f1"]);
         return C1_public;
     }());
     m1.C1_public = C1_public;
@@ -279,6 +294,7 @@ var m1;
         C3_public.prototype.f12_public = function () {
             return new C2_private(); //error
         };
+        __names(C3_public.prototype, ["f1_private", "f2_public", "f3_private", "f4_public", "f5_private", "f6_public", "f7_private", "f8_public", "f9_private", "f10_public", "f11_private", "f12_public"]);
         return C3_public;
     }());
     m1.C3_public = C3_public;
@@ -317,6 +333,7 @@ var m1;
         C4_private.prototype.f12_public = function () {
             return new C2_private();
         };
+        __names(C4_private.prototype, ["f1_private", "f2_public", "f3_private", "f4_public", "f5_private", "f6_public", "f7_private", "f8_public", "f9_private", "f10_public", "f11_private", "f12_public"]);
         return C4_private;
     }());
     var C5_public = (function () {
@@ -404,6 +421,7 @@ var C7_public = (function () {
     C7_public.prototype.f10_public = function () {
         return new C6_public();
     };
+    __names(C7_public.prototype, ["f1_private", "f2_public", "f5_private", "f6_public", "f9_private", "f10_public"]);
     return C7_public;
 }());
 var C9_public = (function () {
diff --git a/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js b/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js
index 6b0ea3cafd220..03a235e954c1e 100644
--- a/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js
+++ b/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js
@@ -207,6 +207,20 @@ function createExportedWidget4() {
 exports.createExportedWidget4 = createExportedWidget4;
 //// [privacyFunctionCannotNameParameterTypeDeclFile_consumer.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var exporter = require("./privacyFunctionCannotNameParameterTypeDeclFile_exporter");
 var publicClassWithWithPrivateParmeterTypes = (function () {
@@ -229,6 +243,7 @@ var publicClassWithWithPrivateParmeterTypes = (function () {
     publicClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
         if (param === void 0) { param = exporter.createExportedWidget1(); }
     };
+    __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return publicClassWithWithPrivateParmeterTypes;
 }());
 exports.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -252,6 +267,7 @@ var publicClassWithWithPrivateParmeterTypes1 = (function () {
     publicClassWithWithPrivateParmeterTypes1.prototype.myPrivateMethod = function (param) {
         if (param === void 0) { param = exporter.createExportedWidget3(); }
     };
+    __names(publicClassWithWithPrivateParmeterTypes1.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return publicClassWithWithPrivateParmeterTypes1;
 }());
 exports.publicClassWithWithPrivateParmeterTypes1 = publicClassWithWithPrivateParmeterTypes1;
@@ -275,6 +291,7 @@ var privateClassWithWithPrivateParmeterTypes = (function () {
     privateClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
         if (param === void 0) { param = exporter.createExportedWidget1(); }
     };
+    __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return privateClassWithWithPrivateParmeterTypes;
 }());
 var privateClassWithWithPrivateParmeterTypes2 = (function () {
@@ -297,6 +314,7 @@ var privateClassWithWithPrivateParmeterTypes2 = (function () {
     privateClassWithWithPrivateParmeterTypes2.prototype.myPrivateMethod = function (param) {
         if (param === void 0) { param = exporter.createExportedWidget3(); }
     };
+    __names(privateClassWithWithPrivateParmeterTypes2.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return privateClassWithWithPrivateParmeterTypes2;
 }());
 function publicFunctionWithPrivateParmeterTypes(param) {
@@ -327,6 +345,7 @@ var publicClassWithPrivateModuleParameterTypes = (function () {
     publicClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
         if (param === void 0) { param = exporter.createExportedWidget2(); }
     };
+    __names(publicClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
     return publicClassWithPrivateModuleParameterTypes;
 }());
 exports.publicClassWithPrivateModuleParameterTypes = publicClassWithPrivateModuleParameterTypes;
@@ -344,6 +363,7 @@ var publicClassWithPrivateModuleParameterTypes2 = (function () {
     publicClassWithPrivateModuleParameterTypes2.prototype.myPublicMethod = function (param) {
         if (param === void 0) { param = exporter.createExportedWidget4(); }
     };
+    __names(publicClassWithPrivateModuleParameterTypes2.prototype, ["myPublicMethod"]);
     return publicClassWithPrivateModuleParameterTypes2;
 }());
 exports.publicClassWithPrivateModuleParameterTypes2 = publicClassWithPrivateModuleParameterTypes2;
@@ -369,6 +389,7 @@ var privateClassWithPrivateModuleParameterTypes = (function () {
     privateClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
         if (param === void 0) { param = exporter.createExportedWidget2(); }
     };
+    __names(privateClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
     return privateClassWithPrivateModuleParameterTypes;
 }());
 var privateClassWithPrivateModuleParameterTypes1 = (function () {
@@ -385,6 +406,7 @@ var privateClassWithPrivateModuleParameterTypes1 = (function () {
     privateClassWithPrivateModuleParameterTypes1.prototype.myPublicMethod = function (param) {
         if (param === void 0) { param = exporter.createExportedWidget4(); }
     };
+    __names(privateClassWithPrivateModuleParameterTypes1.prototype, ["myPublicMethod"]);
     return privateClassWithPrivateModuleParameterTypes1;
 }());
 function privateFunctionWithPrivateModuleParameterTypes(param) {
diff --git a/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js b/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js
index 61c7e0014db74..a015f0cb3d1ab 100644
--- a/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js
+++ b/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js
@@ -214,6 +214,20 @@ function createExportedWidget4() {
 exports.createExportedWidget4 = createExportedWidget4;
 //// [privacyFunctionReturnTypeDeclFile_consumer.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var exporter = require("./privacyFunctionReturnTypeDeclFile_exporter");
 var publicClassWithWithPrivateParmeterTypes = (function () {
@@ -249,6 +263,7 @@ var publicClassWithWithPrivateParmeterTypes = (function () {
         return exporter.createExportedWidget3();
         ;
     };
+    __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
     return publicClassWithWithPrivateParmeterTypes;
 }());
 exports.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -285,6 +300,7 @@ var privateClassWithWithPrivateParmeterTypes = (function () {
         return exporter.createExportedWidget3();
         ;
     };
+    __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
     return privateClassWithWithPrivateParmeterTypes;
 }());
 function publicFunctionWithPrivateParmeterTypes() {
@@ -316,6 +332,7 @@ var publicClassWithPrivateModuleReturnTypes = (function () {
     publicClassWithPrivateModuleReturnTypes.prototype.myPublicMethod1 = function () {
         return exporter.createExportedWidget4();
     };
+    __names(publicClassWithPrivateModuleReturnTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
     return publicClassWithPrivateModuleReturnTypes;
 }());
 exports.publicClassWithPrivateModuleReturnTypes = publicClassWithPrivateModuleReturnTypes;
@@ -342,6 +359,7 @@ var privateClassWithPrivateModuleReturnTypes = (function () {
     privateClassWithPrivateModuleReturnTypes.prototype.myPublicMethod1 = function () {
         return exporter.createExportedWidget4();
     };
+    __names(privateClassWithPrivateModuleReturnTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
     return privateClassWithPrivateModuleReturnTypes;
 }());
 function privateFunctionWithPrivateModuleReturnTypes() {
diff --git a/tests/baselines/reference/privacyFunctionParameterDeclFile.js b/tests/baselines/reference/privacyFunctionParameterDeclFile.js
index db00fb67d8a21..92ae70665859b 100644
--- a/tests/baselines/reference/privacyFunctionParameterDeclFile.js
+++ b/tests/baselines/reference/privacyFunctionParameterDeclFile.js
@@ -687,6 +687,20 @@ module publicModuleInGlobal {
 
 //// [privacyFunctionParameterDeclFile_externalModule.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var privateClass = (function () {
     function privateClass() {
@@ -712,6 +726,7 @@ var publicClassWithWithPrivateParmeterTypes = (function () {
     };
     publicClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
     };
+    __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return publicClassWithWithPrivateParmeterTypes;
 }());
 exports.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -728,6 +743,7 @@ var publicClassWithWithPublicParmeterTypes = (function () {
     };
     publicClassWithWithPublicParmeterTypes.prototype.myPrivateMethod = function (param) {
     };
+    __names(publicClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return publicClassWithWithPublicParmeterTypes;
 }());
 exports.publicClassWithWithPublicParmeterTypes = publicClassWithWithPublicParmeterTypes;
@@ -744,6 +760,7 @@ var privateClassWithWithPrivateParmeterTypes = (function () {
     };
     privateClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
     };
+    __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return privateClassWithWithPrivateParmeterTypes;
 }());
 var privateClassWithWithPublicParmeterTypes = (function () {
@@ -759,6 +776,7 @@ var privateClassWithWithPublicParmeterTypes = (function () {
     };
     privateClassWithWithPublicParmeterTypes.prototype.myPrivateMethod = function (param) {
     };
+    __names(privateClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return privateClassWithWithPublicParmeterTypes;
 }());
 function publicFunctionWithPrivateParmeterTypes(param) {
@@ -780,6 +798,7 @@ var publicClassWithPrivateModuleParameterTypes = (function () {
     };
     publicClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
     };
+    __names(publicClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
     return publicClassWithPrivateModuleParameterTypes;
 }());
 exports.publicClassWithPrivateModuleParameterTypes = publicClassWithPrivateModuleParameterTypes;
@@ -795,6 +814,7 @@ var privateClassWithPrivateModuleParameterTypes = (function () {
     };
     privateClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
     };
+    __names(privateClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
     return privateClassWithPrivateModuleParameterTypes;
 }());
 function privateFunctionWithPrivateModuleParameterTypes(param) {
@@ -825,6 +845,7 @@ var publicModule;
         };
         publicClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPrivateParmeterTypes;
     }());
     publicModule.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -841,6 +862,7 @@ var publicModule;
         };
         publicClassWithWithPublicParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(publicClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPublicParmeterTypes;
     }());
     publicModule.publicClassWithWithPublicParmeterTypes = publicClassWithWithPublicParmeterTypes;
@@ -857,6 +879,7 @@ var publicModule;
         };
         privateClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPrivateParmeterTypes;
     }());
     var privateClassWithWithPublicParmeterTypes = (function () {
@@ -872,6 +895,7 @@ var publicModule;
         };
         privateClassWithWithPublicParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(privateClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPublicParmeterTypes;
     }());
     function publicFunctionWithPrivateParmeterTypes(param) {
@@ -893,6 +917,7 @@ var publicModule;
         };
         publicClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
         };
+        __names(publicClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
         return publicClassWithPrivateModuleParameterTypes;
     }());
     publicModule.publicClassWithPrivateModuleParameterTypes = publicClassWithPrivateModuleParameterTypes;
@@ -908,6 +933,7 @@ var publicModule;
         };
         privateClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
         };
+        __names(privateClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
         return privateClassWithPrivateModuleParameterTypes;
     }());
     function privateFunctionWithPrivateModuleParameterTypes(param) {
@@ -939,6 +965,7 @@ var privateModule;
         };
         publicClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPrivateParmeterTypes;
     }());
     privateModule.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -955,6 +982,7 @@ var privateModule;
         };
         publicClassWithWithPublicParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(publicClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPublicParmeterTypes;
     }());
     privateModule.publicClassWithWithPublicParmeterTypes = publicClassWithWithPublicParmeterTypes;
@@ -971,6 +999,7 @@ var privateModule;
         };
         privateClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPrivateParmeterTypes;
     }());
     var privateClassWithWithPublicParmeterTypes = (function () {
@@ -986,6 +1015,7 @@ var privateModule;
         };
         privateClassWithWithPublicParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(privateClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPublicParmeterTypes;
     }());
     function publicFunctionWithPrivateParmeterTypes(param) {
@@ -1007,6 +1037,7 @@ var privateModule;
         };
         publicClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
         };
+        __names(publicClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
         return publicClassWithPrivateModuleParameterTypes;
     }());
     privateModule.publicClassWithPrivateModuleParameterTypes = publicClassWithPrivateModuleParameterTypes;
@@ -1022,12 +1053,27 @@ var privateModule;
         };
         privateClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
         };
+        __names(privateClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
         return privateClassWithPrivateModuleParameterTypes;
     }());
     function privateFunctionWithPrivateModuleParameterTypes(param) {
     }
 })(privateModule || (privateModule = {}));
 //// [privacyFunctionParameterDeclFile_GlobalFile.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var publicClassInGlobal = (function () {
     function publicClassInGlobal() {
     }
@@ -1046,6 +1092,7 @@ var publicClassWithWithPublicParmeterTypesInGlobal = (function () {
     };
     publicClassWithWithPublicParmeterTypesInGlobal.prototype.myPrivateMethod = function (param) {
     };
+    __names(publicClassWithWithPublicParmeterTypesInGlobal.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return publicClassWithWithPublicParmeterTypesInGlobal;
 }());
 function publicFunctionWithPublicParmeterTypesInGlobal(param) {
@@ -1089,6 +1136,7 @@ var publicModuleInGlobal;
             };
             publicClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
             };
+            __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
             return publicClassWithWithPrivateParmeterTypes;
         }());
         privateModule.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -1105,6 +1153,7 @@ var publicModuleInGlobal;
             };
             publicClassWithWithPublicParmeterTypes.prototype.myPrivateMethod = function (param) {
             };
+            __names(publicClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
             return publicClassWithWithPublicParmeterTypes;
         }());
         privateModule.publicClassWithWithPublicParmeterTypes = publicClassWithWithPublicParmeterTypes;
@@ -1121,6 +1170,7 @@ var publicModuleInGlobal;
             };
             privateClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
             };
+            __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
             return privateClassWithWithPrivateParmeterTypes;
         }());
         var privateClassWithWithPublicParmeterTypes = (function () {
@@ -1136,6 +1186,7 @@ var publicModuleInGlobal;
             };
             privateClassWithWithPublicParmeterTypes.prototype.myPrivateMethod = function (param) {
             };
+            __names(privateClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
             return privateClassWithWithPublicParmeterTypes;
         }());
         function publicFunctionWithPrivateParmeterTypes(param) {
@@ -1157,6 +1208,7 @@ var publicModuleInGlobal;
             };
             publicClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
             };
+            __names(publicClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
             return publicClassWithPrivateModuleParameterTypes;
         }());
         privateModule.publicClassWithPrivateModuleParameterTypes = publicClassWithPrivateModuleParameterTypes;
@@ -1172,6 +1224,7 @@ var publicModuleInGlobal;
             };
             privateClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
             };
+            __names(privateClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
             return privateClassWithPrivateModuleParameterTypes;
         }());
         function privateFunctionWithPrivateModuleParameterTypes(param) {
@@ -1190,6 +1243,7 @@ var publicModuleInGlobal;
         };
         publicClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPrivateParmeterTypes;
     }());
     publicModuleInGlobal.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -1206,6 +1260,7 @@ var publicModuleInGlobal;
         };
         publicClassWithWithPublicParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(publicClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPublicParmeterTypes;
     }());
     publicModuleInGlobal.publicClassWithWithPublicParmeterTypes = publicClassWithWithPublicParmeterTypes;
@@ -1222,6 +1277,7 @@ var publicModuleInGlobal;
         };
         privateClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPrivateParmeterTypes;
     }());
     var privateClassWithWithPublicParmeterTypes = (function () {
@@ -1237,6 +1293,7 @@ var publicModuleInGlobal;
         };
         privateClassWithWithPublicParmeterTypes.prototype.myPrivateMethod = function (param) {
         };
+        __names(privateClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPublicParmeterTypes;
     }());
     function publicFunctionWithPrivateParmeterTypes(param) {
@@ -1258,6 +1315,7 @@ var publicModuleInGlobal;
         };
         publicClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
         };
+        __names(publicClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
         return publicClassWithPrivateModuleParameterTypes;
     }());
     publicModuleInGlobal.publicClassWithPrivateModuleParameterTypes = publicClassWithPrivateModuleParameterTypes;
@@ -1273,6 +1331,7 @@ var publicModuleInGlobal;
         };
         privateClassWithPrivateModuleParameterTypes.prototype.myPublicMethod = function (param) {
         };
+        __names(privateClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod"]);
         return privateClassWithPrivateModuleParameterTypes;
     }());
     function privateFunctionWithPrivateModuleParameterTypes(param) {
diff --git a/tests/baselines/reference/privacyFunctionReturnTypeDeclFile.js b/tests/baselines/reference/privacyFunctionReturnTypeDeclFile.js
index d3136f4310ed3..70d24560354f5 100644
--- a/tests/baselines/reference/privacyFunctionReturnTypeDeclFile.js
+++ b/tests/baselines/reference/privacyFunctionReturnTypeDeclFile.js
@@ -1194,6 +1194,20 @@ module publicModuleInGlobal {
 
 //// [privacyFunctionReturnTypeDeclFile_externalModule.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var privateClass = (function () {
     function privateClass() {
@@ -1233,6 +1247,7 @@ var publicClassWithWithPrivateParmeterTypes = (function () {
     publicClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod1 = function () {
         return new privateClass();
     };
+    __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
     return publicClassWithWithPrivateParmeterTypes;
 }());
 exports.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -1263,6 +1278,7 @@ var publicClassWithWithPublicParmeterTypes = (function () {
     publicClassWithWithPublicParmeterTypes.prototype.myPrivateMethod1 = function () {
         return new publicClass();
     };
+    __names(publicClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
     return publicClassWithWithPublicParmeterTypes;
 }());
 exports.publicClassWithWithPublicParmeterTypes = publicClassWithWithPublicParmeterTypes;
@@ -1293,6 +1309,7 @@ var privateClassWithWithPrivateParmeterTypes = (function () {
     privateClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod1 = function () {
         return new privateClass();
     };
+    __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
     return privateClassWithWithPrivateParmeterTypes;
 }());
 var privateClassWithWithPublicParmeterTypes = (function () {
@@ -1322,6 +1339,7 @@ var privateClassWithWithPublicParmeterTypes = (function () {
     privateClassWithWithPublicParmeterTypes.prototype.myPrivateMethod1 = function () {
         return new publicClass();
     };
+    __names(privateClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
     return privateClassWithWithPublicParmeterTypes;
 }());
 function publicFunctionWithPrivateParmeterTypes() {
@@ -1367,6 +1385,7 @@ var publicClassWithPrivateModuleParameterTypes = (function () {
     publicClassWithPrivateModuleParameterTypes.prototype.myPublicMethod1 = function () {
         return new privateModule.publicClass();
     };
+    __names(publicClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
     return publicClassWithPrivateModuleParameterTypes;
 }());
 exports.publicClassWithPrivateModuleParameterTypes = publicClassWithPrivateModuleParameterTypes;
@@ -1393,6 +1412,7 @@ var privateClassWithPrivateModuleParameterTypes = (function () {
     privateClassWithPrivateModuleParameterTypes.prototype.myPublicMethod1 = function () {
         return new privateModule.publicClass();
     };
+    __names(privateClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
     return privateClassWithPrivateModuleParameterTypes;
 }());
 function privateFunctionWithPrivateModuleParameterTypes() {
@@ -1441,6 +1461,7 @@ var publicModule;
         publicClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new privateClass();
         };
+        __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return publicClassWithWithPrivateParmeterTypes;
     }());
     publicModule.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -1471,6 +1492,7 @@ var publicModule;
         publicClassWithWithPublicParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new publicClass();
         };
+        __names(publicClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return publicClassWithWithPublicParmeterTypes;
     }());
     publicModule.publicClassWithWithPublicParmeterTypes = publicClassWithWithPublicParmeterTypes;
@@ -1501,6 +1523,7 @@ var publicModule;
         privateClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new privateClass();
         };
+        __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return privateClassWithWithPrivateParmeterTypes;
     }());
     var privateClassWithWithPublicParmeterTypes = (function () {
@@ -1530,6 +1553,7 @@ var publicModule;
         privateClassWithWithPublicParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new publicClass();
         };
+        __names(privateClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return privateClassWithWithPublicParmeterTypes;
     }());
     function publicFunctionWithPrivateParmeterTypes() {
@@ -1575,6 +1599,7 @@ var publicModule;
         publicClassWithPrivateModuleParameterTypes.prototype.myPublicMethod1 = function () {
             return new privateModule.publicClass();
         };
+        __names(publicClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
         return publicClassWithPrivateModuleParameterTypes;
     }());
     publicModule.publicClassWithPrivateModuleParameterTypes = publicClassWithPrivateModuleParameterTypes;
@@ -1601,6 +1626,7 @@ var publicModule;
         privateClassWithPrivateModuleParameterTypes.prototype.myPublicMethod1 = function () {
             return new privateModule.publicClass();
         };
+        __names(privateClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
         return privateClassWithPrivateModuleParameterTypes;
     }());
     function privateFunctionWithPrivateModuleParameterTypes() {
@@ -1650,6 +1676,7 @@ var privateModule;
         publicClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new privateClass();
         };
+        __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return publicClassWithWithPrivateParmeterTypes;
     }());
     privateModule.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -1680,6 +1707,7 @@ var privateModule;
         publicClassWithWithPublicParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new publicClass();
         };
+        __names(publicClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return publicClassWithWithPublicParmeterTypes;
     }());
     privateModule.publicClassWithWithPublicParmeterTypes = publicClassWithWithPublicParmeterTypes;
@@ -1710,6 +1738,7 @@ var privateModule;
         privateClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new privateClass();
         };
+        __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return privateClassWithWithPrivateParmeterTypes;
     }());
     var privateClassWithWithPublicParmeterTypes = (function () {
@@ -1739,6 +1768,7 @@ var privateModule;
         privateClassWithWithPublicParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new publicClass();
         };
+        __names(privateClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return privateClassWithWithPublicParmeterTypes;
     }());
     function publicFunctionWithPrivateParmeterTypes() {
@@ -1784,6 +1814,7 @@ var privateModule;
         publicClassWithPrivateModuleParameterTypes.prototype.myPublicMethod1 = function () {
             return new privateModule.publicClass();
         };
+        __names(publicClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
         return publicClassWithPrivateModuleParameterTypes;
     }());
     privateModule.publicClassWithPrivateModuleParameterTypes = publicClassWithPrivateModuleParameterTypes;
@@ -1810,6 +1841,7 @@ var privateModule;
         privateClassWithPrivateModuleParameterTypes.prototype.myPublicMethod1 = function () {
             return new privateModule.publicClass();
         };
+        __names(privateClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
         return privateClassWithPrivateModuleParameterTypes;
     }());
     function privateFunctionWithPrivateModuleParameterTypes() {
@@ -1820,6 +1852,20 @@ var privateModule;
     }
 })(privateModule || (privateModule = {}));
 //// [privacyFunctionReturnTypeDeclFile_GlobalFile.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var publicClassInGlobal = (function () {
     function publicClassInGlobal() {
     }
@@ -1852,6 +1898,7 @@ var publicClassWithWithPublicParmeterTypesInGlobal = (function () {
     publicClassWithWithPublicParmeterTypesInGlobal.prototype.myPrivateMethod1 = function () {
         return new publicClassInGlobal();
     };
+    __names(publicClassWithWithPublicParmeterTypesInGlobal.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
     return publicClassWithWithPublicParmeterTypesInGlobal;
 }());
 function publicFunctionWithPublicParmeterTypesInGlobal() {
@@ -1913,6 +1960,7 @@ var publicModuleInGlobal;
             publicClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod1 = function () {
                 return new privateClass();
             };
+            __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
             return publicClassWithWithPrivateParmeterTypes;
         }());
         privateModule.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -1943,6 +1991,7 @@ var publicModuleInGlobal;
             publicClassWithWithPublicParmeterTypes.prototype.myPrivateMethod1 = function () {
                 return new publicClass();
             };
+            __names(publicClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
             return publicClassWithWithPublicParmeterTypes;
         }());
         privateModule.publicClassWithWithPublicParmeterTypes = publicClassWithWithPublicParmeterTypes;
@@ -1973,6 +2022,7 @@ var publicModuleInGlobal;
             privateClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod1 = function () {
                 return new privateClass();
             };
+            __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
             return privateClassWithWithPrivateParmeterTypes;
         }());
         var privateClassWithWithPublicParmeterTypes = (function () {
@@ -2002,6 +2052,7 @@ var publicModuleInGlobal;
             privateClassWithWithPublicParmeterTypes.prototype.myPrivateMethod1 = function () {
                 return new publicClass();
             };
+            __names(privateClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
             return privateClassWithWithPublicParmeterTypes;
         }());
         function publicFunctionWithPrivateParmeterTypes() {
@@ -2047,6 +2098,7 @@ var publicModuleInGlobal;
             publicClassWithPrivateModuleParameterTypes.prototype.myPublicMethod1 = function () {
                 return new privateModule.publicClass();
             };
+            __names(publicClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
             return publicClassWithPrivateModuleParameterTypes;
         }());
         privateModule.publicClassWithPrivateModuleParameterTypes = publicClassWithPrivateModuleParameterTypes;
@@ -2073,6 +2125,7 @@ var publicModuleInGlobal;
             privateClassWithPrivateModuleParameterTypes.prototype.myPublicMethod1 = function () {
                 return new privateModule.publicClass();
             };
+            __names(privateClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
             return privateClassWithPrivateModuleParameterTypes;
         }());
         function privateFunctionWithPrivateModuleParameterTypes() {
@@ -2109,6 +2162,7 @@ var publicModuleInGlobal;
         publicClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new privateClass();
         };
+        __names(publicClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return publicClassWithWithPrivateParmeterTypes;
     }());
     publicModuleInGlobal.publicClassWithWithPrivateParmeterTypes = publicClassWithWithPrivateParmeterTypes;
@@ -2139,6 +2193,7 @@ var publicModuleInGlobal;
         publicClassWithWithPublicParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new publicClass();
         };
+        __names(publicClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return publicClassWithWithPublicParmeterTypes;
     }());
     publicModuleInGlobal.publicClassWithWithPublicParmeterTypes = publicClassWithWithPublicParmeterTypes;
@@ -2169,6 +2224,7 @@ var publicModuleInGlobal;
         privateClassWithWithPrivateParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new privateClass();
         };
+        __names(privateClassWithWithPrivateParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return privateClassWithWithPrivateParmeterTypes;
     }());
     var privateClassWithWithPublicParmeterTypes = (function () {
@@ -2198,6 +2254,7 @@ var publicModuleInGlobal;
         privateClassWithWithPublicParmeterTypes.prototype.myPrivateMethod1 = function () {
             return new publicClass();
         };
+        __names(privateClassWithWithPublicParmeterTypes.prototype, ["myPublicMethod", "myPrivateMethod", "myPublicMethod1", "myPrivateMethod1"]);
         return privateClassWithWithPublicParmeterTypes;
     }());
     function publicFunctionWithPrivateParmeterTypes() {
@@ -2243,6 +2300,7 @@ var publicModuleInGlobal;
         publicClassWithPrivateModuleParameterTypes.prototype.myPublicMethod1 = function () {
             return new privateModule.publicClass();
         };
+        __names(publicClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
         return publicClassWithPrivateModuleParameterTypes;
     }());
     publicModuleInGlobal.publicClassWithPrivateModuleParameterTypes = publicClassWithPrivateModuleParameterTypes;
@@ -2269,6 +2327,7 @@ var publicModuleInGlobal;
         privateClassWithPrivateModuleParameterTypes.prototype.myPublicMethod1 = function () {
             return new privateModule.publicClass();
         };
+        __names(privateClassWithPrivateModuleParameterTypes.prototype, ["myPublicMethod", "myPublicMethod1"]);
         return privateClassWithPrivateModuleParameterTypes;
     }());
     function privateFunctionWithPrivateModuleParameterTypes() {
diff --git a/tests/baselines/reference/privacyGetter.js b/tests/baselines/reference/privacyGetter.js
index 255d21edcdb83..0ea2cb2aea8e3 100644
--- a/tests/baselines/reference/privacyGetter.js
+++ b/tests/baselines/reference/privacyGetter.js
@@ -208,6 +208,20 @@ class C8_private {
 }
 
 //// [privacyGetter.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     Object.defineProperty(exports, "__esModule", { value: true });
@@ -218,6 +232,7 @@ define(["require", "exports"], function (require, exports) {
             }
             C1_public.prototype.f1 = function () {
             };
+            __names(C1_public.prototype, ["f1"]);
             return C1_public;
         }());
         m1.C1_public = C1_public;
@@ -317,6 +332,7 @@ define(["require", "exports"], function (require, exports) {
             }
             m2_C1_public.prototype.f1 = function () {
             };
+            __names(m2_C1_public.prototype, ["f1"]);
             return m2_C1_public;
         }());
         m2.m2_C1_public = m2_C1_public;
@@ -414,6 +430,7 @@ define(["require", "exports"], function (require, exports) {
         }
         C5_private.prototype.f = function () {
         };
+        __names(C5_private.prototype, ["f"]);
         return C5_private;
     }());
     var C6_public = (function () {
diff --git a/tests/baselines/reference/privacyGloClass.js b/tests/baselines/reference/privacyGloClass.js
index 85acba1148b3a..1d78afc065328 100644
--- a/tests/baselines/reference/privacyGloClass.js
+++ b/tests/baselines/reference/privacyGloClass.js
@@ -61,6 +61,20 @@ class glo_C11_public extends glo_c_public implements glo_i_public {
 
 
 //// [privacyGloClass.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -78,6 +92,7 @@ var m1;
         }
         m1_c_public.prototype.f1 = function () {
         };
+        __names(m1_c_public.prototype, ["f1"]);
         return m1_c_public;
     }());
     m1.m1_c_public = m1_c_public;
@@ -174,6 +189,7 @@ var glo_c_public = (function () {
     }
     glo_c_public.prototype.f1 = function () {
     };
+    __names(glo_c_public.prototype, ["f1"]);
     return glo_c_public;
 }());
 var glo_C3_public = (function (_super) {
diff --git a/tests/baselines/reference/privacyGloFunc.js b/tests/baselines/reference/privacyGloFunc.js
index 6bc177946809c..85eef926ac3b2 100644
--- a/tests/baselines/reference/privacyGloFunc.js
+++ b/tests/baselines/reference/privacyGloFunc.js
@@ -531,6 +531,20 @@ export function f12_public(): C5_private { //error
 
 
 //// [privacyGloFunc.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -541,6 +555,7 @@ define(["require", "exports"], function (require, exports) {
             }
             C1_public.prototype.f1 = function () {
             };
+            __names(C1_public.prototype, ["f1"]);
             return C1_public;
         }());
         m1.C1_public = C1_public;
@@ -584,6 +599,7 @@ define(["require", "exports"], function (require, exports) {
             C3_public.prototype.f12_public = function () {
                 return new C2_private(); //error
             };
+            __names(C3_public.prototype, ["f1_private", "f2_public", "f3_private", "f4_public", "f5_private", "f6_public", "f7_private", "f8_public", "f9_private", "f10_public", "f11_private", "f12_public"]);
             return C3_public;
         }());
         m1.C3_public = C3_public;
@@ -622,6 +638,7 @@ define(["require", "exports"], function (require, exports) {
             C4_private.prototype.f12_public = function () {
                 return new C2_private();
             };
+            __names(C4_private.prototype, ["f1_private", "f2_public", "f3_private", "f4_public", "f5_private", "f6_public", "f7_private", "f8_public", "f9_private", "f10_public", "f11_private", "f12_public"]);
             return C4_private;
         }());
         var C5_public = (function () {
@@ -692,6 +709,7 @@ define(["require", "exports"], function (require, exports) {
             }
             m2_C1_public.prototype.f = function () {
             };
+            __names(m2_C1_public.prototype, ["f"]);
             return m2_C1_public;
         }());
         m2.m2_C1_public = m2_C1_public;
@@ -735,6 +753,7 @@ define(["require", "exports"], function (require, exports) {
             m2_C3_public.prototype.f12_public = function () {
                 return new m2_C2_private();
             };
+            __names(m2_C3_public.prototype, ["f1_private", "f2_public", "f3_private", "f4_public", "f5_private", "f6_public", "f7_private", "f8_public", "f9_private", "f10_public", "f11_private", "f12_public"]);
             return m2_C3_public;
         }());
         m2.m2_C3_public = m2_C3_public;
@@ -773,6 +792,7 @@ define(["require", "exports"], function (require, exports) {
             m2_C4_private.prototype.f12_public = function () {
                 return new m2_C2_private();
             };
+            __names(m2_C4_private.prototype, ["f1_private", "f2_public", "f3_private", "f4_public", "f5_private", "f6_public", "f7_private", "f8_public", "f9_private", "f10_public", "f11_private", "f12_public"]);
             return m2_C4_private;
         }());
         var m2_C5_public = (function () {
@@ -841,6 +861,7 @@ define(["require", "exports"], function (require, exports) {
         }
         C5_private.prototype.f = function () {
         };
+        __names(C5_private.prototype, ["f"]);
         return C5_private;
     }());
     var C6_public = (function () {
@@ -884,6 +905,7 @@ define(["require", "exports"], function (require, exports) {
         C7_public.prototype.f12_public = function () {
             return new C5_private(); //error
         };
+        __names(C7_public.prototype, ["f1_private", "f2_public", "f3_private", "f4_public", "f5_private", "f6_public", "f7_private", "f8_public", "f9_private", "f10_public", "f11_private", "f12_public"]);
         return C7_public;
     }());
     exports.C7_public = C7_public;
@@ -922,6 +944,7 @@ define(["require", "exports"], function (require, exports) {
         C8_private.prototype.f12_public = function () {
             return new C5_private();
         };
+        __names(C8_private.prototype, ["f1_private", "f2_public", "f3_private", "f4_public", "f5_private", "f6_public", "f7_private", "f8_public", "f9_private", "f10_public", "f11_private", "f12_public"]);
         return C8_private;
     }());
     var C9_public = (function () {
diff --git a/tests/baselines/reference/privacyGloGetter.js b/tests/baselines/reference/privacyGloGetter.js
index 2ae94a0d321f9..da13e682ed519 100644
--- a/tests/baselines/reference/privacyGloGetter.js
+++ b/tests/baselines/reference/privacyGloGetter.js
@@ -89,6 +89,20 @@ class C7_public {
 }
 
 //// [privacyGloGetter.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var m1;
 (function (m1) {
     var C1_public = (function () {
@@ -96,6 +110,7 @@ var m1;
         }
         C1_public.prototype.f1 = function () {
         };
+        __names(C1_public.prototype, ["f1"]);
         return C1_public;
     }());
     m1.C1_public = C1_public;
diff --git a/tests/baselines/reference/privacyGloInterface.js b/tests/baselines/reference/privacyGloInterface.js
index 671977678a39a..214e1447b4be7 100644
--- a/tests/baselines/reference/privacyGloInterface.js
+++ b/tests/baselines/reference/privacyGloInterface.js
@@ -120,6 +120,20 @@ interface glo_C3_public extends glo_i_public {
 
 
 //// [privacyGloInterface.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var m1;
 (function (m1) {
     var C1_public = (function () {
@@ -127,6 +141,7 @@ var m1;
         }
         C1_public.prototype.f1 = function () {
         };
+        __names(C1_public.prototype, ["f1"]);
         return C1_public;
     }());
     m1.C1_public = C1_public;
@@ -141,5 +156,6 @@ var C5_public = (function () {
     }
     C5_public.prototype.f1 = function () {
     };
+    __names(C5_public.prototype, ["f1"]);
     return C5_public;
 }());
diff --git a/tests/baselines/reference/privacyGloVar.js b/tests/baselines/reference/privacyGloVar.js
index 678d6cfdc99ed..56cb7bf091993 100644
--- a/tests/baselines/reference/privacyGloVar.js
+++ b/tests/baselines/reference/privacyGloVar.js
@@ -81,6 +81,20 @@ var glo_v22_public: glo_C1_public = new glo_C1_public();
 
 
 //// [privacyGloVar.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var m1;
 (function (m1) {
     var C1_public = (function () {
@@ -88,6 +102,7 @@ var m1;
         }
         C1_public.prototype.f1 = function () {
         };
+        __names(C1_public.prototype, ["f1"]);
         return C1_public;
     }());
     m1.C1_public = C1_public;
@@ -139,6 +154,7 @@ var glo_C1_public = (function () {
     }
     glo_C1_public.prototype.f1 = function () {
     };
+    __names(glo_C1_public.prototype, ["f1"]);
     return glo_C1_public;
 }());
 var glo_C3_public = (function () {
diff --git a/tests/baselines/reference/privacyInterface.js b/tests/baselines/reference/privacyInterface.js
index 360f1683b6a27..0f5477644f5da 100644
--- a/tests/baselines/reference/privacyInterface.js
+++ b/tests/baselines/reference/privacyInterface.js
@@ -266,6 +266,20 @@ export interface glo_C6_public extends  glo_i_private, glo_i_public {
 
 //// [privacyInterface.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var m1;
 (function (m1) {
@@ -274,6 +288,7 @@ var m1;
         }
         C1_public.prototype.f1 = function () {
         };
+        __names(C1_public.prototype, ["f1"]);
         return C1_public;
     }());
     m1.C1_public = C1_public;
@@ -290,6 +305,7 @@ var m2;
         }
         C1_public.prototype.f1 = function () {
         };
+        __names(C1_public.prototype, ["f1"]);
         return C1_public;
     }());
     m2.C1_public = C1_public;
@@ -304,6 +320,7 @@ var C5_public = (function () {
     }
     C5_public.prototype.f1 = function () {
     };
+    __names(C5_public.prototype, ["f1"]);
     return C5_public;
 }());
 exports.C5_public = C5_public;
diff --git a/tests/baselines/reference/privacyTypeParameterOfFunction.js b/tests/baselines/reference/privacyTypeParameterOfFunction.js
index 98e0a57d59ea3..0cf0c1308695d 100644
--- a/tests/baselines/reference/privacyTypeParameterOfFunction.js
+++ b/tests/baselines/reference/privacyTypeParameterOfFunction.js
@@ -134,6 +134,20 @@ function privateFunctionWithPublicTypeParametersWithoutExtends<T>() {
 
 //// [privacyTypeParameterOfFunction.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var privateClass = (function () {
     function privateClass() {
@@ -159,6 +173,7 @@ var publicClassWithWithPrivateTypeParameters = (function () {
     };
     publicClassWithWithPrivateTypeParameters.prototype.myPrivateMethod = function () {
     };
+    __names(publicClassWithWithPrivateTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return publicClassWithWithPrivateTypeParameters;
 }());
 exports.publicClassWithWithPrivateTypeParameters = publicClassWithWithPrivateTypeParameters;
@@ -173,6 +188,7 @@ var publicClassWithWithPublicTypeParameters = (function () {
     };
     publicClassWithWithPublicTypeParameters.prototype.myPrivateMethod = function () {
     };
+    __names(publicClassWithWithPublicTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return publicClassWithWithPublicTypeParameters;
 }());
 exports.publicClassWithWithPublicTypeParameters = publicClassWithWithPublicTypeParameters;
@@ -187,6 +203,7 @@ var privateClassWithWithPrivateTypeParameters = (function () {
     };
     privateClassWithWithPrivateTypeParameters.prototype.myPrivateMethod = function () {
     };
+    __names(privateClassWithWithPrivateTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return privateClassWithWithPrivateTypeParameters;
 }());
 var privateClassWithWithPublicTypeParameters = (function () {
@@ -200,6 +217,7 @@ var privateClassWithWithPublicTypeParameters = (function () {
     };
     privateClassWithWithPublicTypeParameters.prototype.myPrivateMethod = function () {
     };
+    __names(privateClassWithWithPublicTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return privateClassWithWithPublicTypeParameters;
 }());
 // TypeParameter_0_of_exported_function_has_or_is_using_private_type_1
@@ -224,6 +242,7 @@ var publicClassWithWithPublicTypeParametersWithoutExtends = (function () {
     };
     publicClassWithWithPublicTypeParametersWithoutExtends.prototype.myPrivateMethod = function () {
     };
+    __names(publicClassWithWithPublicTypeParametersWithoutExtends.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return publicClassWithWithPublicTypeParametersWithoutExtends;
 }());
 exports.publicClassWithWithPublicTypeParametersWithoutExtends = publicClassWithWithPublicTypeParametersWithoutExtends;
@@ -238,6 +257,7 @@ var privateClassWithWithPublicTypeParametersWithoutExtends = (function () {
     };
     privateClassWithWithPublicTypeParametersWithoutExtends.prototype.myPrivateMethod = function () {
     };
+    __names(privateClassWithWithPublicTypeParametersWithoutExtends.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return privateClassWithWithPublicTypeParametersWithoutExtends;
 }());
 function publicFunctionWithPublicTypeParametersWithoutExtends() {
diff --git a/tests/baselines/reference/privacyTypeParameterOfFunctionDeclFile.js b/tests/baselines/reference/privacyTypeParameterOfFunctionDeclFile.js
index f5fdf6dfff868..7763611c04fa6 100644
--- a/tests/baselines/reference/privacyTypeParameterOfFunctionDeclFile.js
+++ b/tests/baselines/reference/privacyTypeParameterOfFunctionDeclFile.js
@@ -440,6 +440,20 @@ module privateModule {
 
 //// [privacyTypeParameterOfFunctionDeclFile.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var privateClass = (function () {
     function privateClass() {
@@ -463,6 +477,7 @@ var publicClassWithWithPrivateTypeParameters = (function () {
     };
     publicClassWithWithPrivateTypeParameters.prototype.myPrivateMethod = function () {
     };
+    __names(publicClassWithWithPrivateTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return publicClassWithWithPrivateTypeParameters;
 }());
 exports.publicClassWithWithPrivateTypeParameters = publicClassWithWithPrivateTypeParameters;
@@ -477,6 +492,7 @@ var publicClassWithWithPublicTypeParameters = (function () {
     };
     publicClassWithWithPublicTypeParameters.prototype.myPrivateMethod = function () {
     };
+    __names(publicClassWithWithPublicTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return publicClassWithWithPublicTypeParameters;
 }());
 exports.publicClassWithWithPublicTypeParameters = publicClassWithWithPublicTypeParameters;
@@ -491,6 +507,7 @@ var privateClassWithWithPrivateTypeParameters = (function () {
     };
     privateClassWithWithPrivateTypeParameters.prototype.myPrivateMethod = function () {
     };
+    __names(privateClassWithWithPrivateTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return privateClassWithWithPrivateTypeParameters;
 }());
 var privateClassWithWithPublicTypeParameters = (function () {
@@ -504,6 +521,7 @@ var privateClassWithWithPublicTypeParameters = (function () {
     };
     privateClassWithWithPublicTypeParameters.prototype.myPrivateMethod = function () {
     };
+    __names(privateClassWithWithPublicTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return privateClassWithWithPublicTypeParameters;
 }());
 function publicFunctionWithPrivateTypeParameters() {
@@ -527,6 +545,7 @@ var publicClassWithWithPublicTypeParametersWithoutExtends = (function () {
     };
     publicClassWithWithPublicTypeParametersWithoutExtends.prototype.myPrivateMethod = function () {
     };
+    __names(publicClassWithWithPublicTypeParametersWithoutExtends.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return publicClassWithWithPublicTypeParametersWithoutExtends;
 }());
 exports.publicClassWithWithPublicTypeParametersWithoutExtends = publicClassWithWithPublicTypeParametersWithoutExtends;
@@ -541,6 +560,7 @@ var privateClassWithWithPublicTypeParametersWithoutExtends = (function () {
     };
     privateClassWithWithPublicTypeParametersWithoutExtends.prototype.myPrivateMethod = function () {
     };
+    __names(privateClassWithWithPublicTypeParametersWithoutExtends.prototype, ["myPublicMethod", "myPrivateMethod"]);
     return privateClassWithWithPublicTypeParametersWithoutExtends;
 }());
 function publicFunctionWithPublicTypeParametersWithoutExtends() {
@@ -555,6 +575,7 @@ var publicClassWithWithPrivateModuleTypeParameters = (function () {
     };
     publicClassWithWithPrivateModuleTypeParameters.prototype.myPublicMethod = function () {
     };
+    __names(publicClassWithWithPrivateModuleTypeParameters.prototype, ["myPublicMethod"]);
     return publicClassWithWithPrivateModuleTypeParameters;
 }());
 exports.publicClassWithWithPrivateModuleTypeParameters = publicClassWithWithPrivateModuleTypeParameters;
@@ -568,6 +589,7 @@ var privateClassWithWithPrivateModuleTypeParameters = (function () {
     };
     privateClassWithWithPrivateModuleTypeParameters.prototype.myPublicMethod = function () {
     };
+    __names(privateClassWithWithPrivateModuleTypeParameters.prototype, ["myPublicMethod"]);
     return privateClassWithWithPrivateModuleTypeParameters;
 }());
 function privateFunctionWithPrivateMopduleTypeParameters() {
@@ -596,6 +618,7 @@ var publicModule;
         };
         publicClassWithWithPrivateTypeParameters.prototype.myPrivateMethod = function () {
         };
+        __names(publicClassWithWithPrivateTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPrivateTypeParameters;
     }());
     publicModule.publicClassWithWithPrivateTypeParameters = publicClassWithWithPrivateTypeParameters;
@@ -610,6 +633,7 @@ var publicModule;
         };
         publicClassWithWithPublicTypeParameters.prototype.myPrivateMethod = function () {
         };
+        __names(publicClassWithWithPublicTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPublicTypeParameters;
     }());
     publicModule.publicClassWithWithPublicTypeParameters = publicClassWithWithPublicTypeParameters;
@@ -624,6 +648,7 @@ var publicModule;
         };
         privateClassWithWithPrivateTypeParameters.prototype.myPrivateMethod = function () {
         };
+        __names(privateClassWithWithPrivateTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPrivateTypeParameters;
     }());
     var privateClassWithWithPublicTypeParameters = (function () {
@@ -637,6 +662,7 @@ var publicModule;
         };
         privateClassWithWithPublicTypeParameters.prototype.myPrivateMethod = function () {
         };
+        __names(privateClassWithWithPublicTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPublicTypeParameters;
     }());
     function publicFunctionWithPrivateTypeParameters() {
@@ -660,6 +686,7 @@ var publicModule;
         };
         publicClassWithWithPublicTypeParametersWithoutExtends.prototype.myPrivateMethod = function () {
         };
+        __names(publicClassWithWithPublicTypeParametersWithoutExtends.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPublicTypeParametersWithoutExtends;
     }());
     publicModule.publicClassWithWithPublicTypeParametersWithoutExtends = publicClassWithWithPublicTypeParametersWithoutExtends;
@@ -674,6 +701,7 @@ var publicModule;
         };
         privateClassWithWithPublicTypeParametersWithoutExtends.prototype.myPrivateMethod = function () {
         };
+        __names(privateClassWithWithPublicTypeParametersWithoutExtends.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPublicTypeParametersWithoutExtends;
     }());
     function publicFunctionWithPublicTypeParametersWithoutExtends() {
@@ -688,6 +716,7 @@ var publicModule;
         };
         publicClassWithWithPrivateModuleTypeParameters.prototype.myPublicMethod = function () {
         };
+        __names(publicClassWithWithPrivateModuleTypeParameters.prototype, ["myPublicMethod"]);
         return publicClassWithWithPrivateModuleTypeParameters;
     }());
     publicModule.publicClassWithWithPrivateModuleTypeParameters = publicClassWithWithPrivateModuleTypeParameters;
@@ -701,6 +730,7 @@ var publicModule;
         };
         privateClassWithWithPrivateModuleTypeParameters.prototype.myPublicMethod = function () {
         };
+        __names(privateClassWithWithPrivateModuleTypeParameters.prototype, ["myPublicMethod"]);
         return privateClassWithWithPrivateModuleTypeParameters;
     }());
     function privateFunctionWithPrivateMopduleTypeParameters() {
@@ -730,6 +760,7 @@ var privateModule;
         };
         publicClassWithWithPrivateTypeParameters.prototype.myPrivateMethod = function () {
         };
+        __names(publicClassWithWithPrivateTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPrivateTypeParameters;
     }());
     privateModule.publicClassWithWithPrivateTypeParameters = publicClassWithWithPrivateTypeParameters;
@@ -744,6 +775,7 @@ var privateModule;
         };
         publicClassWithWithPublicTypeParameters.prototype.myPrivateMethod = function () {
         };
+        __names(publicClassWithWithPublicTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPublicTypeParameters;
     }());
     privateModule.publicClassWithWithPublicTypeParameters = publicClassWithWithPublicTypeParameters;
@@ -758,6 +790,7 @@ var privateModule;
         };
         privateClassWithWithPrivateTypeParameters.prototype.myPrivateMethod = function () {
         };
+        __names(privateClassWithWithPrivateTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPrivateTypeParameters;
     }());
     var privateClassWithWithPublicTypeParameters = (function () {
@@ -771,6 +804,7 @@ var privateModule;
         };
         privateClassWithWithPublicTypeParameters.prototype.myPrivateMethod = function () {
         };
+        __names(privateClassWithWithPublicTypeParameters.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPublicTypeParameters;
     }());
     function publicFunctionWithPrivateTypeParameters() {
@@ -794,6 +828,7 @@ var privateModule;
         };
         publicClassWithWithPublicTypeParametersWithoutExtends.prototype.myPrivateMethod = function () {
         };
+        __names(publicClassWithWithPublicTypeParametersWithoutExtends.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return publicClassWithWithPublicTypeParametersWithoutExtends;
     }());
     privateModule.publicClassWithWithPublicTypeParametersWithoutExtends = publicClassWithWithPublicTypeParametersWithoutExtends;
@@ -808,6 +843,7 @@ var privateModule;
         };
         privateClassWithWithPublicTypeParametersWithoutExtends.prototype.myPrivateMethod = function () {
         };
+        __names(privateClassWithWithPublicTypeParametersWithoutExtends.prototype, ["myPublicMethod", "myPrivateMethod"]);
         return privateClassWithWithPublicTypeParametersWithoutExtends;
     }());
     function publicFunctionWithPublicTypeParametersWithoutExtends() {
diff --git a/tests/baselines/reference/privacyTypeParametersOfClass.js b/tests/baselines/reference/privacyTypeParametersOfClass.js
index ba1a9bd10e07a..d0563c18bc356 100644
--- a/tests/baselines/reference/privacyTypeParametersOfClass.js
+++ b/tests/baselines/reference/privacyTypeParametersOfClass.js
@@ -45,6 +45,20 @@ class privateClassWithPublicTypeParametersWithoutExtends<T> {
 
 //// [privacyTypeParametersOfClass.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var privateClass = (function () {
     function privateClass() {
@@ -64,6 +78,7 @@ var publicClassWithPrivateTypeParameters = (function () {
     publicClassWithPrivateTypeParameters.prototype.myMethod = function (val) {
         return val;
     };
+    __names(publicClassWithPrivateTypeParameters.prototype, ["myMethod"]);
     return publicClassWithPrivateTypeParameters;
 }());
 exports.publicClassWithPrivateTypeParameters = publicClassWithPrivateTypeParameters;
@@ -73,6 +88,7 @@ var publicClassWithPublicTypeParameters = (function () {
     publicClassWithPublicTypeParameters.prototype.myMethod = function (val) {
         return val;
     };
+    __names(publicClassWithPublicTypeParameters.prototype, ["myMethod"]);
     return publicClassWithPublicTypeParameters;
 }());
 exports.publicClassWithPublicTypeParameters = publicClassWithPublicTypeParameters;
@@ -82,6 +98,7 @@ var privateClassWithPrivateTypeParameters = (function () {
     privateClassWithPrivateTypeParameters.prototype.myMethod = function (val) {
         return val;
     };
+    __names(privateClassWithPrivateTypeParameters.prototype, ["myMethod"]);
     return privateClassWithPrivateTypeParameters;
 }());
 var privateClassWithPublicTypeParameters = (function () {
@@ -90,6 +107,7 @@ var privateClassWithPublicTypeParameters = (function () {
     privateClassWithPublicTypeParameters.prototype.myMethod = function (val) {
         return val;
     };
+    __names(privateClassWithPublicTypeParameters.prototype, ["myMethod"]);
     return privateClassWithPublicTypeParameters;
 }());
 var publicClassWithPublicTypeParametersWithoutExtends = (function () {
@@ -98,6 +116,7 @@ var publicClassWithPublicTypeParametersWithoutExtends = (function () {
     publicClassWithPublicTypeParametersWithoutExtends.prototype.myMethod = function (val) {
         return val;
     };
+    __names(publicClassWithPublicTypeParametersWithoutExtends.prototype, ["myMethod"]);
     return publicClassWithPublicTypeParametersWithoutExtends;
 }());
 exports.publicClassWithPublicTypeParametersWithoutExtends = publicClassWithPublicTypeParametersWithoutExtends;
@@ -107,5 +126,6 @@ var privateClassWithPublicTypeParametersWithoutExtends = (function () {
     privateClassWithPublicTypeParametersWithoutExtends.prototype.myMethod = function (val) {
         return val;
     };
+    __names(privateClassWithPublicTypeParametersWithoutExtends.prototype, ["myMethod"]);
     return privateClassWithPublicTypeParametersWithoutExtends;
 }());
diff --git a/tests/baselines/reference/privacyTypeParametersOfClassDeclFile.js b/tests/baselines/reference/privacyTypeParametersOfClassDeclFile.js
index 8e21589de4229..cd19ff1a9b371 100644
--- a/tests/baselines/reference/privacyTypeParametersOfClassDeclFile.js
+++ b/tests/baselines/reference/privacyTypeParametersOfClassDeclFile.js
@@ -156,6 +156,20 @@ module privateModule {
 
 //// [privacyTypeParametersOfClassDeclFile.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var privateClass = (function () {
     function privateClass() {
@@ -174,6 +188,7 @@ var publicClassWithPrivateTypeParameters = (function () {
     publicClassWithPrivateTypeParameters.prototype.myMethod = function (val) {
         return val;
     };
+    __names(publicClassWithPrivateTypeParameters.prototype, ["myMethod"]);
     return publicClassWithPrivateTypeParameters;
 }());
 exports.publicClassWithPrivateTypeParameters = publicClassWithPrivateTypeParameters;
@@ -183,6 +198,7 @@ var publicClassWithPublicTypeParameters = (function () {
     publicClassWithPublicTypeParameters.prototype.myMethod = function (val) {
         return val;
     };
+    __names(publicClassWithPublicTypeParameters.prototype, ["myMethod"]);
     return publicClassWithPublicTypeParameters;
 }());
 exports.publicClassWithPublicTypeParameters = publicClassWithPublicTypeParameters;
@@ -192,6 +208,7 @@ var privateClassWithPrivateTypeParameters = (function () {
     privateClassWithPrivateTypeParameters.prototype.myMethod = function (val) {
         return val;
     };
+    __names(privateClassWithPrivateTypeParameters.prototype, ["myMethod"]);
     return privateClassWithPrivateTypeParameters;
 }());
 var privateClassWithPublicTypeParameters = (function () {
@@ -200,6 +217,7 @@ var privateClassWithPublicTypeParameters = (function () {
     privateClassWithPublicTypeParameters.prototype.myMethod = function (val) {
         return val;
     };
+    __names(privateClassWithPublicTypeParameters.prototype, ["myMethod"]);
     return privateClassWithPublicTypeParameters;
 }());
 var publicClassWithPublicTypeParametersWithoutExtends = (function () {
@@ -208,6 +226,7 @@ var publicClassWithPublicTypeParametersWithoutExtends = (function () {
     publicClassWithPublicTypeParametersWithoutExtends.prototype.myMethod = function (val) {
         return val;
     };
+    __names(publicClassWithPublicTypeParametersWithoutExtends.prototype, ["myMethod"]);
     return publicClassWithPublicTypeParametersWithoutExtends;
 }());
 exports.publicClassWithPublicTypeParametersWithoutExtends = publicClassWithPublicTypeParametersWithoutExtends;
@@ -217,6 +236,7 @@ var privateClassWithPublicTypeParametersWithoutExtends = (function () {
     privateClassWithPublicTypeParametersWithoutExtends.prototype.myMethod = function (val) {
         return val;
     };
+    __names(privateClassWithPublicTypeParametersWithoutExtends.prototype, ["myMethod"]);
     return privateClassWithPublicTypeParametersWithoutExtends;
 }());
 var publicClassWithTypeParametersFromPrivateModule = (function () {
@@ -225,6 +245,7 @@ var publicClassWithTypeParametersFromPrivateModule = (function () {
     publicClassWithTypeParametersFromPrivateModule.prototype.myMethod = function (val) {
         return val;
     };
+    __names(publicClassWithTypeParametersFromPrivateModule.prototype, ["myMethod"]);
     return publicClassWithTypeParametersFromPrivateModule;
 }());
 exports.publicClassWithTypeParametersFromPrivateModule = publicClassWithTypeParametersFromPrivateModule;
@@ -234,6 +255,7 @@ var privateClassWithTypeParametersFromPrivateModule = (function () {
     privateClassWithTypeParametersFromPrivateModule.prototype.myMethod = function (val) {
         return val;
     };
+    __names(privateClassWithTypeParametersFromPrivateModule.prototype, ["myMethod"]);
     return privateClassWithTypeParametersFromPrivateModule;
 }());
 var publicModule;
@@ -255,6 +277,7 @@ var publicModule;
         publicClassWithPrivateTypeParameters.prototype.myMethod = function (val) {
             return val;
         };
+        __names(publicClassWithPrivateTypeParameters.prototype, ["myMethod"]);
         return publicClassWithPrivateTypeParameters;
     }());
     publicModule.publicClassWithPrivateTypeParameters = publicClassWithPrivateTypeParameters;
@@ -264,6 +287,7 @@ var publicModule;
         publicClassWithPublicTypeParameters.prototype.myMethod = function (val) {
             return val;
         };
+        __names(publicClassWithPublicTypeParameters.prototype, ["myMethod"]);
         return publicClassWithPublicTypeParameters;
     }());
     publicModule.publicClassWithPublicTypeParameters = publicClassWithPublicTypeParameters;
@@ -273,6 +297,7 @@ var publicModule;
         privateClassWithPrivateTypeParameters.prototype.myMethod = function (val) {
             return val;
         };
+        __names(privateClassWithPrivateTypeParameters.prototype, ["myMethod"]);
         return privateClassWithPrivateTypeParameters;
     }());
     var privateClassWithPublicTypeParameters = (function () {
@@ -281,6 +306,7 @@ var publicModule;
         privateClassWithPublicTypeParameters.prototype.myMethod = function (val) {
             return val;
         };
+        __names(privateClassWithPublicTypeParameters.prototype, ["myMethod"]);
         return privateClassWithPublicTypeParameters;
     }());
     var publicClassWithPublicTypeParametersWithoutExtends = (function () {
@@ -289,6 +315,7 @@ var publicModule;
         publicClassWithPublicTypeParametersWithoutExtends.prototype.myMethod = function (val) {
             return val;
         };
+        __names(publicClassWithPublicTypeParametersWithoutExtends.prototype, ["myMethod"]);
         return publicClassWithPublicTypeParametersWithoutExtends;
     }());
     publicModule.publicClassWithPublicTypeParametersWithoutExtends = publicClassWithPublicTypeParametersWithoutExtends;
@@ -298,6 +325,7 @@ var publicModule;
         privateClassWithPublicTypeParametersWithoutExtends.prototype.myMethod = function (val) {
             return val;
         };
+        __names(privateClassWithPublicTypeParametersWithoutExtends.prototype, ["myMethod"]);
         return privateClassWithPublicTypeParametersWithoutExtends;
     }());
     var publicClassWithTypeParametersFromPrivateModule = (function () {
@@ -306,6 +334,7 @@ var publicModule;
         publicClassWithTypeParametersFromPrivateModule.prototype.myMethod = function (val) {
             return val;
         };
+        __names(publicClassWithTypeParametersFromPrivateModule.prototype, ["myMethod"]);
         return publicClassWithTypeParametersFromPrivateModule;
     }());
     publicModule.publicClassWithTypeParametersFromPrivateModule = publicClassWithTypeParametersFromPrivateModule;
@@ -315,6 +344,7 @@ var publicModule;
         privateClassWithTypeParametersFromPrivateModule.prototype.myMethod = function (val) {
             return val;
         };
+        __names(privateClassWithTypeParametersFromPrivateModule.prototype, ["myMethod"]);
         return privateClassWithTypeParametersFromPrivateModule;
     }());
 })(publicModule = exports.publicModule || (exports.publicModule = {}));
@@ -337,6 +367,7 @@ var privateModule;
         publicClassWithPrivateTypeParameters.prototype.myMethod = function (val) {
             return val;
         };
+        __names(publicClassWithPrivateTypeParameters.prototype, ["myMethod"]);
         return publicClassWithPrivateTypeParameters;
     }());
     privateModule.publicClassWithPrivateTypeParameters = publicClassWithPrivateTypeParameters;
@@ -346,6 +377,7 @@ var privateModule;
         publicClassWithPublicTypeParameters.prototype.myMethod = function (val) {
             return val;
         };
+        __names(publicClassWithPublicTypeParameters.prototype, ["myMethod"]);
         return publicClassWithPublicTypeParameters;
     }());
     privateModule.publicClassWithPublicTypeParameters = publicClassWithPublicTypeParameters;
@@ -355,6 +387,7 @@ var privateModule;
         privateClassWithPrivateTypeParameters.prototype.myMethod = function (val) {
             return val;
         };
+        __names(privateClassWithPrivateTypeParameters.prototype, ["myMethod"]);
         return privateClassWithPrivateTypeParameters;
     }());
     var privateClassWithPublicTypeParameters = (function () {
@@ -363,6 +396,7 @@ var privateModule;
         privateClassWithPublicTypeParameters.prototype.myMethod = function (val) {
             return val;
         };
+        __names(privateClassWithPublicTypeParameters.prototype, ["myMethod"]);
         return privateClassWithPublicTypeParameters;
     }());
     var publicClassWithPublicTypeParametersWithoutExtends = (function () {
@@ -371,6 +405,7 @@ var privateModule;
         publicClassWithPublicTypeParametersWithoutExtends.prototype.myMethod = function (val) {
             return val;
         };
+        __names(publicClassWithPublicTypeParametersWithoutExtends.prototype, ["myMethod"]);
         return publicClassWithPublicTypeParametersWithoutExtends;
     }());
     privateModule.publicClassWithPublicTypeParametersWithoutExtends = publicClassWithPublicTypeParametersWithoutExtends;
@@ -380,6 +415,7 @@ var privateModule;
         privateClassWithPublicTypeParametersWithoutExtends.prototype.myMethod = function (val) {
             return val;
         };
+        __names(privateClassWithPublicTypeParametersWithoutExtends.prototype, ["myMethod"]);
         return privateClassWithPublicTypeParametersWithoutExtends;
     }());
 })(privateModule || (privateModule = {}));
diff --git a/tests/baselines/reference/privacyVar.js b/tests/baselines/reference/privacyVar.js
index 4c97d273c3e98..08ff572d565df 100644
--- a/tests/baselines/reference/privacyVar.js
+++ b/tests/baselines/reference/privacyVar.js
@@ -176,6 +176,20 @@ export var glo_v24_public: glo_C2_private = new glo_C2_private(); // error
 
 //// [privacyVar.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var m1;
 (function (m1) {
@@ -184,6 +198,7 @@ var m1;
         }
         C1_public.prototype.f1 = function () {
         };
+        __names(C1_public.prototype, ["f1"]);
         return C1_public;
     }());
     m1.C1_public = C1_public;
@@ -237,6 +252,7 @@ var m2;
         }
         m2_C1_public.prototype.f1 = function () {
         };
+        __names(m2_C1_public.prototype, ["f1"]);
         return m2_C1_public;
     }());
     m2.m2_C1_public = m2_C1_public;
@@ -288,6 +304,7 @@ var glo_C1_public = (function () {
     }
     glo_C1_public.prototype.f1 = function () {
     };
+    __names(glo_C1_public.prototype, ["f1"]);
     return glo_C1_public;
 }());
 exports.glo_C1_public = glo_C1_public;
diff --git a/tests/baselines/reference/privateAccessInSubclass1.js b/tests/baselines/reference/privateAccessInSubclass1.js
index bab68b8d67ea3..674400cefc08f 100644
--- a/tests/baselines/reference/privateAccessInSubclass1.js
+++ b/tests/baselines/reference/privateAccessInSubclass1.js
@@ -20,6 +20,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
@@ -33,5 +47,6 @@ var D = (function (_super) {
     D.prototype.myMethod = function () {
         this.options;
     };
+    __names(D.prototype, ["myMethod"]);
     return D;
 }(Base));
diff --git a/tests/baselines/reference/privateClassPropertyAccessibleWithinClass.js b/tests/baselines/reference/privateClassPropertyAccessibleWithinClass.js
index 1a4ac4b167975..f0405b6e0fd89 100644
--- a/tests/baselines/reference/privateClassPropertyAccessibleWithinClass.js
+++ b/tests/baselines/reference/privateClassPropertyAccessibleWithinClass.js
@@ -33,6 +33,20 @@ class C2 {
 
 //// [privateClassPropertyAccessibleWithinClass.js]
 // no errors
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -51,6 +65,7 @@ var C = (function () {
     });
     C.foo = function () { return this.foo; };
     C.bar = function () { this.foo(); };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 // added level of function nesting
@@ -95,5 +110,6 @@ var C2 = (function () {
         var _this = this;
         (function () { return _this.foo(); });
     };
+    __names(C2.prototype, ["foo"]);
     return C2;
 }());
diff --git a/tests/baselines/reference/privateClassPropertyAccessibleWithinNestedClass.js b/tests/baselines/reference/privateClassPropertyAccessibleWithinNestedClass.js
index 3bb0a7da3ea37..ef7ca929f7b96 100644
--- a/tests/baselines/reference/privateClassPropertyAccessibleWithinNestedClass.js
+++ b/tests/baselines/reference/privateClassPropertyAccessibleWithinNestedClass.js
@@ -39,6 +39,20 @@ class C {
 
 //// [privateClassPropertyAccessibleWithinNestedClass.js]
 // no errors
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -77,8 +91,10 @@ var C = (function () {
                 var y3 = y.x;
                 var y4 = y.y;
             };
+            __names(C2.prototype, ["foo"]);
             return C2;
         }());
     };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/privateInstanceMemberAccessibility.js b/tests/baselines/reference/privateInstanceMemberAccessibility.js
index 40b8c886cc007..c596a965c98f6 100644
--- a/tests/baselines/reference/privateInstanceMemberAccessibility.js
+++ b/tests/baselines/reference/privateInstanceMemberAccessibility.js
@@ -24,6 +24,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
@@ -39,5 +53,6 @@ var Derived = (function (_super) {
     Derived.prototype.y = function () {
         return _super.prototype.foo; // error
     };
+    __names(Derived.prototype, ["y"]);
     return Derived;
 }(Base));
diff --git a/tests/baselines/reference/privateInstanceVisibility.js b/tests/baselines/reference/privateInstanceVisibility.js
index 86d9d42623697..f0d0b7781f426 100644
--- a/tests/baselines/reference/privateInstanceVisibility.js
+++ b/tests/baselines/reference/privateInstanceVisibility.js
@@ -39,6 +39,20 @@ class C {
 
 
 //// [privateInstanceVisibility.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Test;
 (function (Test) {
     var Example = (function () {
@@ -50,6 +64,7 @@ var Test;
                 var num = that.someNumber;
             }
         };
+        __names(Example.prototype, ["doSomething"]);
         return Example;
     }());
     Test.Example = Example;
@@ -61,5 +76,6 @@ var C = (function () {
     C.prototype.clone = function (other) {
         this.x = other.x;
     };
+    __names(C.prototype, ["getX", "clone"]);
     return C;
 }());
diff --git a/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js b/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js
index be01293a2cd45..052870699c016 100644
--- a/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js
+++ b/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js
@@ -22,6 +22,20 @@ let { priv: a, prot: b, privateMethod: f } = k; // error
 
 
 //// [privateProtectedMembersAreNotAccessibleDestructuring.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -40,6 +54,7 @@ var K = (function () {
         var _a = this, a = _a.priv, b = _a.prot; // ok
         var _b = new K(), priv = _b.priv, prot = _b.prot; // ok
     };
+    __names(K.prototype, ["privateMethod", "m"]);
     return K;
 }());
 var C = (function (_super) {
@@ -51,6 +66,7 @@ var C = (function (_super) {
         var a = this.priv; // error
         var b = this.prot; // ok
     };
+    __names(C.prototype, ["m2"]);
     return C;
 }(K));
 var k = new K();
diff --git a/tests/baselines/reference/privateVisibility.js b/tests/baselines/reference/privateVisibility.js
index 71227b9e09bb7..c6f6b183e1603 100644
--- a/tests/baselines/reference/privateVisibility.js
+++ b/tests/baselines/reference/privateVisibility.js
@@ -27,6 +27,20 @@ c.priv; // should not work
 
 
 //// [privateVisibility.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
         this.pubProp = 0;
@@ -34,6 +48,7 @@ var Foo = (function () {
     }
     Foo.prototype.pubMeth = function () { this.privMeth(); };
     Foo.prototype.privMeth = function () { };
+    __names(Foo.prototype, ["pubMeth", "privMeth"]);
     return Foo;
 }());
 var f = new Foo();
diff --git a/tests/baselines/reference/privateVisibles.js b/tests/baselines/reference/privateVisibles.js
index 4c3736449f10d..3eb2f2a940e08 100644
--- a/tests/baselines/reference/privateVisibles.js
+++ b/tests/baselines/reference/privateVisibles.js
@@ -10,11 +10,26 @@ class Foo {
 
 
 //// [privateVisibles.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
         this.pvar = 0;
         var n = this.pvar;
     }
     Foo.prototype.meth = function () { var q = this.pvar; };
+    __names(Foo.prototype, ["meth"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/li'b/class'A.js b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/li'b/class'A.js
index 5b3941738db13..c8c28c1b17ec9 100644
--- a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/li'b/class'A.js
+++ b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/li'b/class'A.js
@@ -1,9 +1,24 @@
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var test;
 (function (test) {
     var ClassA = (function () {
         function ClassA() {
         }
         ClassA.prototype.method = function () { };
+        __names(ClassA.prototype, ["method"]);
         return ClassA;
     }());
     test.ClassA = ClassA;
diff --git a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/li'b/class'A.js b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/li'b/class'A.js
index 5b3941738db13..c8c28c1b17ec9 100644
--- a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/li'b/class'A.js
+++ b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/li'b/class'A.js
@@ -1,9 +1,24 @@
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var test;
 (function (test) {
     var ClassA = (function () {
         function ClassA() {
         }
         ClassA.prototype.method = function () { };
+        __names(ClassA.prototype, ["method"]);
         return ClassA;
     }());
     test.ClassA = ClassA;
diff --git a/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/amd/fs.js b/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/amd/fs.js
index 66facecde7f6b..0e02687758eee 100644
--- a/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/amd/fs.js
+++ b/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/amd/fs.js
@@ -1,3 +1,17 @@
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -13,6 +27,7 @@ define(["require", "exports"], function (require, exports) {
         RM.prototype.run = function (configuration) {
             var absoluteWorkspacePath = configuration.workspace.toAbsolutePath(configuration.server);
         };
+        __names(RM.prototype, ["getName", "getDescription", "run"]);
         return RM;
     }());
     exports.RM = RM;
diff --git a/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/node/fs.js b/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/node/fs.js
index 221c232222727..0862e79ba46f9 100644
--- a/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/node/fs.js
+++ b/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/node/fs.js
@@ -1,4 +1,18 @@
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var RM = (function () {
     function RM() {
@@ -12,6 +26,7 @@ var RM = (function () {
     RM.prototype.run = function (configuration) {
         var absoluteWorkspacePath = configuration.workspace.toAbsolutePath(configuration.server);
     };
+    __names(RM.prototype, ["getName", "getDescription", "run"]);
     return RM;
 }());
 exports.RM = RM;
diff --git a/tests/baselines/reference/promiseChaining.js b/tests/baselines/reference/promiseChaining.js
index afa55acb89457..d6aad37fac584 100644
--- a/tests/baselines/reference/promiseChaining.js
+++ b/tests/baselines/reference/promiseChaining.js
@@ -12,6 +12,20 @@ class Chain<T> {
 
 
 //// [promiseChaining.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Chain = (function () {
     function Chain(value) {
         this.value = value;
@@ -22,5 +36,6 @@ var Chain = (function () {
         var z = this.then(function (x) { return result; }) /*S*/.then(function (x) { return "abc"; }) /*string*/.then(function (x) { return x.length; }) /*number*/; // No error
         return new Chain(result);
     };
+    __names(Chain.prototype, ["then"]);
     return Chain;
 }());
diff --git a/tests/baselines/reference/promiseChaining1.js b/tests/baselines/reference/promiseChaining1.js
index ad2ddcf694b02..6c180a9edb8d4 100644
--- a/tests/baselines/reference/promiseChaining1.js
+++ b/tests/baselines/reference/promiseChaining1.js
@@ -11,6 +11,20 @@ class Chain2<T extends { length: number }> {
 }
 
 //// [promiseChaining1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // same example but with constraints on each type parameter
 var Chain2 = (function () {
     function Chain2(value) {
@@ -22,5 +36,6 @@ var Chain2 = (function () {
         var z = this.then(function (x) { return result; }) /*S*/.then(function (x) { return "abc"; }) /*Function*/.then(function (x) { return x.length; }) /*number*/; // Should error on "abc" because it is not a Function
         return new Chain2(result);
     };
+    __names(Chain2.prototype, ["then"]);
     return Chain2;
 }());
diff --git a/tests/baselines/reference/promiseChaining2.js b/tests/baselines/reference/promiseChaining2.js
index d9ae5e8099c0f..8abf3ffb592df 100644
--- a/tests/baselines/reference/promiseChaining2.js
+++ b/tests/baselines/reference/promiseChaining2.js
@@ -11,6 +11,20 @@ class Chain2<T extends { length: number }> {
 }
 
 //// [promiseChaining2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // same example but with constraints on each type parameter
 var Chain2 = (function () {
     function Chain2(value) {
@@ -22,5 +36,6 @@ var Chain2 = (function () {
         var z = this.then(function (x) { return result; }).then(function (x) { return "abc"; }).then(function (x) { return x.length; });
         return new Chain2(result);
     };
+    __names(Chain2.prototype, ["then"]);
     return Chain2;
 }());
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints.js
index 63f91ae4f44c7..f2de7ef0bdc93 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints.js
@@ -37,6 +37,20 @@ var r4 = b.foo(new Date());
 //// [propertyAccessOnTypeParameterWithConstraints.js]
 // generic types should behave as if they have properties of their constraint type
 // no errors expected 
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -45,6 +59,7 @@ var C = (function () {
         var a = x['getDate'](); // number
         return a + x.getDate();
     };
+    __names(C.prototype, ["f"]);
     return C;
 }());
 var r = (new C()).f();
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js
index 08e1a9ceb1175..906f29b5ef916 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js
@@ -83,6 +83,20 @@ var r4 = b.foo(aB, aB); // no inferences for T so constraint isn't satisfied, er
 
 //// [propertyAccessOnTypeParameterWithConstraints2.js]
 // generic types should behave as if they have properties of their constraint type
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -97,6 +111,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { return ''; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -107,6 +122,7 @@ var B = (function (_super) {
     B.prototype.bar = function () {
         return '';
     };
+    __names(B.prototype, ["bar"]);
     return B;
 }(A));
 var C = (function () {
@@ -121,6 +137,7 @@ var C = (function () {
         var a = x['foo'](); // should be string
         return a + x.foo();
     };
+    __names(C.prototype, ["f", "g"]);
     return C;
 }());
 //class C<U extends T, T extends A> {
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js
index 0d94519795739..81adda9a81fce 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js
@@ -58,6 +58,20 @@ var r4 = b.foo(new B()); // valid call to an invalid function
 
 //// [propertyAccessOnTypeParameterWithConstraints3.js]
 // generic types should behave as if they have properties of their constraint type
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -72,6 +86,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { return ''; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -82,6 +97,7 @@ var B = (function (_super) {
     B.prototype.bar = function () {
         return '';
     };
+    __names(B.prototype, ["bar"]);
     return B;
 }(A));
 var C = (function () {
@@ -98,6 +114,7 @@ var C = (function () {
         var a = x['foo'](); // should be string
         return a + x.foo();
     };
+    __names(C.prototype, ["f", "g"]);
     return C;
 }());
 var r1a = (new C()).f();
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints4.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints4.js
index 3c5a87e4d0603..b3ee2cdb202c0 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints4.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints4.js
@@ -33,6 +33,20 @@ var b = {
 var r4 = b.foo(new Date());
 
 //// [propertyAccessOnTypeParameterWithConstraints4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -41,6 +55,7 @@ var C = (function () {
         var a = x['notHere'](); // should be string
         return a + x.notHere();
     };
+    __names(C.prototype, ["f"]);
     return C;
 }());
 var r = (new C()).f();
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js
index a7cc39b7f0542..ed11e8ad89cc8 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js
@@ -45,6 +45,20 @@ var b = {
 var r4 = b.foo(new B()); // error after constraints above made illegal, doesn't matter
 
 //// [propertyAccessOnTypeParameterWithConstraints5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -59,6 +73,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { return ''; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -69,6 +84,7 @@ var B = (function (_super) {
     B.prototype.bar = function () {
         return '';
     };
+    __names(B.prototype, ["bar"]);
     return B;
 }(A));
 var C = (function () {
@@ -79,6 +95,7 @@ var C = (function () {
         var a = x['foo'](); // should be string
         return a + x.foo() + x.notHere();
     };
+    __names(C.prototype, ["f"]);
     return C;
 }());
 var r = (new C()).f();
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithoutConstraints.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithoutConstraints.js
index 0e5a1ee7baea4..48b4bb5721c33 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithoutConstraints.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithoutConstraints.js
@@ -32,6 +32,20 @@ var b = {
 var r4 = b.foo(1);
 
 //// [propertyAccessOnTypeParameterWithoutConstraints.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -40,6 +54,7 @@ var C = (function () {
         var a = x['toString'](); // should be string
         return a + x.toString();
     };
+    __names(C.prototype, ["f"]);
     return C;
 }());
 var r = (new C()).f();
diff --git a/tests/baselines/reference/propertyAndFunctionWithSameName.js b/tests/baselines/reference/propertyAndFunctionWithSameName.js
index bb979735172ad..c1be699bfb6fc 100644
--- a/tests/baselines/reference/propertyAndFunctionWithSameName.js
+++ b/tests/baselines/reference/propertyAndFunctionWithSameName.js
@@ -12,17 +12,33 @@ class D {
 }
 
 //// [propertyAndFunctionWithSameName.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.x = function () {
         return 1;
     };
+    __names(C.prototype, ["x"]);
     return C;
 }());
 var D = (function () {
     function D() {
     }
     D.prototype.x = function (v) { }; // error
+    __names(D.prototype, ["x"]);
     return D;
 }());
diff --git a/tests/baselines/reference/propertyOrdering.js b/tests/baselines/reference/propertyOrdering.js
index 190117b66f44f..8a04f54c9ed68 100644
--- a/tests/baselines/reference/propertyOrdering.js
+++ b/tests/baselines/reference/propertyOrdering.js
@@ -24,6 +24,20 @@ class Bar {
 
 
 //// [propertyOrdering.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo(store) {
         this._store = store; // no repro if this is first line in class body
@@ -32,6 +46,7 @@ var Foo = (function () {
         return this._store.length; // shouldn't be an error
     };
     Foo.prototype.bar = function () { return this.store; }; // should be an error
+    __names(Foo.prototype, ["foo", "bar"]);
     return Foo;
 }());
 var Bar = (function () {
@@ -41,5 +56,6 @@ var Bar = (function () {
     Bar.prototype.foo = function () {
         return this._store.length; // shouldn't be an error
     };
+    __names(Bar.prototype, ["foo"]);
     return Bar;
 }());
diff --git a/tests/baselines/reference/propertyOrdering2.js b/tests/baselines/reference/propertyOrdering2.js
index 783e7c8d00088..333341e6fb5a7 100644
--- a/tests/baselines/reference/propertyOrdering2.js
+++ b/tests/baselines/reference/propertyOrdering2.js
@@ -9,6 +9,20 @@ class Foo {
 
 
 //// [propertyOrdering2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo(x, y) {
         this.x = x;
@@ -17,5 +31,6 @@ var Foo = (function () {
         var a = this.x;
         return this.y;
     };
+    __names(Foo.prototype, ["foo"]);
     return Foo;
 }());
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinClass.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinClass.js
index 85f63e11c68be..ec481e63663b1 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinClass.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinClass.js
@@ -33,6 +33,20 @@ class C2 {
 
 //// [protectedClassPropertyAccessibleWithinClass.js]
 // no errors
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -51,6 +65,7 @@ var C = (function () {
     });
     C.foo = function () { return this.foo; };
     C.bar = function () { this.foo(); };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 // added level of function nesting
@@ -95,5 +110,6 @@ var C2 = (function () {
         var _this = this;
         (function () { return _this.foo(); });
     };
+    __names(C2.prototype, ["foo"]);
     return C2;
 }());
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedClass.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedClass.js
index 2bc544e046ed9..59fe80e8d49fb 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedClass.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedClass.js
@@ -39,6 +39,20 @@ class C {
 
 //// [protectedClassPropertyAccessibleWithinNestedClass.js]
 // no errors
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -77,8 +91,10 @@ var C = (function () {
                 var y3 = y.x;
                 var y4 = y.y;
             };
+            __names(C2.prototype, ["foo"]);
             return C2;
         }());
     };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js
index f15f9a5b669a3..ac96ed53b73e5 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js
@@ -48,6 +48,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var B = (function () {
     function B() {
     }
@@ -89,9 +103,11 @@ var C = (function (_super) {
                 var sc3 = C.foo;
                 var sc4 = C.bar;
             };
+            __names(D.prototype, ["foo"]);
             return D;
         }());
     };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }(B));
 var E = (function (_super) {
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js
index 8273b7e31bde2..6ae95d3b88fcf 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js
@@ -115,6 +115,20 @@ d3.x;                   // Error, neither within their declaring class nor class
 d4.x;                   // Error, neither within their declaring class nor classes derived from their declaring class
 
 //// [protectedClassPropertyAccessibleWithinNestedSubclass1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -144,9 +158,11 @@ var Base = (function () {
                 d3.x; // Error, redefined in a subclass, can only be accessed in the declaring class or one of its subclasses
                 d4.x; // OK, accessed within their declaring class
             };
+            __names(A.prototype, ["methoda"]);
             return A;
         }());
     };
+    __names(Base.prototype, ["method"]);
     return Base;
 }());
 var Derived1 = (function (_super) {
@@ -170,9 +186,11 @@ var Derived1 = (function (_super) {
                 d3.x; // Error, redefined in a subclass, can only be accessed in the declaring class or one of its subclasses
                 d4.x; // Error, isn't accessed through an instance of the enclosing class
             };
+            __names(B.prototype, ["method1b"]);
             return B;
         }());
     };
+    __names(Derived1.prototype, ["method1"]);
     return Derived1;
 }(Base));
 var Derived2 = (function (_super) {
@@ -196,9 +214,11 @@ var Derived2 = (function (_super) {
                 d3.x; // Error, redefined in a subclass, can only be accessed in the declaring class or one of its subclasses
                 d4.x; // OK, accessed within a class derived from their declaring class, and through an instance of the enclosing class or one of its subclasses
             };
+            __names(C.prototype, ["method2c"]);
             return C;
         }());
     };
+    __names(Derived2.prototype, ["method2"]);
     return Derived2;
 }(Base));
 var Derived3 = (function (_super) {
@@ -222,9 +242,11 @@ var Derived3 = (function (_super) {
                 d3.x; // OK, accessed within their declaring class
                 d4.x; // Error, isn't accessed through an instance of the enclosing class
             };
+            __names(D.prototype, ["method3d"]);
             return D;
         }());
     };
+    __names(Derived3.prototype, ["method3"]);
     return Derived3;
 }(Derived1));
 var Derived4 = (function (_super) {
@@ -248,9 +270,11 @@ var Derived4 = (function (_super) {
                 d3.x; // Error, redefined in a subclass, can only be accessed in the declaring class or one of its subclasses
                 d4.x; // OK, accessed within a class derived from their declaring class, and through an instance of the enclosing class
             };
+            __names(E.prototype, ["method4e"]);
             return E;
         }());
     };
+    __names(Derived4.prototype, ["method4"]);
     return Derived4;
 }(Derived2));
 var b;
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js
index a2d35914cbe3c..f6fcd987c9b58 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js
@@ -31,6 +31,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var B = (function () {
     function B() {
     }
@@ -57,5 +71,6 @@ var C = (function (_super) {
     });
     C.foo = function () { return this.x; };
     C.bar = function () { this.foo(); };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }(B));
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js
index 7a9ee9f2268fd..257adeee0332b 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js
@@ -95,6 +95,20 @@ d3.x;                   // Error, neither within their declaring class nor class
 d4.x;                   // Error, neither within their declaring class nor classes derived from their declaring class
 
 //// [protectedClassPropertyAccessibleWithinSubclass2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -120,6 +134,7 @@ var Base = (function () {
         d3.x; // Error, redefined in a subclass, can only be accessed in the declaring class or one of its subclasses
         d4.x; // OK, accessed within their declaring class
     };
+    __names(Base.prototype, ["method"]);
     return Base;
 }());
 var Derived1 = (function (_super) {
@@ -139,6 +154,7 @@ var Derived1 = (function (_super) {
         d3.x; // Error, redefined in a subclass, can only be accessed in the declaring class or one of its subclasses
         d4.x; // Error, isn't accessed through an instance of the enclosing class
     };
+    __names(Derived1.prototype, ["method1"]);
     return Derived1;
 }(Base));
 var Derived2 = (function (_super) {
@@ -158,6 +174,7 @@ var Derived2 = (function (_super) {
         d3.x; // Error, redefined in a subclass, can only be accessed in the declaring class or one of its subclasses
         d4.x; // OK, accessed within a class derived from their declaring class, and through an instance of the enclosing class or one of its subclasses
     };
+    __names(Derived2.prototype, ["method2"]);
     return Derived2;
 }(Base));
 var Derived3 = (function (_super) {
@@ -177,6 +194,7 @@ var Derived3 = (function (_super) {
         d3.x; // OK, accessed within their declaring class
         d4.x; // Error, isn't accessed through an instance of the enclosing class
     };
+    __names(Derived3.prototype, ["method3"]);
     return Derived3;
 }(Derived1));
 var Derived4 = (function (_super) {
@@ -196,6 +214,7 @@ var Derived4 = (function (_super) {
         d3.x; // Error, redefined in a subclass, can only be accessed in the declaring class or one of its subclasses
         d4.x; // OK, accessed within a class derived from their declaring class, and through an instance of the enclosing class
     };
+    __names(Derived4.prototype, ["method4"]);
     return Derived4;
 }(Derived2));
 var b;
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js
index 2b9faf6282ca5..f4399126da30c 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js
@@ -14,6 +14,20 @@ class Derived extends Base {
 }
 
 //// [protectedClassPropertyAccessibleWithinSubclass3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -30,6 +44,7 @@ var Base = (function () {
     Base.prototype.method = function () {
         this.x; // OK, accessed within their declaring class
     };
+    __names(Base.prototype, ["method"]);
     return Base;
 }());
 var Derived = (function (_super) {
@@ -41,5 +56,6 @@ var Derived = (function (_super) {
         this.x; // OK, accessed within a subclass of the declaring class
         _super.prototype.x; // Error, x is not public
     };
+    __names(Derived.prototype, ["method1"]);
     return Derived;
 }(Base));
diff --git a/tests/baselines/reference/protectedInstanceMemberAccessibility.js b/tests/baselines/reference/protectedInstanceMemberAccessibility.js
index 6617636aa45c0..9a96d5a4d9735 100644
--- a/tests/baselines/reference/protectedInstanceMemberAccessibility.js
+++ b/tests/baselines/reference/protectedInstanceMemberAccessibility.js
@@ -45,6 +45,20 @@ class C extends A {
 
 
 //// [protectedInstanceMemberAccessibility.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -61,6 +75,7 @@ var A = (function () {
     A.prototype.f = function () {
         return "hello";
     };
+    __names(A.prototype, ["f"]);
     return A;
 }());
 var B = (function (_super) {
@@ -93,6 +108,7 @@ var B = (function (_super) {
         var c3 = c.y; // error
         var c4 = c.z; // error
     };
+    __names(B.prototype, ["g"]);
     return B;
 }(A));
 var C = (function (_super) {
diff --git a/tests/baselines/reference/protectedMembers.js b/tests/baselines/reference/protectedMembers.js
index 7684ff8e658bd..45e12fe8dc606 100644
--- a/tests/baselines/reference/protectedMembers.js
+++ b/tests/baselines/reference/protectedMembers.js
@@ -116,6 +116,20 @@ class B3 extends A3 {
 
 
 //// [protectedMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -136,6 +150,7 @@ var C1 = (function () {
     C1.sf = function () {
         return this.sx;
     };
+    __names(C1.prototype, ["f"]);
     return C1;
 }());
 // Derived class accessing protected members
@@ -150,6 +165,7 @@ var C2 = (function (_super) {
     C2.sf = function () {
         return _super.sf.call(this) + this.sx;
     };
+    __names(C2.prototype, ["f"]);
     return C2;
 }(C1));
 // Derived class making protected members public
@@ -164,6 +180,7 @@ var C3 = (function (_super) {
     C3.sf = function () {
         return _super.sf.call(this);
     };
+    __names(C3.prototype, ["f"]);
     return C3;
 }(C2));
 var c1;
diff --git a/tests/baselines/reference/quotedFunctionName1.js b/tests/baselines/reference/quotedFunctionName1.js
index f58d154bc7f96..357a64fb3beca 100644
--- a/tests/baselines/reference/quotedFunctionName1.js
+++ b/tests/baselines/reference/quotedFunctionName1.js
@@ -4,9 +4,24 @@ class Test1 {
 }
 
 //// [quotedFunctionName1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Test1 = (function () {
     function Test1() {
     }
     Test1.prototype["prop1"] = function () { };
+    __names(Test1.prototype, ["prop1"]);
     return Test1;
 }());
diff --git a/tests/baselines/reference/quotedPropertyName3.js b/tests/baselines/reference/quotedPropertyName3.js
index 0b837addf2548..91d0345b8f725 100644
--- a/tests/baselines/reference/quotedPropertyName3.js
+++ b/tests/baselines/reference/quotedPropertyName3.js
@@ -8,6 +8,20 @@ class Test {
 }
 
 //// [quotedPropertyName3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Test = (function () {
     function Test() {
     }
@@ -16,5 +30,6 @@ var Test = (function () {
         var x = function () { return _this["prop1"]; };
         var y = x();
     };
+    __names(Test.prototype, ["foo"]);
     return Test;
 }());
diff --git a/tests/baselines/reference/readonlyInNonPropertyParameters.js b/tests/baselines/reference/readonlyInNonPropertyParameters.js
index 658cf1331cdaf..00b9ecc13b662 100644
--- a/tests/baselines/reference/readonlyInNonPropertyParameters.js
+++ b/tests/baselines/reference/readonlyInNonPropertyParameters.js
@@ -9,6 +9,20 @@ class X {
 (readonly) => 0;
 
 //// [readonlyInNonPropertyParameters.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // `readonly` won't work outside of property parameters
 var X = (function () {
     function X() {
@@ -19,6 +33,7 @@ var X = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(X.prototype, ["method"]);
     return X;
 }());
 (function (x) { return 0; });
diff --git a/tests/baselines/reference/readonlyMembers.js b/tests/baselines/reference/readonlyMembers.js
index 7ba4b992f7876..fcca7be8afb53 100644
--- a/tests/baselines/reference/readonlyMembers.js
+++ b/tests/baselines/reference/readonlyMembers.js
@@ -66,6 +66,20 @@ yy[1] = "abc";  // Error
 yy["foo"] = "abc";
 
 //// [readonlyMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var x = { a: 0 };
 x.a = 1; // Error
 x.b = 1; // Error
@@ -92,6 +106,7 @@ var C = (function () {
         this.b = 1; // Error
         this.c = 1; // Error
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var o = {
diff --git a/tests/baselines/reference/recursiveBaseConstructorCreation1.js b/tests/baselines/reference/recursiveBaseConstructorCreation1.js
index c8507944ed751..7ce9933fd17b7 100644
--- a/tests/baselines/reference/recursiveBaseConstructorCreation1.js
+++ b/tests/baselines/reference/recursiveBaseConstructorCreation1.js
@@ -7,6 +7,20 @@ var x = new C2(); // Valid
 
 
 //// [recursiveBaseConstructorCreation1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -21,6 +35,7 @@ var C1 = (function () {
     function C1() {
     }
     C1.prototype.func = function (param) { };
+    __names(C1.prototype, ["func"]);
     return C1;
 }());
 var C2 = (function (_super) {
diff --git a/tests/baselines/reference/recursiveClassReferenceTest.js b/tests/baselines/reference/recursiveClassReferenceTest.js
index 2d44740ac73cd..bd0ceccac9ff9 100644
--- a/tests/baselines/reference/recursiveClassReferenceTest.js
+++ b/tests/baselines/reference/recursiveClassReferenceTest.js
@@ -105,6 +105,20 @@ module Sample.Thing.Languages.PlainText {
 //// [recursiveClassReferenceTest.js]
 // Scenario 1: Test reqursive function call with "this" parameter
 // Scenario 2: Test recursive function call with cast and "this" parameter
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -130,6 +144,7 @@ var Sample;
                     StartFindAction.prototype.run = function (Thing) {
                         return true;
                     };
+                    __names(StartFindAction.prototype, ["getId", "run"]);
                     return StartFindAction;
                 }());
                 Find.StartFindAction = StartFindAction;
@@ -157,6 +172,7 @@ var Sample;
                 };
                 FindWidget.prototype.destroy = function () {
                 };
+                __names(FindWidget.prototype, ["gar", "getDomNode", "destroy"]);
                 return FindWidget;
             }());
             Widgets.FindWidget = FindWidget;
@@ -167,6 +183,7 @@ var AbstractMode = (function () {
     function AbstractMode() {
     }
     AbstractMode.prototype.getInitialState = function () { return null; };
+    __names(AbstractMode.prototype, ["getInitialState"]);
     return AbstractMode;
 }());
 (function (Sample) {
@@ -187,6 +204,7 @@ var AbstractMode = (function () {
                         return this === other;
                     };
                     State.prototype.getMode = function () { return mode; };
+                    __names(State.prototype, ["clone", "equals", "getMode"]);
                     return State;
                 }());
                 PlainText.State = State;
@@ -199,6 +217,7 @@ var AbstractMode = (function () {
                     Mode.prototype.getInitialState = function () {
                         return new State(self);
                     };
+                    __names(Mode.prototype, ["getInitialState"]);
                     return Mode;
                 }(AbstractMode));
                 PlainText.Mode = Mode;
diff --git a/tests/baselines/reference/recursiveClassReferenceTest.js.map b/tests/baselines/reference/recursiveClassReferenceTest.js.map
index b27f18ddffac6..d3304f769d772 100644
--- a/tests/baselines/reference/recursiveClassReferenceTest.js.map
+++ b/tests/baselines/reference/recursiveClassReferenceTest.js.map
@@ -1,2 +1,2 @@
 //// [recursiveClassReferenceTest.js.map]
-{"version":3,"file":"recursiveClassReferenceTest.js","sourceRoot":"","sources":["recursiveClassReferenceTest.ts"],"names":[],"mappings":"AAAA,iEAAiE;AACjE,0EAA0E;;;;;;;;;;;AA8B1E,IAAO,MAAM,CAUZ;AAVD,WAAO,MAAM;IAAC,IAAA,OAAO,CAUpB;IAVa,WAAA,OAAO;QAAC,IAAA,KAAK,CAU1B;QAVqB,WAAA,OAAK;YAAC,IAAA,IAAI,CAU/B;YAV2B,WAAA,IAAI;gBAC/B;oBAAA;oBAQA,CAAC;oBANO,+BAAK,GAAZ,cAAiB,MAAM,CAAC,IAAI,CAAC,CAAC,CAAC;oBAExB,6BAAG,GAAV,UAAW,KAA6B;wBAEvC,MAAM,CAAC,IAAI,CAAC;oBACb,CAAC;oBACF,sBAAC;gBAAD,CAAC,AARD,IAQC;gBARY,oBAAe,kBAQ3B,CAAA;YACF,CAAC,EAV2B,IAAI,GAAJ,YAAI,KAAJ,YAAI,QAU/B;QAAD,CAAC,EAVqB,KAAK,GAAL,aAAK,KAAL,aAAK,QAU1B;IAAD,CAAC,EAVa,OAAO,GAAP,cAAO,KAAP,cAAO,QAUpB;AAAD,CAAC,EAVM,MAAM,KAAN,MAAM,QAUZ;AAED,WAAO,MAAM;IAAC,IAAA,KAAK,CAoBlB;IApBa,WAAA,KAAK;QAAC,IAAA,OAAO,CAoB1B;QApBmB,WAAA,OAAO;YAC1B;gBAKC,oBAAoB,SAAkC;oBAAlC,cAAS,GAAT,SAAS,CAAyB;oBAD9C,YAAO,GAAO,IAAI,CAAC;oBAEvB,aAAa;oBACb,SAAS,CAAC,SAAS,CAAC,WAAW,EAAE,IAAI,CAAC,CAAC;gBAC3C,CAAC;gBANM,wBAAG,GAAV,UAAW,MAAyC,IAAI,EAAE,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC;oBAAA,MAAM,CAAC,MAAM,CAAC,IAAI,CAAC,CAAC;gBAAA,CAAC,CAAA,CAAC;gBAQlF,+BAAU,GAAjB;oBACC,MAAM,CAAC,OAAO,CAAC;gBAChB,CAAC;gBAEM,4BAAO,GAAd;gBAEA,CAAC;gBAEF,iBAAC;YAAD,CAAC,AAlBD,IAkBC;YAlBY,kBAAU,aAkBtB,CAAA;QACF,CAAC,EApBmB,OAAO,GAAP,aAAO,KAAP,aAAO,QAoB1B;IAAD,CAAC,EApBa,KAAK,GAAL,YAAK,KAAL,YAAK,QAoBlB;AAAD,CAAC,EApBM,MAAM,KAAN,MAAM,QAoBZ;AAGD;IAAA;IAAuF,CAAC;IAA3C,sCAAe,GAAtB,cAAmC,MAAM,CAAC,IAAI,CAAC,CAAA,CAAC;IAAC,mBAAC;AAAD,CAAC,AAAxF,IAAwF;AASxF,WAAO,MAAM;IAAC,IAAA,KAAK,CAwBlB;IAxBa,WAAA,KAAK;QAAC,IAAA,SAAS,CAwB5B;QAxBmB,WAAA,SAAS;YAAC,IAAA,SAAS,CAwBtC;YAxB6B,WAAA,SAAS;gBAEtC;oBACO,eAAoB,IAAW;wBAAX,SAAI,GAAJ,IAAI,CAAO;oBAAI,CAAC;oBACnC,qBAAK,GAAZ;wBACC,MAAM,CAAC,IAAI,CAAC;oBACb,CAAC;oBAEM,sBAAM,GAAb,UAAc,KAAY;wBACzB,MAAM,CAAC,IAAI,KAAK,KAAK,CAAC;oBACvB,CAAC;oBAEM,uBAAO,GAAd,cAA0B,MAAM,CAAC,IAAI,CAAC,CAAC,CAAC;oBACzC,YAAC;gBAAD,CAAC,AAXD,IAWC;gBAXY,eAAK,QAWjB,CAAA;gBAED;oBAA0B,wBAAY;oBAAtC;;oBAQA,CAAC;oBANA,aAAa;oBACN,8BAAe,GAAtB;wBACC,MAAM,CAAC,IAAI,KAAK,CAAC,IAAI,CAAC,CAAC;oBACxB,CAAC;oBAGF,WAAC;gBAAD,CAAC,AARD,CAA0B,YAAY,GAQrC;gBARY,cAAI,OAQhB,CAAA;YACF,CAAC,EAxB6B,SAAS,GAAT,mBAAS,KAAT,mBAAS,QAwBtC;QAAD,CAAC,EAxBmB,SAAS,GAAT,eAAS,KAAT,eAAS,QAwB5B;IAAD,CAAC,EAxBa,KAAK,GAAL,YAAK,KAAL,YAAK,QAwBlB;AAAD,CAAC,EAxBM,MAAM,KAAN,MAAM,QAwBZ"}
\ No newline at end of file
+{"version":3,"file":"recursiveClassReferenceTest.js","sourceRoot":"","sources":["recursiveClassReferenceTest.ts"],"names":[],"mappings":"AAAA,iEAAiE;AACjE,0EAA0E;;;;;;;;;;;;;;;;;;;;;;;;;AA8B1E,IAAO,MAAM,CAUZ;AAVD,WAAO,MAAM;IAAC,IAAA,OAAO,CAUpB;IAVa,WAAA,OAAO;QAAC,IAAA,KAAK,CAU1B;QAVqB,WAAA,OAAK;YAAC,IAAA,IAAI,CAU/B;YAV2B,WAAA,IAAI;gBAC/B;oBAAA;oBAQA,CAAC;oBANO,+BAAK,GAAZ,cAAiB,MAAM,CAAC,IAAI,CAAC,CAAC,CAAC;oBAExB,6BAAG,GAAV,UAAW,KAA6B;wBAEvC,MAAM,CAAC,IAAI,CAAC;oBACb,CAAC;;oBACF,sBAAC;gBAAD,CAAC,AARD,IAQC;gBARY,oBAAe,kBAQ3B,CAAA;YACF,CAAC,EAV2B,IAAI,GAAJ,YAAI,KAAJ,YAAI,QAU/B;QAAD,CAAC,EAVqB,KAAK,GAAL,aAAK,KAAL,aAAK,QAU1B;IAAD,CAAC,EAVa,OAAO,GAAP,cAAO,KAAP,cAAO,QAUpB;AAAD,CAAC,EAVM,MAAM,KAAN,MAAM,QAUZ;AAED,WAAO,MAAM;IAAC,IAAA,KAAK,CAoBlB;IApBa,WAAA,KAAK;QAAC,IAAA,OAAO,CAoB1B;QApBmB,WAAA,OAAO;YAC1B;gBAKC,oBAAoB,SAAkC;oBAAlC,cAAS,GAAT,SAAS,CAAyB;oBAD9C,YAAO,GAAO,IAAI,CAAC;oBAEvB,aAAa;oBACb,SAAS,CAAC,SAAS,CAAC,WAAW,EAAE,IAAI,CAAC,CAAC;gBAC3C,CAAC;gBANM,wBAAG,GAAV,UAAW,MAAyC,IAAI,EAAE,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC;oBAAA,MAAM,CAAC,MAAM,CAAC,IAAI,CAAC,CAAC;gBAAA,CAAC,CAAA,CAAC;gBAQlF,+BAAU,GAAjB;oBACC,MAAM,CAAC,OAAO,CAAC;gBAChB,CAAC;gBAEM,4BAAO,GAAd;gBAEA,CAAC;;gBAEF,iBAAC;YAAD,CAAC,AAlBD,IAkBC;YAlBY,kBAAU,aAkBtB,CAAA;QACF,CAAC,EApBmB,OAAO,GAAP,aAAO,KAAP,aAAO,QAoB1B;IAAD,CAAC,EApBa,KAAK,GAAL,YAAK,KAAL,YAAK,QAoBlB;AAAD,CAAC,EApBM,MAAM,KAAN,MAAM,QAoBZ;AAGD;IAAA;IAAuF,CAAC;IAA3C,sCAAe,GAAtB,cAAmC,MAAM,CAAC,IAAI,CAAC,CAAA,CAAC;;IAAC,mBAAC;AAAD,CAAC,AAAxF,IAAwF;AASxF,WAAO,MAAM;IAAC,IAAA,KAAK,CAwBlB;IAxBa,WAAA,KAAK;QAAC,IAAA,SAAS,CAwB5B;QAxBmB,WAAA,SAAS;YAAC,IAAA,SAAS,CAwBtC;YAxB6B,WAAA,SAAS;gBAEtC;oBACO,eAAoB,IAAW;wBAAX,SAAI,GAAJ,IAAI,CAAO;oBAAI,CAAC;oBACnC,qBAAK,GAAZ;wBACC,MAAM,CAAC,IAAI,CAAC;oBACb,CAAC;oBAEM,sBAAM,GAAb,UAAc,KAAY;wBACzB,MAAM,CAAC,IAAI,KAAK,KAAK,CAAC;oBACvB,CAAC;oBAEM,uBAAO,GAAd,cAA0B,MAAM,CAAC,IAAI,CAAC,CAAC,CAAC;;oBACzC,YAAC;gBAAD,CAAC,AAXD,IAWC;gBAXY,eAAK,QAWjB,CAAA;gBAED;oBAA0B,wBAAY;oBAAtC;;oBAQA,CAAC;oBANA,aAAa;oBACN,8BAAe,GAAtB;wBACC,MAAM,CAAC,IAAI,KAAK,CAAC,IAAI,CAAC,CAAC;oBACxB,CAAC;;oBAGF,WAAC;gBAAD,CAAC,AARD,CAA0B,YAAY,GAQrC;gBARY,cAAI,OAQhB,CAAA;YACF,CAAC,EAxB6B,SAAS,GAAT,mBAAS,KAAT,mBAAS,QAwBtC;QAAD,CAAC,EAxBmB,SAAS,GAAT,eAAS,KAAT,eAAS,QAwB5B;IAAD,CAAC,EAxBa,KAAK,GAAL,YAAK,KAAL,YAAK,QAwBlB;AAAD,CAAC,EAxBM,MAAM,KAAN,MAAM,QAwBZ"}
\ No newline at end of file
diff --git a/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt b/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt
index 4196b08c60984..cb45f627c4365 100644
--- a/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt
+++ b/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt
@@ -26,6 +26,20 @@ sourceFile:recursiveClassReferenceTest.ts
 1->Emitted(2, 1) Source(2, 1) + SourceIndex(0)
 2 >Emitted(2, 75) Source(2, 75) + SourceIndex(0)
 ---
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>var __extends = (this && this.__extends) || (function () {
 >>>    var extendStatics = Object.setPrototypeOf ||
 >>>        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -86,10 +100,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >          		}
   >          	}
   >          }
-1 >Emitted(13, 1) Source(32, 1) + SourceIndex(0)
-2 >Emitted(13, 5) Source(32, 8) + SourceIndex(0)
-3 >Emitted(13, 11) Source(32, 14) + SourceIndex(0)
-4 >Emitted(13, 12) Source(42, 2) + SourceIndex(0)
+1 >Emitted(27, 1) Source(32, 1) + SourceIndex(0)
+2 >Emitted(27, 5) Source(32, 8) + SourceIndex(0)
+3 >Emitted(27, 11) Source(32, 14) + SourceIndex(0)
+4 >Emitted(27, 12) Source(42, 2) + SourceIndex(0)
 ---
 >>>(function (Sample) {
 1->
@@ -98,9 +112,9 @@ sourceFile:recursiveClassReferenceTest.ts
 1->
 2 >module 
 3 >           Sample
-1->Emitted(14, 1) Source(32, 1) + SourceIndex(0)
-2 >Emitted(14, 12) Source(32, 8) + SourceIndex(0)
-3 >Emitted(14, 18) Source(32, 14) + SourceIndex(0)
+1->Emitted(28, 1) Source(32, 1) + SourceIndex(0)
+2 >Emitted(28, 12) Source(32, 8) + SourceIndex(0)
+3 >Emitted(28, 18) Source(32, 14) + SourceIndex(0)
 ---
 >>>    var Actions;
 1 >^^^^
@@ -122,10 +136,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >               		}
   >               	}
   >               }
-1 >Emitted(15, 5) Source(32, 15) + SourceIndex(0)
-2 >Emitted(15, 9) Source(32, 15) + SourceIndex(0)
-3 >Emitted(15, 16) Source(32, 22) + SourceIndex(0)
-4 >Emitted(15, 17) Source(42, 2) + SourceIndex(0)
+1 >Emitted(29, 5) Source(32, 15) + SourceIndex(0)
+2 >Emitted(29, 9) Source(32, 15) + SourceIndex(0)
+3 >Emitted(29, 16) Source(32, 22) + SourceIndex(0)
+4 >Emitted(29, 17) Source(42, 2) + SourceIndex(0)
 ---
 >>>    (function (Actions) {
 1->^^^^
@@ -134,9 +148,9 @@ sourceFile:recursiveClassReferenceTest.ts
 1->
 2 >    
 3 >               Actions
-1->Emitted(16, 5) Source(32, 15) + SourceIndex(0)
-2 >Emitted(16, 16) Source(32, 15) + SourceIndex(0)
-3 >Emitted(16, 23) Source(32, 22) + SourceIndex(0)
+1->Emitted(30, 5) Source(32, 15) + SourceIndex(0)
+2 >Emitted(30, 16) Source(32, 15) + SourceIndex(0)
+3 >Emitted(30, 23) Source(32, 22) + SourceIndex(0)
 ---
 >>>        var Thing;
 1 >^^^^^^^^
@@ -158,10 +172,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >                 		}
   >                 	}
   >                 }
-1 >Emitted(17, 9) Source(32, 23) + SourceIndex(0)
-2 >Emitted(17, 13) Source(32, 23) + SourceIndex(0)
-3 >Emitted(17, 18) Source(32, 28) + SourceIndex(0)
-4 >Emitted(17, 19) Source(42, 2) + SourceIndex(0)
+1 >Emitted(31, 9) Source(32, 23) + SourceIndex(0)
+2 >Emitted(31, 13) Source(32, 23) + SourceIndex(0)
+3 >Emitted(31, 18) Source(32, 28) + SourceIndex(0)
+4 >Emitted(31, 19) Source(42, 2) + SourceIndex(0)
 ---
 >>>        (function (Thing_1) {
 1->^^^^^^^^
@@ -170,9 +184,9 @@ sourceFile:recursiveClassReferenceTest.ts
 1->
 2 >        
 3 >                   Thing
-1->Emitted(18, 9) Source(32, 23) + SourceIndex(0)
-2 >Emitted(18, 20) Source(32, 23) + SourceIndex(0)
-3 >Emitted(18, 27) Source(32, 28) + SourceIndex(0)
+1->Emitted(32, 9) Source(32, 23) + SourceIndex(0)
+2 >Emitted(32, 20) Source(32, 23) + SourceIndex(0)
+3 >Emitted(32, 27) Source(32, 28) + SourceIndex(0)
 ---
 >>>            var Find;
 1 >^^^^^^^^^^^^
@@ -194,10 +208,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >                    		}
   >                    	}
   >                    }
-1 >Emitted(19, 13) Source(32, 29) + SourceIndex(0)
-2 >Emitted(19, 17) Source(32, 29) + SourceIndex(0)
-3 >Emitted(19, 21) Source(32, 33) + SourceIndex(0)
-4 >Emitted(19, 22) Source(42, 2) + SourceIndex(0)
+1 >Emitted(33, 13) Source(32, 29) + SourceIndex(0)
+2 >Emitted(33, 17) Source(32, 29) + SourceIndex(0)
+3 >Emitted(33, 21) Source(32, 33) + SourceIndex(0)
+4 >Emitted(33, 22) Source(42, 2) + SourceIndex(0)
 ---
 >>>            (function (Find) {
 1->^^^^^^^^^^^^
@@ -207,22 +221,22 @@ sourceFile:recursiveClassReferenceTest.ts
 1->
 2 >            
 3 >                       Find
-1->Emitted(20, 13) Source(32, 29) + SourceIndex(0)
-2 >Emitted(20, 24) Source(32, 29) + SourceIndex(0)
-3 >Emitted(20, 28) Source(32, 33) + SourceIndex(0)
+1->Emitted(34, 13) Source(32, 29) + SourceIndex(0)
+2 >Emitted(34, 24) Source(32, 29) + SourceIndex(0)
+3 >Emitted(34, 28) Source(32, 33) + SourceIndex(0)
 ---
 >>>                var StartFindAction = (function () {
 1->^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1-> {
   >	
-1->Emitted(21, 17) Source(33, 2) + SourceIndex(0)
+1->Emitted(35, 17) Source(33, 2) + SourceIndex(0)
 ---
 >>>                    function StartFindAction() {
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^->
 1->
-1->Emitted(22, 21) Source(33, 2) + SourceIndex(0)
+1->Emitted(36, 21) Source(33, 2) + SourceIndex(0)
 ---
 >>>                    }
 1->^^^^^^^^^^^^^^^^^^^^
@@ -238,8 +252,8 @@ sourceFile:recursiveClassReferenceTest.ts
   >		}
   >	
 2 >                    }
-1->Emitted(23, 21) Source(41, 2) + SourceIndex(0)
-2 >Emitted(23, 22) Source(41, 3) + SourceIndex(0)
+1->Emitted(37, 21) Source(41, 2) + SourceIndex(0)
+2 >Emitted(37, 22) Source(41, 3) + SourceIndex(0)
 ---
 >>>                    StartFindAction.prototype.getId = function () { return "yo"; };
 1->^^^^^^^^^^^^^^^^^^^^
@@ -262,16 +276,16 @@ sourceFile:recursiveClassReferenceTest.ts
 8 >                                                                               ;
 9 >                                                                                 
 10>                                                                                 }
-1->Emitted(24, 21) Source(35, 10) + SourceIndex(0)
-2 >Emitted(24, 52) Source(35, 15) + SourceIndex(0)
-3 >Emitted(24, 55) Source(35, 3) + SourceIndex(0)
-4 >Emitted(24, 69) Source(35, 20) + SourceIndex(0)
-5 >Emitted(24, 75) Source(35, 26) + SourceIndex(0)
-6 >Emitted(24, 76) Source(35, 27) + SourceIndex(0)
-7 >Emitted(24, 80) Source(35, 31) + SourceIndex(0)
-8 >Emitted(24, 81) Source(35, 32) + SourceIndex(0)
-9 >Emitted(24, 82) Source(35, 33) + SourceIndex(0)
-10>Emitted(24, 83) Source(35, 34) + SourceIndex(0)
+1->Emitted(38, 21) Source(35, 10) + SourceIndex(0)
+2 >Emitted(38, 52) Source(35, 15) + SourceIndex(0)
+3 >Emitted(38, 55) Source(35, 3) + SourceIndex(0)
+4 >Emitted(38, 69) Source(35, 20) + SourceIndex(0)
+5 >Emitted(38, 75) Source(35, 26) + SourceIndex(0)
+6 >Emitted(38, 76) Source(35, 27) + SourceIndex(0)
+7 >Emitted(38, 80) Source(35, 31) + SourceIndex(0)
+8 >Emitted(38, 81) Source(35, 32) + SourceIndex(0)
+9 >Emitted(38, 82) Source(35, 33) + SourceIndex(0)
+10>Emitted(38, 83) Source(35, 34) + SourceIndex(0)
 ---
 >>>                    StartFindAction.prototype.run = function (Thing) {
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -286,11 +300,11 @@ sourceFile:recursiveClassReferenceTest.ts
 3 >                                                 
 4 >                                                    public run(
 5 >                                                              Thing:Sample.Thing.ICodeThing
-1 >Emitted(25, 21) Source(37, 10) + SourceIndex(0)
-2 >Emitted(25, 50) Source(37, 13) + SourceIndex(0)
-3 >Emitted(25, 53) Source(37, 3) + SourceIndex(0)
-4 >Emitted(25, 63) Source(37, 14) + SourceIndex(0)
-5 >Emitted(25, 68) Source(37, 43) + SourceIndex(0)
+1 >Emitted(39, 21) Source(37, 10) + SourceIndex(0)
+2 >Emitted(39, 50) Source(37, 13) + SourceIndex(0)
+3 >Emitted(39, 53) Source(37, 3) + SourceIndex(0)
+4 >Emitted(39, 63) Source(37, 14) + SourceIndex(0)
+5 >Emitted(39, 68) Source(37, 43) + SourceIndex(0)
 ---
 >>>                        return true;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -305,30 +319,31 @@ sourceFile:recursiveClassReferenceTest.ts
 3 >                               
 4 >                               true
 5 >                                   ;
-1 >Emitted(26, 25) Source(39, 4) + SourceIndex(0)
-2 >Emitted(26, 31) Source(39, 10) + SourceIndex(0)
-3 >Emitted(26, 32) Source(39, 11) + SourceIndex(0)
-4 >Emitted(26, 36) Source(39, 15) + SourceIndex(0)
-5 >Emitted(26, 37) Source(39, 16) + SourceIndex(0)
+1 >Emitted(40, 25) Source(39, 4) + SourceIndex(0)
+2 >Emitted(40, 31) Source(39, 10) + SourceIndex(0)
+3 >Emitted(40, 32) Source(39, 11) + SourceIndex(0)
+4 >Emitted(40, 36) Source(39, 15) + SourceIndex(0)
+5 >Emitted(40, 37) Source(39, 16) + SourceIndex(0)
 ---
 >>>                    };
 1 >^^^^^^^^^^^^^^^^^^^^
 2 >                    ^
-3 >                     ^^^^^^^^^^^^^^^^^^^^^^^->
+3 >                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >		
 2 >                    }
-1 >Emitted(27, 21) Source(40, 3) + SourceIndex(0)
-2 >Emitted(27, 22) Source(40, 4) + SourceIndex(0)
+1 >Emitted(41, 21) Source(40, 3) + SourceIndex(0)
+2 >Emitted(41, 22) Source(40, 4) + SourceIndex(0)
 ---
+>>>                    __names(StartFindAction.prototype, ["getId", "run"]);
 >>>                    return StartFindAction;
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^^^^^^^^^^^^
 1->
   >	
 2 >                    }
-1->Emitted(28, 21) Source(41, 2) + SourceIndex(0)
-2 >Emitted(28, 43) Source(41, 3) + SourceIndex(0)
+1->Emitted(43, 21) Source(41, 2) + SourceIndex(0)
+2 >Emitted(43, 43) Source(41, 3) + SourceIndex(0)
 ---
 >>>                }());
 1 >^^^^^^^^^^^^^^^^
@@ -348,10 +363,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >                 			return true;
   >                 		}
   >                 	}
-1 >Emitted(29, 17) Source(41, 2) + SourceIndex(0)
-2 >Emitted(29, 18) Source(41, 3) + SourceIndex(0)
-3 >Emitted(29, 18) Source(33, 2) + SourceIndex(0)
-4 >Emitted(29, 22) Source(41, 3) + SourceIndex(0)
+1 >Emitted(44, 17) Source(41, 2) + SourceIndex(0)
+2 >Emitted(44, 18) Source(41, 3) + SourceIndex(0)
+3 >Emitted(44, 18) Source(33, 2) + SourceIndex(0)
+4 >Emitted(44, 22) Source(41, 3) + SourceIndex(0)
 ---
 >>>                Find.StartFindAction = StartFindAction;
 1->^^^^^^^^^^^^^^^^
@@ -371,10 +386,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >                                    		}
   >                                    	}
 4 >                                                      
-1->Emitted(30, 17) Source(33, 15) + SourceIndex(0)
-2 >Emitted(30, 37) Source(33, 30) + SourceIndex(0)
-3 >Emitted(30, 55) Source(41, 3) + SourceIndex(0)
-4 >Emitted(30, 56) Source(41, 3) + SourceIndex(0)
+1->Emitted(45, 17) Source(33, 15) + SourceIndex(0)
+2 >Emitted(45, 37) Source(33, 30) + SourceIndex(0)
+3 >Emitted(45, 55) Source(41, 3) + SourceIndex(0)
+4 >Emitted(45, 56) Source(41, 3) + SourceIndex(0)
 ---
 >>>            })(Find = Thing_1.Find || (Thing_1.Find = {}));
 1->^^^^^^^^^^^^
@@ -406,15 +421,15 @@ sourceFile:recursiveClassReferenceTest.ts
   >                                                   		}
   >                                                   	}
   >                                                   }
-1->Emitted(31, 13) Source(42, 1) + SourceIndex(0)
-2 >Emitted(31, 14) Source(42, 2) + SourceIndex(0)
-3 >Emitted(31, 16) Source(32, 29) + SourceIndex(0)
-4 >Emitted(31, 20) Source(32, 33) + SourceIndex(0)
-5 >Emitted(31, 23) Source(32, 29) + SourceIndex(0)
-6 >Emitted(31, 35) Source(32, 33) + SourceIndex(0)
-7 >Emitted(31, 40) Source(32, 29) + SourceIndex(0)
-8 >Emitted(31, 52) Source(32, 33) + SourceIndex(0)
-9 >Emitted(31, 60) Source(42, 2) + SourceIndex(0)
+1->Emitted(46, 13) Source(42, 1) + SourceIndex(0)
+2 >Emitted(46, 14) Source(42, 2) + SourceIndex(0)
+3 >Emitted(46, 16) Source(32, 29) + SourceIndex(0)
+4 >Emitted(46, 20) Source(32, 33) + SourceIndex(0)
+5 >Emitted(46, 23) Source(32, 29) + SourceIndex(0)
+6 >Emitted(46, 35) Source(32, 33) + SourceIndex(0)
+7 >Emitted(46, 40) Source(32, 29) + SourceIndex(0)
+8 >Emitted(46, 52) Source(32, 33) + SourceIndex(0)
+9 >Emitted(46, 60) Source(42, 2) + SourceIndex(0)
 ---
 >>>        })(Thing = Actions.Thing || (Actions.Thing = {}));
 1 >^^^^^^^^
@@ -446,15 +461,15 @@ sourceFile:recursiveClassReferenceTest.ts
   >                                                  		}
   >                                                  	}
   >                                                  }
-1 >Emitted(32, 9) Source(42, 1) + SourceIndex(0)
-2 >Emitted(32, 10) Source(42, 2) + SourceIndex(0)
-3 >Emitted(32, 12) Source(32, 23) + SourceIndex(0)
-4 >Emitted(32, 17) Source(32, 28) + SourceIndex(0)
-5 >Emitted(32, 20) Source(32, 23) + SourceIndex(0)
-6 >Emitted(32, 33) Source(32, 28) + SourceIndex(0)
-7 >Emitted(32, 38) Source(32, 23) + SourceIndex(0)
-8 >Emitted(32, 51) Source(32, 28) + SourceIndex(0)
-9 >Emitted(32, 59) Source(42, 2) + SourceIndex(0)
+1 >Emitted(47, 9) Source(42, 1) + SourceIndex(0)
+2 >Emitted(47, 10) Source(42, 2) + SourceIndex(0)
+3 >Emitted(47, 12) Source(32, 23) + SourceIndex(0)
+4 >Emitted(47, 17) Source(32, 28) + SourceIndex(0)
+5 >Emitted(47, 20) Source(32, 23) + SourceIndex(0)
+6 >Emitted(47, 33) Source(32, 28) + SourceIndex(0)
+7 >Emitted(47, 38) Source(32, 23) + SourceIndex(0)
+8 >Emitted(47, 51) Source(32, 28) + SourceIndex(0)
+9 >Emitted(47, 59) Source(42, 2) + SourceIndex(0)
 ---
 >>>    })(Actions = Sample.Actions || (Sample.Actions = {}));
 1->^^^^
@@ -485,15 +500,15 @@ sourceFile:recursiveClassReferenceTest.ts
   >                                                  		}
   >                                                  	}
   >                                                  }
-1->Emitted(33, 5) Source(42, 1) + SourceIndex(0)
-2 >Emitted(33, 6) Source(42, 2) + SourceIndex(0)
-3 >Emitted(33, 8) Source(32, 15) + SourceIndex(0)
-4 >Emitted(33, 15) Source(32, 22) + SourceIndex(0)
-5 >Emitted(33, 18) Source(32, 15) + SourceIndex(0)
-6 >Emitted(33, 32) Source(32, 22) + SourceIndex(0)
-7 >Emitted(33, 37) Source(32, 15) + SourceIndex(0)
-8 >Emitted(33, 51) Source(32, 22) + SourceIndex(0)
-9 >Emitted(33, 59) Source(42, 2) + SourceIndex(0)
+1->Emitted(48, 5) Source(42, 1) + SourceIndex(0)
+2 >Emitted(48, 6) Source(42, 2) + SourceIndex(0)
+3 >Emitted(48, 8) Source(32, 15) + SourceIndex(0)
+4 >Emitted(48, 15) Source(32, 22) + SourceIndex(0)
+5 >Emitted(48, 18) Source(32, 15) + SourceIndex(0)
+6 >Emitted(48, 32) Source(32, 22) + SourceIndex(0)
+7 >Emitted(48, 37) Source(32, 15) + SourceIndex(0)
+8 >Emitted(48, 51) Source(32, 22) + SourceIndex(0)
+9 >Emitted(48, 59) Source(42, 2) + SourceIndex(0)
 ---
 >>>})(Sample || (Sample = {}));
 1 >
@@ -520,13 +535,13 @@ sourceFile:recursiveClassReferenceTest.ts
   >                    		}
   >                    	}
   >                    }
-1 >Emitted(34, 1) Source(42, 1) + SourceIndex(0)
-2 >Emitted(34, 2) Source(42, 2) + SourceIndex(0)
-3 >Emitted(34, 4) Source(32, 8) + SourceIndex(0)
-4 >Emitted(34, 10) Source(32, 14) + SourceIndex(0)
-5 >Emitted(34, 15) Source(32, 8) + SourceIndex(0)
-6 >Emitted(34, 21) Source(32, 14) + SourceIndex(0)
-7 >Emitted(34, 29) Source(42, 2) + SourceIndex(0)
+1 >Emitted(49, 1) Source(42, 1) + SourceIndex(0)
+2 >Emitted(49, 2) Source(42, 2) + SourceIndex(0)
+3 >Emitted(49, 4) Source(32, 8) + SourceIndex(0)
+4 >Emitted(49, 10) Source(32, 14) + SourceIndex(0)
+5 >Emitted(49, 15) Source(32, 8) + SourceIndex(0)
+6 >Emitted(49, 21) Source(32, 14) + SourceIndex(0)
+7 >Emitted(49, 29) Source(42, 2) + SourceIndex(0)
 ---
 >>>(function (Sample) {
 1 >
@@ -537,9 +552,9 @@ sourceFile:recursiveClassReferenceTest.ts
   >
 2 >module 
 3 >           Sample
-1 >Emitted(35, 1) Source(44, 1) + SourceIndex(0)
-2 >Emitted(35, 12) Source(44, 8) + SourceIndex(0)
-3 >Emitted(35, 18) Source(44, 14) + SourceIndex(0)
+1 >Emitted(50, 1) Source(44, 1) + SourceIndex(0)
+2 >Emitted(50, 12) Source(44, 8) + SourceIndex(0)
+3 >Emitted(50, 18) Source(44, 14) + SourceIndex(0)
 ---
 >>>    var Thing;
 1 >^^^^
@@ -571,10 +586,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >             
   >             	}
   >             }
-1 >Emitted(36, 5) Source(44, 15) + SourceIndex(0)
-2 >Emitted(36, 9) Source(44, 15) + SourceIndex(0)
-3 >Emitted(36, 14) Source(44, 20) + SourceIndex(0)
-4 >Emitted(36, 15) Source(64, 2) + SourceIndex(0)
+1 >Emitted(51, 5) Source(44, 15) + SourceIndex(0)
+2 >Emitted(51, 9) Source(44, 15) + SourceIndex(0)
+3 >Emitted(51, 14) Source(44, 20) + SourceIndex(0)
+4 >Emitted(51, 15) Source(64, 2) + SourceIndex(0)
 ---
 >>>    (function (Thing) {
 1->^^^^
@@ -584,9 +599,9 @@ sourceFile:recursiveClassReferenceTest.ts
 1->
 2 >    
 3 >               Thing
-1->Emitted(37, 5) Source(44, 15) + SourceIndex(0)
-2 >Emitted(37, 16) Source(44, 15) + SourceIndex(0)
-3 >Emitted(37, 21) Source(44, 20) + SourceIndex(0)
+1->Emitted(52, 5) Source(44, 15) + SourceIndex(0)
+2 >Emitted(52, 16) Source(44, 15) + SourceIndex(0)
+3 >Emitted(52, 21) Source(44, 20) + SourceIndex(0)
 ---
 >>>        var Widgets;
 1->^^^^^^^^
@@ -618,10 +633,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >                   
   >                   	}
   >                   }
-1->Emitted(38, 9) Source(44, 21) + SourceIndex(0)
-2 >Emitted(38, 13) Source(44, 21) + SourceIndex(0)
-3 >Emitted(38, 20) Source(44, 28) + SourceIndex(0)
-4 >Emitted(38, 21) Source(64, 2) + SourceIndex(0)
+1->Emitted(53, 9) Source(44, 21) + SourceIndex(0)
+2 >Emitted(53, 13) Source(44, 21) + SourceIndex(0)
+3 >Emitted(53, 20) Source(44, 28) + SourceIndex(0)
+4 >Emitted(53, 21) Source(64, 2) + SourceIndex(0)
 ---
 >>>        (function (Widgets) {
 1->^^^^^^^^
@@ -631,16 +646,16 @@ sourceFile:recursiveClassReferenceTest.ts
 1->
 2 >        
 3 >                   Widgets
-1->Emitted(39, 9) Source(44, 21) + SourceIndex(0)
-2 >Emitted(39, 20) Source(44, 21) + SourceIndex(0)
-3 >Emitted(39, 27) Source(44, 28) + SourceIndex(0)
+1->Emitted(54, 9) Source(44, 21) + SourceIndex(0)
+2 >Emitted(54, 20) Source(44, 21) + SourceIndex(0)
+3 >Emitted(54, 27) Source(44, 28) + SourceIndex(0)
 ---
 >>>            var FindWidget = (function () {
 1->^^^^^^^^^^^^
 2 >            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1-> {
   >	
-1->Emitted(40, 13) Source(45, 2) + SourceIndex(0)
+1->Emitted(55, 13) Source(45, 2) + SourceIndex(0)
 ---
 >>>                function FindWidget(codeThing) {
 1->^^^^^^^^^^^^^^^^
@@ -655,9 +670,9 @@ sourceFile:recursiveClassReferenceTest.ts
   >		
 2 >                constructor(private 
 3 >                                    codeThing: Sample.Thing.ICodeThing
-1->Emitted(41, 17) Source(50, 3) + SourceIndex(0)
-2 >Emitted(41, 37) Source(50, 23) + SourceIndex(0)
-3 >Emitted(41, 46) Source(50, 57) + SourceIndex(0)
+1->Emitted(56, 17) Source(50, 3) + SourceIndex(0)
+2 >Emitted(56, 37) Source(50, 23) + SourceIndex(0)
+3 >Emitted(56, 46) Source(50, 57) + SourceIndex(0)
 ---
 >>>                    this.codeThing = codeThing;
 1->^^^^^^^^^^^^^^^^^^^^
@@ -670,11 +685,11 @@ sourceFile:recursiveClassReferenceTest.ts
 3 >                                  
 4 >                                     codeThing
 5 >                                              : Sample.Thing.ICodeThing
-1->Emitted(42, 21) Source(50, 23) + SourceIndex(0)
-2 >Emitted(42, 35) Source(50, 32) + SourceIndex(0)
-3 >Emitted(42, 38) Source(50, 23) + SourceIndex(0)
-4 >Emitted(42, 47) Source(50, 32) + SourceIndex(0)
-5 >Emitted(42, 48) Source(50, 57) + SourceIndex(0)
+1->Emitted(57, 21) Source(50, 23) + SourceIndex(0)
+2 >Emitted(57, 35) Source(50, 32) + SourceIndex(0)
+3 >Emitted(57, 38) Source(50, 23) + SourceIndex(0)
+4 >Emitted(57, 47) Source(50, 32) + SourceIndex(0)
+5 >Emitted(57, 48) Source(50, 57) + SourceIndex(0)
 ---
 >>>                    this.domNode = null;
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -687,11 +702,11 @@ sourceFile:recursiveClassReferenceTest.ts
 3 >                                :any = 
 4 >                                   null
 5 >                                       ;
-1 >Emitted(43, 21) Source(49, 11) + SourceIndex(0)
-2 >Emitted(43, 33) Source(49, 18) + SourceIndex(0)
-3 >Emitted(43, 36) Source(49, 25) + SourceIndex(0)
-4 >Emitted(43, 40) Source(49, 29) + SourceIndex(0)
-5 >Emitted(43, 41) Source(49, 30) + SourceIndex(0)
+1 >Emitted(58, 21) Source(49, 11) + SourceIndex(0)
+2 >Emitted(58, 33) Source(49, 18) + SourceIndex(0)
+3 >Emitted(58, 36) Source(49, 25) + SourceIndex(0)
+4 >Emitted(58, 40) Source(49, 29) + SourceIndex(0)
+5 >Emitted(58, 41) Source(49, 30) + SourceIndex(0)
 ---
 >>>                    // scenario 1
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -701,8 +716,8 @@ sourceFile:recursiveClassReferenceTest.ts
   >		constructor(private codeThing: Sample.Thing.ICodeThing) {
   >		    
 2 >                    // scenario 1
-1 >Emitted(44, 21) Source(51, 7) + SourceIndex(0)
-2 >Emitted(44, 34) Source(51, 20) + SourceIndex(0)
+1 >Emitted(59, 21) Source(51, 7) + SourceIndex(0)
+2 >Emitted(59, 34) Source(51, 20) + SourceIndex(0)
 ---
 >>>                    codeThing.addWidget("addWidget", this);
 1->^^^^^^^^^^^^^^^^^^^^
@@ -726,16 +741,16 @@ sourceFile:recursiveClassReferenceTest.ts
 8 >                                                     this
 9 >                                                         )
 10>                                                          ;
-1->Emitted(45, 21) Source(52, 7) + SourceIndex(0)
-2 >Emitted(45, 30) Source(52, 16) + SourceIndex(0)
-3 >Emitted(45, 31) Source(52, 17) + SourceIndex(0)
-4 >Emitted(45, 40) Source(52, 26) + SourceIndex(0)
-5 >Emitted(45, 41) Source(52, 27) + SourceIndex(0)
-6 >Emitted(45, 52) Source(52, 38) + SourceIndex(0)
-7 >Emitted(45, 54) Source(52, 40) + SourceIndex(0)
-8 >Emitted(45, 58) Source(52, 44) + SourceIndex(0)
-9 >Emitted(45, 59) Source(52, 45) + SourceIndex(0)
-10>Emitted(45, 60) Source(52, 46) + SourceIndex(0)
+1->Emitted(60, 21) Source(52, 7) + SourceIndex(0)
+2 >Emitted(60, 30) Source(52, 16) + SourceIndex(0)
+3 >Emitted(60, 31) Source(52, 17) + SourceIndex(0)
+4 >Emitted(60, 40) Source(52, 26) + SourceIndex(0)
+5 >Emitted(60, 41) Source(52, 27) + SourceIndex(0)
+6 >Emitted(60, 52) Source(52, 38) + SourceIndex(0)
+7 >Emitted(60, 54) Source(52, 40) + SourceIndex(0)
+8 >Emitted(60, 58) Source(52, 44) + SourceIndex(0)
+9 >Emitted(60, 59) Source(52, 45) + SourceIndex(0)
+10>Emitted(60, 60) Source(52, 46) + SourceIndex(0)
 ---
 >>>                }
 1 >^^^^^^^^^^^^^^^^
@@ -744,8 +759,8 @@ sourceFile:recursiveClassReferenceTest.ts
 1 >
   >		
 2 >                }
-1 >Emitted(46, 17) Source(53, 3) + SourceIndex(0)
-2 >Emitted(46, 18) Source(53, 4) + SourceIndex(0)
+1 >Emitted(61, 17) Source(53, 3) + SourceIndex(0)
+2 >Emitted(61, 18) Source(53, 4) + SourceIndex(0)
 ---
 >>>                FindWidget.prototype.gar = function (runner) { if (true) {
 1->^^^^^^^^^^^^^^^^
@@ -774,19 +789,19 @@ sourceFile:recursiveClassReferenceTest.ts
 11>                                                                       )
 12>                                                                         
 13>                                                                         {
-1->Emitted(47, 17) Source(47, 10) + SourceIndex(0)
-2 >Emitted(47, 41) Source(47, 13) + SourceIndex(0)
-3 >Emitted(47, 44) Source(47, 3) + SourceIndex(0)
-4 >Emitted(47, 54) Source(47, 14) + SourceIndex(0)
-5 >Emitted(47, 60) Source(47, 55) + SourceIndex(0)
-6 >Emitted(47, 64) Source(47, 59) + SourceIndex(0)
-7 >Emitted(47, 66) Source(47, 61) + SourceIndex(0)
-8 >Emitted(47, 67) Source(47, 62) + SourceIndex(0)
-9 >Emitted(47, 68) Source(47, 63) + SourceIndex(0)
-10>Emitted(47, 72) Source(47, 67) + SourceIndex(0)
-11>Emitted(47, 73) Source(47, 68) + SourceIndex(0)
-12>Emitted(47, 74) Source(47, 69) + SourceIndex(0)
-13>Emitted(47, 75) Source(47, 70) + SourceIndex(0)
+1->Emitted(62, 17) Source(47, 10) + SourceIndex(0)
+2 >Emitted(62, 41) Source(47, 13) + SourceIndex(0)
+3 >Emitted(62, 44) Source(47, 3) + SourceIndex(0)
+4 >Emitted(62, 54) Source(47, 14) + SourceIndex(0)
+5 >Emitted(62, 60) Source(47, 55) + SourceIndex(0)
+6 >Emitted(62, 64) Source(47, 59) + SourceIndex(0)
+7 >Emitted(62, 66) Source(47, 61) + SourceIndex(0)
+8 >Emitted(62, 67) Source(47, 62) + SourceIndex(0)
+9 >Emitted(62, 68) Source(47, 63) + SourceIndex(0)
+10>Emitted(62, 72) Source(47, 67) + SourceIndex(0)
+11>Emitted(62, 73) Source(47, 68) + SourceIndex(0)
+12>Emitted(62, 74) Source(47, 69) + SourceIndex(0)
+13>Emitted(62, 75) Source(47, 70) + SourceIndex(0)
 ---
 >>>                    return runner(this);
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -805,14 +820,14 @@ sourceFile:recursiveClassReferenceTest.ts
 6 >                                  this
 7 >                                      )
 8 >                                       ;
-1 >Emitted(48, 21) Source(47, 70) + SourceIndex(0)
-2 >Emitted(48, 27) Source(47, 76) + SourceIndex(0)
-3 >Emitted(48, 28) Source(47, 77) + SourceIndex(0)
-4 >Emitted(48, 34) Source(47, 83) + SourceIndex(0)
-5 >Emitted(48, 35) Source(47, 84) + SourceIndex(0)
-6 >Emitted(48, 39) Source(47, 88) + SourceIndex(0)
-7 >Emitted(48, 40) Source(47, 89) + SourceIndex(0)
-8 >Emitted(48, 41) Source(47, 90) + SourceIndex(0)
+1 >Emitted(63, 21) Source(47, 70) + SourceIndex(0)
+2 >Emitted(63, 27) Source(47, 76) + SourceIndex(0)
+3 >Emitted(63, 28) Source(47, 77) + SourceIndex(0)
+4 >Emitted(63, 34) Source(47, 83) + SourceIndex(0)
+5 >Emitted(63, 35) Source(47, 84) + SourceIndex(0)
+6 >Emitted(63, 39) Source(47, 88) + SourceIndex(0)
+7 >Emitted(63, 40) Source(47, 89) + SourceIndex(0)
+8 >Emitted(63, 41) Source(47, 90) + SourceIndex(0)
 ---
 >>>                } };
 1 >^^^^^^^^^^^^^^^^
@@ -824,10 +839,10 @@ sourceFile:recursiveClassReferenceTest.ts
 2 >                }
 3 >                 
 4 >                  }
-1 >Emitted(49, 17) Source(47, 90) + SourceIndex(0)
-2 >Emitted(49, 18) Source(47, 91) + SourceIndex(0)
-3 >Emitted(49, 19) Source(47, 91) + SourceIndex(0)
-4 >Emitted(49, 20) Source(47, 92) + SourceIndex(0)
+1 >Emitted(64, 17) Source(47, 90) + SourceIndex(0)
+2 >Emitted(64, 18) Source(47, 91) + SourceIndex(0)
+3 >Emitted(64, 19) Source(47, 91) + SourceIndex(0)
+4 >Emitted(64, 20) Source(47, 92) + SourceIndex(0)
 ---
 >>>                FindWidget.prototype.getDomNode = function () {
 1->^^^^^^^^^^^^^^^^
@@ -844,9 +859,9 @@ sourceFile:recursiveClassReferenceTest.ts
   >		public 
 2 >                getDomNode
 3 >                                               
-1->Emitted(50, 17) Source(55, 10) + SourceIndex(0)
-2 >Emitted(50, 48) Source(55, 20) + SourceIndex(0)
-3 >Emitted(50, 51) Source(55, 3) + SourceIndex(0)
+1->Emitted(65, 17) Source(55, 10) + SourceIndex(0)
+2 >Emitted(65, 48) Source(55, 20) + SourceIndex(0)
+3 >Emitted(65, 51) Source(55, 3) + SourceIndex(0)
 ---
 >>>                    return domNode;
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -860,11 +875,11 @@ sourceFile:recursiveClassReferenceTest.ts
 3 >                           
 4 >                           domNode
 5 >                                  ;
-1 >Emitted(51, 21) Source(56, 4) + SourceIndex(0)
-2 >Emitted(51, 27) Source(56, 10) + SourceIndex(0)
-3 >Emitted(51, 28) Source(56, 11) + SourceIndex(0)
-4 >Emitted(51, 35) Source(56, 18) + SourceIndex(0)
-5 >Emitted(51, 36) Source(56, 19) + SourceIndex(0)
+1 >Emitted(66, 21) Source(56, 4) + SourceIndex(0)
+2 >Emitted(66, 27) Source(56, 10) + SourceIndex(0)
+3 >Emitted(66, 28) Source(56, 11) + SourceIndex(0)
+4 >Emitted(66, 35) Source(56, 18) + SourceIndex(0)
+5 >Emitted(66, 36) Source(56, 19) + SourceIndex(0)
 ---
 >>>                };
 1 >^^^^^^^^^^^^^^^^
@@ -873,8 +888,8 @@ sourceFile:recursiveClassReferenceTest.ts
 1 >
   >		
 2 >                }
-1 >Emitted(52, 17) Source(57, 3) + SourceIndex(0)
-2 >Emitted(52, 18) Source(57, 4) + SourceIndex(0)
+1 >Emitted(67, 17) Source(57, 3) + SourceIndex(0)
+2 >Emitted(67, 18) Source(57, 4) + SourceIndex(0)
 ---
 >>>                FindWidget.prototype.destroy = function () {
 1->^^^^^^^^^^^^^^^^
@@ -885,21 +900,22 @@ sourceFile:recursiveClassReferenceTest.ts
   >		public 
 2 >                destroy
 3 >                                            
-1->Emitted(53, 17) Source(59, 10) + SourceIndex(0)
-2 >Emitted(53, 45) Source(59, 17) + SourceIndex(0)
-3 >Emitted(53, 48) Source(59, 3) + SourceIndex(0)
+1->Emitted(68, 17) Source(59, 10) + SourceIndex(0)
+2 >Emitted(68, 45) Source(59, 17) + SourceIndex(0)
+3 >Emitted(68, 48) Source(59, 3) + SourceIndex(0)
 ---
 >>>                };
 1 >^^^^^^^^^^^^^^^^
 2 >                ^
-3 >                 ^^^^^^^^^^^^^^^^^^->
+3 >                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >public destroy() {
   >
   >		
 2 >                }
-1 >Emitted(54, 17) Source(61, 3) + SourceIndex(0)
-2 >Emitted(54, 18) Source(61, 4) + SourceIndex(0)
+1 >Emitted(69, 17) Source(61, 3) + SourceIndex(0)
+2 >Emitted(69, 18) Source(61, 4) + SourceIndex(0)
 ---
+>>>                __names(FindWidget.prototype, ["gar", "getDomNode", "destroy"]);
 >>>                return FindWidget;
 1->^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^^^^^
@@ -907,8 +923,8 @@ sourceFile:recursiveClassReferenceTest.ts
   >
   >	
 2 >                }
-1->Emitted(55, 17) Source(63, 2) + SourceIndex(0)
-2 >Emitted(55, 34) Source(63, 3) + SourceIndex(0)
+1->Emitted(71, 17) Source(63, 2) + SourceIndex(0)
+2 >Emitted(71, 34) Source(63, 3) + SourceIndex(0)
 ---
 >>>            }());
 1 >^^^^^^^^^^^^
@@ -938,10 +954,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >             		}
   >             
   >             	}
-1 >Emitted(56, 13) Source(63, 2) + SourceIndex(0)
-2 >Emitted(56, 14) Source(63, 3) + SourceIndex(0)
-3 >Emitted(56, 14) Source(45, 2) + SourceIndex(0)
-4 >Emitted(56, 18) Source(63, 3) + SourceIndex(0)
+1 >Emitted(72, 13) Source(63, 2) + SourceIndex(0)
+2 >Emitted(72, 14) Source(63, 3) + SourceIndex(0)
+3 >Emitted(72, 14) Source(45, 2) + SourceIndex(0)
+4 >Emitted(72, 18) Source(63, 3) + SourceIndex(0)
 ---
 >>>            Widgets.FindWidget = FindWidget;
 1->^^^^^^^^^^^^
@@ -971,10 +987,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >                              
   >                              	}
 4 >                                           
-1->Emitted(57, 13) Source(45, 15) + SourceIndex(0)
-2 >Emitted(57, 31) Source(45, 25) + SourceIndex(0)
-3 >Emitted(57, 44) Source(63, 3) + SourceIndex(0)
-4 >Emitted(57, 45) Source(63, 3) + SourceIndex(0)
+1->Emitted(73, 13) Source(45, 15) + SourceIndex(0)
+2 >Emitted(73, 31) Source(45, 25) + SourceIndex(0)
+3 >Emitted(73, 44) Source(63, 3) + SourceIndex(0)
+4 >Emitted(73, 45) Source(63, 3) + SourceIndex(0)
 ---
 >>>        })(Widgets = Thing.Widgets || (Thing.Widgets = {}));
 1->^^^^^^^^
@@ -1016,15 +1032,15 @@ sourceFile:recursiveClassReferenceTest.ts
   >                                                    
   >                                                    	}
   >                                                    }
-1->Emitted(58, 9) Source(64, 1) + SourceIndex(0)
-2 >Emitted(58, 10) Source(64, 2) + SourceIndex(0)
-3 >Emitted(58, 12) Source(44, 21) + SourceIndex(0)
-4 >Emitted(58, 19) Source(44, 28) + SourceIndex(0)
-5 >Emitted(58, 22) Source(44, 21) + SourceIndex(0)
-6 >Emitted(58, 35) Source(44, 28) + SourceIndex(0)
-7 >Emitted(58, 40) Source(44, 21) + SourceIndex(0)
-8 >Emitted(58, 53) Source(44, 28) + SourceIndex(0)
-9 >Emitted(58, 61) Source(64, 2) + SourceIndex(0)
+1->Emitted(74, 9) Source(64, 1) + SourceIndex(0)
+2 >Emitted(74, 10) Source(64, 2) + SourceIndex(0)
+3 >Emitted(74, 12) Source(44, 21) + SourceIndex(0)
+4 >Emitted(74, 19) Source(44, 28) + SourceIndex(0)
+5 >Emitted(74, 22) Source(44, 21) + SourceIndex(0)
+6 >Emitted(74, 35) Source(44, 28) + SourceIndex(0)
+7 >Emitted(74, 40) Source(44, 21) + SourceIndex(0)
+8 >Emitted(74, 53) Source(44, 28) + SourceIndex(0)
+9 >Emitted(74, 61) Source(64, 2) + SourceIndex(0)
 ---
 >>>    })(Thing = Sample.Thing || (Sample.Thing = {}));
 1 >^^^^
@@ -1065,15 +1081,15 @@ sourceFile:recursiveClassReferenceTest.ts
   >                                            
   >                                            	}
   >                                            }
-1 >Emitted(59, 5) Source(64, 1) + SourceIndex(0)
-2 >Emitted(59, 6) Source(64, 2) + SourceIndex(0)
-3 >Emitted(59, 8) Source(44, 15) + SourceIndex(0)
-4 >Emitted(59, 13) Source(44, 20) + SourceIndex(0)
-5 >Emitted(59, 16) Source(44, 15) + SourceIndex(0)
-6 >Emitted(59, 28) Source(44, 20) + SourceIndex(0)
-7 >Emitted(59, 33) Source(44, 15) + SourceIndex(0)
-8 >Emitted(59, 45) Source(44, 20) + SourceIndex(0)
-9 >Emitted(59, 53) Source(64, 2) + SourceIndex(0)
+1 >Emitted(75, 5) Source(64, 1) + SourceIndex(0)
+2 >Emitted(75, 6) Source(64, 2) + SourceIndex(0)
+3 >Emitted(75, 8) Source(44, 15) + SourceIndex(0)
+4 >Emitted(75, 13) Source(44, 20) + SourceIndex(0)
+5 >Emitted(75, 16) Source(44, 15) + SourceIndex(0)
+6 >Emitted(75, 28) Source(44, 20) + SourceIndex(0)
+7 >Emitted(75, 33) Source(44, 15) + SourceIndex(0)
+8 >Emitted(75, 45) Source(44, 20) + SourceIndex(0)
+9 >Emitted(75, 53) Source(64, 2) + SourceIndex(0)
 ---
 >>>})(Sample || (Sample = {}));
 1 >
@@ -1111,13 +1127,13 @@ sourceFile:recursiveClassReferenceTest.ts
   >                    
   >                    	}
   >                    }
-1 >Emitted(60, 1) Source(64, 1) + SourceIndex(0)
-2 >Emitted(60, 2) Source(64, 2) + SourceIndex(0)
-3 >Emitted(60, 4) Source(44, 8) + SourceIndex(0)
-4 >Emitted(60, 10) Source(44, 14) + SourceIndex(0)
-5 >Emitted(60, 15) Source(44, 8) + SourceIndex(0)
-6 >Emitted(60, 21) Source(44, 14) + SourceIndex(0)
-7 >Emitted(60, 29) Source(64, 2) + SourceIndex(0)
+1 >Emitted(76, 1) Source(64, 1) + SourceIndex(0)
+2 >Emitted(76, 2) Source(64, 2) + SourceIndex(0)
+3 >Emitted(76, 4) Source(44, 8) + SourceIndex(0)
+4 >Emitted(76, 10) Source(44, 14) + SourceIndex(0)
+5 >Emitted(76, 15) Source(44, 8) + SourceIndex(0)
+6 >Emitted(76, 21) Source(44, 14) + SourceIndex(0)
+7 >Emitted(76, 29) Source(64, 2) + SourceIndex(0)
 ---
 >>>var AbstractMode = (function () {
 1->
@@ -1126,13 +1142,13 @@ sourceFile:recursiveClassReferenceTest.ts
   >
   >interface IMode { getInitialState(): IState;} 
   >
-1->Emitted(61, 1) Source(67, 1) + SourceIndex(0)
+1->Emitted(77, 1) Source(67, 1) + SourceIndex(0)
 ---
 >>>    function AbstractMode() {
 1->^^^^
 2 >    ^^->
 1->
-1->Emitted(62, 5) Source(67, 1) + SourceIndex(0)
+1->Emitted(78, 5) Source(67, 1) + SourceIndex(0)
 ---
 >>>    }
 1->^^^^
@@ -1140,8 +1156,8 @@ sourceFile:recursiveClassReferenceTest.ts
 3 >     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->class AbstractMode implements IMode { public getInitialState(): IState { return null;} 
 2 >    }
-1->Emitted(63, 5) Source(67, 88) + SourceIndex(0)
-2 >Emitted(63, 6) Source(67, 89) + SourceIndex(0)
+1->Emitted(79, 5) Source(67, 88) + SourceIndex(0)
+2 >Emitted(79, 6) Source(67, 89) + SourceIndex(0)
 ---
 >>>    AbstractMode.prototype.getInitialState = function () { return null; };
 1->^^^^
@@ -1164,24 +1180,25 @@ sourceFile:recursiveClassReferenceTest.ts
 8 >                                                                      ;
 9 >                                                                       
 10>                                                                        }
-1->Emitted(64, 5) Source(67, 46) + SourceIndex(0)
-2 >Emitted(64, 43) Source(67, 61) + SourceIndex(0)
-3 >Emitted(64, 46) Source(67, 39) + SourceIndex(0)
-4 >Emitted(64, 60) Source(67, 74) + SourceIndex(0)
-5 >Emitted(64, 66) Source(67, 80) + SourceIndex(0)
-6 >Emitted(64, 67) Source(67, 81) + SourceIndex(0)
-7 >Emitted(64, 71) Source(67, 85) + SourceIndex(0)
-8 >Emitted(64, 72) Source(67, 86) + SourceIndex(0)
-9 >Emitted(64, 73) Source(67, 86) + SourceIndex(0)
-10>Emitted(64, 74) Source(67, 87) + SourceIndex(0)
----
+1->Emitted(80, 5) Source(67, 46) + SourceIndex(0)
+2 >Emitted(80, 43) Source(67, 61) + SourceIndex(0)
+3 >Emitted(80, 46) Source(67, 39) + SourceIndex(0)
+4 >Emitted(80, 60) Source(67, 74) + SourceIndex(0)
+5 >Emitted(80, 66) Source(67, 80) + SourceIndex(0)
+6 >Emitted(80, 67) Source(67, 81) + SourceIndex(0)
+7 >Emitted(80, 71) Source(67, 85) + SourceIndex(0)
+8 >Emitted(80, 72) Source(67, 86) + SourceIndex(0)
+9 >Emitted(80, 73) Source(67, 86) + SourceIndex(0)
+10>Emitted(80, 74) Source(67, 87) + SourceIndex(0)
+---
+>>>    __names(AbstractMode.prototype, ["getInitialState"]);
 >>>    return AbstractMode;
 1 >^^^^
 2 >    ^^^^^^^^^^^^^^^^^^^
 1 > 
 2 >    }
-1 >Emitted(65, 5) Source(67, 88) + SourceIndex(0)
-2 >Emitted(65, 24) Source(67, 89) + SourceIndex(0)
+1 >Emitted(82, 5) Source(67, 88) + SourceIndex(0)
+2 >Emitted(82, 24) Source(67, 89) + SourceIndex(0)
 ---
 >>>}());
 1 >
@@ -1193,10 +1210,10 @@ sourceFile:recursiveClassReferenceTest.ts
 2 >}
 3 > 
 4 > class AbstractMode implements IMode { public getInitialState(): IState { return null;} }
-1 >Emitted(66, 1) Source(67, 88) + SourceIndex(0)
-2 >Emitted(66, 2) Source(67, 89) + SourceIndex(0)
-3 >Emitted(66, 2) Source(67, 1) + SourceIndex(0)
-4 >Emitted(66, 6) Source(67, 89) + SourceIndex(0)
+1 >Emitted(83, 1) Source(67, 88) + SourceIndex(0)
+2 >Emitted(83, 2) Source(67, 89) + SourceIndex(0)
+3 >Emitted(83, 2) Source(67, 1) + SourceIndex(0)
+4 >Emitted(83, 6) Source(67, 89) + SourceIndex(0)
 ---
 >>>(function (Sample) {
 1->
@@ -1214,9 +1231,9 @@ sourceFile:recursiveClassReferenceTest.ts
   >
 2 >module 
 3 >           Sample
-1->Emitted(67, 1) Source(76, 1) + SourceIndex(0)
-2 >Emitted(67, 12) Source(76, 8) + SourceIndex(0)
-3 >Emitted(67, 18) Source(76, 14) + SourceIndex(0)
+1->Emitted(84, 1) Source(76, 1) + SourceIndex(0)
+2 >Emitted(84, 12) Source(76, 8) + SourceIndex(0)
+3 >Emitted(84, 18) Source(76, 14) + SourceIndex(0)
 ---
 >>>    var Thing;
 1 >^^^^
@@ -1252,10 +1269,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >             
   >             	}
   >             }
-1 >Emitted(68, 5) Source(76, 15) + SourceIndex(0)
-2 >Emitted(68, 9) Source(76, 15) + SourceIndex(0)
-3 >Emitted(68, 14) Source(76, 20) + SourceIndex(0)
-4 >Emitted(68, 15) Source(100, 2) + SourceIndex(0)
+1 >Emitted(85, 5) Source(76, 15) + SourceIndex(0)
+2 >Emitted(85, 9) Source(76, 15) + SourceIndex(0)
+3 >Emitted(85, 14) Source(76, 20) + SourceIndex(0)
+4 >Emitted(85, 15) Source(100, 2) + SourceIndex(0)
 ---
 >>>    (function (Thing) {
 1->^^^^
@@ -1265,9 +1282,9 @@ sourceFile:recursiveClassReferenceTest.ts
 1->
 2 >    
 3 >               Thing
-1->Emitted(69, 5) Source(76, 15) + SourceIndex(0)
-2 >Emitted(69, 16) Source(76, 15) + SourceIndex(0)
-3 >Emitted(69, 21) Source(76, 20) + SourceIndex(0)
+1->Emitted(86, 5) Source(76, 15) + SourceIndex(0)
+2 >Emitted(86, 16) Source(76, 15) + SourceIndex(0)
+3 >Emitted(86, 21) Source(76, 20) + SourceIndex(0)
 ---
 >>>        var Languages;
 1->^^^^^^^^
@@ -1303,10 +1320,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >                     
   >                     	}
   >                     }
-1->Emitted(70, 9) Source(76, 21) + SourceIndex(0)
-2 >Emitted(70, 13) Source(76, 21) + SourceIndex(0)
-3 >Emitted(70, 22) Source(76, 30) + SourceIndex(0)
-4 >Emitted(70, 23) Source(100, 2) + SourceIndex(0)
+1->Emitted(87, 9) Source(76, 21) + SourceIndex(0)
+2 >Emitted(87, 13) Source(76, 21) + SourceIndex(0)
+3 >Emitted(87, 22) Source(76, 30) + SourceIndex(0)
+4 >Emitted(87, 23) Source(100, 2) + SourceIndex(0)
 ---
 >>>        (function (Languages) {
 1->^^^^^^^^
@@ -1315,9 +1332,9 @@ sourceFile:recursiveClassReferenceTest.ts
 1->
 2 >        
 3 >                   Languages
-1->Emitted(71, 9) Source(76, 21) + SourceIndex(0)
-2 >Emitted(71, 20) Source(76, 21) + SourceIndex(0)
-3 >Emitted(71, 29) Source(76, 30) + SourceIndex(0)
+1->Emitted(88, 9) Source(76, 21) + SourceIndex(0)
+2 >Emitted(88, 20) Source(76, 21) + SourceIndex(0)
+3 >Emitted(88, 29) Source(76, 30) + SourceIndex(0)
 ---
 >>>            var PlainText;
 1 >^^^^^^^^^^^^
@@ -1353,10 +1370,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >                         
   >                         	}
   >                         }
-1 >Emitted(72, 13) Source(76, 31) + SourceIndex(0)
-2 >Emitted(72, 17) Source(76, 31) + SourceIndex(0)
-3 >Emitted(72, 26) Source(76, 40) + SourceIndex(0)
-4 >Emitted(72, 27) Source(100, 2) + SourceIndex(0)
+1 >Emitted(89, 13) Source(76, 31) + SourceIndex(0)
+2 >Emitted(89, 17) Source(76, 31) + SourceIndex(0)
+3 >Emitted(89, 26) Source(76, 40) + SourceIndex(0)
+4 >Emitted(89, 27) Source(100, 2) + SourceIndex(0)
 ---
 >>>            (function (PlainText) {
 1->^^^^^^^^^^^^
@@ -1366,9 +1383,9 @@ sourceFile:recursiveClassReferenceTest.ts
 1->
 2 >            
 3 >                       PlainText
-1->Emitted(73, 13) Source(76, 31) + SourceIndex(0)
-2 >Emitted(73, 24) Source(76, 31) + SourceIndex(0)
-3 >Emitted(73, 33) Source(76, 40) + SourceIndex(0)
+1->Emitted(90, 13) Source(76, 31) + SourceIndex(0)
+2 >Emitted(90, 24) Source(76, 31) + SourceIndex(0)
+3 >Emitted(90, 33) Source(76, 40) + SourceIndex(0)
 ---
 >>>                var State = (function () {
 1->^^^^^^^^^^^^^^^^
@@ -1376,7 +1393,7 @@ sourceFile:recursiveClassReferenceTest.ts
 1-> {
   >	
   >	
-1->Emitted(74, 17) Source(78, 2) + SourceIndex(0)
+1->Emitted(91, 17) Source(78, 2) + SourceIndex(0)
 ---
 >>>                    function State(mode) {
 1->^^^^^^^^^^^^^^^^^^^^
@@ -1387,9 +1404,9 @@ sourceFile:recursiveClassReferenceTest.ts
   >        
 2 >                    constructor(private 
 3 >                                   mode: IMode
-1->Emitted(75, 21) Source(79, 9) + SourceIndex(0)
-2 >Emitted(75, 36) Source(79, 29) + SourceIndex(0)
-3 >Emitted(75, 40) Source(79, 40) + SourceIndex(0)
+1->Emitted(92, 21) Source(79, 9) + SourceIndex(0)
+2 >Emitted(92, 36) Source(79, 29) + SourceIndex(0)
+3 >Emitted(92, 40) Source(79, 40) + SourceIndex(0)
 ---
 >>>                        this.mode = mode;
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1402,11 +1419,11 @@ sourceFile:recursiveClassReferenceTest.ts
 3 >                                 
 4 >                                    mode
 5 >                                        : IMode
-1->Emitted(76, 25) Source(79, 29) + SourceIndex(0)
-2 >Emitted(76, 34) Source(79, 33) + SourceIndex(0)
-3 >Emitted(76, 37) Source(79, 29) + SourceIndex(0)
-4 >Emitted(76, 41) Source(79, 33) + SourceIndex(0)
-5 >Emitted(76, 42) Source(79, 40) + SourceIndex(0)
+1->Emitted(93, 25) Source(79, 29) + SourceIndex(0)
+2 >Emitted(93, 34) Source(79, 33) + SourceIndex(0)
+3 >Emitted(93, 37) Source(79, 29) + SourceIndex(0)
+4 >Emitted(93, 41) Source(79, 33) + SourceIndex(0)
+5 >Emitted(93, 42) Source(79, 40) + SourceIndex(0)
 ---
 >>>                    }
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -1414,8 +1431,8 @@ sourceFile:recursiveClassReferenceTest.ts
 3 >                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >) { 
 2 >                    }
-1 >Emitted(77, 21) Source(79, 44) + SourceIndex(0)
-2 >Emitted(77, 22) Source(79, 45) + SourceIndex(0)
+1 >Emitted(94, 21) Source(79, 44) + SourceIndex(0)
+2 >Emitted(94, 22) Source(79, 45) + SourceIndex(0)
 ---
 >>>                    State.prototype.clone = function () {
 1->^^^^^^^^^^^^^^^^^^^^
@@ -1425,9 +1442,9 @@ sourceFile:recursiveClassReferenceTest.ts
   >		public 
 2 >                    clone
 3 >                                         
-1->Emitted(78, 21) Source(80, 10) + SourceIndex(0)
-2 >Emitted(78, 42) Source(80, 15) + SourceIndex(0)
-3 >Emitted(78, 45) Source(80, 3) + SourceIndex(0)
+1->Emitted(95, 21) Source(80, 10) + SourceIndex(0)
+2 >Emitted(95, 42) Source(80, 15) + SourceIndex(0)
+3 >Emitted(95, 45) Source(80, 3) + SourceIndex(0)
 ---
 >>>                        return this;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1441,11 +1458,11 @@ sourceFile:recursiveClassReferenceTest.ts
 3 >                               
 4 >                               this
 5 >                                   ;
-1 >Emitted(79, 25) Source(81, 4) + SourceIndex(0)
-2 >Emitted(79, 31) Source(81, 10) + SourceIndex(0)
-3 >Emitted(79, 32) Source(81, 11) + SourceIndex(0)
-4 >Emitted(79, 36) Source(81, 15) + SourceIndex(0)
-5 >Emitted(79, 37) Source(81, 16) + SourceIndex(0)
+1 >Emitted(96, 25) Source(81, 4) + SourceIndex(0)
+2 >Emitted(96, 31) Source(81, 10) + SourceIndex(0)
+3 >Emitted(96, 32) Source(81, 11) + SourceIndex(0)
+4 >Emitted(96, 36) Source(81, 15) + SourceIndex(0)
+5 >Emitted(96, 37) Source(81, 16) + SourceIndex(0)
 ---
 >>>                    };
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -1454,8 +1471,8 @@ sourceFile:recursiveClassReferenceTest.ts
 1 >
   >		
 2 >                    }
-1 >Emitted(80, 21) Source(82, 3) + SourceIndex(0)
-2 >Emitted(80, 22) Source(82, 4) + SourceIndex(0)
+1 >Emitted(97, 21) Source(82, 3) + SourceIndex(0)
+2 >Emitted(97, 22) Source(82, 4) + SourceIndex(0)
 ---
 >>>                    State.prototype.equals = function (other) {
 1->^^^^^^^^^^^^^^^^^^^^
@@ -1470,11 +1487,11 @@ sourceFile:recursiveClassReferenceTest.ts
 3 >                                          
 4 >                                             public equals(
 5 >                                                       other:IState
-1->Emitted(81, 21) Source(84, 10) + SourceIndex(0)
-2 >Emitted(81, 43) Source(84, 16) + SourceIndex(0)
-3 >Emitted(81, 46) Source(84, 3) + SourceIndex(0)
-4 >Emitted(81, 56) Source(84, 17) + SourceIndex(0)
-5 >Emitted(81, 61) Source(84, 29) + SourceIndex(0)
+1->Emitted(98, 21) Source(84, 10) + SourceIndex(0)
+2 >Emitted(98, 43) Source(84, 16) + SourceIndex(0)
+3 >Emitted(98, 46) Source(84, 3) + SourceIndex(0)
+4 >Emitted(98, 56) Source(84, 17) + SourceIndex(0)
+5 >Emitted(98, 61) Source(84, 29) + SourceIndex(0)
 ---
 >>>                        return this === other;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1492,13 +1509,13 @@ sourceFile:recursiveClassReferenceTest.ts
 5 >                                    === 
 6 >                                        other
 7 >                                             ;
-1 >Emitted(82, 25) Source(85, 4) + SourceIndex(0)
-2 >Emitted(82, 31) Source(85, 10) + SourceIndex(0)
-3 >Emitted(82, 32) Source(85, 11) + SourceIndex(0)
-4 >Emitted(82, 36) Source(85, 15) + SourceIndex(0)
-5 >Emitted(82, 41) Source(85, 20) + SourceIndex(0)
-6 >Emitted(82, 46) Source(85, 25) + SourceIndex(0)
-7 >Emitted(82, 47) Source(85, 26) + SourceIndex(0)
+1 >Emitted(99, 25) Source(85, 4) + SourceIndex(0)
+2 >Emitted(99, 31) Source(85, 10) + SourceIndex(0)
+3 >Emitted(99, 32) Source(85, 11) + SourceIndex(0)
+4 >Emitted(99, 36) Source(85, 15) + SourceIndex(0)
+5 >Emitted(99, 41) Source(85, 20) + SourceIndex(0)
+6 >Emitted(99, 46) Source(85, 25) + SourceIndex(0)
+7 >Emitted(99, 47) Source(85, 26) + SourceIndex(0)
 ---
 >>>                    };
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -1507,8 +1524,8 @@ sourceFile:recursiveClassReferenceTest.ts
 1 >
   >		
 2 >                    }
-1 >Emitted(83, 21) Source(86, 3) + SourceIndex(0)
-2 >Emitted(83, 22) Source(86, 4) + SourceIndex(0)
+1 >Emitted(100, 21) Source(86, 3) + SourceIndex(0)
+2 >Emitted(100, 22) Source(86, 4) + SourceIndex(0)
 ---
 >>>                    State.prototype.getMode = function () { return mode; };
 1->^^^^^^^^^^^^^^^^^^^^
@@ -1521,6 +1538,7 @@ sourceFile:recursiveClassReferenceTest.ts
 8 >                                                                       ^
 9 >                                                                        ^
 10>                                                                         ^
+11>                                                                          ^^^^->
 1->
   >		
   >		public 
@@ -1533,25 +1551,26 @@ sourceFile:recursiveClassReferenceTest.ts
 8 >                                                                       ;
 9 >                                                                         
 10>                                                                         }
-1->Emitted(84, 21) Source(88, 10) + SourceIndex(0)
-2 >Emitted(84, 44) Source(88, 17) + SourceIndex(0)
-3 >Emitted(84, 47) Source(88, 3) + SourceIndex(0)
-4 >Emitted(84, 61) Source(88, 29) + SourceIndex(0)
-5 >Emitted(84, 67) Source(88, 35) + SourceIndex(0)
-6 >Emitted(84, 68) Source(88, 36) + SourceIndex(0)
-7 >Emitted(84, 72) Source(88, 40) + SourceIndex(0)
-8 >Emitted(84, 73) Source(88, 41) + SourceIndex(0)
-9 >Emitted(84, 74) Source(88, 42) + SourceIndex(0)
-10>Emitted(84, 75) Source(88, 43) + SourceIndex(0)
----
+1->Emitted(101, 21) Source(88, 10) + SourceIndex(0)
+2 >Emitted(101, 44) Source(88, 17) + SourceIndex(0)
+3 >Emitted(101, 47) Source(88, 3) + SourceIndex(0)
+4 >Emitted(101, 61) Source(88, 29) + SourceIndex(0)
+5 >Emitted(101, 67) Source(88, 35) + SourceIndex(0)
+6 >Emitted(101, 68) Source(88, 36) + SourceIndex(0)
+7 >Emitted(101, 72) Source(88, 40) + SourceIndex(0)
+8 >Emitted(101, 73) Source(88, 41) + SourceIndex(0)
+9 >Emitted(101, 74) Source(88, 42) + SourceIndex(0)
+10>Emitted(101, 75) Source(88, 43) + SourceIndex(0)
+---
+>>>                    __names(State.prototype, ["clone", "equals", "getMode"]);
 >>>                    return State;
-1 >^^^^^^^^^^^^^^^^^^^^
+1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^^
-1 >
+1->
   >	
 2 >                    }
-1 >Emitted(85, 21) Source(89, 2) + SourceIndex(0)
-2 >Emitted(85, 33) Source(89, 3) + SourceIndex(0)
+1->Emitted(103, 21) Source(89, 2) + SourceIndex(0)
+2 >Emitted(103, 33) Source(89, 3) + SourceIndex(0)
 ---
 >>>                }());
 1 >^^^^^^^^^^^^^^^^
@@ -1574,10 +1593,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >                 		
   >                 		public getMode(): IMode { return mode; }
   >                 	}
-1 >Emitted(86, 17) Source(89, 2) + SourceIndex(0)
-2 >Emitted(86, 18) Source(89, 3) + SourceIndex(0)
-3 >Emitted(86, 18) Source(78, 2) + SourceIndex(0)
-4 >Emitted(86, 22) Source(89, 3) + SourceIndex(0)
+1 >Emitted(104, 17) Source(89, 2) + SourceIndex(0)
+2 >Emitted(104, 18) Source(89, 3) + SourceIndex(0)
+3 >Emitted(104, 18) Source(78, 2) + SourceIndex(0)
+4 >Emitted(104, 22) Source(89, 3) + SourceIndex(0)
 ---
 >>>                PlainText.State = State;
 1->^^^^^^^^^^^^^^^^
@@ -1600,10 +1619,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >                               		public getMode(): IMode { return mode; }
   >                               	}
 4 >                                       
-1->Emitted(87, 17) Source(78, 15) + SourceIndex(0)
-2 >Emitted(87, 32) Source(78, 20) + SourceIndex(0)
-3 >Emitted(87, 40) Source(89, 3) + SourceIndex(0)
-4 >Emitted(87, 41) Source(89, 3) + SourceIndex(0)
+1->Emitted(105, 17) Source(78, 15) + SourceIndex(0)
+2 >Emitted(105, 32) Source(78, 20) + SourceIndex(0)
+3 >Emitted(105, 40) Source(89, 3) + SourceIndex(0)
+4 >Emitted(105, 41) Source(89, 3) + SourceIndex(0)
 ---
 >>>                var Mode = (function (_super) {
 1->^^^^^^^^^^^^^^^^
@@ -1611,21 +1630,21 @@ sourceFile:recursiveClassReferenceTest.ts
 1->
   >	
   >	
-1->Emitted(88, 17) Source(91, 2) + SourceIndex(0)
+1->Emitted(106, 17) Source(91, 2) + SourceIndex(0)
 ---
 >>>                    __extends(Mode, _super);
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^^^^^^^^^^^^^^
 1->export class Mode extends 
 2 >                    AbstractMode
-1->Emitted(89, 21) Source(91, 28) + SourceIndex(0)
-2 >Emitted(89, 45) Source(91, 40) + SourceIndex(0)
+1->Emitted(107, 21) Source(91, 28) + SourceIndex(0)
+2 >Emitted(107, 45) Source(91, 40) + SourceIndex(0)
 ---
 >>>                    function Mode() {
 1 >^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
-1 >Emitted(90, 21) Source(91, 2) + SourceIndex(0)
+1 >Emitted(108, 21) Source(91, 2) + SourceIndex(0)
 ---
 >>>                        return _super !== null && _super.apply(this, arguments) || this;
 >>>                    }
@@ -1642,8 +1661,8 @@ sourceFile:recursiveClassReferenceTest.ts
   >
   >	
 2 >                    }
-1->Emitted(92, 21) Source(99, 2) + SourceIndex(0)
-2 >Emitted(92, 22) Source(99, 3) + SourceIndex(0)
+1->Emitted(110, 21) Source(99, 2) + SourceIndex(0)
+2 >Emitted(110, 22) Source(99, 3) + SourceIndex(0)
 ---
 >>>                    // scenario 2
 1->^^^^^^^^^^^^^^^^^^^^
@@ -1651,8 +1670,8 @@ sourceFile:recursiveClassReferenceTest.ts
 3 >                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->
 2 >                    // scenario 2
-1->Emitted(93, 21) Source(93, 3) + SourceIndex(0)
-2 >Emitted(93, 34) Source(93, 16) + SourceIndex(0)
+1->Emitted(111, 21) Source(93, 3) + SourceIndex(0)
+2 >Emitted(111, 34) Source(93, 16) + SourceIndex(0)
 ---
 >>>                    Mode.prototype.getInitialState = function () {
 1->^^^^^^^^^^^^^^^^^^^^
@@ -1662,9 +1681,9 @@ sourceFile:recursiveClassReferenceTest.ts
   >		public 
 2 >                    getInitialState
 3 >                                                  
-1->Emitted(94, 21) Source(94, 10) + SourceIndex(0)
-2 >Emitted(94, 51) Source(94, 25) + SourceIndex(0)
-3 >Emitted(94, 54) Source(94, 3) + SourceIndex(0)
+1->Emitted(112, 21) Source(94, 10) + SourceIndex(0)
+2 >Emitted(112, 51) Source(94, 25) + SourceIndex(0)
+3 >Emitted(112, 54) Source(94, 3) + SourceIndex(0)
 ---
 >>>                        return new State(self);
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1686,26 +1705,27 @@ sourceFile:recursiveClassReferenceTest.ts
 7 >                                         self
 8 >                                             )
 9 >                                              ;
-1 >Emitted(95, 25) Source(95, 4) + SourceIndex(0)
-2 >Emitted(95, 31) Source(95, 10) + SourceIndex(0)
-3 >Emitted(95, 32) Source(95, 11) + SourceIndex(0)
-4 >Emitted(95, 36) Source(95, 15) + SourceIndex(0)
-5 >Emitted(95, 41) Source(95, 20) + SourceIndex(0)
-6 >Emitted(95, 42) Source(95, 21) + SourceIndex(0)
-7 >Emitted(95, 46) Source(95, 25) + SourceIndex(0)
-8 >Emitted(95, 47) Source(95, 26) + SourceIndex(0)
-9 >Emitted(95, 48) Source(95, 27) + SourceIndex(0)
+1 >Emitted(113, 25) Source(95, 4) + SourceIndex(0)
+2 >Emitted(113, 31) Source(95, 10) + SourceIndex(0)
+3 >Emitted(113, 32) Source(95, 11) + SourceIndex(0)
+4 >Emitted(113, 36) Source(95, 15) + SourceIndex(0)
+5 >Emitted(113, 41) Source(95, 20) + SourceIndex(0)
+6 >Emitted(113, 42) Source(95, 21) + SourceIndex(0)
+7 >Emitted(113, 46) Source(95, 25) + SourceIndex(0)
+8 >Emitted(113, 47) Source(95, 26) + SourceIndex(0)
+9 >Emitted(113, 48) Source(95, 27) + SourceIndex(0)
 ---
 >>>                    };
 1 >^^^^^^^^^^^^^^^^^^^^
 2 >                    ^
-3 >                     ^^^^^^^^^^^^->
+3 >                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >		
 2 >                    }
-1 >Emitted(96, 21) Source(96, 3) + SourceIndex(0)
-2 >Emitted(96, 22) Source(96, 4) + SourceIndex(0)
+1 >Emitted(114, 21) Source(96, 3) + SourceIndex(0)
+2 >Emitted(114, 22) Source(96, 4) + SourceIndex(0)
 ---
+>>>                    __names(Mode.prototype, ["getInitialState"]);
 >>>                    return Mode;
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^
@@ -1715,8 +1735,8 @@ sourceFile:recursiveClassReferenceTest.ts
   >
   >	
 2 >                    }
-1->Emitted(97, 21) Source(99, 2) + SourceIndex(0)
-2 >Emitted(97, 32) Source(99, 3) + SourceIndex(0)
+1->Emitted(116, 21) Source(99, 2) + SourceIndex(0)
+2 >Emitted(116, 32) Source(99, 3) + SourceIndex(0)
 ---
 >>>                }(AbstractMode));
 1->^^^^^^^^^^^^^^^^
@@ -1740,12 +1760,12 @@ sourceFile:recursiveClassReferenceTest.ts
   >                              
   >                              
   >                              	}
-1->Emitted(98, 17) Source(99, 2) + SourceIndex(0)
-2 >Emitted(98, 18) Source(99, 3) + SourceIndex(0)
-3 >Emitted(98, 18) Source(91, 2) + SourceIndex(0)
-4 >Emitted(98, 19) Source(91, 28) + SourceIndex(0)
-5 >Emitted(98, 31) Source(91, 40) + SourceIndex(0)
-6 >Emitted(98, 34) Source(99, 3) + SourceIndex(0)
+1->Emitted(117, 17) Source(99, 2) + SourceIndex(0)
+2 >Emitted(117, 18) Source(99, 3) + SourceIndex(0)
+3 >Emitted(117, 18) Source(91, 2) + SourceIndex(0)
+4 >Emitted(117, 19) Source(91, 28) + SourceIndex(0)
+5 >Emitted(117, 31) Source(91, 40) + SourceIndex(0)
+6 >Emitted(117, 34) Source(99, 3) + SourceIndex(0)
 ---
 >>>                PlainText.Mode = Mode;
 1->^^^^^^^^^^^^^^^^
@@ -1765,10 +1785,10 @@ sourceFile:recursiveClassReferenceTest.ts
   >                              
   >                              	}
 4 >                                     
-1->Emitted(99, 17) Source(91, 15) + SourceIndex(0)
-2 >Emitted(99, 31) Source(91, 19) + SourceIndex(0)
-3 >Emitted(99, 38) Source(99, 3) + SourceIndex(0)
-4 >Emitted(99, 39) Source(99, 3) + SourceIndex(0)
+1->Emitted(118, 17) Source(91, 15) + SourceIndex(0)
+2 >Emitted(118, 31) Source(91, 19) + SourceIndex(0)
+3 >Emitted(118, 38) Source(99, 3) + SourceIndex(0)
+4 >Emitted(118, 39) Source(99, 3) + SourceIndex(0)
 ---
 >>>            })(PlainText = Languages.PlainText || (Languages.PlainText = {}));
 1->^^^^^^^^^^^^
@@ -1814,15 +1834,15 @@ sourceFile:recursiveClassReferenceTest.ts
   >                                                                      
   >                                                                      	}
   >                                                                      }
-1->Emitted(100, 13) Source(100, 1) + SourceIndex(0)
-2 >Emitted(100, 14) Source(100, 2) + SourceIndex(0)
-3 >Emitted(100, 16) Source(76, 31) + SourceIndex(0)
-4 >Emitted(100, 25) Source(76, 40) + SourceIndex(0)
-5 >Emitted(100, 28) Source(76, 31) + SourceIndex(0)
-6 >Emitted(100, 47) Source(76, 40) + SourceIndex(0)
-7 >Emitted(100, 52) Source(76, 31) + SourceIndex(0)
-8 >Emitted(100, 71) Source(76, 40) + SourceIndex(0)
-9 >Emitted(100, 79) Source(100, 2) + SourceIndex(0)
+1->Emitted(119, 13) Source(100, 1) + SourceIndex(0)
+2 >Emitted(119, 14) Source(100, 2) + SourceIndex(0)
+3 >Emitted(119, 16) Source(76, 31) + SourceIndex(0)
+4 >Emitted(119, 25) Source(76, 40) + SourceIndex(0)
+5 >Emitted(119, 28) Source(76, 31) + SourceIndex(0)
+6 >Emitted(119, 47) Source(76, 40) + SourceIndex(0)
+7 >Emitted(119, 52) Source(76, 31) + SourceIndex(0)
+8 >Emitted(119, 71) Source(76, 40) + SourceIndex(0)
+9 >Emitted(119, 79) Source(100, 2) + SourceIndex(0)
 ---
 >>>        })(Languages = Thing.Languages || (Thing.Languages = {}));
 1 >^^^^^^^^
@@ -1867,15 +1887,15 @@ sourceFile:recursiveClassReferenceTest.ts
   >                                                          
   >                                                          	}
   >                                                          }
-1 >Emitted(101, 9) Source(100, 1) + SourceIndex(0)
-2 >Emitted(101, 10) Source(100, 2) + SourceIndex(0)
-3 >Emitted(101, 12) Source(76, 21) + SourceIndex(0)
-4 >Emitted(101, 21) Source(76, 30) + SourceIndex(0)
-5 >Emitted(101, 24) Source(76, 21) + SourceIndex(0)
-6 >Emitted(101, 39) Source(76, 30) + SourceIndex(0)
-7 >Emitted(101, 44) Source(76, 21) + SourceIndex(0)
-8 >Emitted(101, 59) Source(76, 30) + SourceIndex(0)
-9 >Emitted(101, 67) Source(100, 2) + SourceIndex(0)
+1 >Emitted(120, 9) Source(100, 1) + SourceIndex(0)
+2 >Emitted(120, 10) Source(100, 2) + SourceIndex(0)
+3 >Emitted(120, 12) Source(76, 21) + SourceIndex(0)
+4 >Emitted(120, 21) Source(76, 30) + SourceIndex(0)
+5 >Emitted(120, 24) Source(76, 21) + SourceIndex(0)
+6 >Emitted(120, 39) Source(76, 30) + SourceIndex(0)
+7 >Emitted(120, 44) Source(76, 21) + SourceIndex(0)
+8 >Emitted(120, 59) Source(76, 30) + SourceIndex(0)
+9 >Emitted(120, 67) Source(100, 2) + SourceIndex(0)
 ---
 >>>    })(Thing = Sample.Thing || (Sample.Thing = {}));
 1 >^^^^
@@ -1920,15 +1940,15 @@ sourceFile:recursiveClassReferenceTest.ts
   >                                            
   >                                            	}
   >                                            }
-1 >Emitted(102, 5) Source(100, 1) + SourceIndex(0)
-2 >Emitted(102, 6) Source(100, 2) + SourceIndex(0)
-3 >Emitted(102, 8) Source(76, 15) + SourceIndex(0)
-4 >Emitted(102, 13) Source(76, 20) + SourceIndex(0)
-5 >Emitted(102, 16) Source(76, 15) + SourceIndex(0)
-6 >Emitted(102, 28) Source(76, 20) + SourceIndex(0)
-7 >Emitted(102, 33) Source(76, 15) + SourceIndex(0)
-8 >Emitted(102, 45) Source(76, 20) + SourceIndex(0)
-9 >Emitted(102, 53) Source(100, 2) + SourceIndex(0)
+1 >Emitted(121, 5) Source(100, 1) + SourceIndex(0)
+2 >Emitted(121, 6) Source(100, 2) + SourceIndex(0)
+3 >Emitted(121, 8) Source(76, 15) + SourceIndex(0)
+4 >Emitted(121, 13) Source(76, 20) + SourceIndex(0)
+5 >Emitted(121, 16) Source(76, 15) + SourceIndex(0)
+6 >Emitted(121, 28) Source(76, 20) + SourceIndex(0)
+7 >Emitted(121, 33) Source(76, 15) + SourceIndex(0)
+8 >Emitted(121, 45) Source(76, 20) + SourceIndex(0)
+9 >Emitted(121, 53) Source(100, 2) + SourceIndex(0)
 ---
 >>>})(Sample || (Sample = {}));
 1 >
@@ -1970,12 +1990,12 @@ sourceFile:recursiveClassReferenceTest.ts
   >                    
   >                    	}
   >                    }
-1 >Emitted(103, 1) Source(100, 1) + SourceIndex(0)
-2 >Emitted(103, 2) Source(100, 2) + SourceIndex(0)
-3 >Emitted(103, 4) Source(76, 8) + SourceIndex(0)
-4 >Emitted(103, 10) Source(76, 14) + SourceIndex(0)
-5 >Emitted(103, 15) Source(76, 8) + SourceIndex(0)
-6 >Emitted(103, 21) Source(76, 14) + SourceIndex(0)
-7 >Emitted(103, 29) Source(100, 2) + SourceIndex(0)
+1 >Emitted(122, 1) Source(100, 1) + SourceIndex(0)
+2 >Emitted(122, 2) Source(100, 2) + SourceIndex(0)
+3 >Emitted(122, 4) Source(76, 8) + SourceIndex(0)
+4 >Emitted(122, 10) Source(76, 14) + SourceIndex(0)
+5 >Emitted(122, 15) Source(76, 8) + SourceIndex(0)
+6 >Emitted(122, 21) Source(76, 14) + SourceIndex(0)
+7 >Emitted(122, 29) Source(100, 2) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=recursiveClassReferenceTest.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/recursiveComplicatedClasses.js b/tests/baselines/reference/recursiveComplicatedClasses.js
index cb46865c46f53..dae5d6ac3c0b7 100644
--- a/tests/baselines/reference/recursiveComplicatedClasses.js
+++ b/tests/baselines/reference/recursiveComplicatedClasses.js
@@ -25,6 +25,20 @@ class TypeSymbol extends InferenceSymbol {
 }
 
 //// [recursiveComplicatedClasses.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -51,6 +65,7 @@ var Symbol = (function () {
         var b;
         return aEnclosesB(b);
     };
+    __names(Symbol.prototype, ["visible"]);
     return Symbol;
 }());
 var InferenceSymbol = (function (_super) {
diff --git a/tests/baselines/reference/recursiveInheritance3.js b/tests/baselines/reference/recursiveInheritance3.js
index 564d4fe6f3c64..19df835af84b8 100644
--- a/tests/baselines/reference/recursiveInheritance3.js
+++ b/tests/baselines/reference/recursiveInheritance3.js
@@ -9,10 +9,25 @@ interface I extends C {
 }
 
 //// [recursiveInheritance3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
         this.x = 1;
     }
     C.prototype.foo = function (x) { return x; };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/requireEmitSemicolon.js b/tests/baselines/reference/requireEmitSemicolon.js
index 667002efeaa67..c76de6835abb0 100644
--- a/tests/baselines/reference/requireEmitSemicolon.js
+++ b/tests/baselines/reference/requireEmitSemicolon.js
@@ -34,6 +34,20 @@ define(["require", "exports"], function (require, exports) {
     })(Models = exports.Models || (exports.Models = {}));
 });
 //// [requireEmitSemicolon_1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports", "requireEmitSemicolon_0"], function (require, exports, P) {
     "use strict";
     exports.__esModule = true;
@@ -45,6 +59,7 @@ define(["require", "exports", "requireEmitSemicolon_0"], function (require, expo
             DB.prototype.findPerson = function (id) {
                 return new P.Models.Person("Rock");
             };
+            __names(DB.prototype, ["findPerson"]);
             return DB;
         }());
         Database.DB = DB;
diff --git a/tests/baselines/reference/requiredInitializedParameter2.js b/tests/baselines/reference/requiredInitializedParameter2.js
index b46a6edfeb0aa..060b6781ba3a3 100644
--- a/tests/baselines/reference/requiredInitializedParameter2.js
+++ b/tests/baselines/reference/requiredInitializedParameter2.js
@@ -8,11 +8,26 @@ class C1 implements I1 {
 }
 
 //// [requiredInitializedParameter2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1() {
     }
     C1.prototype.method = function (a, b) {
         if (a === void 0) { a = 0; }
     };
+    __names(C1.prototype, ["method"]);
     return C1;
 }());
diff --git a/tests/baselines/reference/requiredInitializedParameter3.js b/tests/baselines/reference/requiredInitializedParameter3.js
index 983955b79e832..839426cf1f2ce 100644
--- a/tests/baselines/reference/requiredInitializedParameter3.js
+++ b/tests/baselines/reference/requiredInitializedParameter3.js
@@ -8,12 +8,27 @@ class C1 implements I1 {
 }
 
 //// [requiredInitializedParameter3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1() {
     }
     C1.prototype.method = function (a, b) {
         if (a === void 0) { a = 0; }
     };
+    __names(C1.prototype, ["method"]);
     return C1;
 }());
 
diff --git a/tests/baselines/reference/requiredInitializedParameter4.js b/tests/baselines/reference/requiredInitializedParameter4.js
index 11abdc20f411e..807adff10a19a 100644
--- a/tests/baselines/reference/requiredInitializedParameter4.js
+++ b/tests/baselines/reference/requiredInitializedParameter4.js
@@ -4,12 +4,27 @@ class C1 {
 }
 
 //// [requiredInitializedParameter4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1() {
     }
     C1.prototype.method = function (a, b) {
         if (a === void 0) { a = 0; }
     };
+    __names(C1.prototype, ["method"]);
     return C1;
 }());
 
diff --git a/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js b/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js
index 1a9a3dacbbaac..df4b206c61920 100644
--- a/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js
+++ b/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js
@@ -1030,6 +1030,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var rionegrensis;
 (function (rionegrensis) {
     var caniventer = (function (_super) {
@@ -1067,6 +1081,7 @@ var rionegrensis;
             (function () { var y = _this; });
             return x;
         };
+        __names(caniventer.prototype, ["salomonseni", "uchidai", "raffrayana", "Uranium", "nayaur"]);
         return caniventer;
     }(Lanthanum.nitidus));
     rionegrensis.caniventer = caniventer;
@@ -1105,6 +1120,7 @@ var rionegrensis;
             (function () { var y = _this; });
             return x;
         };
+        __names(veraecrucis.prototype, ["naso", "vancouverensis", "africana", "palliolata", "nivicola"]);
         return veraecrucis;
     }(trivirgatus.mixtus));
     rionegrensis.veraecrucis = veraecrucis;
@@ -1150,6 +1166,7 @@ var julianae;
             (function () { var y = _this; });
             return x;
         };
+        __names(nudicaudus.prototype, ["brandtii", "maxwellii", "endoi", "venezuelae", "zamicrus"]);
         return nudicaudus;
     }());
     julianae.nudicaudus = nudicaudus;
@@ -1198,6 +1215,7 @@ var julianae;
             (function () { var y = _this; });
             return x;
         };
+        __names(galapagoensis.prototype, ["isabellae", "rueppellii", "peregusna", "gliroides", "banakrisi", "rozendaali", "stuhlmanni"]);
         return galapagoensis;
     }());
     julianae.galapagoensis = galapagoensis;
@@ -1246,6 +1264,7 @@ var julianae;
             (function () { var y = _this; });
             return x;
         };
+        __names(albidens.prototype, ["mattheyi", "Astatine", "vincenti", "hirta", "virginianus", "macrophyllum", "porcellus"]);
         return albidens;
     }());
     julianae.albidens = albidens;
@@ -1332,6 +1351,7 @@ var julianae;
             (function () { var y = _this; });
             return x;
         };
+        __names(oralis.prototype, ["cepapi", "porteri", "bindi", "puda", "mindorensis", "ignitus", "rufus", "monax", "unalascensis", "wuchihensis", "leucippe", "ordii", "eisentrauti"]);
         return oralis;
     }(caurinus.psilurus));
     julianae.oralis = oralis;
@@ -1382,6 +1402,7 @@ var julianae;
             (function () { var y = _this; });
             return x;
         };
+        __names(sumatrana.prototype, ["wolffsohni", "geata", "awashensis", "sturdeei", "pachyurus", "lyelli", "neohibernicus"]);
         return sumatrana;
     }(Lanthanum.jugularis));
     julianae.sumatrana = sumatrana;
@@ -1454,6 +1475,7 @@ var julianae;
             (function () { var y = _this; });
             return x;
         };
+        __names(gerbillus.prototype, ["pundti", "tristrami", "swarthi", "horsfieldii", "diazi", "rennelli", "maulinus", "muscina", "pelengensis", "abramus", "reevesi"]);
         return gerbillus;
     }());
     julianae.gerbillus = gerbillus;
@@ -1532,6 +1554,7 @@ var julianae;
             (function () { var y = _this; });
             return x;
         };
+        __names(acariensis.prototype, ["levicula", "minous", "cinereiventer", "longicaudatus", "baeodon", "soricoides", "datae", "spixii", "anakuma", "kihaulei", "gymnura", "olchonensis"]);
         return acariensis;
     }());
     julianae.acariensis = acariensis;
@@ -1558,6 +1581,7 @@ var julianae;
             (function () { var y = _this; });
             return x;
         };
+        __names(durangae.prototype, ["Californium", "Flerovium", "phrudus"]);
         return durangae;
     }(dogramacii.aurata));
     julianae.durangae = durangae;
@@ -1579,6 +1603,7 @@ var ruatanica;
             (function () { var y = _this; });
             return x;
         };
+        __names(hector.prototype, ["humulis", "eurycerus"]);
         return hector;
     }());
     ruatanica.hector = hector;
@@ -1606,6 +1631,7 @@ var Lanthanum;
             (function () { var y = _this; });
             return x;
         };
+        __names(suillus.prototype, ["spilosoma", "tumbalensis", "anatolicus"]);
         return suillus;
     }());
     Lanthanum.suillus = suillus;
@@ -1674,6 +1700,7 @@ var Lanthanum;
             (function () { var y = _this; });
             return x;
         };
+        __names(nitidus.prototype, ["granatensis", "negligens", "lewisi", "arge", "dominicensis", "taurus", "tonganus", "silvatica", "midas", "bicornis"]);
         return nitidus;
     }(argurus.gilbertii));
     Lanthanum.nitidus = nitidus;
@@ -1730,6 +1757,7 @@ var Lanthanum;
             (function () { var y = _this; });
             return x;
         };
+        __names(megalonyx.prototype, ["phillipsii", "melanogaster", "elaphus", "elater", "ourebi", "caraccioli", "parva", "albipes"]);
         return megalonyx;
     }(caurinus.johorensis));
     Lanthanum.megalonyx = megalonyx;
@@ -1820,6 +1848,7 @@ var Lanthanum;
             (function () { var y = _this; });
             return x;
         };
+        __names(jugularis.prototype, ["torrei", "revoili", "macrobullatus", "compactus", "talpinus", "stramineus", "dartmouthi", "ogilbyi", "incomtus", "surdaster", "melanorhinus", "picticaudata", "pomona", "ileile"]);
         return jugularis;
     }());
     Lanthanum.jugularis = jugularis;
@@ -1915,6 +1944,7 @@ var rendalli;
             (function () { var y = _this; });
             return x;
         };
+        __names(zuluensis.prototype, ["telfairi", "keyensis", "occasius", "damarensis", "Neptunium", "griseoflavus", "thar", "alborufus", "fusicaudus", "gordonorum", "ruber", "desmarestianus", "lutillus", "salocco"]);
         return zuluensis;
     }(julianae.steerii));
     rendalli.zuluensis = zuluensis;
@@ -1981,6 +2011,7 @@ var rendalli;
             (function () { var y = _this; });
             return x;
         };
+        __names(moojeni.prototype, ["floweri", "montosa", "miletus", "heaneyi", "marchei", "budini", "maggietaylorae", "poliocephalus", "zibethicus", "biacensis"]);
         return moojeni;
     }());
     rendalli.moojeni = moojeni;
@@ -2007,6 +2038,7 @@ var rendalli;
             (function () { var y = _this; });
             return x;
         };
+        __names(crenulata.prototype, ["salvanius", "maritimus", "edax"]);
         return crenulata;
     }(trivirgatus.falconeri));
     rendalli.crenulata = crenulata;
@@ -2064,6 +2096,7 @@ var trivirgatus;
             (function () { var y = _this; });
             return x;
         };
+        __names(tumidifrons.prototype, ["nivalis", "vestitus", "aequatorius", "scherman", "improvisum", "cervinipes", "audax", "vallinus"]);
         return tumidifrons;
     }());
     trivirgatus.tumidifrons = tumidifrons;
@@ -2114,6 +2147,7 @@ var trivirgatus;
             (function () { var y = _this; });
             return x;
         };
+        __names(mixtus.prototype, ["ochrogaster", "bryophilus", "liechtensteini", "crawfordi", "hypsibia", "matacus", "demidoff"]);
         return mixtus;
     }(argurus.pygmaea));
     trivirgatus.mixtus = mixtus;
@@ -2132,6 +2166,7 @@ var trivirgatus;
             (function () { var y = _this; });
             return x;
         };
+        __names(lotor.prototype, ["balensis", "pullata"]);
         return lotor;
     }());
     trivirgatus.lotor = lotor;
@@ -2180,6 +2215,7 @@ var trivirgatus;
             (function () { var y = _this; });
             return x;
         };
+        __names(falconeri.prototype, ["cabrali", "gouldi", "fuscicollis", "martiensseni", "gaoligongensis", "shawi", "gmelini"]);
         return falconeri;
     }());
     trivirgatus.falconeri = falconeri;
@@ -2270,6 +2306,7 @@ var trivirgatus;
             (function () { var y = _this; });
             return x;
         };
+        __names(oconnelli.prototype, ["youngsoni", "terrestris", "chrysopus", "fuscomurina", "hellwaldii", "aenea", "perrini", "entellus", "krebsii", "cephalotes", "molossinus", "luisi", "ceylonicus", "ralli"]);
         return oconnelli;
     }());
     trivirgatus.oconnelli = oconnelli;
@@ -2303,6 +2340,7 @@ var quasiater;
             (function () { var y = _this; });
             return x;
         };
+        __names(bobrinskoi.prototype, ["crassicaudatus", "mulatta", "ansorgei", "Copper"]);
         return bobrinskoi;
     }());
     quasiater.bobrinskoi = bobrinskoi;
@@ -2337,6 +2375,7 @@ var quasiater;
             (function () { var y = _this; });
             return x;
         };
+        __names(americanus.prototype, ["nasoloi", "mystacalis", "fardoulisi", "tumidus"]);
         return americanus;
     }(imperfecta.ciliolabrum));
     ruatanica.americanus = americanus;
@@ -2426,6 +2465,7 @@ var lavali;
             (function () { var y = _this; });
             return x;
         };
+        __names(wilsoni.prototype, ["setiger", "lorentzii", "antisensis", "blossevillii", "bontanus", "caligata", "franqueti", "roberti", "degelidus", "amoenus", "kob", "csorbai", "dorsata"]);
         return wilsoni;
     }(Lanthanum.nitidus));
     lavali.wilsoni = wilsoni;
@@ -2518,6 +2558,7 @@ var lavali;
             (function () { var y = _this; });
             return x;
         };
+        __names(otion.prototype, ["bonaerensis", "dussumieri", "osvaldoreigi", "grevyi", "hirtula", "cristatus", "darlingtoni", "fontanierii", "umbrosus", "chiriquinus", "orarius", "ilaeus", "musschenbroekii"]);
         return otion;
     }(howi.coludo));
     lavali.otion = otion;
@@ -2596,6 +2637,7 @@ var lavali;
             (function () { var y = _this; });
             return x;
         };
+        __names(xanthognathus.prototype, ["nanulus", "albigena", "onca", "gunnii", "apeco", "variegates", "goudotii", "pohlei", "ineptus", "euryotis", "maurisca", "coyhaiquensis"]);
         return xanthognathus;
     }());
     lavali.xanthognathus = xanthognathus;
@@ -2652,6 +2694,7 @@ var lavali;
             (function () { var y = _this; });
             return x;
         };
+        __names(thaeleri.prototype, ["coromandra", "parvipes", "sponsorius", "vates", "roosmalenorum", "rubicola", "ikonnikovi", "paramicrus"]);
         return thaeleri;
     }(argurus.oreas));
     lavali.thaeleri = thaeleri;
@@ -2672,6 +2715,7 @@ var lavali;
             (function () { var y = _this; });
             return x;
         };
+        __names(lepturus.prototype, ["ferrumequinum", "aequalis"]);
         return lepturus;
     }(Lanthanum.suillus));
     lavali.lepturus = lepturus;
@@ -2737,6 +2781,7 @@ var dogramacii;
             (function () { var y = _this; });
             return x;
         };
+        __names(robustulus.prototype, ["fossor", "humboldti", "mexicana", "martini", "beatus", "leporina", "pearsonii", "keaysi", "hindei"]);
         return robustulus;
     }(lavali.wilsoni));
     dogramacii.robustulus = robustulus;
@@ -2749,6 +2794,7 @@ var dogramacii;
             (function () { var y = _this; });
             return x;
         };
+        __names(koepckeae.prototype, ["culturatus"]);
         return koepckeae;
     }());
     dogramacii.koepckeae = koepckeae;
@@ -2833,6 +2879,7 @@ var dogramacii;
             (function () { var y = _this; });
             return x;
         };
+        __names(kaiseri.prototype, ["bedfordiae", "paramorum", "rubidus", "juninensis", "marginata", "Meitnerium", "pinetorum", "hoolock", "poeyi", "Thulium", "patrius", "quadraticauda", "ater"]);
         return kaiseri;
     }());
     dogramacii.kaiseri = kaiseri;
@@ -2887,6 +2934,7 @@ var dogramacii;
             (function () { var y = _this; });
             return x;
         };
+        __names(aurata.prototype, ["grunniens", "howensis", "karlkoopmani", "mirapitanga", "ophiodon", "landeri", "sonomae", "erythromos"]);
         return aurata;
     }());
     dogramacii.aurata = aurata;
@@ -2982,6 +3030,7 @@ var lutreolus;
             (function () { var y = _this; });
             return x;
         };
+        __names(schlegeli.prototype, ["mittendorfi", "blicki", "culionensis", "scrofa", "fernandoni", "Tin", "marmorata", "tavaratra", "peregrina", "frontalis", "cuniculus", "magdalenae", "andamanensis", "dispar"]);
         return schlegeli;
     }(lavali.beisa));
     lutreolus.schlegeli = schlegeli;
@@ -3057,6 +3106,7 @@ var argurus;
             (function () { var y = _this; });
             return x;
         };
+        __names(dauricus.prototype, ["chinensis", "duodecimcostatus", "foxi", "macleayii", "darienensis", "hardwickii", "albifrons", "jacobitus", "guentheri", "mahomet", "misionensis"]);
         return dauricus;
     }());
     argurus.dauricus = dauricus;
@@ -3114,6 +3164,7 @@ var nigra;
             (function () { var y = _this; });
             return x;
         };
+        __names(dolichurus.prototype, ["solomonis", "alfredi", "morrisi", "lekaguli", "dimissus", "phaeotis", "ustus", "sagei"]);
         return dolichurus;
     }());
     nigra.dolichurus = dolichurus;
@@ -3161,6 +3212,7 @@ var panglima;
             (function () { var y = _this; });
             return x;
         };
+        __names(amphibius.prototype, ["bottegi", "jerdoni", "camtschatica", "spadix", "luismanueli", "aceramarcae"]);
         return amphibius;
     }(caurinus.johorensis));
     panglima.amphibius = amphibius;
@@ -3187,6 +3239,7 @@ var panglima;
             (function () { var y = _this; });
             return x;
         };
+        __names(fundatus.prototype, ["crassulus", "flamarioni", "mirabilis"]);
         return fundatus;
     }(lutreolus.schlegeli));
     panglima.fundatus = fundatus;
@@ -3225,6 +3278,7 @@ var panglima;
             (function () { var y = _this; });
             return x;
         };
+        __names(abidi.prototype, ["greyii", "macedonicus", "galili", "thierryi", "ega"]);
         return abidi;
     }(argurus.dauricus));
     panglima.abidi = abidi;
@@ -3275,6 +3329,7 @@ var panglima;
             (function () { var y = _this; });
             return x;
         };
+        __names(carolinensis.prototype, ["concinna", "aeneus", "aloysiisabaudiae", "tenellus", "andium", "persephone", "patrizii"]);
         return carolinensis;
     }());
     quasiater.carolinensis = carolinensis;
@@ -3358,6 +3413,7 @@ var minutus;
             (function () { var y = _this; });
             return x;
         };
+        __names(himalayana.prototype, ["simoni", "lobata", "rusticus", "latona", "famulus", "flaviceps", "paradoxolophus", "Osmium", "vulgaris", "betsileoensis", "vespuccii", "olympus"]);
         return himalayana;
     }(lutreolus.punicus));
     minutus.himalayana = himalayana;
@@ -3417,6 +3473,7 @@ var caurinus;
             (function () { var y = _this; });
             return x;
         };
+        __names(mahaganus.prototype, ["martiniquensis", "devius", "masalai", "kathleenae", "simulus", "nigrovittatus", "senegalensis", "acticola"]);
         return mahaganus;
     }(panglima.fundatus));
     caurinus.mahaganus = mahaganus;
@@ -3432,6 +3489,7 @@ var macrorhinos;
             (function () { var y = _this; });
             return x;
         };
+        __names(marmosurus.prototype, ["tansaniana"]);
         return marmosurus;
     }());
     macrorhinos.marmosurus = marmosurus;
@@ -3449,6 +3507,7 @@ var howi;
             (function () { var y = _this; });
             return x;
         };
+        __names(angulatus.prototype, ["pennatus"]);
         return angulatus;
     }(sagitta.stolzmanni));
     howi.angulatus = angulatus;
@@ -3514,6 +3573,7 @@ var daubentonii;
             (function () { var y = _this; });
             return x;
         };
+        __names(thalia.prototype, ["dichotomus", "arnuxii", "verheyeni", "dauuricus", "tristriatus", "lasiura", "gangetica", "brucei"]);
         return thalia;
     }());
     nigra.thalia = thalia;
@@ -3531,6 +3591,7 @@ var sagitta;
             (function () { var y = _this; });
             return x;
         };
+        __names(walkeri.prototype, ["maracajuensis"]);
         return walkeri;
     }(minutus.portoricensis));
     sagitta.walkeri = walkeri;
@@ -3547,6 +3608,7 @@ var sagitta;
             (function () { var y = _this; });
             return x;
         };
+        __names(inez.prototype, ["vexillaris"]);
         return inez;
     }(samarensis.pelurus));
     minutus.inez = inez;
@@ -3622,6 +3684,7 @@ var panamensis;
             (function () { var y = _this; });
             return x;
         };
+        __names(linulus.prototype, ["goslingi", "taki", "fumosus", "rufinus", "lami", "regina", "nanilla", "enganus", "gomantongensis"]);
         return linulus;
     }(ruatanica.hector));
     panamensis.linulus = linulus;
@@ -3708,6 +3771,7 @@ var panamensis;
             (function () { var y = _this; });
             return x;
         };
+        __names(gracilis.prototype, ["weddellii", "echinothrix", "garridoi", "rouxii", "aurita", "geoffrensis", "theresa", "melanocarpus", "dubiaquercus", "pectoralis", "apoensis", "grisescens", "ramirohitra"]);
         return gracilis;
     }());
     nigra.gracilis = gracilis;
@@ -3797,6 +3861,7 @@ var samarensis;
             (function () { var y = _this; });
             return x;
         };
+        __names(pelurus.prototype, ["Palladium", "castanea", "chamek", "nigriceps", "lunatus", "madurae", "chinchilla", "eliasi", "proditor", "gambianus", "petteri", "nusatenggara", "olitor"]);
         return pelurus;
     }(sagitta.stolzmanni));
     samarensis.pelurus = pelurus;
@@ -3889,6 +3954,7 @@ var samarensis;
             (function () { var y = _this; });
             return x;
         };
+        __names(fuscus.prototype, ["planifrons", "badia", "prymnolopha", "natalensis", "hunteri", "sapiens", "macrocercus", "nimbae", "suricatta", "jagorii", "beecrofti", "imaizumii", "colocolo", "wolfi"]);
         return fuscus;
     }(macrorhinos.daphaenodon));
     samarensis.fuscus = fuscus;
@@ -3919,6 +3985,7 @@ var samarensis;
             (function () { var y = _this; });
             return x;
         };
+        __names(pallidus.prototype, ["oblativa", "watersi", "glacialis", "viaria"]);
         return pallidus;
     }());
     samarensis.pallidus = pallidus;
@@ -3955,6 +4022,7 @@ var samarensis;
             (function () { var y = _this; });
             return x;
         };
+        __names(cahirinus.prototype, ["alashanicus", "flaviventer", "bottai", "pinetis", "saussurei"]);
         return cahirinus;
     }());
     samarensis.cahirinus = cahirinus;
@@ -3995,6 +4063,7 @@ var samarensis;
             (function () { var y = _this; });
             return x;
         };
+        __names(leptoceros.prototype, ["victus", "hoplomyoides", "gratiosus", "rex", "bolami"]);
         return leptoceros;
     }(caurinus.johorensis));
     sagitta.leptoceros = leptoceros;
@@ -4011,6 +4080,7 @@ var samarensis;
             (function () { var y = _this; });
             return x;
         };
+        __names(nigricans.prototype, ["woosnami"]);
         return nigricans;
     }(sagitta.stolzmanni));
     daubentonii.nigricans = nigricans;
@@ -4048,6 +4118,7 @@ var dammermani;
             (function () { var y = _this; });
             return x;
         };
+        __names(pygmaea.prototype, ["pajeros", "capucinus", "cuvieri"]);
         return pygmaea;
     }(rendalli.moojeni));
     argurus.pygmaea = pygmaea;
@@ -4101,6 +4172,7 @@ var chrysaeolus;
             (function () { var y = _this; });
             return x;
         };
+        __names(sarasinorum.prototype, ["belzebul", "hinpoon", "kandti", "cynosuros", "Germanium", "Ununoctium", "princeps"]);
         return sarasinorum;
     }(caurinus.psilurus));
     chrysaeolus.sarasinorum = sarasinorum;
@@ -4151,6 +4223,7 @@ var chrysaeolus;
             (function () { var y = _this; });
             return x;
         };
+        __names(wetmorei.prototype, ["leucoptera", "ochraventer", "tephromelas", "cracens", "jamaicensis", "gymnocaudus", "mayori"]);
         return wetmorei;
     }());
     argurus.wetmorei = wetmorei;
@@ -4209,6 +4282,7 @@ var chrysaeolus;
             (function () { var y = _this; });
             return x;
         };
+        __names(oreas.prototype, ["salamonis", "paniscus", "fagani", "papuanus", "timidus", "nghetinhensis", "barbei", "univittatus"]);
         return oreas;
     }(lavali.wilsoni));
     argurus.oreas = oreas;
@@ -4289,6 +4363,7 @@ var chrysaeolus;
             (function () { var y = _this; });
             return x;
         };
+        __names(arboreus.prototype, ["capreolus", "moreni", "hypoleucos", "paedulcus", "pucheranii", "stella", "brasiliensis", "brevicaudata", "vitticollis", "huangensis", "cameroni", "tianshanica"]);
         return arboreus;
     }());
     daubentonii.arboreus = arboreus;
@@ -4376,6 +4451,7 @@ var patas;
             (function () { var y = _this; });
             return x;
         };
+        __names(uralensis.prototype, ["cartilagonodus", "pyrrhinus", "insulans", "nigricauda", "muricauda", "albicaudus", "fallax", "attenuata", "megalura", "neblina", "citellus", "tanezumi", "albiventer"]);
         return uralensis;
     }());
     patas.uralensis = uralensis;
@@ -4399,6 +4475,7 @@ var provocax;
             (function () { var y = _this; });
             return x;
         };
+        __names(melanoleuca.prototype, ["Neodymium", "baeri"]);
         return melanoleuca;
     }(lavali.wilsoni));
     provocax.melanoleuca = melanoleuca;
@@ -4419,6 +4496,7 @@ var provocax;
             (function () { var y = _this; });
             return x;
         };
+        __names(sicarius.prototype, ["Chlorine", "simulator"]);
         return sicarius;
     }());
     sagitta.sicarius = sicarius;
@@ -4513,6 +4591,7 @@ var provocax;
             (function () { var y = _this; });
             return x;
         };
+        __names(marcanoi.prototype, ["formosae", "dudui", "leander", "martinsi", "beatrix", "griseoventer", "zerda", "yucatanicus", "nigrita", "jouvenetae", "indefessus", "vuquangensis", "Zirconium", "hyaena"]);
         return marcanoi;
     }(Lanthanum.megalonyx));
     howi.marcanoi = marcanoi;
@@ -4593,6 +4672,7 @@ var provocax;
             (function () { var y = _this; });
             return x;
         };
+        __names(gilbertii.prototype, ["nasutus", "poecilops", "sondaicus", "auriventer", "cherriei", "lindberghi", "pipistrellus", "paranus", "dubosti", "opossum", "oreopolus", "amurensis"]);
         return gilbertii;
     }());
     argurus.gilbertii = gilbertii;
@@ -4688,6 +4768,7 @@ var petrophilus;
             (function () { var y = _this; });
             return x;
         };
+        __names(punicus.prototype, ["strandi", "lar", "erica", "trichura", "lemniscatus", "aspalax", "marshalli", "Zinc", "monochromos", "purinus", "ischyrus", "tenuis", "Helium"]);
         return punicus;
     }());
     lutreolus.punicus = punicus;
@@ -4732,6 +4813,7 @@ var petrophilus;
             (function () { var y = _this; });
             return x;
         };
+        __names(daphaenodon.prototype, ["bredanensis", "othus", "hammondi", "aureocollaris", "flavipes", "callosus"]);
         return daphaenodon;
     }());
     macrorhinos.daphaenodon = daphaenodon;
@@ -4812,6 +4894,7 @@ var petrophilus;
             (function () { var y = _this; });
             return x;
         };
+        __names(cinereus.prototype, ["zunigae", "microps", "guaporensis", "tonkeana", "montensis", "sphinx", "glis", "dorsalis", "fimbriatus", "sara", "epimelas", "pittieri"]);
         return cinereus;
     }());
     sagitta.cinereus = cinereus;
@@ -4897,6 +4980,7 @@ var gabriellae;
             (function () { var y = _this; });
             return x;
         };
+        __names(amicus.prototype, ["pirrensis", "phaeura", "voratus", "satarae", "hooperi", "perrensi", "ridei", "audeberti", "Lutetium", "atrox"]);
         return amicus;
     }());
     gabriellae.amicus = amicus;
@@ -4909,6 +4993,7 @@ var gabriellae;
             (function () { var y = _this; });
             return x;
         };
+        __names(echinatus.prototype, ["tenuipes"]);
         return echinatus;
     }());
     gabriellae.echinatus = echinatus;
@@ -4954,6 +5039,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(lasiurus.prototype, ["marisae", "fulvus", "paranaensis", "didactylus", "schreibersii", "orii"]);
         return lasiurus;
     }());
     imperfecta.lasiurus = lasiurus;
@@ -5026,6 +5112,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(subspinosus.prototype, ["monticularis", "Gadolinium", "oasicus", "paterculus", "punctata", "invictus", "stangeri", "siskiyou", "welwitschii", "Polonium", "harpia"]);
         return subspinosus;
     }());
     imperfecta.subspinosus = subspinosus;
@@ -5052,6 +5139,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(ciliolabrum.prototype, ["leschenaultii", "ludia", "sinicus"]);
         return ciliolabrum;
     }(dogramacii.robustulus));
     imperfecta.ciliolabrum = ciliolabrum;
@@ -5084,6 +5172,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(wattsi.prototype, ["lagotis", "hussoni", "bilarni", "cabrerae"]);
         return wattsi;
     }());
     quasiater.wattsi = wattsi;
@@ -5148,6 +5237,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(sodyi.prototype, ["saundersiae", "imberbis", "cansdalei", "Lawrencium", "catta", "breviceps", "transitionalis", "heptneri", "bairdii"]);
         return sodyi;
     }(quasiater.bobrinskoi));
     petrophilus.sodyi = sodyi;
@@ -5206,6 +5296,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(megaphyllus.prototype, ["montana", "amatus", "bucculentus", "lepida", "graecus", "forsteri", "perotensis", "cirrhosus"]);
         return megaphyllus;
     }(imperfecta.lasiurus));
     caurinus.megaphyllus = megaphyllus;
@@ -5232,6 +5323,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(portoricensis.prototype, ["relictus", "aequatorianus", "rhinogradoides"]);
         return portoricensis;
     }());
     minutus.portoricensis = portoricensis;
@@ -5318,6 +5410,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(foina.prototype, ["tarfayensis", "Promethium", "salinae", "kerri", "scotti", "camerunensis", "affinis", "siebersi", "maquassiensis", "layardi", "bishopi", "apodemoides", "argentiventer"]);
         return foina;
     }());
     lutreolus.foina = foina;
@@ -5388,6 +5481,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(cor.prototype, ["antinorii", "voi", "mussoi", "truncatus", "achates", "praedatrix", "mzabi", "xanthinus", "tapoatafa", "castroviejoi"]);
         return cor;
     }(panglima.fundatus));
     lutreolus.cor = cor;
@@ -5408,6 +5502,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(coludo.prototype, ["bernhardi", "isseli"]);
         return coludo;
     }());
     howi.coludo = coludo;
@@ -5430,6 +5525,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(germaini.prototype, ["sharpei", "palmarum"]);
         return germaini;
     }(gabriellae.amicus));
     argurus.germaini = germaini;
@@ -5504,6 +5600,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(stolzmanni.prototype, ["riparius", "dhofarensis", "tricolor", "gardneri", "walleri", "talpoides", "pallipes", "lagurus", "hipposideros", "griselda", "florium"]);
         return stolzmanni;
     }());
     sagitta.stolzmanni = stolzmanni;
@@ -5592,6 +5689,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(melanops.prototype, ["blarina", "harwoodi", "ashaninka", "wiedii", "godmani", "condorensis", "xerophila", "laminatus", "archeri", "hidalgo", "unicolor", "philippii", "bocagei"]);
         return melanops;
     }(minutus.inez));
     dammermani.melanops = melanops;
@@ -5650,6 +5748,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(peninsulae.prototype, ["aitkeni", "novaeangliae", "olallae", "anselli", "timminsi", "sordidus", "telfordi", "cavernarum"]);
         return peninsulae;
     }(patas.uralensis));
     argurus.peninsulae = peninsulae;
@@ -5736,6 +5835,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(netscheri.prototype, ["gravis", "ruschii", "tricuspidatus", "fernandezi", "colletti", "microbullatus", "eburneae", "tatei", "millardi", "pruinosus", "delator", "nyikae", "ruemmleri"]);
         return netscheri;
     }());
     argurus.netscheri = netscheri;
@@ -5824,6 +5924,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(Praseodymium.prototype, ["clara", "spectabilis", "kamensis", "ruddi", "bartelsii", "yerbabuenae", "davidi", "pilirostris", "catherinae", "frontata", "Terbium", "thomensis", "soricinus"]);
         return Praseodymium;
     }(ruatanica.hector));
     ruatanica.Praseodymium = Praseodymium;
@@ -5840,6 +5941,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(johorensis.prototype, ["maini"]);
         return johorensis;
     }(lutreolus.punicus));
     caurinus.johorensis = johorensis;
@@ -5854,6 +5956,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(luctuosa.prototype, ["loriae"]);
         return luctuosa;
     }());
     argurus.luctuosa = luctuosa;
@@ -5910,6 +6013,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(setulosus.prototype, ["duthieae", "guereza", "buselaphus", "nuttalli", "pelii", "tunneyi", "lamula", "vampyrus"]);
         return setulosus;
     }());
     panamensis.setulosus = setulosus;
@@ -5948,6 +6052,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(rosalia.prototype, ["palmeri", "baeops", "ozensis", "creaghi", "montivaga"]);
         return rosalia;
     }());
     petrophilus.rosalia = rosalia;
@@ -5994,6 +6099,7 @@ var imperfecta;
             (function () { var y = _this; });
             return x;
         };
+        __names(psilurus.prototype, ["socialis", "lundi", "araeum", "calamianensis", "petersoni", "nitela"]);
         return psilurus;
     }(lutreolus.punicus));
     caurinus.psilurus = psilurus;
diff --git a/tests/baselines/reference/restParameterAssignmentCompatibility.js b/tests/baselines/reference/restParameterAssignmentCompatibility.js
index 01472c78c1ec5..95a9fa8a7b270 100644
--- a/tests/baselines/reference/restParameterAssignmentCompatibility.js
+++ b/tests/baselines/reference/restParameterAssignmentCompatibility.js
@@ -27,6 +27,20 @@ var t1: T1;
 t1 = s; // Similar to above, but optionality does not matter here.
 
 //// [restParameterAssignmentCompatibility.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var T = (function () {
     function T() {
     }
@@ -36,6 +50,7 @@ var T = (function () {
             p3[_i] = arguments[_i];
         }
     };
+    __names(T.prototype, ["m"]);
     return T;
 }());
 var S = (function () {
@@ -43,6 +58,7 @@ var S = (function () {
     }
     S.prototype.m = function (p1, p2) {
     };
+    __names(S.prototype, ["m"]);
     return S;
 }());
 var t;
@@ -55,6 +71,7 @@ var T1 = (function () {
     }
     T1.prototype.m = function (p1, p2) {
     };
+    __names(T1.prototype, ["m"]);
     return T1;
 }());
 var t1;
diff --git a/tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js b/tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js
index 5c1db2c62e1b3..36abda46dde20 100644
--- a/tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js
+++ b/tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js
@@ -28,6 +28,20 @@ var b = {
 
 //// [restParameterWithoutAnnotationIsAnyArray.js]
 // Rest parameters without type annotations are 'any', errors only for the functions with 2 rest params
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
@@ -55,6 +69,7 @@ var C = (function () {
             x[_i] = arguments[_i];
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/restParametersOfNonArrayTypes.js b/tests/baselines/reference/restParametersOfNonArrayTypes.js
index 6714516772083..03f4d5515468b 100644
--- a/tests/baselines/reference/restParametersOfNonArrayTypes.js
+++ b/tests/baselines/reference/restParametersOfNonArrayTypes.js
@@ -27,6 +27,20 @@ var b = {
 
 //// [restParametersOfNonArrayTypes.js]
 // Rest parameters must be an array type if they have a type annotation, so all these are errors
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
@@ -54,6 +68,7 @@ var C = (function () {
             x[_i] = arguments[_i];
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/restParametersOfNonArrayTypes2.js b/tests/baselines/reference/restParametersOfNonArrayTypes2.js
index 7df2458a27b3f..2f3a6addadd47 100644
--- a/tests/baselines/reference/restParametersOfNonArrayTypes2.js
+++ b/tests/baselines/reference/restParametersOfNonArrayTypes2.js
@@ -59,6 +59,20 @@ var b2 = {
 //// [restParametersOfNonArrayTypes2.js]
 // Rest parameters must be an array type if they have a type annotation, 
 // user defined subtypes of array do not count, all of these are errors
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
@@ -86,6 +100,7 @@ var C = (function () {
             x[_i] = arguments[_i];
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
@@ -136,6 +151,7 @@ var C2 = (function () {
             x[_i] = arguments[_i];
         }
     };
+    __names(C2.prototype, ["foo"]);
     return C2;
 }());
 var a2;
diff --git a/tests/baselines/reference/restParametersWithArrayTypeAnnotations.js b/tests/baselines/reference/restParametersWithArrayTypeAnnotations.js
index 1004fdfcbcb41..0b0b7c262c305 100644
--- a/tests/baselines/reference/restParametersWithArrayTypeAnnotations.js
+++ b/tests/baselines/reference/restParametersWithArrayTypeAnnotations.js
@@ -54,6 +54,20 @@ var b2 = {
 
 //// [restParametersWithArrayTypeAnnotations.js]
 // Rest parameters must be an array type if they have a type annotation, errors only for the functions with 2 rest params
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo() {
     var x = [];
     for (var _i = 0; _i < arguments.length; _i++) {
@@ -81,6 +95,7 @@ var C = (function () {
             x[_i] = arguments[_i];
         }
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
@@ -131,6 +146,7 @@ var C2 = (function () {
             x[_i] = arguments[_i];
         }
     };
+    __names(C2.prototype, ["foo"]);
     return C2;
 }());
 var a2;
diff --git a/tests/baselines/reference/returnInConstructor1.js b/tests/baselines/reference/returnInConstructor1.js
index 6bdcc0cb6a29d..325034d21d996 100644
--- a/tests/baselines/reference/returnInConstructor1.js
+++ b/tests/baselines/reference/returnInConstructor1.js
@@ -67,6 +67,20 @@ class I extends G {
 
 
 //// [returnInConstructor1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -82,6 +96,7 @@ var A = (function () {
         return;
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function () {
@@ -89,6 +104,7 @@ var B = (function () {
         return 1; // error
     }
     B.prototype.foo = function () { };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function () {
@@ -96,6 +112,7 @@ var C = (function () {
         return this;
     }
     C.prototype.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function () {
@@ -103,6 +120,7 @@ var D = (function () {
         return "test"; // error
     }
     D.prototype.foo = function () { };
+    __names(D.prototype, ["foo"]);
     return D;
 }());
 var E = (function () {
@@ -123,6 +141,7 @@ var G = (function () {
     }
     G.prototype.test1 = function () { };
     G.prototype.foo = function () { };
+    __names(G.prototype, ["test1", "foo"]);
     return G;
 }());
 var H = (function (_super) {
diff --git a/tests/baselines/reference/returnStatements.js b/tests/baselines/reference/returnStatements.js
index 617911be75977..a89ca53311b74 100644
--- a/tests/baselines/reference/returnStatements.js
+++ b/tests/baselines/reference/returnStatements.js
@@ -25,6 +25,20 @@ function fn13(): C { return null; }
 
 
 //// [returnStatements.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -48,6 +62,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.dispose = function () { };
+    __names(C.prototype, ["dispose"]);
     return C;
 }());
 var D = (function (_super) {
diff --git a/tests/baselines/reference/returnTypeTypeArguments.js b/tests/baselines/reference/returnTypeTypeArguments.js
index ade97159091fc..dec5aad88b55a 100644
--- a/tests/baselines/reference/returnTypeTypeArguments.js
+++ b/tests/baselines/reference/returnTypeTypeArguments.js
@@ -77,6 +77,20 @@ declare var a: {
 
 
 //// [returnTypeTypeArguments.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var One = (function () {
     function One() {
     }
@@ -107,6 +121,7 @@ var C = (function () {
     C.prototype.B1 = function () { return null; };
     C.prototype.B2 = function () { return null; };
     C.prototype.B3 = function () { return null; };
+    __names(C.prototype, ["A1", "A2", "A3", "B1", "B2", "B3"]);
     return C;
 }());
 var D = (function () {
@@ -117,6 +132,7 @@ var D = (function () {
     D.prototype.B1 = function () { return null; };
     D.prototype.B2 = function () { return null; };
     D.prototype.B3 = function () { return null; };
+    __names(D.prototype, ["A2", "A3", "B1", "B2", "B3"]);
     return D;
 }());
 var Y = (function () {
diff --git a/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js b/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js
index c72fe6dde7d10..047c14bbf1c80 100644
--- a/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js
+++ b/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js
@@ -19,6 +19,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -34,5 +48,6 @@ var D = (function (_super) {
         this.p = 1;
         s = 1;
     };
+    __names(D.prototype, ["c"]);
     return D;
 }(C));
diff --git a/tests/baselines/reference/scopeCheckInsidePublicMethod1.js b/tests/baselines/reference/scopeCheckInsidePublicMethod1.js
index 46ee1fc719d93..c4b6a5606f570 100644
--- a/tests/baselines/reference/scopeCheckInsidePublicMethod1.js
+++ b/tests/baselines/reference/scopeCheckInsidePublicMethod1.js
@@ -7,11 +7,26 @@ class C {
 }
 
 //// [scopeCheckInsidePublicMethod1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.a = function () {
         s = 1; // ERR
     };
+    __names(C.prototype, ["a"]);
     return C;
 }());
diff --git a/tests/baselines/reference/scopeResolutionIdentifiers.js b/tests/baselines/reference/scopeResolutionIdentifiers.js
index ca45a95239ec5..f5315525c7e3c 100644
--- a/tests/baselines/reference/scopeResolutionIdentifiers.js
+++ b/tests/baselines/reference/scopeResolutionIdentifiers.js
@@ -40,6 +40,20 @@ module M3 {
 
 //// [scopeResolutionIdentifiers.js]
 // EveryType used in a nested scope of a different EveryType with the same name, type of the identifier is the one defined in the inner scope
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var s;
 var M1;
 (function (M1) {
@@ -65,6 +79,7 @@ var C = (function () {
         var p = this.n;
         var p;
     };
+    __names(C.prototype, ["x"]);
     return C;
 }());
 var M3;
diff --git a/tests/baselines/reference/selfInCallback.js b/tests/baselines/reference/selfInCallback.js
index a0b363ae08154..0636775eff693 100644
--- a/tests/baselines/reference/selfInCallback.js
+++ b/tests/baselines/reference/selfInCallback.js
@@ -8,6 +8,20 @@ class C {
 }
 
 //// [selfInCallback.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
         this.p1 = 0;
@@ -17,5 +31,6 @@ var C = (function () {
         var _this = this;
         this.callback(function () { _this.p1 + 1; });
     };
+    __names(C.prototype, ["callback", "doit"]);
     return C;
 }());
diff --git a/tests/baselines/reference/selfInLambdas.js b/tests/baselines/reference/selfInLambdas.js
index b143c0c9e4ea3..e114cb5829437 100644
--- a/tests/baselines/reference/selfInLambdas.js
+++ b/tests/baselines/reference/selfInLambdas.js
@@ -47,6 +47,20 @@ class X {
 
 
 //// [selfInLambdas.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var o = {
     counter: 0,
     start: function () {
@@ -72,5 +86,6 @@ var X = (function () {
         };
         outer();
     };
+    __names(X.prototype, ["foo"]);
     return X;
 }());
diff --git a/tests/baselines/reference/selfReferencesInFunctionParameters.js b/tests/baselines/reference/selfReferencesInFunctionParameters.js
index 5dd662cf16959..e5208d8907d37 100644
--- a/tests/baselines/reference/selfReferencesInFunctionParameters.js
+++ b/tests/baselines/reference/selfReferencesInFunctionParameters.js
@@ -14,6 +14,20 @@ class C {
 }
 
 //// [selfReferencesInFunctionParameters.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x) {
     if (x === void 0) { x = x; }
 }
@@ -30,5 +44,6 @@ var C = (function () {
         if (a === void 0) { a = ""; }
         if (b === void 0) { b = b.toString(); }
     };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
diff --git a/tests/baselines/reference/shadowPrivateMembers.js b/tests/baselines/reference/shadowPrivateMembers.js
index ce0fd333b914b..8d888128a4f40 100644
--- a/tests/baselines/reference/shadowPrivateMembers.js
+++ b/tests/baselines/reference/shadowPrivateMembers.js
@@ -4,6 +4,20 @@ class derived extends base { private n() {} }
 
 
 //// [shadowPrivateMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -18,6 +32,7 @@ var base = (function () {
     function base() {
     }
     base.prototype.n = function () { };
+    __names(base.prototype, ["n"]);
     return base;
 }());
 var derived = (function (_super) {
@@ -26,5 +41,6 @@ var derived = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     derived.prototype.n = function () { };
+    __names(derived.prototype, ["n"]);
     return derived;
 }(base));
diff --git a/tests/baselines/reference/sigantureIsSubTypeIfTheyAreIdentical.js b/tests/baselines/reference/sigantureIsSubTypeIfTheyAreIdentical.js
index 39b67f9026d94..cd15451c7db33 100644
--- a/tests/baselines/reference/sigantureIsSubTypeIfTheyAreIdentical.js
+++ b/tests/baselines/reference/sigantureIsSubTypeIfTheyAreIdentical.js
@@ -9,11 +9,26 @@ class CacheService implements ICache { // Should not error that property type of
 }
 
 //// [sigantureIsSubTypeIfTheyAreIdentical.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var CacheService = (function () {
     function CacheService() {
     }
     CacheService.prototype.get = function (key) {
         return undefined;
     };
+    __names(CacheService.prototype, ["get"]);
     return CacheService;
 }());
diff --git a/tests/baselines/reference/signatureInstantiationWithRecursiveConstraints.js b/tests/baselines/reference/signatureInstantiationWithRecursiveConstraints.js
index 0be7fa1444d00..77abf5d441ad2 100644
--- a/tests/baselines/reference/signatureInstantiationWithRecursiveConstraints.js
+++ b/tests/baselines/reference/signatureInstantiationWithRecursiveConstraints.js
@@ -15,16 +15,32 @@ const myVar: Foo = new Bar();
 //// [signatureInstantiationWithRecursiveConstraints.js]
 "use strict";
 // Repro from #17148
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
     Foo.prototype.myFunc = function (arg) { };
+    __names(Foo.prototype, ["myFunc"]);
     return Foo;
 }());
 var Bar = (function () {
     function Bar() {
     }
     Bar.prototype.myFunc = function (arg) { };
+    __names(Bar.prototype, ["myFunc"]);
     return Bar;
 }());
 var myVar = new Bar();
diff --git a/tests/baselines/reference/sourceMap-Comments.js b/tests/baselines/reference/sourceMap-Comments.js
index e8177d5752c06..3bb266598faf8 100644
--- a/tests/baselines/reference/sourceMap-Comments.js
+++ b/tests/baselines/reference/sourceMap-Comments.js
@@ -21,6 +21,20 @@ module sas.tools {
 
 
 //// [sourceMap-Comments.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var sas;
 (function (sas) {
     var tools;
@@ -42,6 +56,7 @@ var sas;
                         break;
                 }
             };
+            __names(Test.prototype, ["doX"]);
             return Test;
         }());
         tools.Test = Test;
diff --git a/tests/baselines/reference/sourceMap-Comments.js.map b/tests/baselines/reference/sourceMap-Comments.js.map
index 1905d050a0b97..9519c36e5e28f 100644
--- a/tests/baselines/reference/sourceMap-Comments.js.map
+++ b/tests/baselines/reference/sourceMap-Comments.js.map
@@ -1,2 +1,2 @@
 //// [sourceMap-Comments.js.map]
-{"version":3,"file":"sourceMap-Comments.js","sourceRoot":"","sources":["sourceMap-Comments.ts"],"names":[],"mappings":"AAAA,IAAO,GAAG,CAkBT;AAlBD,WAAO,GAAG;IAAC,IAAA,KAAK,CAkBf;IAlBU,WAAA,KAAK;QACZ;YAAA;YAeA,CAAC;YAdU,kBAAG,GAAV;gBACI,IAAI,CAAC,GAAW,CAAC,CAAC;gBAClB,MAAM,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;oBACR,KAAK,CAAC;wBACF,KAAK,CAAC;oBACV,KAAK,CAAC;wBACF,gBAAgB;wBAChB,gBAAgB;wBAChB,KAAK,CAAC;oBACV,KAAK,CAAC;wBACF,WAAW;wBACX,KAAK,CAAC;gBACd,CAAC;YACL,CAAC;YACL,WAAC;QAAD,CAAC,AAfD,IAeC;QAfY,UAAI,OAehB,CAAA;IAEL,CAAC,EAlBU,KAAK,GAAL,SAAK,KAAL,SAAK,QAkBf;AAAD,CAAC,EAlBM,GAAG,KAAH,GAAG,QAkBT"}
\ No newline at end of file
+{"version":3,"file":"sourceMap-Comments.js","sourceRoot":"","sources":["sourceMap-Comments.ts"],"names":[],"mappings":";;;;;;;;;;;;;;AAAA,IAAO,GAAG,CAkBT;AAlBD,WAAO,GAAG;IAAC,IAAA,KAAK,CAkBf;IAlBU,WAAA,KAAK;QACZ;YAAA;YAeA,CAAC;YAdU,kBAAG,GAAV;gBACI,IAAI,CAAC,GAAW,CAAC,CAAC;gBAClB,MAAM,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;oBACR,KAAK,CAAC;wBACF,KAAK,CAAC;oBACV,KAAK,CAAC;wBACF,gBAAgB;wBAChB,gBAAgB;wBAChB,KAAK,CAAC;oBACV,KAAK,CAAC;wBACF,WAAW;wBACX,KAAK,CAAC;gBACd,CAAC;YACL,CAAC;;YACL,WAAC;QAAD,CAAC,AAfD,IAeC;QAfY,UAAI,OAehB,CAAA;IAEL,CAAC,EAlBU,KAAK,GAAL,SAAK,KAAL,SAAK,QAkBf;AAAD,CAAC,EAlBM,GAAG,KAAH,GAAG,QAkBT"}
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMap-Comments.sourcemap.txt b/tests/baselines/reference/sourceMap-Comments.sourcemap.txt
index f6009f3fc344e..e8503301b02bc 100644
--- a/tests/baselines/reference/sourceMap-Comments.sourcemap.txt
+++ b/tests/baselines/reference/sourceMap-Comments.sourcemap.txt
@@ -8,6 +8,20 @@ sources: sourceMap-Comments.ts
 emittedFile:tests/cases/compiler/sourceMap-Comments.js
 sourceFile:sourceMap-Comments.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>var sas;
 1 >
 2 >^^^^
@@ -36,10 +50,10 @@ sourceFile:sourceMap-Comments.ts
   >           }
   >       
   >       }
-1 >Emitted(1, 1) Source(1, 1) + SourceIndex(0)
-2 >Emitted(1, 5) Source(1, 8) + SourceIndex(0)
-3 >Emitted(1, 8) Source(1, 11) + SourceIndex(0)
-4 >Emitted(1, 9) Source(19, 2) + SourceIndex(0)
+1 >Emitted(15, 1) Source(1, 1) + SourceIndex(0)
+2 >Emitted(15, 5) Source(1, 8) + SourceIndex(0)
+3 >Emitted(15, 8) Source(1, 11) + SourceIndex(0)
+4 >Emitted(15, 9) Source(19, 2) + SourceIndex(0)
 ---
 >>>(function (sas) {
 1->
@@ -49,9 +63,9 @@ sourceFile:sourceMap-Comments.ts
 1->
 2 >module 
 3 >           sas
-1->Emitted(2, 1) Source(1, 1) + SourceIndex(0)
-2 >Emitted(2, 12) Source(1, 8) + SourceIndex(0)
-3 >Emitted(2, 15) Source(1, 11) + SourceIndex(0)
+1->Emitted(16, 1) Source(1, 1) + SourceIndex(0)
+2 >Emitted(16, 12) Source(1, 8) + SourceIndex(0)
+3 >Emitted(16, 15) Source(1, 11) + SourceIndex(0)
 ---
 >>>    var tools;
 1->^^^^
@@ -81,10 +95,10 @@ sourceFile:sourceMap-Comments.ts
   >                 }
   >             
   >             }
-1->Emitted(3, 5) Source(1, 12) + SourceIndex(0)
-2 >Emitted(3, 9) Source(1, 12) + SourceIndex(0)
-3 >Emitted(3, 14) Source(1, 17) + SourceIndex(0)
-4 >Emitted(3, 15) Source(19, 2) + SourceIndex(0)
+1->Emitted(17, 5) Source(1, 12) + SourceIndex(0)
+2 >Emitted(17, 9) Source(1, 12) + SourceIndex(0)
+3 >Emitted(17, 14) Source(1, 17) + SourceIndex(0)
+4 >Emitted(17, 15) Source(19, 2) + SourceIndex(0)
 ---
 >>>    (function (tools) {
 1->^^^^
@@ -94,22 +108,22 @@ sourceFile:sourceMap-Comments.ts
 1->
 2 >    
 3 >               tools
-1->Emitted(4, 5) Source(1, 12) + SourceIndex(0)
-2 >Emitted(4, 16) Source(1, 12) + SourceIndex(0)
-3 >Emitted(4, 21) Source(1, 17) + SourceIndex(0)
+1->Emitted(18, 5) Source(1, 12) + SourceIndex(0)
+2 >Emitted(18, 16) Source(1, 12) + SourceIndex(0)
+3 >Emitted(18, 21) Source(1, 17) + SourceIndex(0)
 ---
 >>>        var Test = (function () {
 1->^^^^^^^^
 2 >        ^^^^^^^^^^^^^^^^^^^^^^->
 1-> {
   >    
-1->Emitted(5, 9) Source(2, 5) + SourceIndex(0)
+1->Emitted(19, 9) Source(2, 5) + SourceIndex(0)
 ---
 >>>            function Test() {
 1->^^^^^^^^^^^^
 2 >            ^^->
 1->
-1->Emitted(6, 13) Source(2, 5) + SourceIndex(0)
+1->Emitted(20, 13) Source(2, 5) + SourceIndex(0)
 ---
 >>>            }
 1->^^^^^^^^^^^^
@@ -132,8 +146,8 @@ sourceFile:sourceMap-Comments.ts
   >        }
   >    
 2 >            }
-1->Emitted(7, 13) Source(17, 5) + SourceIndex(0)
-2 >Emitted(7, 14) Source(17, 6) + SourceIndex(0)
+1->Emitted(21, 13) Source(17, 5) + SourceIndex(0)
+2 >Emitted(21, 14) Source(17, 6) + SourceIndex(0)
 ---
 >>>            Test.prototype.doX = function () {
 1->^^^^^^^^^^^^
@@ -142,9 +156,9 @@ sourceFile:sourceMap-Comments.ts
 1->
 2 >            doX
 3 >                              
-1->Emitted(8, 13) Source(3, 16) + SourceIndex(0)
-2 >Emitted(8, 31) Source(3, 19) + SourceIndex(0)
-3 >Emitted(8, 34) Source(3, 9) + SourceIndex(0)
+1->Emitted(22, 13) Source(3, 16) + SourceIndex(0)
+2 >Emitted(22, 31) Source(3, 19) + SourceIndex(0)
+3 >Emitted(22, 34) Source(3, 9) + SourceIndex(0)
 ---
 >>>                var f = 2;
 1 >^^^^^^^^^^^^^^^^
@@ -161,12 +175,12 @@ sourceFile:sourceMap-Comments.ts
 4 >                     : number = 
 5 >                        2
 6 >                         ;
-1 >Emitted(9, 17) Source(4, 13) + SourceIndex(0)
-2 >Emitted(9, 21) Source(4, 17) + SourceIndex(0)
-3 >Emitted(9, 22) Source(4, 18) + SourceIndex(0)
-4 >Emitted(9, 25) Source(4, 29) + SourceIndex(0)
-5 >Emitted(9, 26) Source(4, 30) + SourceIndex(0)
-6 >Emitted(9, 27) Source(4, 31) + SourceIndex(0)
+1 >Emitted(23, 17) Source(4, 13) + SourceIndex(0)
+2 >Emitted(23, 21) Source(4, 17) + SourceIndex(0)
+3 >Emitted(23, 22) Source(4, 18) + SourceIndex(0)
+4 >Emitted(23, 25) Source(4, 29) + SourceIndex(0)
+5 >Emitted(23, 26) Source(4, 30) + SourceIndex(0)
+6 >Emitted(23, 27) Source(4, 31) + SourceIndex(0)
 ---
 >>>                switch (f) {
 1->^^^^^^^^^^^^^^^^
@@ -186,14 +200,14 @@ sourceFile:sourceMap-Comments.ts
 6 >                         )
 7 >                           
 8 >                           {
-1->Emitted(10, 17) Source(5, 13) + SourceIndex(0)
-2 >Emitted(10, 23) Source(5, 19) + SourceIndex(0)
-3 >Emitted(10, 24) Source(5, 20) + SourceIndex(0)
-4 >Emitted(10, 25) Source(5, 21) + SourceIndex(0)
-5 >Emitted(10, 26) Source(5, 22) + SourceIndex(0)
-6 >Emitted(10, 27) Source(5, 23) + SourceIndex(0)
-7 >Emitted(10, 28) Source(5, 24) + SourceIndex(0)
-8 >Emitted(10, 29) Source(5, 25) + SourceIndex(0)
+1->Emitted(24, 17) Source(5, 13) + SourceIndex(0)
+2 >Emitted(24, 23) Source(5, 19) + SourceIndex(0)
+3 >Emitted(24, 24) Source(5, 20) + SourceIndex(0)
+4 >Emitted(24, 25) Source(5, 21) + SourceIndex(0)
+5 >Emitted(24, 26) Source(5, 22) + SourceIndex(0)
+6 >Emitted(24, 27) Source(5, 23) + SourceIndex(0)
+7 >Emitted(24, 28) Source(5, 24) + SourceIndex(0)
+8 >Emitted(24, 29) Source(5, 25) + SourceIndex(0)
 ---
 >>>                    case 1:
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -204,9 +218,9 @@ sourceFile:sourceMap-Comments.ts
   >                
 2 >                    case 
 3 >                         1
-1 >Emitted(11, 21) Source(6, 17) + SourceIndex(0)
-2 >Emitted(11, 26) Source(6, 22) + SourceIndex(0)
-3 >Emitted(11, 27) Source(6, 23) + SourceIndex(0)
+1 >Emitted(25, 21) Source(6, 17) + SourceIndex(0)
+2 >Emitted(25, 26) Source(6, 22) + SourceIndex(0)
+3 >Emitted(25, 27) Source(6, 23) + SourceIndex(0)
 ---
 >>>                        break;
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -216,9 +230,9 @@ sourceFile:sourceMap-Comments.ts
   >                    
 2 >                        break
 3 >                             ;
-1->Emitted(12, 25) Source(7, 21) + SourceIndex(0)
-2 >Emitted(12, 30) Source(7, 26) + SourceIndex(0)
-3 >Emitted(12, 31) Source(7, 27) + SourceIndex(0)
+1->Emitted(26, 25) Source(7, 21) + SourceIndex(0)
+2 >Emitted(26, 30) Source(7, 26) + SourceIndex(0)
+3 >Emitted(26, 31) Source(7, 27) + SourceIndex(0)
 ---
 >>>                    case 2:
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -229,9 +243,9 @@ sourceFile:sourceMap-Comments.ts
   >                
 2 >                    case 
 3 >                         2
-1 >Emitted(13, 21) Source(8, 17) + SourceIndex(0)
-2 >Emitted(13, 26) Source(8, 22) + SourceIndex(0)
-3 >Emitted(13, 27) Source(8, 23) + SourceIndex(0)
+1 >Emitted(27, 21) Source(8, 17) + SourceIndex(0)
+2 >Emitted(27, 26) Source(8, 22) + SourceIndex(0)
+3 >Emitted(27, 27) Source(8, 23) + SourceIndex(0)
 ---
 >>>                        //line comment 1
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -240,8 +254,8 @@ sourceFile:sourceMap-Comments.ts
 1->:
   >                    
 2 >                        //line comment 1
-1->Emitted(14, 25) Source(9, 21) + SourceIndex(0)
-2 >Emitted(14, 41) Source(9, 37) + SourceIndex(0)
+1->Emitted(28, 25) Source(9, 21) + SourceIndex(0)
+2 >Emitted(28, 41) Source(9, 37) + SourceIndex(0)
 ---
 >>>                        //line comment 2
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -249,8 +263,8 @@ sourceFile:sourceMap-Comments.ts
 1->
   >                    
 2 >                        //line comment 2
-1->Emitted(15, 25) Source(10, 21) + SourceIndex(0)
-2 >Emitted(15, 41) Source(10, 37) + SourceIndex(0)
+1->Emitted(29, 25) Source(10, 21) + SourceIndex(0)
+2 >Emitted(29, 41) Source(10, 37) + SourceIndex(0)
 ---
 >>>                        break;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -260,9 +274,9 @@ sourceFile:sourceMap-Comments.ts
   >                    
 2 >                        break
 3 >                             ;
-1 >Emitted(16, 25) Source(11, 21) + SourceIndex(0)
-2 >Emitted(16, 30) Source(11, 26) + SourceIndex(0)
-3 >Emitted(16, 31) Source(11, 27) + SourceIndex(0)
+1 >Emitted(30, 25) Source(11, 21) + SourceIndex(0)
+2 >Emitted(30, 30) Source(11, 26) + SourceIndex(0)
+3 >Emitted(30, 31) Source(11, 27) + SourceIndex(0)
 ---
 >>>                    case 3:
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -273,9 +287,9 @@ sourceFile:sourceMap-Comments.ts
   >                
 2 >                    case 
 3 >                         3
-1 >Emitted(17, 21) Source(12, 17) + SourceIndex(0)
-2 >Emitted(17, 26) Source(12, 22) + SourceIndex(0)
-3 >Emitted(17, 27) Source(12, 23) + SourceIndex(0)
+1 >Emitted(31, 21) Source(12, 17) + SourceIndex(0)
+2 >Emitted(31, 26) Source(12, 22) + SourceIndex(0)
+3 >Emitted(31, 27) Source(12, 23) + SourceIndex(0)
 ---
 >>>                        //a comment
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -283,8 +297,8 @@ sourceFile:sourceMap-Comments.ts
 1->:
   >                    
 2 >                        //a comment
-1->Emitted(18, 25) Source(13, 21) + SourceIndex(0)
-2 >Emitted(18, 36) Source(13, 32) + SourceIndex(0)
+1->Emitted(32, 25) Source(13, 21) + SourceIndex(0)
+2 >Emitted(32, 36) Source(13, 32) + SourceIndex(0)
 ---
 >>>                        break;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -294,9 +308,9 @@ sourceFile:sourceMap-Comments.ts
   >                    
 2 >                        break
 3 >                             ;
-1 >Emitted(19, 25) Source(14, 21) + SourceIndex(0)
-2 >Emitted(19, 30) Source(14, 26) + SourceIndex(0)
-3 >Emitted(19, 31) Source(14, 27) + SourceIndex(0)
+1 >Emitted(33, 25) Source(14, 21) + SourceIndex(0)
+2 >Emitted(33, 30) Source(14, 26) + SourceIndex(0)
+3 >Emitted(33, 31) Source(14, 27) + SourceIndex(0)
 ---
 >>>                }
 1 >^^^^^^^^^^^^^^^^
@@ -304,27 +318,28 @@ sourceFile:sourceMap-Comments.ts
 1 >
   >            
 2 >                }
-1 >Emitted(20, 17) Source(15, 13) + SourceIndex(0)
-2 >Emitted(20, 18) Source(15, 14) + SourceIndex(0)
+1 >Emitted(34, 17) Source(15, 13) + SourceIndex(0)
+2 >Emitted(34, 18) Source(15, 14) + SourceIndex(0)
 ---
 >>>            };
 1 >^^^^^^^^^^^^
 2 >            ^
-3 >             ^^^^^^^^^^^^->
+3 >             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >        
 2 >            }
-1 >Emitted(21, 13) Source(16, 9) + SourceIndex(0)
-2 >Emitted(21, 14) Source(16, 10) + SourceIndex(0)
+1 >Emitted(35, 13) Source(16, 9) + SourceIndex(0)
+2 >Emitted(35, 14) Source(16, 10) + SourceIndex(0)
 ---
+>>>            __names(Test.prototype, ["doX"]);
 >>>            return Test;
 1->^^^^^^^^^^^^
 2 >            ^^^^^^^^^^^
 1->
   >    
 2 >            }
-1->Emitted(22, 13) Source(17, 5) + SourceIndex(0)
-2 >Emitted(22, 24) Source(17, 6) + SourceIndex(0)
+1->Emitted(37, 13) Source(17, 5) + SourceIndex(0)
+2 >Emitted(37, 24) Source(17, 6) + SourceIndex(0)
 ---
 >>>        }());
 1 >^^^^^^^^
@@ -351,10 +366,10 @@ sourceFile:sourceMap-Comments.ts
   >                     }
   >                 }
   >             }
-1 >Emitted(23, 9) Source(17, 5) + SourceIndex(0)
-2 >Emitted(23, 10) Source(17, 6) + SourceIndex(0)
-3 >Emitted(23, 10) Source(2, 5) + SourceIndex(0)
-4 >Emitted(23, 14) Source(17, 6) + SourceIndex(0)
+1 >Emitted(38, 9) Source(17, 5) + SourceIndex(0)
+2 >Emitted(38, 10) Source(17, 6) + SourceIndex(0)
+3 >Emitted(38, 10) Source(2, 5) + SourceIndex(0)
+4 >Emitted(38, 14) Source(17, 6) + SourceIndex(0)
 ---
 >>>        tools.Test = Test;
 1->^^^^^^^^
@@ -381,10 +396,10 @@ sourceFile:sourceMap-Comments.ts
   >                          }
   >                      }
 4 >                         
-1->Emitted(24, 9) Source(2, 18) + SourceIndex(0)
-2 >Emitted(24, 19) Source(2, 22) + SourceIndex(0)
-3 >Emitted(24, 26) Source(17, 6) + SourceIndex(0)
-4 >Emitted(24, 27) Source(17, 6) + SourceIndex(0)
+1->Emitted(39, 9) Source(2, 18) + SourceIndex(0)
+2 >Emitted(39, 19) Source(2, 22) + SourceIndex(0)
+3 >Emitted(39, 26) Source(17, 6) + SourceIndex(0)
+4 >Emitted(39, 27) Source(17, 6) + SourceIndex(0)
 ---
 >>>    })(tools = sas.tools || (sas.tools = {}));
 1->^^^^
@@ -425,15 +440,15 @@ sourceFile:sourceMap-Comments.ts
   >                                          }
   >                                      
   >                                      }
-1->Emitted(25, 5) Source(19, 1) + SourceIndex(0)
-2 >Emitted(25, 6) Source(19, 2) + SourceIndex(0)
-3 >Emitted(25, 8) Source(1, 12) + SourceIndex(0)
-4 >Emitted(25, 13) Source(1, 17) + SourceIndex(0)
-5 >Emitted(25, 16) Source(1, 12) + SourceIndex(0)
-6 >Emitted(25, 25) Source(1, 17) + SourceIndex(0)
-7 >Emitted(25, 30) Source(1, 12) + SourceIndex(0)
-8 >Emitted(25, 39) Source(1, 17) + SourceIndex(0)
-9 >Emitted(25, 47) Source(19, 2) + SourceIndex(0)
+1->Emitted(40, 5) Source(19, 1) + SourceIndex(0)
+2 >Emitted(40, 6) Source(19, 2) + SourceIndex(0)
+3 >Emitted(40, 8) Source(1, 12) + SourceIndex(0)
+4 >Emitted(40, 13) Source(1, 17) + SourceIndex(0)
+5 >Emitted(40, 16) Source(1, 12) + SourceIndex(0)
+6 >Emitted(40, 25) Source(1, 17) + SourceIndex(0)
+7 >Emitted(40, 30) Source(1, 12) + SourceIndex(0)
+8 >Emitted(40, 39) Source(1, 17) + SourceIndex(0)
+9 >Emitted(40, 47) Source(19, 2) + SourceIndex(0)
 ---
 >>>})(sas || (sas = {}));
 1 >
@@ -469,12 +484,12 @@ sourceFile:sourceMap-Comments.ts
   >                  }
   >              
   >              }
-1 >Emitted(26, 1) Source(19, 1) + SourceIndex(0)
-2 >Emitted(26, 2) Source(19, 2) + SourceIndex(0)
-3 >Emitted(26, 4) Source(1, 8) + SourceIndex(0)
-4 >Emitted(26, 7) Source(1, 11) + SourceIndex(0)
-5 >Emitted(26, 12) Source(1, 8) + SourceIndex(0)
-6 >Emitted(26, 15) Source(1, 11) + SourceIndex(0)
-7 >Emitted(26, 23) Source(19, 2) + SourceIndex(0)
+1 >Emitted(41, 1) Source(19, 1) + SourceIndex(0)
+2 >Emitted(41, 2) Source(19, 2) + SourceIndex(0)
+3 >Emitted(41, 4) Source(1, 8) + SourceIndex(0)
+4 >Emitted(41, 7) Source(1, 11) + SourceIndex(0)
+5 >Emitted(41, 12) Source(1, 8) + SourceIndex(0)
+6 >Emitted(41, 15) Source(1, 11) + SourceIndex(0)
+7 >Emitted(41, 23) Source(19, 2) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=sourceMap-Comments.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMap-FileWithComments.js b/tests/baselines/reference/sourceMap-FileWithComments.js
index 7fd47997c972c..d80dec6a2aec5 100644
--- a/tests/baselines/reference/sourceMap-FileWithComments.js
+++ b/tests/baselines/reference/sourceMap-FileWithComments.js
@@ -36,6 +36,20 @@ var p: IPoint = new Shapes.Point(3, 4);
 var dist = p.getDist();
 
 //// [sourceMap-FileWithComments.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // Module
 var Shapes;
 (function (Shapes) {
@@ -48,6 +62,7 @@ var Shapes;
         }
         // Instance member
         Point.prototype.getDist = function () { return Math.sqrt(this.x * this.x + this.y * this.y); };
+        __names(Point.prototype, ["getDist"]);
         // Static member
         Point.origin = new Point(0, 0);
         return Point;
diff --git a/tests/baselines/reference/sourceMap-FileWithComments.js.map b/tests/baselines/reference/sourceMap-FileWithComments.js.map
index 073fa862fc771..0a1b761f1ec9c 100644
--- a/tests/baselines/reference/sourceMap-FileWithComments.js.map
+++ b/tests/baselines/reference/sourceMap-FileWithComments.js.map
@@ -1,2 +1,2 @@
 //// [sourceMap-FileWithComments.js.map]
-{"version":3,"file":"sourceMap-FileWithComments.js","sourceRoot":"","sources":["sourceMap-FileWithComments.ts"],"names":[],"mappings":"AAKA,SAAS;AACT,IAAO,MAAM,CAwBZ;AAxBD,WAAO,MAAM;IAET,QAAQ;IACR;QACI,cAAc;QACd,eAAmB,CAAS,EAAS,CAAS;YAA3B,MAAC,GAAD,CAAC,CAAQ;YAAS,MAAC,GAAD,CAAC,CAAQ;QAAI,CAAC;QAEnD,kBAAkB;QAClB,uBAAO,GAAP,cAAY,MAAM,CAAC,IAAI,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,GAAG,IAAI,CAAC,CAAC,GAAG,IAAI,CAAC,CAAC,GAAG,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;QAElE,gBAAgB;QACT,YAAM,GAAG,IAAI,KAAK,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;QACpC,YAAC;KAAA,AATD,IASC;IATY,YAAK,QASjB,CAAA;IAED,+BAA+B;IAC/B,IAAI,CAAC,GAAG,EAAE,CAAC;IAEX;IACA,CAAC;IADe,UAAG,MAClB,CAAA;IAED;;MAEE;IACF,IAAI,CAAC,GAAG,EAAE,CAAC;AACf,CAAC,EAxBM,MAAM,KAAN,MAAM,QAwBZ;AAED,qBAAqB;AACrB,IAAI,CAAC,GAAW,IAAI,MAAM,CAAC,KAAK,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;AACvC,IAAI,IAAI,GAAG,CAAC,CAAC,OAAO,EAAE,CAAC"}
\ No newline at end of file
+{"version":3,"file":"sourceMap-FileWithComments.js","sourceRoot":"","sources":["sourceMap-FileWithComments.ts"],"names":[],"mappings":";;;;;;;;;;;;;;AAKA,SAAS;AACT,IAAO,MAAM,CAwBZ;AAxBD,WAAO,MAAM;IAET,QAAQ;IACR;QACI,cAAc;QACd,eAAmB,CAAS,EAAS,CAAS;YAA3B,MAAC,GAAD,CAAC,CAAQ;YAAS,MAAC,GAAD,CAAC,CAAQ;QAAI,CAAC;QAEnD,kBAAkB;QAClB,uBAAO,GAAP,cAAY,MAAM,CAAC,IAAI,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,GAAG,IAAI,CAAC,CAAC,GAAG,IAAI,CAAC,CAAC,GAAG,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;;QAElE,gBAAgB;QACT,YAAM,GAAG,IAAI,KAAK,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;QACpC,YAAC;KAAA,AATD,IASC;IATY,YAAK,QASjB,CAAA;IAED,+BAA+B;IAC/B,IAAI,CAAC,GAAG,EAAE,CAAC;IAEX;IACA,CAAC;IADe,UAAG,MAClB,CAAA;IAED;;MAEE;IACF,IAAI,CAAC,GAAG,EAAE,CAAC;AACf,CAAC,EAxBM,MAAM,KAAN,MAAM,QAwBZ;AAED,qBAAqB;AACrB,IAAI,CAAC,GAAW,IAAI,MAAM,CAAC,KAAK,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;AACvC,IAAI,IAAI,GAAG,CAAC,CAAC,OAAO,EAAE,CAAC"}
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMap-FileWithComments.sourcemap.txt b/tests/baselines/reference/sourceMap-FileWithComments.sourcemap.txt
index b53a0a4a7ce94..bcd7d9e1878e6 100644
--- a/tests/baselines/reference/sourceMap-FileWithComments.sourcemap.txt
+++ b/tests/baselines/reference/sourceMap-FileWithComments.sourcemap.txt
@@ -8,6 +8,20 @@ sources: sourceMap-FileWithComments.ts
 emittedFile:tests/cases/compiler/sourceMap-FileWithComments.js
 sourceFile:sourceMap-FileWithComments.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>// Module
 1 >
 2 >^^^^^^^^^
@@ -19,8 +33,8 @@ sourceFile:sourceMap-FileWithComments.ts
   >
   >
 2 >// Module
-1 >Emitted(1, 1) Source(6, 1) + SourceIndex(0)
-2 >Emitted(1, 10) Source(6, 10) + SourceIndex(0)
+1 >Emitted(15, 1) Source(6, 1) + SourceIndex(0)
+2 >Emitted(15, 10) Source(6, 10) + SourceIndex(0)
 ---
 >>>var Shapes;
 1->
@@ -57,10 +71,10 @@ sourceFile:sourceMap-FileWithComments.ts
   >              */
   >              var b = 10;
   >          }
-1->Emitted(2, 1) Source(7, 1) + SourceIndex(0)
-2 >Emitted(2, 5) Source(7, 8) + SourceIndex(0)
-3 >Emitted(2, 11) Source(7, 14) + SourceIndex(0)
-4 >Emitted(2, 12) Source(31, 2) + SourceIndex(0)
+1->Emitted(16, 1) Source(7, 1) + SourceIndex(0)
+2 >Emitted(16, 5) Source(7, 8) + SourceIndex(0)
+3 >Emitted(16, 11) Source(7, 14) + SourceIndex(0)
+4 >Emitted(16, 12) Source(31, 2) + SourceIndex(0)
 ---
 >>>(function (Shapes) {
 1->
@@ -69,9 +83,9 @@ sourceFile:sourceMap-FileWithComments.ts
 1->
 2 >module 
 3 >           Shapes
-1->Emitted(3, 1) Source(7, 1) + SourceIndex(0)
-2 >Emitted(3, 12) Source(7, 8) + SourceIndex(0)
-3 >Emitted(3, 18) Source(7, 14) + SourceIndex(0)
+1->Emitted(17, 1) Source(7, 1) + SourceIndex(0)
+2 >Emitted(17, 12) Source(7, 8) + SourceIndex(0)
+3 >Emitted(17, 18) Source(7, 14) + SourceIndex(0)
 ---
 >>>    // Class
 1 >^^^^
@@ -81,15 +95,15 @@ sourceFile:sourceMap-FileWithComments.ts
   >
   >    
 2 >    // Class
-1 >Emitted(4, 5) Source(9, 5) + SourceIndex(0)
-2 >Emitted(4, 13) Source(9, 13) + SourceIndex(0)
+1 >Emitted(18, 5) Source(9, 5) + SourceIndex(0)
+2 >Emitted(18, 13) Source(9, 13) + SourceIndex(0)
 ---
 >>>    var Point = (function () {
 1->^^^^
 2 >    ^^^^^^^^^^^^^^^^^^^->
 1->
   >    
-1->Emitted(5, 5) Source(10, 5) + SourceIndex(0)
+1->Emitted(19, 5) Source(10, 5) + SourceIndex(0)
 ---
 >>>        // Constructor
 1->^^^^^^^^
@@ -98,8 +112,8 @@ sourceFile:sourceMap-FileWithComments.ts
 1->export class Point implements IPoint {
   >        
 2 >        // Constructor
-1->Emitted(6, 9) Source(11, 9) + SourceIndex(0)
-2 >Emitted(6, 23) Source(11, 23) + SourceIndex(0)
+1->Emitted(20, 9) Source(11, 9) + SourceIndex(0)
+2 >Emitted(20, 23) Source(11, 23) + SourceIndex(0)
 ---
 >>>        function Point(x, y) {
 1->^^^^^^^^
@@ -113,11 +127,11 @@ sourceFile:sourceMap-FileWithComments.ts
 3 >                       x: number
 4 >                        , public 
 5 >                          y: number
-1->Emitted(7, 9) Source(12, 9) + SourceIndex(0)
-2 >Emitted(7, 24) Source(12, 28) + SourceIndex(0)
-3 >Emitted(7, 25) Source(12, 37) + SourceIndex(0)
-4 >Emitted(7, 27) Source(12, 46) + SourceIndex(0)
-5 >Emitted(7, 28) Source(12, 55) + SourceIndex(0)
+1->Emitted(21, 9) Source(12, 9) + SourceIndex(0)
+2 >Emitted(21, 24) Source(12, 28) + SourceIndex(0)
+3 >Emitted(21, 25) Source(12, 37) + SourceIndex(0)
+4 >Emitted(21, 27) Source(12, 46) + SourceIndex(0)
+5 >Emitted(21, 28) Source(12, 55) + SourceIndex(0)
 ---
 >>>            this.x = x;
 1 >^^^^^^^^^^^^
@@ -131,11 +145,11 @@ sourceFile:sourceMap-FileWithComments.ts
 3 >                  
 4 >                     x
 5 >                      : number
-1 >Emitted(8, 13) Source(12, 28) + SourceIndex(0)
-2 >Emitted(8, 19) Source(12, 29) + SourceIndex(0)
-3 >Emitted(8, 22) Source(12, 28) + SourceIndex(0)
-4 >Emitted(8, 23) Source(12, 29) + SourceIndex(0)
-5 >Emitted(8, 24) Source(12, 37) + SourceIndex(0)
+1 >Emitted(22, 13) Source(12, 28) + SourceIndex(0)
+2 >Emitted(22, 19) Source(12, 29) + SourceIndex(0)
+3 >Emitted(22, 22) Source(12, 28) + SourceIndex(0)
+4 >Emitted(22, 23) Source(12, 29) + SourceIndex(0)
+5 >Emitted(22, 24) Source(12, 37) + SourceIndex(0)
 ---
 >>>            this.y = y;
 1->^^^^^^^^^^^^
@@ -148,11 +162,11 @@ sourceFile:sourceMap-FileWithComments.ts
 3 >                  
 4 >                     y
 5 >                      : number
-1->Emitted(9, 13) Source(12, 46) + SourceIndex(0)
-2 >Emitted(9, 19) Source(12, 47) + SourceIndex(0)
-3 >Emitted(9, 22) Source(12, 46) + SourceIndex(0)
-4 >Emitted(9, 23) Source(12, 47) + SourceIndex(0)
-5 >Emitted(9, 24) Source(12, 55) + SourceIndex(0)
+1->Emitted(23, 13) Source(12, 46) + SourceIndex(0)
+2 >Emitted(23, 19) Source(12, 47) + SourceIndex(0)
+3 >Emitted(23, 22) Source(12, 46) + SourceIndex(0)
+4 >Emitted(23, 23) Source(12, 47) + SourceIndex(0)
+5 >Emitted(23, 24) Source(12, 55) + SourceIndex(0)
 ---
 >>>        }
 1 >^^^^^^^^
@@ -160,8 +174,8 @@ sourceFile:sourceMap-FileWithComments.ts
 3 >         ^^^^^^^^^^^^^^^^^^->
 1 >) { 
 2 >        }
-1 >Emitted(10, 9) Source(12, 59) + SourceIndex(0)
-2 >Emitted(10, 10) Source(12, 60) + SourceIndex(0)
+1 >Emitted(24, 9) Source(12, 59) + SourceIndex(0)
+2 >Emitted(24, 10) Source(12, 60) + SourceIndex(0)
 ---
 >>>        // Instance member
 1->^^^^^^^^
@@ -171,8 +185,8 @@ sourceFile:sourceMap-FileWithComments.ts
   >
   >        
 2 >        // Instance member
-1->Emitted(11, 9) Source(14, 9) + SourceIndex(0)
-2 >Emitted(11, 27) Source(14, 27) + SourceIndex(0)
+1->Emitted(25, 9) Source(14, 9) + SourceIndex(0)
+2 >Emitted(25, 27) Source(14, 27) + SourceIndex(0)
 ---
 >>>        Point.prototype.getDist = function () { return Math.sqrt(this.x * this.x + this.y * this.y); };
 1->^^^^^^^^
@@ -234,36 +248,37 @@ sourceFile:sourceMap-FileWithComments.ts
 27>                                                                                                   ;
 28>                                                                                                     
 29>                                                                                                     }
-1->Emitted(12, 9) Source(15, 9) + SourceIndex(0)
-2 >Emitted(12, 32) Source(15, 16) + SourceIndex(0)
-3 >Emitted(12, 35) Source(15, 9) + SourceIndex(0)
-4 >Emitted(12, 49) Source(15, 21) + SourceIndex(0)
-5 >Emitted(12, 55) Source(15, 27) + SourceIndex(0)
-6 >Emitted(12, 56) Source(15, 28) + SourceIndex(0)
-7 >Emitted(12, 60) Source(15, 32) + SourceIndex(0)
-8 >Emitted(12, 61) Source(15, 33) + SourceIndex(0)
-9 >Emitted(12, 65) Source(15, 37) + SourceIndex(0)
-10>Emitted(12, 66) Source(15, 38) + SourceIndex(0)
-11>Emitted(12, 70) Source(15, 42) + SourceIndex(0)
-12>Emitted(12, 71) Source(15, 43) + SourceIndex(0)
-13>Emitted(12, 72) Source(15, 44) + SourceIndex(0)
-14>Emitted(12, 75) Source(15, 47) + SourceIndex(0)
-15>Emitted(12, 79) Source(15, 51) + SourceIndex(0)
-16>Emitted(12, 80) Source(15, 52) + SourceIndex(0)
-17>Emitted(12, 81) Source(15, 53) + SourceIndex(0)
-18>Emitted(12, 84) Source(15, 56) + SourceIndex(0)
-19>Emitted(12, 88) Source(15, 60) + SourceIndex(0)
-20>Emitted(12, 89) Source(15, 61) + SourceIndex(0)
-21>Emitted(12, 90) Source(15, 62) + SourceIndex(0)
-22>Emitted(12, 93) Source(15, 65) + SourceIndex(0)
-23>Emitted(12, 97) Source(15, 69) + SourceIndex(0)
-24>Emitted(12, 98) Source(15, 70) + SourceIndex(0)
-25>Emitted(12, 99) Source(15, 71) + SourceIndex(0)
-26>Emitted(12, 100) Source(15, 72) + SourceIndex(0)
-27>Emitted(12, 101) Source(15, 73) + SourceIndex(0)
-28>Emitted(12, 102) Source(15, 74) + SourceIndex(0)
-29>Emitted(12, 103) Source(15, 75) + SourceIndex(0)
+1->Emitted(26, 9) Source(15, 9) + SourceIndex(0)
+2 >Emitted(26, 32) Source(15, 16) + SourceIndex(0)
+3 >Emitted(26, 35) Source(15, 9) + SourceIndex(0)
+4 >Emitted(26, 49) Source(15, 21) + SourceIndex(0)
+5 >Emitted(26, 55) Source(15, 27) + SourceIndex(0)
+6 >Emitted(26, 56) Source(15, 28) + SourceIndex(0)
+7 >Emitted(26, 60) Source(15, 32) + SourceIndex(0)
+8 >Emitted(26, 61) Source(15, 33) + SourceIndex(0)
+9 >Emitted(26, 65) Source(15, 37) + SourceIndex(0)
+10>Emitted(26, 66) Source(15, 38) + SourceIndex(0)
+11>Emitted(26, 70) Source(15, 42) + SourceIndex(0)
+12>Emitted(26, 71) Source(15, 43) + SourceIndex(0)
+13>Emitted(26, 72) Source(15, 44) + SourceIndex(0)
+14>Emitted(26, 75) Source(15, 47) + SourceIndex(0)
+15>Emitted(26, 79) Source(15, 51) + SourceIndex(0)
+16>Emitted(26, 80) Source(15, 52) + SourceIndex(0)
+17>Emitted(26, 81) Source(15, 53) + SourceIndex(0)
+18>Emitted(26, 84) Source(15, 56) + SourceIndex(0)
+19>Emitted(26, 88) Source(15, 60) + SourceIndex(0)
+20>Emitted(26, 89) Source(15, 61) + SourceIndex(0)
+21>Emitted(26, 90) Source(15, 62) + SourceIndex(0)
+22>Emitted(26, 93) Source(15, 65) + SourceIndex(0)
+23>Emitted(26, 97) Source(15, 69) + SourceIndex(0)
+24>Emitted(26, 98) Source(15, 70) + SourceIndex(0)
+25>Emitted(26, 99) Source(15, 71) + SourceIndex(0)
+26>Emitted(26, 100) Source(15, 72) + SourceIndex(0)
+27>Emitted(26, 101) Source(15, 73) + SourceIndex(0)
+28>Emitted(26, 102) Source(15, 74) + SourceIndex(0)
+29>Emitted(26, 103) Source(15, 75) + SourceIndex(0)
 ---
+>>>        __names(Point.prototype, ["getDist"]);
 >>>        // Static member
 1 >^^^^^^^^
 2 >        ^^^^^^^^^^^^^^^^
@@ -272,8 +287,8 @@ sourceFile:sourceMap-FileWithComments.ts
   >
   >        
 2 >        // Static member
-1 >Emitted(13, 9) Source(17, 9) + SourceIndex(0)
-2 >Emitted(13, 25) Source(17, 25) + SourceIndex(0)
+1 >Emitted(28, 9) Source(17, 9) + SourceIndex(0)
+2 >Emitted(28, 25) Source(17, 25) + SourceIndex(0)
 ---
 >>>        Point.origin = new Point(0, 0);
 1->^^^^^^^^
@@ -299,17 +314,17 @@ sourceFile:sourceMap-FileWithComments.ts
 9 >                                    0
 10>                                     )
 11>                                      ;
-1->Emitted(14, 9) Source(18, 16) + SourceIndex(0)
-2 >Emitted(14, 21) Source(18, 22) + SourceIndex(0)
-3 >Emitted(14, 24) Source(18, 25) + SourceIndex(0)
-4 >Emitted(14, 28) Source(18, 29) + SourceIndex(0)
-5 >Emitted(14, 33) Source(18, 34) + SourceIndex(0)
-6 >Emitted(14, 34) Source(18, 35) + SourceIndex(0)
-7 >Emitted(14, 35) Source(18, 36) + SourceIndex(0)
-8 >Emitted(14, 37) Source(18, 38) + SourceIndex(0)
-9 >Emitted(14, 38) Source(18, 39) + SourceIndex(0)
-10>Emitted(14, 39) Source(18, 40) + SourceIndex(0)
-11>Emitted(14, 40) Source(18, 41) + SourceIndex(0)
+1->Emitted(29, 9) Source(18, 16) + SourceIndex(0)
+2 >Emitted(29, 21) Source(18, 22) + SourceIndex(0)
+3 >Emitted(29, 24) Source(18, 25) + SourceIndex(0)
+4 >Emitted(29, 28) Source(18, 29) + SourceIndex(0)
+5 >Emitted(29, 33) Source(18, 34) + SourceIndex(0)
+6 >Emitted(29, 34) Source(18, 35) + SourceIndex(0)
+7 >Emitted(29, 35) Source(18, 36) + SourceIndex(0)
+8 >Emitted(29, 37) Source(18, 38) + SourceIndex(0)
+9 >Emitted(29, 38) Source(18, 39) + SourceIndex(0)
+10>Emitted(29, 39) Source(18, 40) + SourceIndex(0)
+11>Emitted(29, 40) Source(18, 41) + SourceIndex(0)
 ---
 >>>        return Point;
 1 >^^^^^^^^
@@ -317,8 +332,8 @@ sourceFile:sourceMap-FileWithComments.ts
 1 >
   >    
 2 >        }
-1 >Emitted(15, 9) Source(19, 5) + SourceIndex(0)
-2 >Emitted(15, 21) Source(19, 6) + SourceIndex(0)
+1 >Emitted(30, 9) Source(19, 5) + SourceIndex(0)
+2 >Emitted(30, 21) Source(19, 6) + SourceIndex(0)
 ---
 >>>    }());
 1 >^^^^^
@@ -337,9 +352,9 @@ sourceFile:sourceMap-FileWithComments.ts
   >             // Static member
   >             static origin = new Point(0, 0);
   >         }
-1 >Emitted(16, 6) Source(19, 6) + SourceIndex(0)
-2 >Emitted(16, 6) Source(10, 5) + SourceIndex(0)
-3 >Emitted(16, 10) Source(19, 6) + SourceIndex(0)
+1 >Emitted(31, 6) Source(19, 6) + SourceIndex(0)
+2 >Emitted(31, 6) Source(10, 5) + SourceIndex(0)
+3 >Emitted(31, 10) Source(19, 6) + SourceIndex(0)
 ---
 >>>    Shapes.Point = Point;
 1->^^^^
@@ -360,10 +375,10 @@ sourceFile:sourceMap-FileWithComments.ts
   >                        static origin = new Point(0, 0);
   >                    }
 4 >                        
-1->Emitted(17, 5) Source(10, 18) + SourceIndex(0)
-2 >Emitted(17, 17) Source(10, 23) + SourceIndex(0)
-3 >Emitted(17, 25) Source(19, 6) + SourceIndex(0)
-4 >Emitted(17, 26) Source(19, 6) + SourceIndex(0)
+1->Emitted(32, 5) Source(10, 18) + SourceIndex(0)
+2 >Emitted(32, 17) Source(10, 23) + SourceIndex(0)
+3 >Emitted(32, 25) Source(19, 6) + SourceIndex(0)
+4 >Emitted(32, 26) Source(19, 6) + SourceIndex(0)
 ---
 >>>    // Variable comment after class
 1->^^^^
@@ -372,8 +387,8 @@ sourceFile:sourceMap-FileWithComments.ts
   >
   >    
 2 >    // Variable comment after class
-1->Emitted(18, 5) Source(21, 5) + SourceIndex(0)
-2 >Emitted(18, 36) Source(21, 36) + SourceIndex(0)
+1->Emitted(33, 5) Source(21, 5) + SourceIndex(0)
+2 >Emitted(33, 36) Source(21, 36) + SourceIndex(0)
 ---
 >>>    var a = 10;
 1 >^^^^
@@ -390,12 +405,12 @@ sourceFile:sourceMap-FileWithComments.ts
 4 >          = 
 5 >            10
 6 >              ;
-1 >Emitted(19, 5) Source(22, 5) + SourceIndex(0)
-2 >Emitted(19, 9) Source(22, 9) + SourceIndex(0)
-3 >Emitted(19, 10) Source(22, 10) + SourceIndex(0)
-4 >Emitted(19, 13) Source(22, 13) + SourceIndex(0)
-5 >Emitted(19, 15) Source(22, 15) + SourceIndex(0)
-6 >Emitted(19, 16) Source(22, 16) + SourceIndex(0)
+1 >Emitted(34, 5) Source(22, 5) + SourceIndex(0)
+2 >Emitted(34, 9) Source(22, 9) + SourceIndex(0)
+3 >Emitted(34, 10) Source(22, 10) + SourceIndex(0)
+4 >Emitted(34, 13) Source(22, 13) + SourceIndex(0)
+5 >Emitted(34, 15) Source(22, 15) + SourceIndex(0)
+6 >Emitted(34, 16) Source(22, 16) + SourceIndex(0)
 ---
 >>>    function foo() {
 1->^^^^
@@ -403,7 +418,7 @@ sourceFile:sourceMap-FileWithComments.ts
 1->
   >
   >    
-1->Emitted(20, 5) Source(24, 5) + SourceIndex(0)
+1->Emitted(35, 5) Source(24, 5) + SourceIndex(0)
 ---
 >>>    }
 1->^^^^
@@ -412,8 +427,8 @@ sourceFile:sourceMap-FileWithComments.ts
 1->export function foo() {
   >    
 2 >    }
-1->Emitted(21, 5) Source(25, 5) + SourceIndex(0)
-2 >Emitted(21, 6) Source(25, 6) + SourceIndex(0)
+1->Emitted(36, 5) Source(25, 5) + SourceIndex(0)
+2 >Emitted(36, 6) Source(25, 6) + SourceIndex(0)
 ---
 >>>    Shapes.foo = foo;
 1->^^^^
@@ -426,10 +441,10 @@ sourceFile:sourceMap-FileWithComments.ts
 3 >              () {
   >                  }
 4 >                    
-1->Emitted(22, 5) Source(24, 21) + SourceIndex(0)
-2 >Emitted(22, 15) Source(24, 24) + SourceIndex(0)
-3 >Emitted(22, 21) Source(25, 6) + SourceIndex(0)
-4 >Emitted(22, 22) Source(25, 6) + SourceIndex(0)
+1->Emitted(37, 5) Source(24, 21) + SourceIndex(0)
+2 >Emitted(37, 15) Source(24, 24) + SourceIndex(0)
+3 >Emitted(37, 21) Source(25, 6) + SourceIndex(0)
+4 >Emitted(37, 22) Source(25, 6) + SourceIndex(0)
 ---
 >>>    /**  comment after function
 1->^^^^
@@ -437,7 +452,7 @@ sourceFile:sourceMap-FileWithComments.ts
 1->
   >
   >    
-1->Emitted(23, 5) Source(27, 5) + SourceIndex(0)
+1->Emitted(38, 5) Source(27, 5) + SourceIndex(0)
 ---
 >>>    * this is another comment
 >>>    */
@@ -446,7 +461,7 @@ sourceFile:sourceMap-FileWithComments.ts
 1->/**  comment after function
   >    * this is another comment 
   >    */
-1->Emitted(25, 7) Source(29, 7) + SourceIndex(0)
+1->Emitted(40, 7) Source(29, 7) + SourceIndex(0)
 ---
 >>>    var b = 10;
 1->^^^^
@@ -463,12 +478,12 @@ sourceFile:sourceMap-FileWithComments.ts
 4 >          = 
 5 >            10
 6 >              ;
-1->Emitted(26, 5) Source(30, 5) + SourceIndex(0)
-2 >Emitted(26, 9) Source(30, 9) + SourceIndex(0)
-3 >Emitted(26, 10) Source(30, 10) + SourceIndex(0)
-4 >Emitted(26, 13) Source(30, 13) + SourceIndex(0)
-5 >Emitted(26, 15) Source(30, 15) + SourceIndex(0)
-6 >Emitted(26, 16) Source(30, 16) + SourceIndex(0)
+1->Emitted(41, 5) Source(30, 5) + SourceIndex(0)
+2 >Emitted(41, 9) Source(30, 9) + SourceIndex(0)
+3 >Emitted(41, 10) Source(30, 10) + SourceIndex(0)
+4 >Emitted(41, 13) Source(30, 13) + SourceIndex(0)
+5 >Emitted(41, 15) Source(30, 15) + SourceIndex(0)
+6 >Emitted(41, 16) Source(30, 16) + SourceIndex(0)
 ---
 >>>})(Shapes || (Shapes = {}));
 1->
@@ -510,13 +525,13 @@ sourceFile:sourceMap-FileWithComments.ts
   >                        */
   >                        var b = 10;
   >                    }
-1->Emitted(27, 1) Source(31, 1) + SourceIndex(0)
-2 >Emitted(27, 2) Source(31, 2) + SourceIndex(0)
-3 >Emitted(27, 4) Source(7, 8) + SourceIndex(0)
-4 >Emitted(27, 10) Source(7, 14) + SourceIndex(0)
-5 >Emitted(27, 15) Source(7, 8) + SourceIndex(0)
-6 >Emitted(27, 21) Source(7, 14) + SourceIndex(0)
-7 >Emitted(27, 29) Source(31, 2) + SourceIndex(0)
+1->Emitted(42, 1) Source(31, 1) + SourceIndex(0)
+2 >Emitted(42, 2) Source(31, 2) + SourceIndex(0)
+3 >Emitted(42, 4) Source(7, 8) + SourceIndex(0)
+4 >Emitted(42, 10) Source(7, 14) + SourceIndex(0)
+5 >Emitted(42, 15) Source(7, 8) + SourceIndex(0)
+6 >Emitted(42, 21) Source(7, 14) + SourceIndex(0)
+7 >Emitted(42, 29) Source(31, 2) + SourceIndex(0)
 ---
 >>>/** Local Variable */
 1 >
@@ -526,8 +541,8 @@ sourceFile:sourceMap-FileWithComments.ts
   >
   >
 2 >/** Local Variable */
-1 >Emitted(28, 1) Source(33, 1) + SourceIndex(0)
-2 >Emitted(28, 22) Source(33, 22) + SourceIndex(0)
+1 >Emitted(43, 1) Source(33, 1) + SourceIndex(0)
+2 >Emitted(43, 22) Source(33, 22) + SourceIndex(0)
 ---
 >>>var p = new Shapes.Point(3, 4);
 1->
@@ -559,20 +574,20 @@ sourceFile:sourceMap-FileWithComments.ts
 12>                            4
 13>                             )
 14>                              ;
-1->Emitted(29, 1) Source(34, 1) + SourceIndex(0)
-2 >Emitted(29, 5) Source(34, 5) + SourceIndex(0)
-3 >Emitted(29, 6) Source(34, 6) + SourceIndex(0)
-4 >Emitted(29, 9) Source(34, 17) + SourceIndex(0)
-5 >Emitted(29, 13) Source(34, 21) + SourceIndex(0)
-6 >Emitted(29, 19) Source(34, 27) + SourceIndex(0)
-7 >Emitted(29, 20) Source(34, 28) + SourceIndex(0)
-8 >Emitted(29, 25) Source(34, 33) + SourceIndex(0)
-9 >Emitted(29, 26) Source(34, 34) + SourceIndex(0)
-10>Emitted(29, 27) Source(34, 35) + SourceIndex(0)
-11>Emitted(29, 29) Source(34, 37) + SourceIndex(0)
-12>Emitted(29, 30) Source(34, 38) + SourceIndex(0)
-13>Emitted(29, 31) Source(34, 39) + SourceIndex(0)
-14>Emitted(29, 32) Source(34, 40) + SourceIndex(0)
+1->Emitted(44, 1) Source(34, 1) + SourceIndex(0)
+2 >Emitted(44, 5) Source(34, 5) + SourceIndex(0)
+3 >Emitted(44, 6) Source(34, 6) + SourceIndex(0)
+4 >Emitted(44, 9) Source(34, 17) + SourceIndex(0)
+5 >Emitted(44, 13) Source(34, 21) + SourceIndex(0)
+6 >Emitted(44, 19) Source(34, 27) + SourceIndex(0)
+7 >Emitted(44, 20) Source(34, 28) + SourceIndex(0)
+8 >Emitted(44, 25) Source(34, 33) + SourceIndex(0)
+9 >Emitted(44, 26) Source(34, 34) + SourceIndex(0)
+10>Emitted(44, 27) Source(34, 35) + SourceIndex(0)
+11>Emitted(44, 29) Source(34, 37) + SourceIndex(0)
+12>Emitted(44, 30) Source(34, 38) + SourceIndex(0)
+13>Emitted(44, 31) Source(34, 39) + SourceIndex(0)
+14>Emitted(44, 32) Source(34, 40) + SourceIndex(0)
 ---
 >>>var dist = p.getDist();
 1 >
@@ -595,14 +610,14 @@ sourceFile:sourceMap-FileWithComments.ts
 7 >             getDist
 8 >                    ()
 9 >                      ;
-1 >Emitted(30, 1) Source(35, 1) + SourceIndex(0)
-2 >Emitted(30, 5) Source(35, 5) + SourceIndex(0)
-3 >Emitted(30, 9) Source(35, 9) + SourceIndex(0)
-4 >Emitted(30, 12) Source(35, 12) + SourceIndex(0)
-5 >Emitted(30, 13) Source(35, 13) + SourceIndex(0)
-6 >Emitted(30, 14) Source(35, 14) + SourceIndex(0)
-7 >Emitted(30, 21) Source(35, 21) + SourceIndex(0)
-8 >Emitted(30, 23) Source(35, 23) + SourceIndex(0)
-9 >Emitted(30, 24) Source(35, 24) + SourceIndex(0)
+1 >Emitted(45, 1) Source(35, 1) + SourceIndex(0)
+2 >Emitted(45, 5) Source(35, 5) + SourceIndex(0)
+3 >Emitted(45, 9) Source(35, 9) + SourceIndex(0)
+4 >Emitted(45, 12) Source(35, 12) + SourceIndex(0)
+5 >Emitted(45, 13) Source(35, 13) + SourceIndex(0)
+6 >Emitted(45, 14) Source(35, 14) + SourceIndex(0)
+7 >Emitted(45, 21) Source(35, 21) + SourceIndex(0)
+8 >Emitted(45, 23) Source(35, 23) + SourceIndex(0)
+9 >Emitted(45, 24) Source(35, 24) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=sourceMap-FileWithComments.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapSample.js b/tests/baselines/reference/sourceMapSample.js
index 4b710b89234cf..519f2137c1d38 100644
--- a/tests/baselines/reference/sourceMapSample.js
+++ b/tests/baselines/reference/sourceMapSample.js
@@ -36,6 +36,20 @@ module Foo.Bar {
 }
 
 //// [sourceMapSample.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo;
 (function (Foo) {
     var Bar;
@@ -48,6 +62,7 @@ var Foo;
             Greeter.prototype.greet = function () {
                 return "<h1>" + this.greeting + "</h1>";
             };
+            __names(Greeter.prototype, ["greet"]);
             return Greeter;
         }());
         function foo(greeting) {
diff --git a/tests/baselines/reference/sourceMapSample.js.map b/tests/baselines/reference/sourceMapSample.js.map
index 783ff610f6642..384d9345c346b 100644
--- a/tests/baselines/reference/sourceMapSample.js.map
+++ b/tests/baselines/reference/sourceMapSample.js.map
@@ -1,2 +1,2 @@
 //// [sourceMapSample.js.map]
-{"version":3,"file":"sourceMapSample.js","sourceRoot":"","sources":["sourceMapSample.ts"],"names":[],"mappings":"AAAA,IAAO,GAAG,CAkCT;AAlCD,WAAO,GAAG;IAAC,IAAA,GAAG,CAkCb;IAlCU,WAAA,GAAG;QACV,YAAY,CAAC;QAEb;YACI,iBAAmB,QAAgB;gBAAhB,aAAQ,GAAR,QAAQ,CAAQ;YACnC,CAAC;YAED,uBAAK,GAAL;gBACI,MAAM,CAAC,MAAM,GAAG,IAAI,CAAC,QAAQ,GAAG,OAAO,CAAC;YAC5C,CAAC;YACL,cAAC;QAAD,CAAC,AAPD,IAOC;QAGD,aAAa,QAAgB;YACzB,MAAM,CAAC,IAAI,OAAO,CAAC,QAAQ,CAAC,CAAC;QACjC,CAAC;QAED,IAAI,OAAO,GAAG,IAAI,OAAO,CAAC,eAAe,CAAC,CAAC;QAC3C,IAAI,GAAG,GAAG,OAAO,CAAC,KAAK,EAAE,CAAC;QAE1B,cAAc,QAAgB;YAAE,uBAA0B;iBAA1B,UAA0B,EAA1B,qBAA0B,EAA1B,IAA0B;gBAA1B,sCAA0B;;YACtD,IAAI,QAAQ,GAAc,EAAE,CAAC;YAC7B,QAAQ,CAAC,CAAC,CAAC,GAAG,IAAI,OAAO,CAAC,QAAQ,CAAC,CAAC;YACpC,GAAG,CAAC,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,aAAa,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE,CAAC;gBAC5C,QAAQ,CAAC,IAAI,CAAC,IAAI,OAAO,CAAC,aAAa,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;YACjD,CAAC;YAED,MAAM,CAAC,QAAQ,CAAC;QACpB,CAAC;QAED,IAAI,CAAC,GAAG,IAAI,CAAC,OAAO,EAAE,OAAO,EAAE,GAAG,CAAC,CAAC;QACpC,GAAG,CAAC,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE,CAAC;YAChC,CAAC,CAAC,CAAC,CAAC,CAAC,KAAK,EAAE,CAAC;QACjB,CAAC;IACL,CAAC,EAlCU,GAAG,GAAH,OAAG,KAAH,OAAG,QAkCb;AAAD,CAAC,EAlCM,GAAG,KAAH,GAAG,QAkCT"}
\ No newline at end of file
+{"version":3,"file":"sourceMapSample.js","sourceRoot":"","sources":["sourceMapSample.ts"],"names":[],"mappings":";;;;;;;;;;;;;;AAAA,IAAO,GAAG,CAkCT;AAlCD,WAAO,GAAG;IAAC,IAAA,GAAG,CAkCb;IAlCU,WAAA,GAAG;QACV,YAAY,CAAC;QAEb;YACI,iBAAmB,QAAgB;gBAAhB,aAAQ,GAAR,QAAQ,CAAQ;YACnC,CAAC;YAED,uBAAK,GAAL;gBACI,MAAM,CAAC,MAAM,GAAG,IAAI,CAAC,QAAQ,GAAG,OAAO,CAAC;YAC5C,CAAC;;YACL,cAAC;QAAD,CAAC,AAPD,IAOC;QAGD,aAAa,QAAgB;YACzB,MAAM,CAAC,IAAI,OAAO,CAAC,QAAQ,CAAC,CAAC;QACjC,CAAC;QAED,IAAI,OAAO,GAAG,IAAI,OAAO,CAAC,eAAe,CAAC,CAAC;QAC3C,IAAI,GAAG,GAAG,OAAO,CAAC,KAAK,EAAE,CAAC;QAE1B,cAAc,QAAgB;YAAE,uBAA0B;iBAA1B,UAA0B,EAA1B,qBAA0B,EAA1B,IAA0B;gBAA1B,sCAA0B;;YACtD,IAAI,QAAQ,GAAc,EAAE,CAAC;YAC7B,QAAQ,CAAC,CAAC,CAAC,GAAG,IAAI,OAAO,CAAC,QAAQ,CAAC,CAAC;YACpC,GAAG,CAAC,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,aAAa,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE,CAAC;gBAC5C,QAAQ,CAAC,IAAI,CAAC,IAAI,OAAO,CAAC,aAAa,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;YACjD,CAAC;YAED,MAAM,CAAC,QAAQ,CAAC;QACpB,CAAC;QAED,IAAI,CAAC,GAAG,IAAI,CAAC,OAAO,EAAE,OAAO,EAAE,GAAG,CAAC,CAAC;QACpC,GAAG,CAAC,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE,CAAC;YAChC,CAAC,CAAC,CAAC,CAAC,CAAC,KAAK,EAAE,CAAC;QACjB,CAAC;IACL,CAAC,EAlCU,GAAG,GAAH,OAAG,KAAH,OAAG,QAkCb;AAAD,CAAC,EAlCM,GAAG,KAAH,GAAG,QAkCT"}
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapSample.sourcemap.txt b/tests/baselines/reference/sourceMapSample.sourcemap.txt
index 03ded2b660978..2ffafa87c7b7b 100644
--- a/tests/baselines/reference/sourceMapSample.sourcemap.txt
+++ b/tests/baselines/reference/sourceMapSample.sourcemap.txt
@@ -8,6 +8,20 @@ sources: sourceMapSample.ts
 emittedFile:tests/cases/compiler/sourceMapSample.js
 sourceFile:sourceMapSample.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>var Foo;
 1 >
 2 >^^^^
@@ -52,10 +66,10 @@ sourceFile:sourceMapSample.ts
   >               b[j].greet();
   >           }
   >       }
-1 >Emitted(1, 1) Source(1, 1) + SourceIndex(0)
-2 >Emitted(1, 5) Source(1, 8) + SourceIndex(0)
-3 >Emitted(1, 8) Source(1, 11) + SourceIndex(0)
-4 >Emitted(1, 9) Source(35, 2) + SourceIndex(0)
+1 >Emitted(15, 1) Source(1, 1) + SourceIndex(0)
+2 >Emitted(15, 5) Source(1, 8) + SourceIndex(0)
+3 >Emitted(15, 8) Source(1, 11) + SourceIndex(0)
+4 >Emitted(15, 9) Source(35, 2) + SourceIndex(0)
 ---
 >>>(function (Foo) {
 1->
@@ -64,9 +78,9 @@ sourceFile:sourceMapSample.ts
 1->
 2 >module 
 3 >           Foo
-1->Emitted(2, 1) Source(1, 1) + SourceIndex(0)
-2 >Emitted(2, 12) Source(1, 8) + SourceIndex(0)
-3 >Emitted(2, 15) Source(1, 11) + SourceIndex(0)
+1->Emitted(16, 1) Source(1, 1) + SourceIndex(0)
+2 >Emitted(16, 12) Source(1, 8) + SourceIndex(0)
+3 >Emitted(16, 15) Source(1, 11) + SourceIndex(0)
 ---
 >>>    var Bar;
 1 >^^^^
@@ -112,10 +126,10 @@ sourceFile:sourceMapSample.ts
   >                   b[j].greet();
   >               }
   >           }
-1 >Emitted(3, 5) Source(1, 12) + SourceIndex(0)
-2 >Emitted(3, 9) Source(1, 12) + SourceIndex(0)
-3 >Emitted(3, 12) Source(1, 15) + SourceIndex(0)
-4 >Emitted(3, 13) Source(35, 2) + SourceIndex(0)
+1 >Emitted(17, 5) Source(1, 12) + SourceIndex(0)
+2 >Emitted(17, 9) Source(1, 12) + SourceIndex(0)
+3 >Emitted(17, 12) Source(1, 15) + SourceIndex(0)
+4 >Emitted(17, 13) Source(35, 2) + SourceIndex(0)
 ---
 >>>    (function (Bar) {
 1->^^^^
@@ -125,9 +139,9 @@ sourceFile:sourceMapSample.ts
 1->
 2 >    
 3 >               Bar
-1->Emitted(4, 5) Source(1, 12) + SourceIndex(0)
-2 >Emitted(4, 16) Source(1, 12) + SourceIndex(0)
-3 >Emitted(4, 19) Source(1, 15) + SourceIndex(0)
+1->Emitted(18, 5) Source(1, 12) + SourceIndex(0)
+2 >Emitted(18, 16) Source(1, 12) + SourceIndex(0)
+3 >Emitted(18, 19) Source(1, 15) + SourceIndex(0)
 ---
 >>>        "use strict";
 1->^^^^^^^^
@@ -138,9 +152,9 @@ sourceFile:sourceMapSample.ts
   >    
 2 >        "use strict"
 3 >                    ;
-1->Emitted(5, 9) Source(2, 5) + SourceIndex(0)
-2 >Emitted(5, 21) Source(2, 17) + SourceIndex(0)
-3 >Emitted(5, 22) Source(2, 18) + SourceIndex(0)
+1->Emitted(19, 9) Source(2, 5) + SourceIndex(0)
+2 >Emitted(19, 21) Source(2, 17) + SourceIndex(0)
+3 >Emitted(19, 22) Source(2, 18) + SourceIndex(0)
 ---
 >>>        var Greeter = (function () {
 1->^^^^^^^^
@@ -148,7 +162,7 @@ sourceFile:sourceMapSample.ts
 1->
   >
   >    
-1->Emitted(6, 9) Source(4, 5) + SourceIndex(0)
+1->Emitted(20, 9) Source(4, 5) + SourceIndex(0)
 ---
 >>>            function Greeter(greeting) {
 1->^^^^^^^^^^^^
@@ -159,9 +173,9 @@ sourceFile:sourceMapSample.ts
   >        
 2 >            constructor(public 
 3 >                             greeting: string
-1->Emitted(7, 13) Source(5, 9) + SourceIndex(0)
-2 >Emitted(7, 30) Source(5, 28) + SourceIndex(0)
-3 >Emitted(7, 38) Source(5, 44) + SourceIndex(0)
+1->Emitted(21, 13) Source(5, 9) + SourceIndex(0)
+2 >Emitted(21, 30) Source(5, 28) + SourceIndex(0)
+3 >Emitted(21, 38) Source(5, 44) + SourceIndex(0)
 ---
 >>>                this.greeting = greeting;
 1->^^^^^^^^^^^^^^^^
@@ -174,11 +188,11 @@ sourceFile:sourceMapSample.ts
 3 >                             
 4 >                                greeting
 5 >                                        : string
-1->Emitted(8, 17) Source(5, 28) + SourceIndex(0)
-2 >Emitted(8, 30) Source(5, 36) + SourceIndex(0)
-3 >Emitted(8, 33) Source(5, 28) + SourceIndex(0)
-4 >Emitted(8, 41) Source(5, 36) + SourceIndex(0)
-5 >Emitted(8, 42) Source(5, 44) + SourceIndex(0)
+1->Emitted(22, 17) Source(5, 28) + SourceIndex(0)
+2 >Emitted(22, 30) Source(5, 36) + SourceIndex(0)
+3 >Emitted(22, 33) Source(5, 28) + SourceIndex(0)
+4 >Emitted(22, 41) Source(5, 36) + SourceIndex(0)
+5 >Emitted(22, 42) Source(5, 44) + SourceIndex(0)
 ---
 >>>            }
 1 >^^^^^^^^^^^^
@@ -187,8 +201,8 @@ sourceFile:sourceMapSample.ts
 1 >) {
   >        
 2 >            }
-1 >Emitted(9, 13) Source(6, 9) + SourceIndex(0)
-2 >Emitted(9, 14) Source(6, 10) + SourceIndex(0)
+1 >Emitted(23, 13) Source(6, 9) + SourceIndex(0)
+2 >Emitted(23, 14) Source(6, 10) + SourceIndex(0)
 ---
 >>>            Greeter.prototype.greet = function () {
 1->^^^^^^^^^^^^
@@ -200,9 +214,9 @@ sourceFile:sourceMapSample.ts
   >        
 2 >            greet
 3 >                                   
-1->Emitted(10, 13) Source(8, 9) + SourceIndex(0)
-2 >Emitted(10, 36) Source(8, 14) + SourceIndex(0)
-3 >Emitted(10, 39) Source(8, 9) + SourceIndex(0)
+1->Emitted(24, 13) Source(8, 9) + SourceIndex(0)
+2 >Emitted(24, 36) Source(8, 14) + SourceIndex(0)
+3 >Emitted(24, 39) Source(8, 9) + SourceIndex(0)
 ---
 >>>                return "<h1>" + this.greeting + "</h1>";
 1->^^^^^^^^^^^^^^^^
@@ -228,36 +242,37 @@ sourceFile:sourceMapSample.ts
 9 >                                              + 
 10>                                                "</h1>"
 11>                                                       ;
-1->Emitted(11, 17) Source(9, 13) + SourceIndex(0)
-2 >Emitted(11, 23) Source(9, 19) + SourceIndex(0)
-3 >Emitted(11, 24) Source(9, 20) + SourceIndex(0)
-4 >Emitted(11, 30) Source(9, 26) + SourceIndex(0)
-5 >Emitted(11, 33) Source(9, 29) + SourceIndex(0)
-6 >Emitted(11, 37) Source(9, 33) + SourceIndex(0)
-7 >Emitted(11, 38) Source(9, 34) + SourceIndex(0)
-8 >Emitted(11, 46) Source(9, 42) + SourceIndex(0)
-9 >Emitted(11, 49) Source(9, 45) + SourceIndex(0)
-10>Emitted(11, 56) Source(9, 52) + SourceIndex(0)
-11>Emitted(11, 57) Source(9, 53) + SourceIndex(0)
+1->Emitted(25, 17) Source(9, 13) + SourceIndex(0)
+2 >Emitted(25, 23) Source(9, 19) + SourceIndex(0)
+3 >Emitted(25, 24) Source(9, 20) + SourceIndex(0)
+4 >Emitted(25, 30) Source(9, 26) + SourceIndex(0)
+5 >Emitted(25, 33) Source(9, 29) + SourceIndex(0)
+6 >Emitted(25, 37) Source(9, 33) + SourceIndex(0)
+7 >Emitted(25, 38) Source(9, 34) + SourceIndex(0)
+8 >Emitted(25, 46) Source(9, 42) + SourceIndex(0)
+9 >Emitted(25, 49) Source(9, 45) + SourceIndex(0)
+10>Emitted(25, 56) Source(9, 52) + SourceIndex(0)
+11>Emitted(25, 57) Source(9, 53) + SourceIndex(0)
 ---
 >>>            };
 1 >^^^^^^^^^^^^
 2 >            ^
-3 >             ^^^^^^^^^^^^^^^->
+3 >             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >        
 2 >            }
-1 >Emitted(12, 13) Source(10, 9) + SourceIndex(0)
-2 >Emitted(12, 14) Source(10, 10) + SourceIndex(0)
+1 >Emitted(26, 13) Source(10, 9) + SourceIndex(0)
+2 >Emitted(26, 14) Source(10, 10) + SourceIndex(0)
 ---
+>>>            __names(Greeter.prototype, ["greet"]);
 >>>            return Greeter;
 1->^^^^^^^^^^^^
 2 >            ^^^^^^^^^^^^^^
 1->
   >    
 2 >            }
-1->Emitted(13, 13) Source(11, 5) + SourceIndex(0)
-2 >Emitted(13, 27) Source(11, 6) + SourceIndex(0)
+1->Emitted(28, 13) Source(11, 5) + SourceIndex(0)
+2 >Emitted(28, 27) Source(11, 6) + SourceIndex(0)
 ---
 >>>        }());
 1 >^^^^^^^^
@@ -276,10 +291,10 @@ sourceFile:sourceMapSample.ts
   >                     return "<h1>" + this.greeting + "</h1>";
   >                 }
   >             }
-1 >Emitted(14, 9) Source(11, 5) + SourceIndex(0)
-2 >Emitted(14, 10) Source(11, 6) + SourceIndex(0)
-3 >Emitted(14, 10) Source(4, 5) + SourceIndex(0)
-4 >Emitted(14, 14) Source(11, 6) + SourceIndex(0)
+1 >Emitted(29, 9) Source(11, 5) + SourceIndex(0)
+2 >Emitted(29, 10) Source(11, 6) + SourceIndex(0)
+3 >Emitted(29, 10) Source(4, 5) + SourceIndex(0)
+4 >Emitted(29, 14) Source(11, 6) + SourceIndex(0)
 ---
 >>>        function foo(greeting) {
 1->^^^^^^^^
@@ -292,9 +307,9 @@ sourceFile:sourceMapSample.ts
   >    
 2 >        function foo(
 3 >                     greeting: string
-1->Emitted(15, 9) Source(14, 5) + SourceIndex(0)
-2 >Emitted(15, 22) Source(14, 18) + SourceIndex(0)
-3 >Emitted(15, 30) Source(14, 34) + SourceIndex(0)
+1->Emitted(30, 9) Source(14, 5) + SourceIndex(0)
+2 >Emitted(30, 22) Source(14, 18) + SourceIndex(0)
+3 >Emitted(30, 30) Source(14, 34) + SourceIndex(0)
 ---
 >>>            return new Greeter(greeting);
 1->^^^^^^^^^^^^
@@ -316,15 +331,15 @@ sourceFile:sourceMapSample.ts
 7 >                               greeting
 8 >                                       )
 9 >                                        ;
-1->Emitted(16, 13) Source(15, 9) + SourceIndex(0)
-2 >Emitted(16, 19) Source(15, 15) + SourceIndex(0)
-3 >Emitted(16, 20) Source(15, 16) + SourceIndex(0)
-4 >Emitted(16, 24) Source(15, 20) + SourceIndex(0)
-5 >Emitted(16, 31) Source(15, 27) + SourceIndex(0)
-6 >Emitted(16, 32) Source(15, 28) + SourceIndex(0)
-7 >Emitted(16, 40) Source(15, 36) + SourceIndex(0)
-8 >Emitted(16, 41) Source(15, 37) + SourceIndex(0)
-9 >Emitted(16, 42) Source(15, 38) + SourceIndex(0)
+1->Emitted(31, 13) Source(15, 9) + SourceIndex(0)
+2 >Emitted(31, 19) Source(15, 15) + SourceIndex(0)
+3 >Emitted(31, 20) Source(15, 16) + SourceIndex(0)
+4 >Emitted(31, 24) Source(15, 20) + SourceIndex(0)
+5 >Emitted(31, 31) Source(15, 27) + SourceIndex(0)
+6 >Emitted(31, 32) Source(15, 28) + SourceIndex(0)
+7 >Emitted(31, 40) Source(15, 36) + SourceIndex(0)
+8 >Emitted(31, 41) Source(15, 37) + SourceIndex(0)
+9 >Emitted(31, 42) Source(15, 38) + SourceIndex(0)
 ---
 >>>        }
 1 >^^^^^^^^
@@ -333,8 +348,8 @@ sourceFile:sourceMapSample.ts
 1 >
   >    
 2 >        }
-1 >Emitted(17, 9) Source(16, 5) + SourceIndex(0)
-2 >Emitted(17, 10) Source(16, 6) + SourceIndex(0)
+1 >Emitted(32, 9) Source(16, 5) + SourceIndex(0)
+2 >Emitted(32, 10) Source(16, 6) + SourceIndex(0)
 ---
 >>>        var greeter = new Greeter("Hello, world!");
 1->^^^^^^^^
@@ -359,16 +374,16 @@ sourceFile:sourceMapSample.ts
 8 >                                  "Hello, world!"
 9 >                                                 )
 10>                                                  ;
-1->Emitted(18, 9) Source(18, 5) + SourceIndex(0)
-2 >Emitted(18, 13) Source(18, 9) + SourceIndex(0)
-3 >Emitted(18, 20) Source(18, 16) + SourceIndex(0)
-4 >Emitted(18, 23) Source(18, 19) + SourceIndex(0)
-5 >Emitted(18, 27) Source(18, 23) + SourceIndex(0)
-6 >Emitted(18, 34) Source(18, 30) + SourceIndex(0)
-7 >Emitted(18, 35) Source(18, 31) + SourceIndex(0)
-8 >Emitted(18, 50) Source(18, 46) + SourceIndex(0)
-9 >Emitted(18, 51) Source(18, 47) + SourceIndex(0)
-10>Emitted(18, 52) Source(18, 48) + SourceIndex(0)
+1->Emitted(33, 9) Source(18, 5) + SourceIndex(0)
+2 >Emitted(33, 13) Source(18, 9) + SourceIndex(0)
+3 >Emitted(33, 20) Source(18, 16) + SourceIndex(0)
+4 >Emitted(33, 23) Source(18, 19) + SourceIndex(0)
+5 >Emitted(33, 27) Source(18, 23) + SourceIndex(0)
+6 >Emitted(33, 34) Source(18, 30) + SourceIndex(0)
+7 >Emitted(33, 35) Source(18, 31) + SourceIndex(0)
+8 >Emitted(33, 50) Source(18, 46) + SourceIndex(0)
+9 >Emitted(33, 51) Source(18, 47) + SourceIndex(0)
+10>Emitted(33, 52) Source(18, 48) + SourceIndex(0)
 ---
 >>>        var str = greeter.greet();
 1 >^^^^^^^^
@@ -390,15 +405,15 @@ sourceFile:sourceMapSample.ts
 7 >                          greet
 8 >                               ()
 9 >                                 ;
-1 >Emitted(19, 9) Source(19, 5) + SourceIndex(0)
-2 >Emitted(19, 13) Source(19, 9) + SourceIndex(0)
-3 >Emitted(19, 16) Source(19, 12) + SourceIndex(0)
-4 >Emitted(19, 19) Source(19, 15) + SourceIndex(0)
-5 >Emitted(19, 26) Source(19, 22) + SourceIndex(0)
-6 >Emitted(19, 27) Source(19, 23) + SourceIndex(0)
-7 >Emitted(19, 32) Source(19, 28) + SourceIndex(0)
-8 >Emitted(19, 34) Source(19, 30) + SourceIndex(0)
-9 >Emitted(19, 35) Source(19, 31) + SourceIndex(0)
+1 >Emitted(34, 9) Source(19, 5) + SourceIndex(0)
+2 >Emitted(34, 13) Source(19, 9) + SourceIndex(0)
+3 >Emitted(34, 16) Source(19, 12) + SourceIndex(0)
+4 >Emitted(34, 19) Source(19, 15) + SourceIndex(0)
+5 >Emitted(34, 26) Source(19, 22) + SourceIndex(0)
+6 >Emitted(34, 27) Source(19, 23) + SourceIndex(0)
+7 >Emitted(34, 32) Source(19, 28) + SourceIndex(0)
+8 >Emitted(34, 34) Source(19, 30) + SourceIndex(0)
+9 >Emitted(34, 35) Source(19, 31) + SourceIndex(0)
 ---
 >>>        function foo2(greeting) {
 1 >^^^^^^^^
@@ -410,9 +425,9 @@ sourceFile:sourceMapSample.ts
   >    
 2 >        function foo2(
 3 >                      greeting: string
-1 >Emitted(20, 9) Source(21, 5) + SourceIndex(0)
-2 >Emitted(20, 23) Source(21, 19) + SourceIndex(0)
-3 >Emitted(20, 31) Source(21, 35) + SourceIndex(0)
+1 >Emitted(35, 9) Source(21, 5) + SourceIndex(0)
+2 >Emitted(35, 23) Source(21, 19) + SourceIndex(0)
+3 >Emitted(35, 31) Source(21, 35) + SourceIndex(0)
 ---
 >>>            var restGreetings = [];
 1->^^^^^^^^^^^^
@@ -420,8 +435,8 @@ sourceFile:sourceMapSample.ts
 3 >                                   ^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->, 
 2 >            ...restGreetings: string[]
-1->Emitted(21, 13) Source(21, 37) + SourceIndex(0)
-2 >Emitted(21, 36) Source(21, 63) + SourceIndex(0)
+1->Emitted(36, 13) Source(21, 37) + SourceIndex(0)
+2 >Emitted(36, 36) Source(21, 63) + SourceIndex(0)
 ---
 >>>            for (var _i = 1; _i < arguments.length; _i++) {
 1->^^^^^^^^^^^^^^^^^
@@ -436,20 +451,20 @@ sourceFile:sourceMapSample.ts
 4 >                             ...restGreetings: string[]
 5 >                                                  
 6 >                                                    ...restGreetings: string[]
-1->Emitted(22, 18) Source(21, 37) + SourceIndex(0)
-2 >Emitted(22, 28) Source(21, 63) + SourceIndex(0)
-3 >Emitted(22, 30) Source(21, 37) + SourceIndex(0)
-4 >Emitted(22, 51) Source(21, 63) + SourceIndex(0)
-5 >Emitted(22, 53) Source(21, 37) + SourceIndex(0)
-6 >Emitted(22, 57) Source(21, 63) + SourceIndex(0)
+1->Emitted(37, 18) Source(21, 37) + SourceIndex(0)
+2 >Emitted(37, 28) Source(21, 63) + SourceIndex(0)
+3 >Emitted(37, 30) Source(21, 37) + SourceIndex(0)
+4 >Emitted(37, 51) Source(21, 63) + SourceIndex(0)
+5 >Emitted(37, 53) Source(21, 37) + SourceIndex(0)
+6 >Emitted(37, 57) Source(21, 63) + SourceIndex(0)
 ---
 >>>                restGreetings[_i - 1] = arguments[_i];
 1 >^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 1 >
 2 >                ...restGreetings: string[]
-1 >Emitted(23, 17) Source(21, 37) + SourceIndex(0)
-2 >Emitted(23, 55) Source(21, 63) + SourceIndex(0)
+1 >Emitted(38, 17) Source(21, 37) + SourceIndex(0)
+2 >Emitted(38, 55) Source(21, 63) + SourceIndex(0)
 ---
 >>>            }
 >>>            var greeters = [];
@@ -467,12 +482,12 @@ sourceFile:sourceMapSample.ts
 4 >                        : Greeter[] = 
 5 >                           []
 6 >                             ;
-1 >Emitted(25, 13) Source(22, 9) + SourceIndex(0)
-2 >Emitted(25, 17) Source(22, 13) + SourceIndex(0)
-3 >Emitted(25, 25) Source(22, 21) + SourceIndex(0)
-4 >Emitted(25, 28) Source(22, 35) + SourceIndex(0)
-5 >Emitted(25, 30) Source(22, 37) + SourceIndex(0)
-6 >Emitted(25, 31) Source(22, 38) + SourceIndex(0)
+1 >Emitted(40, 13) Source(22, 9) + SourceIndex(0)
+2 >Emitted(40, 17) Source(22, 13) + SourceIndex(0)
+3 >Emitted(40, 25) Source(22, 21) + SourceIndex(0)
+4 >Emitted(40, 28) Source(22, 35) + SourceIndex(0)
+5 >Emitted(40, 30) Source(22, 37) + SourceIndex(0)
+6 >Emitted(40, 31) Source(22, 38) + SourceIndex(0)
 ---
 >>>            greeters[0] = new Greeter(greeting);
 1->^^^^^^^^^^^^
@@ -501,18 +516,18 @@ sourceFile:sourceMapSample.ts
 10>                                      greeting
 11>                                              )
 12>                                               ;
-1->Emitted(26, 13) Source(23, 9) + SourceIndex(0)
-2 >Emitted(26, 21) Source(23, 17) + SourceIndex(0)
-3 >Emitted(26, 22) Source(23, 18) + SourceIndex(0)
-4 >Emitted(26, 23) Source(23, 19) + SourceIndex(0)
-5 >Emitted(26, 24) Source(23, 20) + SourceIndex(0)
-6 >Emitted(26, 27) Source(23, 23) + SourceIndex(0)
-7 >Emitted(26, 31) Source(23, 27) + SourceIndex(0)
-8 >Emitted(26, 38) Source(23, 34) + SourceIndex(0)
-9 >Emitted(26, 39) Source(23, 35) + SourceIndex(0)
-10>Emitted(26, 47) Source(23, 43) + SourceIndex(0)
-11>Emitted(26, 48) Source(23, 44) + SourceIndex(0)
-12>Emitted(26, 49) Source(23, 45) + SourceIndex(0)
+1->Emitted(41, 13) Source(23, 9) + SourceIndex(0)
+2 >Emitted(41, 21) Source(23, 17) + SourceIndex(0)
+3 >Emitted(41, 22) Source(23, 18) + SourceIndex(0)
+4 >Emitted(41, 23) Source(23, 19) + SourceIndex(0)
+5 >Emitted(41, 24) Source(23, 20) + SourceIndex(0)
+6 >Emitted(41, 27) Source(23, 23) + SourceIndex(0)
+7 >Emitted(41, 31) Source(23, 27) + SourceIndex(0)
+8 >Emitted(41, 38) Source(23, 34) + SourceIndex(0)
+9 >Emitted(41, 39) Source(23, 35) + SourceIndex(0)
+10>Emitted(41, 47) Source(23, 43) + SourceIndex(0)
+11>Emitted(41, 48) Source(23, 44) + SourceIndex(0)
+12>Emitted(41, 49) Source(23, 45) + SourceIndex(0)
 ---
 >>>            for (var i = 0; i < restGreetings.length; i++) {
 1->^^^^^^^^^^^^
@@ -555,25 +570,25 @@ sourceFile:sourceMapSample.ts
 17>                                                       ++
 18>                                                         ) 
 19>                                                           {
-1->Emitted(27, 13) Source(24, 9) + SourceIndex(0)
-2 >Emitted(27, 16) Source(24, 12) + SourceIndex(0)
-3 >Emitted(27, 17) Source(24, 13) + SourceIndex(0)
-4 >Emitted(27, 18) Source(24, 14) + SourceIndex(0)
-5 >Emitted(27, 22) Source(24, 18) + SourceIndex(0)
-6 >Emitted(27, 23) Source(24, 19) + SourceIndex(0)
-7 >Emitted(27, 26) Source(24, 22) + SourceIndex(0)
-8 >Emitted(27, 27) Source(24, 23) + SourceIndex(0)
-9 >Emitted(27, 29) Source(24, 25) + SourceIndex(0)
-10>Emitted(27, 30) Source(24, 26) + SourceIndex(0)
-11>Emitted(27, 33) Source(24, 29) + SourceIndex(0)
-12>Emitted(27, 46) Source(24, 42) + SourceIndex(0)
-13>Emitted(27, 47) Source(24, 43) + SourceIndex(0)
-14>Emitted(27, 53) Source(24, 49) + SourceIndex(0)
-15>Emitted(27, 55) Source(24, 51) + SourceIndex(0)
-16>Emitted(27, 56) Source(24, 52) + SourceIndex(0)
-17>Emitted(27, 58) Source(24, 54) + SourceIndex(0)
-18>Emitted(27, 60) Source(24, 56) + SourceIndex(0)
-19>Emitted(27, 61) Source(24, 57) + SourceIndex(0)
+1->Emitted(42, 13) Source(24, 9) + SourceIndex(0)
+2 >Emitted(42, 16) Source(24, 12) + SourceIndex(0)
+3 >Emitted(42, 17) Source(24, 13) + SourceIndex(0)
+4 >Emitted(42, 18) Source(24, 14) + SourceIndex(0)
+5 >Emitted(42, 22) Source(24, 18) + SourceIndex(0)
+6 >Emitted(42, 23) Source(24, 19) + SourceIndex(0)
+7 >Emitted(42, 26) Source(24, 22) + SourceIndex(0)
+8 >Emitted(42, 27) Source(24, 23) + SourceIndex(0)
+9 >Emitted(42, 29) Source(24, 25) + SourceIndex(0)
+10>Emitted(42, 30) Source(24, 26) + SourceIndex(0)
+11>Emitted(42, 33) Source(24, 29) + SourceIndex(0)
+12>Emitted(42, 46) Source(24, 42) + SourceIndex(0)
+13>Emitted(42, 47) Source(24, 43) + SourceIndex(0)
+14>Emitted(42, 53) Source(24, 49) + SourceIndex(0)
+15>Emitted(42, 55) Source(24, 51) + SourceIndex(0)
+16>Emitted(42, 56) Source(24, 52) + SourceIndex(0)
+17>Emitted(42, 58) Source(24, 54) + SourceIndex(0)
+18>Emitted(42, 60) Source(24, 56) + SourceIndex(0)
+19>Emitted(42, 61) Source(24, 57) + SourceIndex(0)
 ---
 >>>                greeters.push(new Greeter(restGreetings[i]));
 1->^^^^^^^^^^^^^^^^
@@ -607,21 +622,21 @@ sourceFile:sourceMapSample.ts
 13>                                                          )
 14>                                                           )
 15>                                                            ;
-1->Emitted(28, 17) Source(25, 13) + SourceIndex(0)
-2 >Emitted(28, 25) Source(25, 21) + SourceIndex(0)
-3 >Emitted(28, 26) Source(25, 22) + SourceIndex(0)
-4 >Emitted(28, 30) Source(25, 26) + SourceIndex(0)
-5 >Emitted(28, 31) Source(25, 27) + SourceIndex(0)
-6 >Emitted(28, 35) Source(25, 31) + SourceIndex(0)
-7 >Emitted(28, 42) Source(25, 38) + SourceIndex(0)
-8 >Emitted(28, 43) Source(25, 39) + SourceIndex(0)
-9 >Emitted(28, 56) Source(25, 52) + SourceIndex(0)
-10>Emitted(28, 57) Source(25, 53) + SourceIndex(0)
-11>Emitted(28, 58) Source(25, 54) + SourceIndex(0)
-12>Emitted(28, 59) Source(25, 55) + SourceIndex(0)
-13>Emitted(28, 60) Source(25, 56) + SourceIndex(0)
-14>Emitted(28, 61) Source(25, 57) + SourceIndex(0)
-15>Emitted(28, 62) Source(25, 58) + SourceIndex(0)
+1->Emitted(43, 17) Source(25, 13) + SourceIndex(0)
+2 >Emitted(43, 25) Source(25, 21) + SourceIndex(0)
+3 >Emitted(43, 26) Source(25, 22) + SourceIndex(0)
+4 >Emitted(43, 30) Source(25, 26) + SourceIndex(0)
+5 >Emitted(43, 31) Source(25, 27) + SourceIndex(0)
+6 >Emitted(43, 35) Source(25, 31) + SourceIndex(0)
+7 >Emitted(43, 42) Source(25, 38) + SourceIndex(0)
+8 >Emitted(43, 43) Source(25, 39) + SourceIndex(0)
+9 >Emitted(43, 56) Source(25, 52) + SourceIndex(0)
+10>Emitted(43, 57) Source(25, 53) + SourceIndex(0)
+11>Emitted(43, 58) Source(25, 54) + SourceIndex(0)
+12>Emitted(43, 59) Source(25, 55) + SourceIndex(0)
+13>Emitted(43, 60) Source(25, 56) + SourceIndex(0)
+14>Emitted(43, 61) Source(25, 57) + SourceIndex(0)
+15>Emitted(43, 62) Source(25, 58) + SourceIndex(0)
 ---
 >>>            }
 1 >^^^^^^^^^^^^
@@ -630,8 +645,8 @@ sourceFile:sourceMapSample.ts
 1 >
   >        
 2 >            }
-1 >Emitted(29, 13) Source(26, 9) + SourceIndex(0)
-2 >Emitted(29, 14) Source(26, 10) + SourceIndex(0)
+1 >Emitted(44, 13) Source(26, 9) + SourceIndex(0)
+2 >Emitted(44, 14) Source(26, 10) + SourceIndex(0)
 ---
 >>>            return greeters;
 1->^^^^^^^^^^^^
@@ -646,11 +661,11 @@ sourceFile:sourceMapSample.ts
 3 >                   
 4 >                   greeters
 5 >                           ;
-1->Emitted(30, 13) Source(28, 9) + SourceIndex(0)
-2 >Emitted(30, 19) Source(28, 15) + SourceIndex(0)
-3 >Emitted(30, 20) Source(28, 16) + SourceIndex(0)
-4 >Emitted(30, 28) Source(28, 24) + SourceIndex(0)
-5 >Emitted(30, 29) Source(28, 25) + SourceIndex(0)
+1->Emitted(45, 13) Source(28, 9) + SourceIndex(0)
+2 >Emitted(45, 19) Source(28, 15) + SourceIndex(0)
+3 >Emitted(45, 20) Source(28, 16) + SourceIndex(0)
+4 >Emitted(45, 28) Source(28, 24) + SourceIndex(0)
+5 >Emitted(45, 29) Source(28, 25) + SourceIndex(0)
 ---
 >>>        }
 1 >^^^^^^^^
@@ -659,8 +674,8 @@ sourceFile:sourceMapSample.ts
 1 >
   >    
 2 >        }
-1 >Emitted(31, 9) Source(29, 5) + SourceIndex(0)
-2 >Emitted(31, 10) Source(29, 6) + SourceIndex(0)
+1 >Emitted(46, 9) Source(29, 5) + SourceIndex(0)
+2 >Emitted(46, 10) Source(29, 6) + SourceIndex(0)
 ---
 >>>        var b = foo2("Hello", "World", "!");
 1->^^^^^^^^
@@ -692,19 +707,19 @@ sourceFile:sourceMapSample.ts
 11>                                       "!"
 12>                                          )
 13>                                           ;
-1->Emitted(32, 9) Source(31, 5) + SourceIndex(0)
-2 >Emitted(32, 13) Source(31, 9) + SourceIndex(0)
-3 >Emitted(32, 14) Source(31, 10) + SourceIndex(0)
-4 >Emitted(32, 17) Source(31, 13) + SourceIndex(0)
-5 >Emitted(32, 21) Source(31, 17) + SourceIndex(0)
-6 >Emitted(32, 22) Source(31, 18) + SourceIndex(0)
-7 >Emitted(32, 29) Source(31, 25) + SourceIndex(0)
-8 >Emitted(32, 31) Source(31, 27) + SourceIndex(0)
-9 >Emitted(32, 38) Source(31, 34) + SourceIndex(0)
-10>Emitted(32, 40) Source(31, 36) + SourceIndex(0)
-11>Emitted(32, 43) Source(31, 39) + SourceIndex(0)
-12>Emitted(32, 44) Source(31, 40) + SourceIndex(0)
-13>Emitted(32, 45) Source(31, 41) + SourceIndex(0)
+1->Emitted(47, 9) Source(31, 5) + SourceIndex(0)
+2 >Emitted(47, 13) Source(31, 9) + SourceIndex(0)
+3 >Emitted(47, 14) Source(31, 10) + SourceIndex(0)
+4 >Emitted(47, 17) Source(31, 13) + SourceIndex(0)
+5 >Emitted(47, 21) Source(31, 17) + SourceIndex(0)
+6 >Emitted(47, 22) Source(31, 18) + SourceIndex(0)
+7 >Emitted(47, 29) Source(31, 25) + SourceIndex(0)
+8 >Emitted(47, 31) Source(31, 27) + SourceIndex(0)
+9 >Emitted(47, 38) Source(31, 34) + SourceIndex(0)
+10>Emitted(47, 40) Source(31, 36) + SourceIndex(0)
+11>Emitted(47, 43) Source(31, 39) + SourceIndex(0)
+12>Emitted(47, 44) Source(31, 40) + SourceIndex(0)
+13>Emitted(47, 45) Source(31, 41) + SourceIndex(0)
 ---
 >>>        for (var j = 0; j < b.length; j++) {
 1->^^^^^^^^
@@ -746,25 +761,25 @@ sourceFile:sourceMapSample.ts
 17>                                       ++
 18>                                         ) 
 19>                                           {
-1->Emitted(33, 9) Source(32, 5) + SourceIndex(0)
-2 >Emitted(33, 12) Source(32, 8) + SourceIndex(0)
-3 >Emitted(33, 13) Source(32, 9) + SourceIndex(0)
-4 >Emitted(33, 14) Source(32, 10) + SourceIndex(0)
-5 >Emitted(33, 18) Source(32, 14) + SourceIndex(0)
-6 >Emitted(33, 19) Source(32, 15) + SourceIndex(0)
-7 >Emitted(33, 22) Source(32, 18) + SourceIndex(0)
-8 >Emitted(33, 23) Source(32, 19) + SourceIndex(0)
-9 >Emitted(33, 25) Source(32, 21) + SourceIndex(0)
-10>Emitted(33, 26) Source(32, 22) + SourceIndex(0)
-11>Emitted(33, 29) Source(32, 25) + SourceIndex(0)
-12>Emitted(33, 30) Source(32, 26) + SourceIndex(0)
-13>Emitted(33, 31) Source(32, 27) + SourceIndex(0)
-14>Emitted(33, 37) Source(32, 33) + SourceIndex(0)
-15>Emitted(33, 39) Source(32, 35) + SourceIndex(0)
-16>Emitted(33, 40) Source(32, 36) + SourceIndex(0)
-17>Emitted(33, 42) Source(32, 38) + SourceIndex(0)
-18>Emitted(33, 44) Source(32, 40) + SourceIndex(0)
-19>Emitted(33, 45) Source(32, 41) + SourceIndex(0)
+1->Emitted(48, 9) Source(32, 5) + SourceIndex(0)
+2 >Emitted(48, 12) Source(32, 8) + SourceIndex(0)
+3 >Emitted(48, 13) Source(32, 9) + SourceIndex(0)
+4 >Emitted(48, 14) Source(32, 10) + SourceIndex(0)
+5 >Emitted(48, 18) Source(32, 14) + SourceIndex(0)
+6 >Emitted(48, 19) Source(32, 15) + SourceIndex(0)
+7 >Emitted(48, 22) Source(32, 18) + SourceIndex(0)
+8 >Emitted(48, 23) Source(32, 19) + SourceIndex(0)
+9 >Emitted(48, 25) Source(32, 21) + SourceIndex(0)
+10>Emitted(48, 26) Source(32, 22) + SourceIndex(0)
+11>Emitted(48, 29) Source(32, 25) + SourceIndex(0)
+12>Emitted(48, 30) Source(32, 26) + SourceIndex(0)
+13>Emitted(48, 31) Source(32, 27) + SourceIndex(0)
+14>Emitted(48, 37) Source(32, 33) + SourceIndex(0)
+15>Emitted(48, 39) Source(32, 35) + SourceIndex(0)
+16>Emitted(48, 40) Source(32, 36) + SourceIndex(0)
+17>Emitted(48, 42) Source(32, 38) + SourceIndex(0)
+18>Emitted(48, 44) Source(32, 40) + SourceIndex(0)
+19>Emitted(48, 45) Source(32, 41) + SourceIndex(0)
 ---
 >>>            b[j].greet();
 1 >^^^^^^^^^^^^
@@ -786,15 +801,15 @@ sourceFile:sourceMapSample.ts
 7 >                 greet
 8 >                      ()
 9 >                        ;
-1 >Emitted(34, 13) Source(33, 9) + SourceIndex(0)
-2 >Emitted(34, 14) Source(33, 10) + SourceIndex(0)
-3 >Emitted(34, 15) Source(33, 11) + SourceIndex(0)
-4 >Emitted(34, 16) Source(33, 12) + SourceIndex(0)
-5 >Emitted(34, 17) Source(33, 13) + SourceIndex(0)
-6 >Emitted(34, 18) Source(33, 14) + SourceIndex(0)
-7 >Emitted(34, 23) Source(33, 19) + SourceIndex(0)
-8 >Emitted(34, 25) Source(33, 21) + SourceIndex(0)
-9 >Emitted(34, 26) Source(33, 22) + SourceIndex(0)
+1 >Emitted(49, 13) Source(33, 9) + SourceIndex(0)
+2 >Emitted(49, 14) Source(33, 10) + SourceIndex(0)
+3 >Emitted(49, 15) Source(33, 11) + SourceIndex(0)
+4 >Emitted(49, 16) Source(33, 12) + SourceIndex(0)
+5 >Emitted(49, 17) Source(33, 13) + SourceIndex(0)
+6 >Emitted(49, 18) Source(33, 14) + SourceIndex(0)
+7 >Emitted(49, 23) Source(33, 19) + SourceIndex(0)
+8 >Emitted(49, 25) Source(33, 21) + SourceIndex(0)
+9 >Emitted(49, 26) Source(33, 22) + SourceIndex(0)
 ---
 >>>        }
 1 >^^^^^^^^
@@ -803,8 +818,8 @@ sourceFile:sourceMapSample.ts
 1 >
   >    
 2 >        }
-1 >Emitted(35, 9) Source(34, 5) + SourceIndex(0)
-2 >Emitted(35, 10) Source(34, 6) + SourceIndex(0)
+1 >Emitted(50, 9) Source(34, 5) + SourceIndex(0)
+2 >Emitted(50, 10) Source(34, 6) + SourceIndex(0)
 ---
 >>>    })(Bar = Foo.Bar || (Foo.Bar = {}));
 1->^^^^
@@ -860,15 +875,15 @@ sourceFile:sourceMapSample.ts
   >                                        b[j].greet();
   >                                    }
   >                                }
-1->Emitted(36, 5) Source(35, 1) + SourceIndex(0)
-2 >Emitted(36, 6) Source(35, 2) + SourceIndex(0)
-3 >Emitted(36, 8) Source(1, 12) + SourceIndex(0)
-4 >Emitted(36, 11) Source(1, 15) + SourceIndex(0)
-5 >Emitted(36, 14) Source(1, 12) + SourceIndex(0)
-6 >Emitted(36, 21) Source(1, 15) + SourceIndex(0)
-7 >Emitted(36, 26) Source(1, 12) + SourceIndex(0)
-8 >Emitted(36, 33) Source(1, 15) + SourceIndex(0)
-9 >Emitted(36, 41) Source(35, 2) + SourceIndex(0)
+1->Emitted(51, 5) Source(35, 1) + SourceIndex(0)
+2 >Emitted(51, 6) Source(35, 2) + SourceIndex(0)
+3 >Emitted(51, 8) Source(1, 12) + SourceIndex(0)
+4 >Emitted(51, 11) Source(1, 15) + SourceIndex(0)
+5 >Emitted(51, 14) Source(1, 12) + SourceIndex(0)
+6 >Emitted(51, 21) Source(1, 15) + SourceIndex(0)
+7 >Emitted(51, 26) Source(1, 12) + SourceIndex(0)
+8 >Emitted(51, 33) Source(1, 15) + SourceIndex(0)
+9 >Emitted(51, 41) Source(35, 2) + SourceIndex(0)
 ---
 >>>})(Foo || (Foo = {}));
 1 >
@@ -920,12 +935,12 @@ sourceFile:sourceMapSample.ts
   >                      b[j].greet();
   >                  }
   >              }
-1 >Emitted(37, 1) Source(35, 1) + SourceIndex(0)
-2 >Emitted(37, 2) Source(35, 2) + SourceIndex(0)
-3 >Emitted(37, 4) Source(1, 8) + SourceIndex(0)
-4 >Emitted(37, 7) Source(1, 11) + SourceIndex(0)
-5 >Emitted(37, 12) Source(1, 8) + SourceIndex(0)
-6 >Emitted(37, 15) Source(1, 11) + SourceIndex(0)
-7 >Emitted(37, 23) Source(35, 2) + SourceIndex(0)
+1 >Emitted(52, 1) Source(35, 1) + SourceIndex(0)
+2 >Emitted(52, 2) Source(35, 2) + SourceIndex(0)
+3 >Emitted(52, 4) Source(1, 8) + SourceIndex(0)
+4 >Emitted(52, 7) Source(1, 11) + SourceIndex(0)
+5 >Emitted(52, 12) Source(1, 8) + SourceIndex(0)
+6 >Emitted(52, 15) Source(1, 11) + SourceIndex(0)
+7 >Emitted(52, 23) Source(35, 2) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=sourceMapSample.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapValidationClass.js b/tests/baselines/reference/sourceMapValidationClass.js
index f0ddca123f9b6..f8a6b43eb7e27 100644
--- a/tests/baselines/reference/sourceMapValidationClass.js
+++ b/tests/baselines/reference/sourceMapValidationClass.js
@@ -19,6 +19,20 @@ class Greeter {
 }
 
 //// [sourceMapValidationClass.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Greeter = (function () {
     function Greeter(greeting) {
         var b = [];
@@ -44,6 +58,7 @@ var Greeter = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Greeter.prototype, ["greet", "fn"]);
     return Greeter;
 }());
 //# sourceMappingURL=sourceMapValidationClass.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapValidationClass.js.map b/tests/baselines/reference/sourceMapValidationClass.js.map
index 8baf4772a27f5..6a46e7bb8287c 100644
--- a/tests/baselines/reference/sourceMapValidationClass.js.map
+++ b/tests/baselines/reference/sourceMapValidationClass.js.map
@@ -1,2 +1,2 @@
 //// [sourceMapValidationClass.js.map]
-{"version":3,"file":"sourceMapValidationClass.js","sourceRoot":"","sources":["sourceMapValidationClass.ts"],"names":[],"mappings":"AAAA;IACI,iBAAmB,QAAgB;QAAE,WAAc;aAAd,UAAc,EAAd,qBAAc,EAAd,IAAc;YAAd,0BAAc;;QAAhC,aAAQ,GAAR,QAAQ,CAAQ;QAM3B,OAAE,GAAW,EAAE,CAAC;IALxB,CAAC;IACD,uBAAK,GAAL;QACI,MAAM,CAAC,MAAM,GAAG,IAAI,CAAC,QAAQ,GAAG,OAAO,CAAC;IAC5C,CAAC;IAGO,oBAAE,GAAV;QACI,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC;IACzB,CAAC;IACD,sBAAI,8BAAS;aAAb;YACI,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC;QACzB,CAAC;aACD,UAAc,SAAiB;YAC3B,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;QAC9B,CAAC;;;OAHA;IAIL,cAAC;AAAD,CAAC,AAjBD,IAiBC"}
\ No newline at end of file
+{"version":3,"file":"sourceMapValidationClass.js","sourceRoot":"","sources":["sourceMapValidationClass.ts"],"names":[],"mappings":";;;;;;;;;;;;;;AAAA;IACI,iBAAmB,QAAgB;QAAE,WAAc;aAAd,UAAc,EAAd,qBAAc,EAAd,IAAc;YAAd,0BAAc;;QAAhC,aAAQ,GAAR,QAAQ,CAAQ;QAM3B,OAAE,GAAW,EAAE,CAAC;IALxB,CAAC;IACD,uBAAK,GAAL;QACI,MAAM,CAAC,MAAM,GAAG,IAAI,CAAC,QAAQ,GAAG,OAAO,CAAC;IAC5C,CAAC;IAGO,oBAAE,GAAV;QACI,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC;IACzB,CAAC;IACD,sBAAI,8BAAS;aAAb;YACI,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC;QACzB,CAAC;aACD,UAAc,SAAiB;YAC3B,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;QAC9B,CAAC;;;OAHA;;IAIL,cAAC;AAAD,CAAC,AAjBD,IAiBC"}
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapValidationClass.sourcemap.txt b/tests/baselines/reference/sourceMapValidationClass.sourcemap.txt
index 08fdfe2bfc66b..4be46d7444bdc 100644
--- a/tests/baselines/reference/sourceMapValidationClass.sourcemap.txt
+++ b/tests/baselines/reference/sourceMapValidationClass.sourcemap.txt
@@ -8,11 +8,25 @@ sources: sourceMapValidationClass.ts
 emittedFile:tests/cases/compiler/sourceMapValidationClass.js
 sourceFile:sourceMapValidationClass.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>var Greeter = (function () {
 1 >
 2 >^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
-1 >Emitted(1, 1) Source(1, 1) + SourceIndex(0)
+1 >Emitted(15, 1) Source(1, 1) + SourceIndex(0)
 ---
 >>>    function Greeter(greeting) {
 1->^^^^
@@ -22,9 +36,9 @@ sourceFile:sourceMapValidationClass.ts
   >    
 2 >    constructor(public 
 3 >                     greeting: string
-1->Emitted(2, 5) Source(2, 5) + SourceIndex(0)
-2 >Emitted(2, 22) Source(2, 24) + SourceIndex(0)
-3 >Emitted(2, 30) Source(2, 40) + SourceIndex(0)
+1->Emitted(16, 5) Source(2, 5) + SourceIndex(0)
+2 >Emitted(16, 22) Source(2, 24) + SourceIndex(0)
+3 >Emitted(16, 30) Source(2, 40) + SourceIndex(0)
 ---
 >>>        var b = [];
 1 >^^^^^^^^
@@ -32,8 +46,8 @@ sourceFile:sourceMapValidationClass.ts
 3 >                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >, 
 2 >        ...b: string[]
-1 >Emitted(3, 9) Source(2, 42) + SourceIndex(0)
-2 >Emitted(3, 20) Source(2, 56) + SourceIndex(0)
+1 >Emitted(17, 9) Source(2, 42) + SourceIndex(0)
+2 >Emitted(17, 20) Source(2, 56) + SourceIndex(0)
 ---
 >>>        for (var _i = 1; _i < arguments.length; _i++) {
 1->^^^^^^^^^^^^^
@@ -48,20 +62,20 @@ sourceFile:sourceMapValidationClass.ts
 4 >                         ...b: string[]
 5 >                                              
 6 >                                                ...b: string[]
-1->Emitted(4, 14) Source(2, 42) + SourceIndex(0)
-2 >Emitted(4, 24) Source(2, 56) + SourceIndex(0)
-3 >Emitted(4, 26) Source(2, 42) + SourceIndex(0)
-4 >Emitted(4, 47) Source(2, 56) + SourceIndex(0)
-5 >Emitted(4, 49) Source(2, 42) + SourceIndex(0)
-6 >Emitted(4, 53) Source(2, 56) + SourceIndex(0)
+1->Emitted(18, 14) Source(2, 42) + SourceIndex(0)
+2 >Emitted(18, 24) Source(2, 56) + SourceIndex(0)
+3 >Emitted(18, 26) Source(2, 42) + SourceIndex(0)
+4 >Emitted(18, 47) Source(2, 56) + SourceIndex(0)
+5 >Emitted(18, 49) Source(2, 42) + SourceIndex(0)
+6 >Emitted(18, 53) Source(2, 56) + SourceIndex(0)
 ---
 >>>            b[_i - 1] = arguments[_i];
 1 >^^^^^^^^^^^^
 2 >            ^^^^^^^^^^^^^^^^^^^^^^^^^^
 1 >
 2 >            ...b: string[]
-1 >Emitted(5, 13) Source(2, 42) + SourceIndex(0)
-2 >Emitted(5, 39) Source(2, 56) + SourceIndex(0)
+1 >Emitted(19, 13) Source(2, 42) + SourceIndex(0)
+2 >Emitted(19, 39) Source(2, 56) + SourceIndex(0)
 ---
 >>>        }
 >>>        this.greeting = greeting;
@@ -75,11 +89,11 @@ sourceFile:sourceMapValidationClass.ts
 3 >                     
 4 >                        greeting
 5 >                                : string
-1 >Emitted(7, 9) Source(2, 24) + SourceIndex(0)
-2 >Emitted(7, 22) Source(2, 32) + SourceIndex(0)
-3 >Emitted(7, 25) Source(2, 24) + SourceIndex(0)
-4 >Emitted(7, 33) Source(2, 32) + SourceIndex(0)
-5 >Emitted(7, 34) Source(2, 40) + SourceIndex(0)
+1 >Emitted(21, 9) Source(2, 24) + SourceIndex(0)
+2 >Emitted(21, 22) Source(2, 32) + SourceIndex(0)
+3 >Emitted(21, 25) Source(2, 24) + SourceIndex(0)
+4 >Emitted(21, 33) Source(2, 32) + SourceIndex(0)
+5 >Emitted(21, 34) Source(2, 40) + SourceIndex(0)
 ---
 >>>        this.x1 = 10;
 1 >^^^^^^^^
@@ -98,11 +112,11 @@ sourceFile:sourceMapValidationClass.ts
 3 >               : number = 
 4 >                  10
 5 >                    ;
-1 >Emitted(8, 9) Source(8, 13) + SourceIndex(0)
-2 >Emitted(8, 16) Source(8, 15) + SourceIndex(0)
-3 >Emitted(8, 19) Source(8, 26) + SourceIndex(0)
-4 >Emitted(8, 21) Source(8, 28) + SourceIndex(0)
-5 >Emitted(8, 22) Source(8, 29) + SourceIndex(0)
+1 >Emitted(22, 9) Source(8, 13) + SourceIndex(0)
+2 >Emitted(22, 16) Source(8, 15) + SourceIndex(0)
+3 >Emitted(22, 19) Source(8, 26) + SourceIndex(0)
+4 >Emitted(22, 21) Source(8, 28) + SourceIndex(0)
+5 >Emitted(22, 22) Source(8, 29) + SourceIndex(0)
 ---
 >>>    }
 1 >^^^^
@@ -110,8 +124,8 @@ sourceFile:sourceMapValidationClass.ts
 3 >     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
 2 >    }
-1 >Emitted(9, 5) Source(3, 5) + SourceIndex(0)
-2 >Emitted(9, 6) Source(3, 6) + SourceIndex(0)
+1 >Emitted(23, 5) Source(3, 5) + SourceIndex(0)
+2 >Emitted(23, 6) Source(3, 6) + SourceIndex(0)
 ---
 >>>    Greeter.prototype.greet = function () {
 1->^^^^
@@ -122,9 +136,9 @@ sourceFile:sourceMapValidationClass.ts
   >    
 2 >    greet
 3 >                           
-1->Emitted(10, 5) Source(4, 5) + SourceIndex(0)
-2 >Emitted(10, 28) Source(4, 10) + SourceIndex(0)
-3 >Emitted(10, 31) Source(4, 5) + SourceIndex(0)
+1->Emitted(24, 5) Source(4, 5) + SourceIndex(0)
+2 >Emitted(24, 28) Source(4, 10) + SourceIndex(0)
+3 >Emitted(24, 31) Source(4, 5) + SourceIndex(0)
 ---
 >>>        return "<h1>" + this.greeting + "</h1>";
 1->^^^^^^^^
@@ -150,17 +164,17 @@ sourceFile:sourceMapValidationClass.ts
 9 >                                      + 
 10>                                        "</h1>"
 11>                                               ;
-1->Emitted(11, 9) Source(5, 9) + SourceIndex(0)
-2 >Emitted(11, 15) Source(5, 15) + SourceIndex(0)
-3 >Emitted(11, 16) Source(5, 16) + SourceIndex(0)
-4 >Emitted(11, 22) Source(5, 22) + SourceIndex(0)
-5 >Emitted(11, 25) Source(5, 25) + SourceIndex(0)
-6 >Emitted(11, 29) Source(5, 29) + SourceIndex(0)
-7 >Emitted(11, 30) Source(5, 30) + SourceIndex(0)
-8 >Emitted(11, 38) Source(5, 38) + SourceIndex(0)
-9 >Emitted(11, 41) Source(5, 41) + SourceIndex(0)
-10>Emitted(11, 48) Source(5, 48) + SourceIndex(0)
-11>Emitted(11, 49) Source(5, 49) + SourceIndex(0)
+1->Emitted(25, 9) Source(5, 9) + SourceIndex(0)
+2 >Emitted(25, 15) Source(5, 15) + SourceIndex(0)
+3 >Emitted(25, 16) Source(5, 16) + SourceIndex(0)
+4 >Emitted(25, 22) Source(5, 22) + SourceIndex(0)
+5 >Emitted(25, 25) Source(5, 25) + SourceIndex(0)
+6 >Emitted(25, 29) Source(5, 29) + SourceIndex(0)
+7 >Emitted(25, 30) Source(5, 30) + SourceIndex(0)
+8 >Emitted(25, 38) Source(5, 38) + SourceIndex(0)
+9 >Emitted(25, 41) Source(5, 41) + SourceIndex(0)
+10>Emitted(25, 48) Source(5, 48) + SourceIndex(0)
+11>Emitted(25, 49) Source(5, 49) + SourceIndex(0)
 ---
 >>>    };
 1 >^^^^
@@ -169,8 +183,8 @@ sourceFile:sourceMapValidationClass.ts
 1 >
   >    
 2 >    }
-1 >Emitted(12, 5) Source(6, 5) + SourceIndex(0)
-2 >Emitted(12, 6) Source(6, 6) + SourceIndex(0)
+1 >Emitted(26, 5) Source(6, 5) + SourceIndex(0)
+2 >Emitted(26, 6) Source(6, 6) + SourceIndex(0)
 ---
 >>>    Greeter.prototype.fn = function () {
 1->^^^^
@@ -183,9 +197,9 @@ sourceFile:sourceMapValidationClass.ts
   >    private 
 2 >    fn
 3 >                        
-1->Emitted(13, 5) Source(9, 13) + SourceIndex(0)
-2 >Emitted(13, 25) Source(9, 15) + SourceIndex(0)
-3 >Emitted(13, 28) Source(9, 5) + SourceIndex(0)
+1->Emitted(27, 5) Source(9, 13) + SourceIndex(0)
+2 >Emitted(27, 25) Source(9, 15) + SourceIndex(0)
+3 >Emitted(27, 28) Source(9, 5) + SourceIndex(0)
 ---
 >>>        return this.greeting;
 1->^^^^^^^^
@@ -203,13 +217,13 @@ sourceFile:sourceMapValidationClass.ts
 5 >                   .
 6 >                    greeting
 7 >                            ;
-1->Emitted(14, 9) Source(10, 9) + SourceIndex(0)
-2 >Emitted(14, 15) Source(10, 15) + SourceIndex(0)
-3 >Emitted(14, 16) Source(10, 16) + SourceIndex(0)
-4 >Emitted(14, 20) Source(10, 20) + SourceIndex(0)
-5 >Emitted(14, 21) Source(10, 21) + SourceIndex(0)
-6 >Emitted(14, 29) Source(10, 29) + SourceIndex(0)
-7 >Emitted(14, 30) Source(10, 30) + SourceIndex(0)
+1->Emitted(28, 9) Source(10, 9) + SourceIndex(0)
+2 >Emitted(28, 15) Source(10, 15) + SourceIndex(0)
+3 >Emitted(28, 16) Source(10, 16) + SourceIndex(0)
+4 >Emitted(28, 20) Source(10, 20) + SourceIndex(0)
+5 >Emitted(28, 21) Source(10, 21) + SourceIndex(0)
+6 >Emitted(28, 29) Source(10, 29) + SourceIndex(0)
+7 >Emitted(28, 30) Source(10, 30) + SourceIndex(0)
 ---
 >>>    };
 1 >^^^^
@@ -218,8 +232,8 @@ sourceFile:sourceMapValidationClass.ts
 1 >
   >    
 2 >    }
-1 >Emitted(15, 5) Source(11, 5) + SourceIndex(0)
-2 >Emitted(15, 6) Source(11, 6) + SourceIndex(0)
+1 >Emitted(29, 5) Source(11, 5) + SourceIndex(0)
+2 >Emitted(29, 6) Source(11, 6) + SourceIndex(0)
 ---
 >>>    Object.defineProperty(Greeter.prototype, "greetings", {
 1->^^^^
@@ -229,15 +243,15 @@ sourceFile:sourceMapValidationClass.ts
   >    
 2 >    get 
 3 >                          greetings
-1->Emitted(16, 5) Source(12, 5) + SourceIndex(0)
-2 >Emitted(16, 27) Source(12, 9) + SourceIndex(0)
-3 >Emitted(16, 57) Source(12, 18) + SourceIndex(0)
+1->Emitted(30, 5) Source(12, 5) + SourceIndex(0)
+2 >Emitted(30, 27) Source(12, 9) + SourceIndex(0)
+3 >Emitted(30, 57) Source(12, 18) + SourceIndex(0)
 ---
 >>>        get: function () {
 1 >^^^^^^^^^^^^^
 2 >             ^^^^^^^^^^^^^^^^^^^^^->
 1 >
-1 >Emitted(17, 14) Source(12, 5) + SourceIndex(0)
+1 >Emitted(31, 14) Source(12, 5) + SourceIndex(0)
 ---
 >>>            return this.greeting;
 1->^^^^^^^^^^^^
@@ -255,13 +269,13 @@ sourceFile:sourceMapValidationClass.ts
 5 >                       .
 6 >                        greeting
 7 >                                ;
-1->Emitted(18, 13) Source(13, 9) + SourceIndex(0)
-2 >Emitted(18, 19) Source(13, 15) + SourceIndex(0)
-3 >Emitted(18, 20) Source(13, 16) + SourceIndex(0)
-4 >Emitted(18, 24) Source(13, 20) + SourceIndex(0)
-5 >Emitted(18, 25) Source(13, 21) + SourceIndex(0)
-6 >Emitted(18, 33) Source(13, 29) + SourceIndex(0)
-7 >Emitted(18, 34) Source(13, 30) + SourceIndex(0)
+1->Emitted(32, 13) Source(13, 9) + SourceIndex(0)
+2 >Emitted(32, 19) Source(13, 15) + SourceIndex(0)
+3 >Emitted(32, 20) Source(13, 16) + SourceIndex(0)
+4 >Emitted(32, 24) Source(13, 20) + SourceIndex(0)
+5 >Emitted(32, 25) Source(13, 21) + SourceIndex(0)
+6 >Emitted(32, 33) Source(13, 29) + SourceIndex(0)
+7 >Emitted(32, 34) Source(13, 30) + SourceIndex(0)
 ---
 >>>        },
 1 >^^^^^^^^
@@ -270,8 +284,8 @@ sourceFile:sourceMapValidationClass.ts
 1 >
   >    
 2 >        }
-1 >Emitted(19, 9) Source(14, 5) + SourceIndex(0)
-2 >Emitted(19, 10) Source(14, 6) + SourceIndex(0)
+1 >Emitted(33, 9) Source(14, 5) + SourceIndex(0)
+2 >Emitted(33, 10) Source(14, 6) + SourceIndex(0)
 ---
 >>>        set: function (greetings) {
 1->^^^^^^^^^^^^^
@@ -282,9 +296,9 @@ sourceFile:sourceMapValidationClass.ts
   >    
 2 >             set greetings(
 3 >                       greetings: string
-1->Emitted(20, 14) Source(15, 5) + SourceIndex(0)
-2 >Emitted(20, 24) Source(15, 19) + SourceIndex(0)
-3 >Emitted(20, 33) Source(15, 36) + SourceIndex(0)
+1->Emitted(34, 14) Source(15, 5) + SourceIndex(0)
+2 >Emitted(34, 24) Source(15, 19) + SourceIndex(0)
+3 >Emitted(34, 33) Source(15, 36) + SourceIndex(0)
 ---
 >>>            this.greeting = greetings;
 1->^^^^^^^^^^^^
@@ -302,13 +316,13 @@ sourceFile:sourceMapValidationClass.ts
 5 >                          = 
 6 >                            greetings
 7 >                                     ;
-1->Emitted(21, 13) Source(16, 9) + SourceIndex(0)
-2 >Emitted(21, 17) Source(16, 13) + SourceIndex(0)
-3 >Emitted(21, 18) Source(16, 14) + SourceIndex(0)
-4 >Emitted(21, 26) Source(16, 22) + SourceIndex(0)
-5 >Emitted(21, 29) Source(16, 25) + SourceIndex(0)
-6 >Emitted(21, 38) Source(16, 34) + SourceIndex(0)
-7 >Emitted(21, 39) Source(16, 35) + SourceIndex(0)
+1->Emitted(35, 13) Source(16, 9) + SourceIndex(0)
+2 >Emitted(35, 17) Source(16, 13) + SourceIndex(0)
+3 >Emitted(35, 18) Source(16, 14) + SourceIndex(0)
+4 >Emitted(35, 26) Source(16, 22) + SourceIndex(0)
+5 >Emitted(35, 29) Source(16, 25) + SourceIndex(0)
+6 >Emitted(35, 38) Source(16, 34) + SourceIndex(0)
+7 >Emitted(35, 39) Source(16, 35) + SourceIndex(0)
 ---
 >>>        },
 1 >^^^^^^^^
@@ -317,17 +331,18 @@ sourceFile:sourceMapValidationClass.ts
 1 >
   >    
 2 >        }
-1 >Emitted(22, 9) Source(17, 5) + SourceIndex(0)
-2 >Emitted(22, 10) Source(17, 6) + SourceIndex(0)
+1 >Emitted(36, 9) Source(17, 5) + SourceIndex(0)
+2 >Emitted(36, 10) Source(17, 6) + SourceIndex(0)
 ---
 >>>        enumerable: true,
 >>>        configurable: true
 >>>    });
 1->^^^^^^^
-2 >       ^^^^^^^^^^^^^->
+2 >       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->
-1->Emitted(25, 8) Source(14, 6) + SourceIndex(0)
+1->Emitted(39, 8) Source(14, 6) + SourceIndex(0)
 ---
+>>>    __names(Greeter.prototype, ["greet", "fn"]);
 >>>    return Greeter;
 1->^^^^
 2 >    ^^^^^^^^^^^^^^
@@ -337,8 +352,8 @@ sourceFile:sourceMapValidationClass.ts
   >    }
   >
 2 >    }
-1->Emitted(26, 5) Source(18, 1) + SourceIndex(0)
-2 >Emitted(26, 19) Source(18, 2) + SourceIndex(0)
+1->Emitted(41, 5) Source(18, 1) + SourceIndex(0)
+2 >Emitted(41, 19) Source(18, 2) + SourceIndex(0)
 ---
 >>>}());
 1 >
@@ -367,9 +382,9 @@ sourceFile:sourceMapValidationClass.ts
   >         this.greeting = greetings;
   >     }
   > }
-1 >Emitted(27, 1) Source(18, 1) + SourceIndex(0)
-2 >Emitted(27, 2) Source(18, 2) + SourceIndex(0)
-3 >Emitted(27, 2) Source(1, 1) + SourceIndex(0)
-4 >Emitted(27, 6) Source(18, 2) + SourceIndex(0)
+1 >Emitted(42, 1) Source(18, 1) + SourceIndex(0)
+2 >Emitted(42, 2) Source(18, 2) + SourceIndex(0)
+3 >Emitted(42, 2) Source(1, 1) + SourceIndex(0)
+4 >Emitted(42, 6) Source(18, 2) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=sourceMapValidationClass.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapValidationClasses.js b/tests/baselines/reference/sourceMapValidationClasses.js
index 64517690f26e4..29b52fbd0a3ac 100644
--- a/tests/baselines/reference/sourceMapValidationClasses.js
+++ b/tests/baselines/reference/sourceMapValidationClasses.js
@@ -37,6 +37,20 @@ module Foo.Bar {
 }
 
 //// [sourceMapValidationClasses.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo;
 (function (Foo) {
     var Bar;
@@ -49,6 +63,7 @@ var Foo;
             Greeter.prototype.greet = function () {
                 return "<h1>" + this.greeting + "</h1>";
             };
+            __names(Greeter.prototype, ["greet"]);
             return Greeter;
         }());
         function foo(greeting) {
diff --git a/tests/baselines/reference/sourceMapValidationClasses.js.map b/tests/baselines/reference/sourceMapValidationClasses.js.map
index 294ce8b315d06..0568746930683 100644
--- a/tests/baselines/reference/sourceMapValidationClasses.js.map
+++ b/tests/baselines/reference/sourceMapValidationClasses.js.map
@@ -1,2 +1,2 @@
 //// [sourceMapValidationClasses.js.map]
-{"version":3,"file":"sourceMapValidationClasses.js","sourceRoot":"","sources":["sourceMapValidationClasses.ts"],"names":[],"mappings":"AAAA,IAAO,GAAG,CAmCT;AAnCD,WAAO,GAAG;IAAC,IAAA,GAAG,CAmCb;IAnCU,WAAA,GAAG;QACV,YAAY,CAAC;QAEb;YACI,iBAAmB,QAAgB;gBAAhB,aAAQ,GAAR,QAAQ,CAAQ;YACnC,CAAC;YAED,uBAAK,GAAL;gBACI,MAAM,CAAC,MAAM,GAAG,IAAI,CAAC,QAAQ,GAAG,OAAO,CAAC;YAC5C,CAAC;YACL,cAAC;QAAD,CAAC,AAPD,IAOC;QAGD,aAAa,QAAgB;YACzB,MAAM,CAAC,IAAI,OAAO,CAAC,QAAQ,CAAC,CAAC;QACjC,CAAC;QAED,IAAI,OAAO,GAAG,IAAI,OAAO,CAAC,eAAe,CAAC,CAAC;QAC3C,IAAI,GAAG,GAAG,OAAO,CAAC,KAAK,EAAE,CAAC;QAE1B,cAAc,QAAgB;YAAE,kBAAiB,mBAAmB,MAAU;iBAA9C,UAA8C,EAA9C,qBAA8C,EAA9C,IAA8C;gBAA9C,sCAA8C;;YAC1E,IAAI,QAAQ,GAAc,EAAE,CAAC,CAAC,0BAA0B;YACxD,QAAQ,CAAC,CAAC,CAAC,GAAG,IAAI,OAAO,CAAC,QAAQ,CAAC,CAAC;YACpC,GAAG,CAAC,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,aAAa,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE,CAAC;gBAC5C,QAAQ,CAAC,IAAI,CAAC,IAAI,OAAO,CAAC,aAAa,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;YACjD,CAAC;YAED,MAAM,CAAC,QAAQ,CAAC;QACpB,CAAC;QAED,IAAI,CAAC,GAAG,IAAI,CAAC,OAAO,EAAE,OAAO,EAAE,GAAG,CAAC,CAAC;QACpC,qCAAqC;QACrC,GAAG,CAAC,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE,CAAC;YAChC,CAAC,CAAC,CAAC,CAAC,CAAC,KAAK,EAAE,CAAC;QACjB,CAAC;IACL,CAAC,EAnCU,GAAG,GAAH,OAAG,KAAH,OAAG,QAmCb;AAAD,CAAC,EAnCM,GAAG,KAAH,GAAG,QAmCT"}
\ No newline at end of file
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\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapValidationClasses.sourcemap.txt b/tests/baselines/reference/sourceMapValidationClasses.sourcemap.txt
index 931c113ddc85b..543f90a828921 100644
--- a/tests/baselines/reference/sourceMapValidationClasses.sourcemap.txt
+++ b/tests/baselines/reference/sourceMapValidationClasses.sourcemap.txt
@@ -8,6 +8,20 @@ sources: sourceMapValidationClasses.ts
 emittedFile:tests/cases/compiler/sourceMapValidationClasses.js
 sourceFile:sourceMapValidationClasses.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>var Foo;
 1 >
 2 >^^^^
@@ -53,10 +67,10 @@ sourceFile:sourceMapValidationClasses.ts
   >               b[j].greet();
   >           }
   >       }
-1 >Emitted(1, 1) Source(1, 1) + SourceIndex(0)
-2 >Emitted(1, 5) Source(1, 8) + SourceIndex(0)
-3 >Emitted(1, 8) Source(1, 11) + SourceIndex(0)
-4 >Emitted(1, 9) Source(36, 2) + SourceIndex(0)
+1 >Emitted(15, 1) Source(1, 1) + SourceIndex(0)
+2 >Emitted(15, 5) Source(1, 8) + SourceIndex(0)
+3 >Emitted(15, 8) Source(1, 11) + SourceIndex(0)
+4 >Emitted(15, 9) Source(36, 2) + SourceIndex(0)
 ---
 >>>(function (Foo) {
 1->
@@ -65,9 +79,9 @@ sourceFile:sourceMapValidationClasses.ts
 1->
 2 >module 
 3 >           Foo
-1->Emitted(2, 1) Source(1, 1) + SourceIndex(0)
-2 >Emitted(2, 12) Source(1, 8) + SourceIndex(0)
-3 >Emitted(2, 15) Source(1, 11) + SourceIndex(0)
+1->Emitted(16, 1) Source(1, 1) + SourceIndex(0)
+2 >Emitted(16, 12) Source(1, 8) + SourceIndex(0)
+3 >Emitted(16, 15) Source(1, 11) + SourceIndex(0)
 ---
 >>>    var Bar;
 1 >^^^^
@@ -114,10 +128,10 @@ sourceFile:sourceMapValidationClasses.ts
   >                   b[j].greet();
   >               }
   >           }
-1 >Emitted(3, 5) Source(1, 12) + SourceIndex(0)
-2 >Emitted(3, 9) Source(1, 12) + SourceIndex(0)
-3 >Emitted(3, 12) Source(1, 15) + SourceIndex(0)
-4 >Emitted(3, 13) Source(36, 2) + SourceIndex(0)
+1 >Emitted(17, 5) Source(1, 12) + SourceIndex(0)
+2 >Emitted(17, 9) Source(1, 12) + SourceIndex(0)
+3 >Emitted(17, 12) Source(1, 15) + SourceIndex(0)
+4 >Emitted(17, 13) Source(36, 2) + SourceIndex(0)
 ---
 >>>    (function (Bar) {
 1->^^^^
@@ -127,9 +141,9 @@ sourceFile:sourceMapValidationClasses.ts
 1->
 2 >    
 3 >               Bar
-1->Emitted(4, 5) Source(1, 12) + SourceIndex(0)
-2 >Emitted(4, 16) Source(1, 12) + SourceIndex(0)
-3 >Emitted(4, 19) Source(1, 15) + SourceIndex(0)
+1->Emitted(18, 5) Source(1, 12) + SourceIndex(0)
+2 >Emitted(18, 16) Source(1, 12) + SourceIndex(0)
+3 >Emitted(18, 19) Source(1, 15) + SourceIndex(0)
 ---
 >>>        "use strict";
 1->^^^^^^^^
@@ -140,9 +154,9 @@ sourceFile:sourceMapValidationClasses.ts
   >    
 2 >        "use strict"
 3 >                    ;
-1->Emitted(5, 9) Source(2, 5) + SourceIndex(0)
-2 >Emitted(5, 21) Source(2, 17) + SourceIndex(0)
-3 >Emitted(5, 22) Source(2, 18) + SourceIndex(0)
+1->Emitted(19, 9) Source(2, 5) + SourceIndex(0)
+2 >Emitted(19, 21) Source(2, 17) + SourceIndex(0)
+3 >Emitted(19, 22) Source(2, 18) + SourceIndex(0)
 ---
 >>>        var Greeter = (function () {
 1->^^^^^^^^
@@ -150,7 +164,7 @@ sourceFile:sourceMapValidationClasses.ts
 1->
   >
   >    
-1->Emitted(6, 9) Source(4, 5) + SourceIndex(0)
+1->Emitted(20, 9) Source(4, 5) + SourceIndex(0)
 ---
 >>>            function Greeter(greeting) {
 1->^^^^^^^^^^^^
@@ -161,9 +175,9 @@ sourceFile:sourceMapValidationClasses.ts
   >        
 2 >            constructor(public 
 3 >                             greeting: string
-1->Emitted(7, 13) Source(5, 9) + SourceIndex(0)
-2 >Emitted(7, 30) Source(5, 28) + SourceIndex(0)
-3 >Emitted(7, 38) Source(5, 44) + SourceIndex(0)
+1->Emitted(21, 13) Source(5, 9) + SourceIndex(0)
+2 >Emitted(21, 30) Source(5, 28) + SourceIndex(0)
+3 >Emitted(21, 38) Source(5, 44) + SourceIndex(0)
 ---
 >>>                this.greeting = greeting;
 1->^^^^^^^^^^^^^^^^
@@ -176,11 +190,11 @@ sourceFile:sourceMapValidationClasses.ts
 3 >                             
 4 >                                greeting
 5 >                                        : string
-1->Emitted(8, 17) Source(5, 28) + SourceIndex(0)
-2 >Emitted(8, 30) Source(5, 36) + SourceIndex(0)
-3 >Emitted(8, 33) Source(5, 28) + SourceIndex(0)
-4 >Emitted(8, 41) Source(5, 36) + SourceIndex(0)
-5 >Emitted(8, 42) Source(5, 44) + SourceIndex(0)
+1->Emitted(22, 17) Source(5, 28) + SourceIndex(0)
+2 >Emitted(22, 30) Source(5, 36) + SourceIndex(0)
+3 >Emitted(22, 33) Source(5, 28) + SourceIndex(0)
+4 >Emitted(22, 41) Source(5, 36) + SourceIndex(0)
+5 >Emitted(22, 42) Source(5, 44) + SourceIndex(0)
 ---
 >>>            }
 1 >^^^^^^^^^^^^
@@ -189,8 +203,8 @@ sourceFile:sourceMapValidationClasses.ts
 1 >) {
   >        
 2 >            }
-1 >Emitted(9, 13) Source(6, 9) + SourceIndex(0)
-2 >Emitted(9, 14) Source(6, 10) + SourceIndex(0)
+1 >Emitted(23, 13) Source(6, 9) + SourceIndex(0)
+2 >Emitted(23, 14) Source(6, 10) + SourceIndex(0)
 ---
 >>>            Greeter.prototype.greet = function () {
 1->^^^^^^^^^^^^
@@ -202,9 +216,9 @@ sourceFile:sourceMapValidationClasses.ts
   >        
 2 >            greet
 3 >                                   
-1->Emitted(10, 13) Source(8, 9) + SourceIndex(0)
-2 >Emitted(10, 36) Source(8, 14) + SourceIndex(0)
-3 >Emitted(10, 39) Source(8, 9) + SourceIndex(0)
+1->Emitted(24, 13) Source(8, 9) + SourceIndex(0)
+2 >Emitted(24, 36) Source(8, 14) + SourceIndex(0)
+3 >Emitted(24, 39) Source(8, 9) + SourceIndex(0)
 ---
 >>>                return "<h1>" + this.greeting + "</h1>";
 1->^^^^^^^^^^^^^^^^
@@ -230,36 +244,37 @@ sourceFile:sourceMapValidationClasses.ts
 9 >                                              + 
 10>                                                "</h1>"
 11>                                                       ;
-1->Emitted(11, 17) Source(9, 13) + SourceIndex(0)
-2 >Emitted(11, 23) Source(9, 19) + SourceIndex(0)
-3 >Emitted(11, 24) Source(9, 20) + SourceIndex(0)
-4 >Emitted(11, 30) Source(9, 26) + SourceIndex(0)
-5 >Emitted(11, 33) Source(9, 29) + SourceIndex(0)
-6 >Emitted(11, 37) Source(9, 33) + SourceIndex(0)
-7 >Emitted(11, 38) Source(9, 34) + SourceIndex(0)
-8 >Emitted(11, 46) Source(9, 42) + SourceIndex(0)
-9 >Emitted(11, 49) Source(9, 45) + SourceIndex(0)
-10>Emitted(11, 56) Source(9, 52) + SourceIndex(0)
-11>Emitted(11, 57) Source(9, 53) + SourceIndex(0)
+1->Emitted(25, 17) Source(9, 13) + SourceIndex(0)
+2 >Emitted(25, 23) Source(9, 19) + SourceIndex(0)
+3 >Emitted(25, 24) Source(9, 20) + SourceIndex(0)
+4 >Emitted(25, 30) Source(9, 26) + SourceIndex(0)
+5 >Emitted(25, 33) Source(9, 29) + SourceIndex(0)
+6 >Emitted(25, 37) Source(9, 33) + SourceIndex(0)
+7 >Emitted(25, 38) Source(9, 34) + SourceIndex(0)
+8 >Emitted(25, 46) Source(9, 42) + SourceIndex(0)
+9 >Emitted(25, 49) Source(9, 45) + SourceIndex(0)
+10>Emitted(25, 56) Source(9, 52) + SourceIndex(0)
+11>Emitted(25, 57) Source(9, 53) + SourceIndex(0)
 ---
 >>>            };
 1 >^^^^^^^^^^^^
 2 >            ^
-3 >             ^^^^^^^^^^^^^^^->
+3 >             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >        
 2 >            }
-1 >Emitted(12, 13) Source(10, 9) + SourceIndex(0)
-2 >Emitted(12, 14) Source(10, 10) + SourceIndex(0)
+1 >Emitted(26, 13) Source(10, 9) + SourceIndex(0)
+2 >Emitted(26, 14) Source(10, 10) + SourceIndex(0)
 ---
+>>>            __names(Greeter.prototype, ["greet"]);
 >>>            return Greeter;
 1->^^^^^^^^^^^^
 2 >            ^^^^^^^^^^^^^^
 1->
   >    
 2 >            }
-1->Emitted(13, 13) Source(11, 5) + SourceIndex(0)
-2 >Emitted(13, 27) Source(11, 6) + SourceIndex(0)
+1->Emitted(28, 13) Source(11, 5) + SourceIndex(0)
+2 >Emitted(28, 27) Source(11, 6) + SourceIndex(0)
 ---
 >>>        }());
 1 >^^^^^^^^
@@ -278,10 +293,10 @@ sourceFile:sourceMapValidationClasses.ts
   >                     return "<h1>" + this.greeting + "</h1>";
   >                 }
   >             }
-1 >Emitted(14, 9) Source(11, 5) + SourceIndex(0)
-2 >Emitted(14, 10) Source(11, 6) + SourceIndex(0)
-3 >Emitted(14, 10) Source(4, 5) + SourceIndex(0)
-4 >Emitted(14, 14) Source(11, 6) + SourceIndex(0)
+1 >Emitted(29, 9) Source(11, 5) + SourceIndex(0)
+2 >Emitted(29, 10) Source(11, 6) + SourceIndex(0)
+3 >Emitted(29, 10) Source(4, 5) + SourceIndex(0)
+4 >Emitted(29, 14) Source(11, 6) + SourceIndex(0)
 ---
 >>>        function foo(greeting) {
 1->^^^^^^^^
@@ -294,9 +309,9 @@ sourceFile:sourceMapValidationClasses.ts
   >    
 2 >        function foo(
 3 >                     greeting: string
-1->Emitted(15, 9) Source(14, 5) + SourceIndex(0)
-2 >Emitted(15, 22) Source(14, 18) + SourceIndex(0)
-3 >Emitted(15, 30) Source(14, 34) + SourceIndex(0)
+1->Emitted(30, 9) Source(14, 5) + SourceIndex(0)
+2 >Emitted(30, 22) Source(14, 18) + SourceIndex(0)
+3 >Emitted(30, 30) Source(14, 34) + SourceIndex(0)
 ---
 >>>            return new Greeter(greeting);
 1->^^^^^^^^^^^^
@@ -318,15 +333,15 @@ sourceFile:sourceMapValidationClasses.ts
 7 >                               greeting
 8 >                                       )
 9 >                                        ;
-1->Emitted(16, 13) Source(15, 9) + SourceIndex(0)
-2 >Emitted(16, 19) Source(15, 15) + SourceIndex(0)
-3 >Emitted(16, 20) Source(15, 16) + SourceIndex(0)
-4 >Emitted(16, 24) Source(15, 20) + SourceIndex(0)
-5 >Emitted(16, 31) Source(15, 27) + SourceIndex(0)
-6 >Emitted(16, 32) Source(15, 28) + SourceIndex(0)
-7 >Emitted(16, 40) Source(15, 36) + SourceIndex(0)
-8 >Emitted(16, 41) Source(15, 37) + SourceIndex(0)
-9 >Emitted(16, 42) Source(15, 38) + SourceIndex(0)
+1->Emitted(31, 13) Source(15, 9) + SourceIndex(0)
+2 >Emitted(31, 19) Source(15, 15) + SourceIndex(0)
+3 >Emitted(31, 20) Source(15, 16) + SourceIndex(0)
+4 >Emitted(31, 24) Source(15, 20) + SourceIndex(0)
+5 >Emitted(31, 31) Source(15, 27) + SourceIndex(0)
+6 >Emitted(31, 32) Source(15, 28) + SourceIndex(0)
+7 >Emitted(31, 40) Source(15, 36) + SourceIndex(0)
+8 >Emitted(31, 41) Source(15, 37) + SourceIndex(0)
+9 >Emitted(31, 42) Source(15, 38) + SourceIndex(0)
 ---
 >>>        }
 1 >^^^^^^^^
@@ -335,8 +350,8 @@ sourceFile:sourceMapValidationClasses.ts
 1 >
   >    
 2 >        }
-1 >Emitted(17, 9) Source(16, 5) + SourceIndex(0)
-2 >Emitted(17, 10) Source(16, 6) + SourceIndex(0)
+1 >Emitted(32, 9) Source(16, 5) + SourceIndex(0)
+2 >Emitted(32, 10) Source(16, 6) + SourceIndex(0)
 ---
 >>>        var greeter = new Greeter("Hello, world!");
 1->^^^^^^^^
@@ -361,16 +376,16 @@ sourceFile:sourceMapValidationClasses.ts
 8 >                                  "Hello, world!"
 9 >                                                 )
 10>                                                  ;
-1->Emitted(18, 9) Source(18, 5) + SourceIndex(0)
-2 >Emitted(18, 13) Source(18, 9) + SourceIndex(0)
-3 >Emitted(18, 20) Source(18, 16) + SourceIndex(0)
-4 >Emitted(18, 23) Source(18, 19) + SourceIndex(0)
-5 >Emitted(18, 27) Source(18, 23) + SourceIndex(0)
-6 >Emitted(18, 34) Source(18, 30) + SourceIndex(0)
-7 >Emitted(18, 35) Source(18, 31) + SourceIndex(0)
-8 >Emitted(18, 50) Source(18, 46) + SourceIndex(0)
-9 >Emitted(18, 51) Source(18, 47) + SourceIndex(0)
-10>Emitted(18, 52) Source(18, 48) + SourceIndex(0)
+1->Emitted(33, 9) Source(18, 5) + SourceIndex(0)
+2 >Emitted(33, 13) Source(18, 9) + SourceIndex(0)
+3 >Emitted(33, 20) Source(18, 16) + SourceIndex(0)
+4 >Emitted(33, 23) Source(18, 19) + SourceIndex(0)
+5 >Emitted(33, 27) Source(18, 23) + SourceIndex(0)
+6 >Emitted(33, 34) Source(18, 30) + SourceIndex(0)
+7 >Emitted(33, 35) Source(18, 31) + SourceIndex(0)
+8 >Emitted(33, 50) Source(18, 46) + SourceIndex(0)
+9 >Emitted(33, 51) Source(18, 47) + SourceIndex(0)
+10>Emitted(33, 52) Source(18, 48) + SourceIndex(0)
 ---
 >>>        var str = greeter.greet();
 1 >^^^^^^^^
@@ -392,15 +407,15 @@ sourceFile:sourceMapValidationClasses.ts
 7 >                          greet
 8 >                               ()
 9 >                                 ;
-1 >Emitted(19, 9) Source(19, 5) + SourceIndex(0)
-2 >Emitted(19, 13) Source(19, 9) + SourceIndex(0)
-3 >Emitted(19, 16) Source(19, 12) + SourceIndex(0)
-4 >Emitted(19, 19) Source(19, 15) + SourceIndex(0)
-5 >Emitted(19, 26) Source(19, 22) + SourceIndex(0)
-6 >Emitted(19, 27) Source(19, 23) + SourceIndex(0)
-7 >Emitted(19, 32) Source(19, 28) + SourceIndex(0)
-8 >Emitted(19, 34) Source(19, 30) + SourceIndex(0)
-9 >Emitted(19, 35) Source(19, 31) + SourceIndex(0)
+1 >Emitted(34, 9) Source(19, 5) + SourceIndex(0)
+2 >Emitted(34, 13) Source(19, 9) + SourceIndex(0)
+3 >Emitted(34, 16) Source(19, 12) + SourceIndex(0)
+4 >Emitted(34, 19) Source(19, 15) + SourceIndex(0)
+5 >Emitted(34, 26) Source(19, 22) + SourceIndex(0)
+6 >Emitted(34, 27) Source(19, 23) + SourceIndex(0)
+7 >Emitted(34, 32) Source(19, 28) + SourceIndex(0)
+8 >Emitted(34, 34) Source(19, 30) + SourceIndex(0)
+9 >Emitted(34, 35) Source(19, 31) + SourceIndex(0)
 ---
 >>>        function foo2(greeting) {
 1 >^^^^^^^^
@@ -412,9 +427,9 @@ sourceFile:sourceMapValidationClasses.ts
   >    
 2 >        function foo2(
 3 >                      greeting: string
-1 >Emitted(20, 9) Source(21, 5) + SourceIndex(0)
-2 >Emitted(20, 23) Source(21, 19) + SourceIndex(0)
-3 >Emitted(20, 31) Source(21, 35) + SourceIndex(0)
+1 >Emitted(35, 9) Source(21, 5) + SourceIndex(0)
+2 >Emitted(35, 23) Source(21, 19) + SourceIndex(0)
+3 >Emitted(35, 31) Source(21, 35) + SourceIndex(0)
 ---
 >>>            var restGreetings /* more greeting */ = [];
 1->^^^^^^^^^^^^
@@ -426,10 +441,10 @@ sourceFile:sourceMapValidationClasses.ts
 2 >            ...restGreetings 
 3 >                              /* more greeting */
 4 >                                                 : string[]
-1->Emitted(21, 13) Source(21, 37) + SourceIndex(0)
-2 >Emitted(21, 31) Source(21, 54) + SourceIndex(0)
-3 >Emitted(21, 50) Source(21, 73) + SourceIndex(0)
-4 >Emitted(21, 56) Source(21, 83) + SourceIndex(0)
+1->Emitted(36, 13) Source(21, 37) + SourceIndex(0)
+2 >Emitted(36, 31) Source(21, 54) + SourceIndex(0)
+3 >Emitted(36, 50) Source(21, 73) + SourceIndex(0)
+4 >Emitted(36, 56) Source(21, 83) + SourceIndex(0)
 ---
 >>>            for (var _i = 1; _i < arguments.length; _i++) {
 1->^^^^^^^^^^^^^^^^^
@@ -444,20 +459,20 @@ sourceFile:sourceMapValidationClasses.ts
 4 >                             ...restGreetings /* more greeting */: string[]
 5 >                                                  
 6 >                                                    ...restGreetings /* more greeting */: string[]
-1->Emitted(22, 18) Source(21, 37) + SourceIndex(0)
-2 >Emitted(22, 28) Source(21, 83) + SourceIndex(0)
-3 >Emitted(22, 30) Source(21, 37) + SourceIndex(0)
-4 >Emitted(22, 51) Source(21, 83) + SourceIndex(0)
-5 >Emitted(22, 53) Source(21, 37) + SourceIndex(0)
-6 >Emitted(22, 57) Source(21, 83) + SourceIndex(0)
+1->Emitted(37, 18) Source(21, 37) + SourceIndex(0)
+2 >Emitted(37, 28) Source(21, 83) + SourceIndex(0)
+3 >Emitted(37, 30) Source(21, 37) + SourceIndex(0)
+4 >Emitted(37, 51) Source(21, 83) + SourceIndex(0)
+5 >Emitted(37, 53) Source(21, 37) + SourceIndex(0)
+6 >Emitted(37, 57) Source(21, 83) + SourceIndex(0)
 ---
 >>>                restGreetings[_i - 1] = arguments[_i];
 1 >^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 1 >
 2 >                ...restGreetings /* more greeting */: string[]
-1 >Emitted(23, 17) Source(21, 37) + SourceIndex(0)
-2 >Emitted(23, 55) Source(21, 83) + SourceIndex(0)
+1 >Emitted(38, 17) Source(21, 37) + SourceIndex(0)
+2 >Emitted(38, 55) Source(21, 83) + SourceIndex(0)
 ---
 >>>            }
 >>>            var greeters = []; /* inline block comment */
@@ -478,14 +493,14 @@ sourceFile:sourceMapValidationClasses.ts
 6 >                             ;
 7 >                               
 8 >                               /* inline block comment */
-1 >Emitted(25, 13) Source(22, 9) + SourceIndex(0)
-2 >Emitted(25, 17) Source(22, 13) + SourceIndex(0)
-3 >Emitted(25, 25) Source(22, 21) + SourceIndex(0)
-4 >Emitted(25, 28) Source(22, 35) + SourceIndex(0)
-5 >Emitted(25, 30) Source(22, 37) + SourceIndex(0)
-6 >Emitted(25, 31) Source(22, 38) + SourceIndex(0)
-7 >Emitted(25, 32) Source(22, 39) + SourceIndex(0)
-8 >Emitted(25, 58) Source(22, 65) + SourceIndex(0)
+1 >Emitted(40, 13) Source(22, 9) + SourceIndex(0)
+2 >Emitted(40, 17) Source(22, 13) + SourceIndex(0)
+3 >Emitted(40, 25) Source(22, 21) + SourceIndex(0)
+4 >Emitted(40, 28) Source(22, 35) + SourceIndex(0)
+5 >Emitted(40, 30) Source(22, 37) + SourceIndex(0)
+6 >Emitted(40, 31) Source(22, 38) + SourceIndex(0)
+7 >Emitted(40, 32) Source(22, 39) + SourceIndex(0)
+8 >Emitted(40, 58) Source(22, 65) + SourceIndex(0)
 ---
 >>>            greeters[0] = new Greeter(greeting);
 1 >^^^^^^^^^^^^
@@ -514,18 +529,18 @@ sourceFile:sourceMapValidationClasses.ts
 10>                                      greeting
 11>                                              )
 12>                                               ;
-1 >Emitted(26, 13) Source(23, 9) + SourceIndex(0)
-2 >Emitted(26, 21) Source(23, 17) + SourceIndex(0)
-3 >Emitted(26, 22) Source(23, 18) + SourceIndex(0)
-4 >Emitted(26, 23) Source(23, 19) + SourceIndex(0)
-5 >Emitted(26, 24) Source(23, 20) + SourceIndex(0)
-6 >Emitted(26, 27) Source(23, 23) + SourceIndex(0)
-7 >Emitted(26, 31) Source(23, 27) + SourceIndex(0)
-8 >Emitted(26, 38) Source(23, 34) + SourceIndex(0)
-9 >Emitted(26, 39) Source(23, 35) + SourceIndex(0)
-10>Emitted(26, 47) Source(23, 43) + SourceIndex(0)
-11>Emitted(26, 48) Source(23, 44) + SourceIndex(0)
-12>Emitted(26, 49) Source(23, 45) + SourceIndex(0)
+1 >Emitted(41, 13) Source(23, 9) + SourceIndex(0)
+2 >Emitted(41, 21) Source(23, 17) + SourceIndex(0)
+3 >Emitted(41, 22) Source(23, 18) + SourceIndex(0)
+4 >Emitted(41, 23) Source(23, 19) + SourceIndex(0)
+5 >Emitted(41, 24) Source(23, 20) + SourceIndex(0)
+6 >Emitted(41, 27) Source(23, 23) + SourceIndex(0)
+7 >Emitted(41, 31) Source(23, 27) + SourceIndex(0)
+8 >Emitted(41, 38) Source(23, 34) + SourceIndex(0)
+9 >Emitted(41, 39) Source(23, 35) + SourceIndex(0)
+10>Emitted(41, 47) Source(23, 43) + SourceIndex(0)
+11>Emitted(41, 48) Source(23, 44) + SourceIndex(0)
+12>Emitted(41, 49) Source(23, 45) + SourceIndex(0)
 ---
 >>>            for (var i = 0; i < restGreetings.length; i++) {
 1->^^^^^^^^^^^^
@@ -568,25 +583,25 @@ sourceFile:sourceMapValidationClasses.ts
 17>                                                       ++
 18>                                                         ) 
 19>                                                           {
-1->Emitted(27, 13) Source(24, 9) + SourceIndex(0)
-2 >Emitted(27, 16) Source(24, 12) + SourceIndex(0)
-3 >Emitted(27, 17) Source(24, 13) + SourceIndex(0)
-4 >Emitted(27, 18) Source(24, 14) + SourceIndex(0)
-5 >Emitted(27, 22) Source(24, 18) + SourceIndex(0)
-6 >Emitted(27, 23) Source(24, 19) + SourceIndex(0)
-7 >Emitted(27, 26) Source(24, 22) + SourceIndex(0)
-8 >Emitted(27, 27) Source(24, 23) + SourceIndex(0)
-9 >Emitted(27, 29) Source(24, 25) + SourceIndex(0)
-10>Emitted(27, 30) Source(24, 26) + SourceIndex(0)
-11>Emitted(27, 33) Source(24, 29) + SourceIndex(0)
-12>Emitted(27, 46) Source(24, 42) + SourceIndex(0)
-13>Emitted(27, 47) Source(24, 43) + SourceIndex(0)
-14>Emitted(27, 53) Source(24, 49) + SourceIndex(0)
-15>Emitted(27, 55) Source(24, 51) + SourceIndex(0)
-16>Emitted(27, 56) Source(24, 52) + SourceIndex(0)
-17>Emitted(27, 58) Source(24, 54) + SourceIndex(0)
-18>Emitted(27, 60) Source(24, 56) + SourceIndex(0)
-19>Emitted(27, 61) Source(24, 57) + SourceIndex(0)
+1->Emitted(42, 13) Source(24, 9) + SourceIndex(0)
+2 >Emitted(42, 16) Source(24, 12) + SourceIndex(0)
+3 >Emitted(42, 17) Source(24, 13) + SourceIndex(0)
+4 >Emitted(42, 18) Source(24, 14) + SourceIndex(0)
+5 >Emitted(42, 22) Source(24, 18) + SourceIndex(0)
+6 >Emitted(42, 23) Source(24, 19) + SourceIndex(0)
+7 >Emitted(42, 26) Source(24, 22) + SourceIndex(0)
+8 >Emitted(42, 27) Source(24, 23) + SourceIndex(0)
+9 >Emitted(42, 29) Source(24, 25) + SourceIndex(0)
+10>Emitted(42, 30) Source(24, 26) + SourceIndex(0)
+11>Emitted(42, 33) Source(24, 29) + SourceIndex(0)
+12>Emitted(42, 46) Source(24, 42) + SourceIndex(0)
+13>Emitted(42, 47) Source(24, 43) + SourceIndex(0)
+14>Emitted(42, 53) Source(24, 49) + SourceIndex(0)
+15>Emitted(42, 55) Source(24, 51) + SourceIndex(0)
+16>Emitted(42, 56) Source(24, 52) + SourceIndex(0)
+17>Emitted(42, 58) Source(24, 54) + SourceIndex(0)
+18>Emitted(42, 60) Source(24, 56) + SourceIndex(0)
+19>Emitted(42, 61) Source(24, 57) + SourceIndex(0)
 ---
 >>>                greeters.push(new Greeter(restGreetings[i]));
 1->^^^^^^^^^^^^^^^^
@@ -620,21 +635,21 @@ sourceFile:sourceMapValidationClasses.ts
 13>                                                          )
 14>                                                           )
 15>                                                            ;
-1->Emitted(28, 17) Source(25, 13) + SourceIndex(0)
-2 >Emitted(28, 25) Source(25, 21) + SourceIndex(0)
-3 >Emitted(28, 26) Source(25, 22) + SourceIndex(0)
-4 >Emitted(28, 30) Source(25, 26) + SourceIndex(0)
-5 >Emitted(28, 31) Source(25, 27) + SourceIndex(0)
-6 >Emitted(28, 35) Source(25, 31) + SourceIndex(0)
-7 >Emitted(28, 42) Source(25, 38) + SourceIndex(0)
-8 >Emitted(28, 43) Source(25, 39) + SourceIndex(0)
-9 >Emitted(28, 56) Source(25, 52) + SourceIndex(0)
-10>Emitted(28, 57) Source(25, 53) + SourceIndex(0)
-11>Emitted(28, 58) Source(25, 54) + SourceIndex(0)
-12>Emitted(28, 59) Source(25, 55) + SourceIndex(0)
-13>Emitted(28, 60) Source(25, 56) + SourceIndex(0)
-14>Emitted(28, 61) Source(25, 57) + SourceIndex(0)
-15>Emitted(28, 62) Source(25, 58) + SourceIndex(0)
+1->Emitted(43, 17) Source(25, 13) + SourceIndex(0)
+2 >Emitted(43, 25) Source(25, 21) + SourceIndex(0)
+3 >Emitted(43, 26) Source(25, 22) + SourceIndex(0)
+4 >Emitted(43, 30) Source(25, 26) + SourceIndex(0)
+5 >Emitted(43, 31) Source(25, 27) + SourceIndex(0)
+6 >Emitted(43, 35) Source(25, 31) + SourceIndex(0)
+7 >Emitted(43, 42) Source(25, 38) + SourceIndex(0)
+8 >Emitted(43, 43) Source(25, 39) + SourceIndex(0)
+9 >Emitted(43, 56) Source(25, 52) + SourceIndex(0)
+10>Emitted(43, 57) Source(25, 53) + SourceIndex(0)
+11>Emitted(43, 58) Source(25, 54) + SourceIndex(0)
+12>Emitted(43, 59) Source(25, 55) + SourceIndex(0)
+13>Emitted(43, 60) Source(25, 56) + SourceIndex(0)
+14>Emitted(43, 61) Source(25, 57) + SourceIndex(0)
+15>Emitted(43, 62) Source(25, 58) + SourceIndex(0)
 ---
 >>>            }
 1 >^^^^^^^^^^^^
@@ -643,8 +658,8 @@ sourceFile:sourceMapValidationClasses.ts
 1 >
   >        
 2 >            }
-1 >Emitted(29, 13) Source(26, 9) + SourceIndex(0)
-2 >Emitted(29, 14) Source(26, 10) + SourceIndex(0)
+1 >Emitted(44, 13) Source(26, 9) + SourceIndex(0)
+2 >Emitted(44, 14) Source(26, 10) + SourceIndex(0)
 ---
 >>>            return greeters;
 1->^^^^^^^^^^^^
@@ -659,11 +674,11 @@ sourceFile:sourceMapValidationClasses.ts
 3 >                   
 4 >                   greeters
 5 >                           ;
-1->Emitted(30, 13) Source(28, 9) + SourceIndex(0)
-2 >Emitted(30, 19) Source(28, 15) + SourceIndex(0)
-3 >Emitted(30, 20) Source(28, 16) + SourceIndex(0)
-4 >Emitted(30, 28) Source(28, 24) + SourceIndex(0)
-5 >Emitted(30, 29) Source(28, 25) + SourceIndex(0)
+1->Emitted(45, 13) Source(28, 9) + SourceIndex(0)
+2 >Emitted(45, 19) Source(28, 15) + SourceIndex(0)
+3 >Emitted(45, 20) Source(28, 16) + SourceIndex(0)
+4 >Emitted(45, 28) Source(28, 24) + SourceIndex(0)
+5 >Emitted(45, 29) Source(28, 25) + SourceIndex(0)
 ---
 >>>        }
 1 >^^^^^^^^
@@ -672,8 +687,8 @@ sourceFile:sourceMapValidationClasses.ts
 1 >
   >    
 2 >        }
-1 >Emitted(31, 9) Source(29, 5) + SourceIndex(0)
-2 >Emitted(31, 10) Source(29, 6) + SourceIndex(0)
+1 >Emitted(46, 9) Source(29, 5) + SourceIndex(0)
+2 >Emitted(46, 10) Source(29, 6) + SourceIndex(0)
 ---
 >>>        var b = foo2("Hello", "World", "!");
 1->^^^^^^^^
@@ -705,19 +720,19 @@ sourceFile:sourceMapValidationClasses.ts
 11>                                       "!"
 12>                                          )
 13>                                           ;
-1->Emitted(32, 9) Source(31, 5) + SourceIndex(0)
-2 >Emitted(32, 13) Source(31, 9) + SourceIndex(0)
-3 >Emitted(32, 14) Source(31, 10) + SourceIndex(0)
-4 >Emitted(32, 17) Source(31, 13) + SourceIndex(0)
-5 >Emitted(32, 21) Source(31, 17) + SourceIndex(0)
-6 >Emitted(32, 22) Source(31, 18) + SourceIndex(0)
-7 >Emitted(32, 29) Source(31, 25) + SourceIndex(0)
-8 >Emitted(32, 31) Source(31, 27) + SourceIndex(0)
-9 >Emitted(32, 38) Source(31, 34) + SourceIndex(0)
-10>Emitted(32, 40) Source(31, 36) + SourceIndex(0)
-11>Emitted(32, 43) Source(31, 39) + SourceIndex(0)
-12>Emitted(32, 44) Source(31, 40) + SourceIndex(0)
-13>Emitted(32, 45) Source(31, 41) + SourceIndex(0)
+1->Emitted(47, 9) Source(31, 5) + SourceIndex(0)
+2 >Emitted(47, 13) Source(31, 9) + SourceIndex(0)
+3 >Emitted(47, 14) Source(31, 10) + SourceIndex(0)
+4 >Emitted(47, 17) Source(31, 13) + SourceIndex(0)
+5 >Emitted(47, 21) Source(31, 17) + SourceIndex(0)
+6 >Emitted(47, 22) Source(31, 18) + SourceIndex(0)
+7 >Emitted(47, 29) Source(31, 25) + SourceIndex(0)
+8 >Emitted(47, 31) Source(31, 27) + SourceIndex(0)
+9 >Emitted(47, 38) Source(31, 34) + SourceIndex(0)
+10>Emitted(47, 40) Source(31, 36) + SourceIndex(0)
+11>Emitted(47, 43) Source(31, 39) + SourceIndex(0)
+12>Emitted(47, 44) Source(31, 40) + SourceIndex(0)
+13>Emitted(47, 45) Source(31, 41) + SourceIndex(0)
 ---
 >>>        // This is simple signle line comment
 1->^^^^^^^^
@@ -725,8 +740,8 @@ sourceFile:sourceMapValidationClasses.ts
 1->
   >    
 2 >        // This is simple signle line comment
-1->Emitted(33, 9) Source(32, 5) + SourceIndex(0)
-2 >Emitted(33, 46) Source(32, 42) + SourceIndex(0)
+1->Emitted(48, 9) Source(32, 5) + SourceIndex(0)
+2 >Emitted(48, 46) Source(32, 42) + SourceIndex(0)
 ---
 >>>        for (var j = 0; j < b.length; j++) {
 1 >^^^^^^^^
@@ -768,25 +783,25 @@ sourceFile:sourceMapValidationClasses.ts
 17>                                       ++
 18>                                         ) 
 19>                                           {
-1 >Emitted(34, 9) Source(33, 5) + SourceIndex(0)
-2 >Emitted(34, 12) Source(33, 8) + SourceIndex(0)
-3 >Emitted(34, 13) Source(33, 9) + SourceIndex(0)
-4 >Emitted(34, 14) Source(33, 10) + SourceIndex(0)
-5 >Emitted(34, 18) Source(33, 14) + SourceIndex(0)
-6 >Emitted(34, 19) Source(33, 15) + SourceIndex(0)
-7 >Emitted(34, 22) Source(33, 18) + SourceIndex(0)
-8 >Emitted(34, 23) Source(33, 19) + SourceIndex(0)
-9 >Emitted(34, 25) Source(33, 21) + SourceIndex(0)
-10>Emitted(34, 26) Source(33, 22) + SourceIndex(0)
-11>Emitted(34, 29) Source(33, 25) + SourceIndex(0)
-12>Emitted(34, 30) Source(33, 26) + SourceIndex(0)
-13>Emitted(34, 31) Source(33, 27) + SourceIndex(0)
-14>Emitted(34, 37) Source(33, 33) + SourceIndex(0)
-15>Emitted(34, 39) Source(33, 35) + SourceIndex(0)
-16>Emitted(34, 40) Source(33, 36) + SourceIndex(0)
-17>Emitted(34, 42) Source(33, 38) + SourceIndex(0)
-18>Emitted(34, 44) Source(33, 40) + SourceIndex(0)
-19>Emitted(34, 45) Source(33, 41) + SourceIndex(0)
+1 >Emitted(49, 9) Source(33, 5) + SourceIndex(0)
+2 >Emitted(49, 12) Source(33, 8) + SourceIndex(0)
+3 >Emitted(49, 13) Source(33, 9) + SourceIndex(0)
+4 >Emitted(49, 14) Source(33, 10) + SourceIndex(0)
+5 >Emitted(49, 18) Source(33, 14) + SourceIndex(0)
+6 >Emitted(49, 19) Source(33, 15) + SourceIndex(0)
+7 >Emitted(49, 22) Source(33, 18) + SourceIndex(0)
+8 >Emitted(49, 23) Source(33, 19) + SourceIndex(0)
+9 >Emitted(49, 25) Source(33, 21) + SourceIndex(0)
+10>Emitted(49, 26) Source(33, 22) + SourceIndex(0)
+11>Emitted(49, 29) Source(33, 25) + SourceIndex(0)
+12>Emitted(49, 30) Source(33, 26) + SourceIndex(0)
+13>Emitted(49, 31) Source(33, 27) + SourceIndex(0)
+14>Emitted(49, 37) Source(33, 33) + SourceIndex(0)
+15>Emitted(49, 39) Source(33, 35) + SourceIndex(0)
+16>Emitted(49, 40) Source(33, 36) + SourceIndex(0)
+17>Emitted(49, 42) Source(33, 38) + SourceIndex(0)
+18>Emitted(49, 44) Source(33, 40) + SourceIndex(0)
+19>Emitted(49, 45) Source(33, 41) + SourceIndex(0)
 ---
 >>>            b[j].greet();
 1 >^^^^^^^^^^^^
@@ -808,15 +823,15 @@ sourceFile:sourceMapValidationClasses.ts
 7 >                 greet
 8 >                      ()
 9 >                        ;
-1 >Emitted(35, 13) Source(34, 9) + SourceIndex(0)
-2 >Emitted(35, 14) Source(34, 10) + SourceIndex(0)
-3 >Emitted(35, 15) Source(34, 11) + SourceIndex(0)
-4 >Emitted(35, 16) Source(34, 12) + SourceIndex(0)
-5 >Emitted(35, 17) Source(34, 13) + SourceIndex(0)
-6 >Emitted(35, 18) Source(34, 14) + SourceIndex(0)
-7 >Emitted(35, 23) Source(34, 19) + SourceIndex(0)
-8 >Emitted(35, 25) Source(34, 21) + SourceIndex(0)
-9 >Emitted(35, 26) Source(34, 22) + SourceIndex(0)
+1 >Emitted(50, 13) Source(34, 9) + SourceIndex(0)
+2 >Emitted(50, 14) Source(34, 10) + SourceIndex(0)
+3 >Emitted(50, 15) Source(34, 11) + SourceIndex(0)
+4 >Emitted(50, 16) Source(34, 12) + SourceIndex(0)
+5 >Emitted(50, 17) Source(34, 13) + SourceIndex(0)
+6 >Emitted(50, 18) Source(34, 14) + SourceIndex(0)
+7 >Emitted(50, 23) Source(34, 19) + SourceIndex(0)
+8 >Emitted(50, 25) Source(34, 21) + SourceIndex(0)
+9 >Emitted(50, 26) Source(34, 22) + SourceIndex(0)
 ---
 >>>        }
 1 >^^^^^^^^
@@ -825,8 +840,8 @@ sourceFile:sourceMapValidationClasses.ts
 1 >
   >    
 2 >        }
-1 >Emitted(36, 9) Source(35, 5) + SourceIndex(0)
-2 >Emitted(36, 10) Source(35, 6) + SourceIndex(0)
+1 >Emitted(51, 9) Source(35, 5) + SourceIndex(0)
+2 >Emitted(51, 10) Source(35, 6) + SourceIndex(0)
 ---
 >>>    })(Bar = Foo.Bar || (Foo.Bar = {}));
 1->^^^^
@@ -883,15 +898,15 @@ sourceFile:sourceMapValidationClasses.ts
   >                                        b[j].greet();
   >                                    }
   >                                }
-1->Emitted(37, 5) Source(36, 1) + SourceIndex(0)
-2 >Emitted(37, 6) Source(36, 2) + SourceIndex(0)
-3 >Emitted(37, 8) Source(1, 12) + SourceIndex(0)
-4 >Emitted(37, 11) Source(1, 15) + SourceIndex(0)
-5 >Emitted(37, 14) Source(1, 12) + SourceIndex(0)
-6 >Emitted(37, 21) Source(1, 15) + SourceIndex(0)
-7 >Emitted(37, 26) Source(1, 12) + SourceIndex(0)
-8 >Emitted(37, 33) Source(1, 15) + SourceIndex(0)
-9 >Emitted(37, 41) Source(36, 2) + SourceIndex(0)
+1->Emitted(52, 5) Source(36, 1) + SourceIndex(0)
+2 >Emitted(52, 6) Source(36, 2) + SourceIndex(0)
+3 >Emitted(52, 8) Source(1, 12) + SourceIndex(0)
+4 >Emitted(52, 11) Source(1, 15) + SourceIndex(0)
+5 >Emitted(52, 14) Source(1, 12) + SourceIndex(0)
+6 >Emitted(52, 21) Source(1, 15) + SourceIndex(0)
+7 >Emitted(52, 26) Source(1, 12) + SourceIndex(0)
+8 >Emitted(52, 33) Source(1, 15) + SourceIndex(0)
+9 >Emitted(52, 41) Source(36, 2) + SourceIndex(0)
 ---
 >>>})(Foo || (Foo = {}));
 1 >
@@ -944,12 +959,12 @@ sourceFile:sourceMapValidationClasses.ts
   >                      b[j].greet();
   >                  }
   >              }
-1 >Emitted(38, 1) Source(36, 1) + SourceIndex(0)
-2 >Emitted(38, 2) Source(36, 2) + SourceIndex(0)
-3 >Emitted(38, 4) Source(1, 8) + SourceIndex(0)
-4 >Emitted(38, 7) Source(1, 11) + SourceIndex(0)
-5 >Emitted(38, 12) Source(1, 8) + SourceIndex(0)
-6 >Emitted(38, 15) Source(1, 11) + SourceIndex(0)
-7 >Emitted(38, 23) Source(36, 2) + SourceIndex(0)
+1 >Emitted(53, 1) Source(36, 1) + SourceIndex(0)
+2 >Emitted(53, 2) Source(36, 2) + SourceIndex(0)
+3 >Emitted(53, 4) Source(1, 8) + SourceIndex(0)
+4 >Emitted(53, 7) Source(1, 11) + SourceIndex(0)
+5 >Emitted(53, 12) Source(1, 8) + SourceIndex(0)
+6 >Emitted(53, 15) Source(1, 11) + SourceIndex(0)
+7 >Emitted(53, 23) Source(36, 2) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=sourceMapValidationClasses.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapValidationDecorators.js b/tests/baselines/reference/sourceMapValidationDecorators.js
index c3bb5cd722526..b476d7a70fd14 100644
--- a/tests/baselines/reference/sourceMapValidationDecorators.js
+++ b/tests/baselines/reference/sourceMapValidationDecorators.js
@@ -55,6 +55,20 @@ class Greeter {
 }
 
 //// [sourceMapValidationDecorators.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
     var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
     if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -88,6 +102,7 @@ var Greeter = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(Greeter.prototype, ["greet", "fn"]);
     Greeter.x1 = 10;
     __decorate([
         PropertyDecorator1,
diff --git a/tests/baselines/reference/sourceMapValidationDecorators.js.map b/tests/baselines/reference/sourceMapValidationDecorators.js.map
index c5666dc31474f..0d365dc68d6f1 100644
--- a/tests/baselines/reference/sourceMapValidationDecorators.js.map
+++ b/tests/baselines/reference/sourceMapValidationDecorators.js.map
@@ -1,2 +1,2 @@
 //// [sourceMapValidationDecorators.js.map]
-{"version":3,"file":"sourceMapValidationDecorators.js","sourceRoot":"","sources":["sourceMapValidationDecorators.ts"],"names":[],"mappings":";;;;;;;;;AASA;IACI,iBAGS,QAAgB;QAIvB,WAAc;aAAd,UAAc,EAAd,qBAAc,EAAd,IAAc;YAAd,0BAAc;;QAJP,aAAQ,GAAR,QAAQ,CAAQ;IAKzB,CAAC;IAID,uBAAK,GAAL;QACI,MAAM,CAAC,MAAM,GAAG,IAAI,CAAC,QAAQ,GAAG,OAAO,CAAC;IAC5C,CAAC;IAUO,oBAAE,GAAV,UAGE,CAAS;QACP,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC;IACzB,CAAC;IAID,sBAAI,8BAAS;aAAb;YACI,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC;QACzB,CAAC;aAED,UAGE,SAAiB;YACf,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;QAC9B,CAAC;;;OAPA;IAbc,UAAE,GAAW,EAAE,CAAC;IAV/B;QAFC,kBAAkB;QAClB,kBAAkB,CAAC,EAAE,CAAC;wCAGtB;IAID;QAFC,kBAAkB;QAClB,kBAAkB,CAAC,EAAE,CAAC;sCACL;IAMlB;QACG,WAAA,mBAAmB,CAAA;QACnB,WAAA,mBAAmB,CAAC,EAAE,CAAC,CAAA;qCAGzB;IAID;QAFC,kBAAkB;QAClB,kBAAkB,CAAC,EAAE,CAAC;QAMpB,WAAA,mBAAmB,CAAA;QACnB,WAAA,mBAAmB,CAAC,EAAE,CAAC,CAAA;4CAJzB;IAbD;QAFC,kBAAkB;QAClB,kBAAkB,CAAC,EAAE,CAAC;6BACQ;IAvB7B,OAAO;QAFZ,eAAe;QACf,eAAe,CAAC,EAAE,CAAC;QAGb,WAAA,mBAAmB,CAAA;QACnB,WAAA,mBAAmB,CAAC,EAAE,CAAC,CAAA;QAGvB,WAAA,mBAAmB,CAAA;QACnB,WAAA,mBAAmB,CAAC,EAAE,CAAC,CAAA;OAPxB,OAAO,CA4CZ;IAAD,cAAC;CAAA,AA5CD,IA4CC"}
\ No newline at end of file
+{"version":3,"file":"sourceMapValidationDecorators.js","sourceRoot":"","sources":["sourceMapValidationDecorators.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;AASA;IACI,iBAGS,QAAgB;QAIvB,WAAc;aAAd,UAAc,EAAd,qBAAc,EAAd,IAAc;YAAd,0BAAc;;QAJP,aAAQ,GAAR,QAAQ,CAAQ;IAKzB,CAAC;IAID,uBAAK,GAAL;QACI,MAAM,CAAC,MAAM,GAAG,IAAI,CAAC,QAAQ,GAAG,OAAO,CAAC;IAC5C,CAAC;IAUO,oBAAE,GAAV,UAGE,CAAS;QACP,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC;IACzB,CAAC;IAID,sBAAI,8BAAS;aAAb;YACI,MAAM,CAAC,IAAI,CAAC,QAAQ,CAAC;QACzB,CAAC;aAED,UAGE,SAAiB;YACf,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;QAC9B,CAAC;;;OAPA;;IAbc,UAAE,GAAW,EAAE,CAAC;IAV/B;QAFC,kBAAkB;QAClB,kBAAkB,CAAC,EAAE,CAAC;wCAGtB;IAID;QAFC,kBAAkB;QAClB,kBAAkB,CAAC,EAAE,CAAC;sCACL;IAMlB;QACG,WAAA,mBAAmB,CAAA;QACnB,WAAA,mBAAmB,CAAC,EAAE,CAAC,CAAA;qCAGzB;IAID;QAFC,kBAAkB;QAClB,kBAAkB,CAAC,EAAE,CAAC;QAMpB,WAAA,mBAAmB,CAAA;QACnB,WAAA,mBAAmB,CAAC,EAAE,CAAC,CAAA;4CAJzB;IAbD;QAFC,kBAAkB;QAClB,kBAAkB,CAAC,EAAE,CAAC;6BACQ;IAvB7B,OAAO;QAFZ,eAAe;QACf,eAAe,CAAC,EAAE,CAAC;QAGb,WAAA,mBAAmB,CAAA;QACnB,WAAA,mBAAmB,CAAC,EAAE,CAAC,CAAA;QAGvB,WAAA,mBAAmB,CAAA;QACnB,WAAA,mBAAmB,CAAC,EAAE,CAAC,CAAA;OAPxB,OAAO,CA4CZ;IAAD,cAAC;CAAA,AA5CD,IA4CC"}
\ No newline at end of file
diff --git a/tests/baselines/reference/sourceMapValidationDecorators.sourcemap.txt b/tests/baselines/reference/sourceMapValidationDecorators.sourcemap.txt
index 2cec971546b15..f1d8268322813 100644
--- a/tests/baselines/reference/sourceMapValidationDecorators.sourcemap.txt
+++ b/tests/baselines/reference/sourceMapValidationDecorators.sourcemap.txt
@@ -8,6 +8,20 @@ sources: sourceMapValidationDecorators.ts
 emittedFile:tests/cases/compiler/sourceMapValidationDecorators.js
 sourceFile:sourceMapValidationDecorators.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
 >>>    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
 >>>    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
@@ -30,7 +44,7 @@ sourceFile:sourceMapValidationDecorators.ts
   >@ClassDecorator1
   >@ClassDecorator2(10)
   >
-1 >Emitted(10, 1) Source(10, 1) + SourceIndex(0)
+1 >Emitted(24, 1) Source(10, 1) + SourceIndex(0)
 ---
 >>>    function Greeter(greeting) {
 1->^^^^
@@ -43,9 +57,9 @@ sourceFile:sourceMapValidationDecorators.ts
   >          @ParameterDecorator2(20) 
   >          public 
 3 >                     greeting: string
-1->Emitted(11, 5) Source(11, 5) + SourceIndex(0)
-2 >Emitted(11, 22) Source(14, 14) + SourceIndex(0)
-3 >Emitted(11, 30) Source(14, 30) + SourceIndex(0)
+1->Emitted(25, 5) Source(11, 5) + SourceIndex(0)
+2 >Emitted(25, 22) Source(14, 14) + SourceIndex(0)
+3 >Emitted(25, 30) Source(14, 30) + SourceIndex(0)
 ---
 >>>        var b = [];
 1 >^^^^^^^^
@@ -57,8 +71,8 @@ sourceFile:sourceMapValidationDecorators.ts
   >      @ParameterDecorator2(30) 
   >      
 2 >        ...b: string[]
-1 >Emitted(12, 9) Source(18, 7) + SourceIndex(0)
-2 >Emitted(12, 20) Source(18, 21) + SourceIndex(0)
+1 >Emitted(26, 9) Source(18, 7) + SourceIndex(0)
+2 >Emitted(26, 20) Source(18, 21) + SourceIndex(0)
 ---
 >>>        for (var _i = 1; _i < arguments.length; _i++) {
 1->^^^^^^^^^^^^^
@@ -73,20 +87,20 @@ sourceFile:sourceMapValidationDecorators.ts
 4 >                         ...b: string[]
 5 >                                              
 6 >                                                ...b: string[]
-1->Emitted(13, 14) Source(18, 7) + SourceIndex(0)
-2 >Emitted(13, 24) Source(18, 21) + SourceIndex(0)
-3 >Emitted(13, 26) Source(18, 7) + SourceIndex(0)
-4 >Emitted(13, 47) Source(18, 21) + SourceIndex(0)
-5 >Emitted(13, 49) Source(18, 7) + SourceIndex(0)
-6 >Emitted(13, 53) Source(18, 21) + SourceIndex(0)
+1->Emitted(27, 14) Source(18, 7) + SourceIndex(0)
+2 >Emitted(27, 24) Source(18, 21) + SourceIndex(0)
+3 >Emitted(27, 26) Source(18, 7) + SourceIndex(0)
+4 >Emitted(27, 47) Source(18, 21) + SourceIndex(0)
+5 >Emitted(27, 49) Source(18, 7) + SourceIndex(0)
+6 >Emitted(27, 53) Source(18, 21) + SourceIndex(0)
 ---
 >>>            b[_i - 1] = arguments[_i];
 1 >^^^^^^^^^^^^
 2 >            ^^^^^^^^^^^^^^^^^^^^^^^^^^
 1 >
 2 >            ...b: string[]
-1 >Emitted(14, 13) Source(18, 7) + SourceIndex(0)
-2 >Emitted(14, 39) Source(18, 21) + SourceIndex(0)
+1 >Emitted(28, 13) Source(18, 7) + SourceIndex(0)
+2 >Emitted(28, 39) Source(18, 21) + SourceIndex(0)
 ---
 >>>        }
 >>>        this.greeting = greeting;
@@ -100,11 +114,11 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >                     
 4 >                        greeting
 5 >                                : string
-1 >Emitted(16, 9) Source(14, 14) + SourceIndex(0)
-2 >Emitted(16, 22) Source(14, 22) + SourceIndex(0)
-3 >Emitted(16, 25) Source(14, 14) + SourceIndex(0)
-4 >Emitted(16, 33) Source(14, 22) + SourceIndex(0)
-5 >Emitted(16, 34) Source(14, 30) + SourceIndex(0)
+1 >Emitted(30, 9) Source(14, 14) + SourceIndex(0)
+2 >Emitted(30, 22) Source(14, 22) + SourceIndex(0)
+3 >Emitted(30, 25) Source(14, 14) + SourceIndex(0)
+4 >Emitted(30, 33) Source(14, 22) + SourceIndex(0)
+5 >Emitted(30, 34) Source(14, 30) + SourceIndex(0)
 ---
 >>>    }
 1 >^^^^
@@ -117,8 +131,8 @@ sourceFile:sourceMapValidationDecorators.ts
   >      ...b: string[]) {
   >    
 2 >    }
-1 >Emitted(17, 5) Source(19, 5) + SourceIndex(0)
-2 >Emitted(17, 6) Source(19, 6) + SourceIndex(0)
+1 >Emitted(31, 5) Source(19, 5) + SourceIndex(0)
+2 >Emitted(31, 6) Source(19, 6) + SourceIndex(0)
 ---
 >>>    Greeter.prototype.greet = function () {
 1->^^^^
@@ -132,9 +146,9 @@ sourceFile:sourceMapValidationDecorators.ts
   >    
 2 >    greet
 3 >                           
-1->Emitted(18, 5) Source(23, 5) + SourceIndex(0)
-2 >Emitted(18, 28) Source(23, 10) + SourceIndex(0)
-3 >Emitted(18, 31) Source(23, 5) + SourceIndex(0)
+1->Emitted(32, 5) Source(23, 5) + SourceIndex(0)
+2 >Emitted(32, 28) Source(23, 10) + SourceIndex(0)
+3 >Emitted(32, 31) Source(23, 5) + SourceIndex(0)
 ---
 >>>        return "<h1>" + this.greeting + "</h1>";
 1->^^^^^^^^
@@ -160,17 +174,17 @@ sourceFile:sourceMapValidationDecorators.ts
 9 >                                      + 
 10>                                        "</h1>"
 11>                                               ;
-1->Emitted(19, 9) Source(24, 9) + SourceIndex(0)
-2 >Emitted(19, 15) Source(24, 15) + SourceIndex(0)
-3 >Emitted(19, 16) Source(24, 16) + SourceIndex(0)
-4 >Emitted(19, 22) Source(24, 22) + SourceIndex(0)
-5 >Emitted(19, 25) Source(24, 25) + SourceIndex(0)
-6 >Emitted(19, 29) Source(24, 29) + SourceIndex(0)
-7 >Emitted(19, 30) Source(24, 30) + SourceIndex(0)
-8 >Emitted(19, 38) Source(24, 38) + SourceIndex(0)
-9 >Emitted(19, 41) Source(24, 41) + SourceIndex(0)
-10>Emitted(19, 48) Source(24, 48) + SourceIndex(0)
-11>Emitted(19, 49) Source(24, 49) + SourceIndex(0)
+1->Emitted(33, 9) Source(24, 9) + SourceIndex(0)
+2 >Emitted(33, 15) Source(24, 15) + SourceIndex(0)
+3 >Emitted(33, 16) Source(24, 16) + SourceIndex(0)
+4 >Emitted(33, 22) Source(24, 22) + SourceIndex(0)
+5 >Emitted(33, 25) Source(24, 25) + SourceIndex(0)
+6 >Emitted(33, 29) Source(24, 29) + SourceIndex(0)
+7 >Emitted(33, 30) Source(24, 30) + SourceIndex(0)
+8 >Emitted(33, 38) Source(24, 38) + SourceIndex(0)
+9 >Emitted(33, 41) Source(24, 41) + SourceIndex(0)
+10>Emitted(33, 48) Source(24, 48) + SourceIndex(0)
+11>Emitted(33, 49) Source(24, 49) + SourceIndex(0)
 ---
 >>>    };
 1 >^^^^
@@ -179,8 +193,8 @@ sourceFile:sourceMapValidationDecorators.ts
 1 >
   >    
 2 >    }
-1 >Emitted(20, 5) Source(25, 5) + SourceIndex(0)
-2 >Emitted(20, 6) Source(25, 6) + SourceIndex(0)
+1 >Emitted(34, 5) Source(25, 5) + SourceIndex(0)
+2 >Emitted(34, 6) Source(25, 6) + SourceIndex(0)
 ---
 >>>    Greeter.prototype.fn = function (x) {
 1->^^^^
@@ -206,11 +220,11 @@ sourceFile:sourceMapValidationDecorators.ts
   >                                 @ParameterDecorator2(70) 
   >                                 
 5 >                                     x: number
-1->Emitted(21, 5) Source(35, 13) + SourceIndex(0)
-2 >Emitted(21, 25) Source(35, 15) + SourceIndex(0)
-3 >Emitted(21, 28) Source(35, 5) + SourceIndex(0)
-4 >Emitted(21, 38) Source(38, 7) + SourceIndex(0)
-5 >Emitted(21, 39) Source(38, 16) + SourceIndex(0)
+1->Emitted(35, 5) Source(35, 13) + SourceIndex(0)
+2 >Emitted(35, 25) Source(35, 15) + SourceIndex(0)
+3 >Emitted(35, 28) Source(35, 5) + SourceIndex(0)
+4 >Emitted(35, 38) Source(38, 7) + SourceIndex(0)
+5 >Emitted(35, 39) Source(38, 16) + SourceIndex(0)
 ---
 >>>        return this.greeting;
 1 >^^^^^^^^
@@ -228,13 +242,13 @@ sourceFile:sourceMapValidationDecorators.ts
 5 >                   .
 6 >                    greeting
 7 >                            ;
-1 >Emitted(22, 9) Source(39, 9) + SourceIndex(0)
-2 >Emitted(22, 15) Source(39, 15) + SourceIndex(0)
-3 >Emitted(22, 16) Source(39, 16) + SourceIndex(0)
-4 >Emitted(22, 20) Source(39, 20) + SourceIndex(0)
-5 >Emitted(22, 21) Source(39, 21) + SourceIndex(0)
-6 >Emitted(22, 29) Source(39, 29) + SourceIndex(0)
-7 >Emitted(22, 30) Source(39, 30) + SourceIndex(0)
+1 >Emitted(36, 9) Source(39, 9) + SourceIndex(0)
+2 >Emitted(36, 15) Source(39, 15) + SourceIndex(0)
+3 >Emitted(36, 16) Source(39, 16) + SourceIndex(0)
+4 >Emitted(36, 20) Source(39, 20) + SourceIndex(0)
+5 >Emitted(36, 21) Source(39, 21) + SourceIndex(0)
+6 >Emitted(36, 29) Source(39, 29) + SourceIndex(0)
+7 >Emitted(36, 30) Source(39, 30) + SourceIndex(0)
 ---
 >>>    };
 1 >^^^^
@@ -243,8 +257,8 @@ sourceFile:sourceMapValidationDecorators.ts
 1 >
   >    
 2 >    }
-1 >Emitted(23, 5) Source(40, 5) + SourceIndex(0)
-2 >Emitted(23, 6) Source(40, 6) + SourceIndex(0)
+1 >Emitted(37, 5) Source(40, 5) + SourceIndex(0)
+2 >Emitted(37, 6) Source(40, 6) + SourceIndex(0)
 ---
 >>>    Object.defineProperty(Greeter.prototype, "greetings", {
 1->^^^^
@@ -257,15 +271,15 @@ sourceFile:sourceMapValidationDecorators.ts
   >    
 2 >    get 
 3 >                          greetings
-1->Emitted(24, 5) Source(44, 5) + SourceIndex(0)
-2 >Emitted(24, 27) Source(44, 9) + SourceIndex(0)
-3 >Emitted(24, 57) Source(44, 18) + SourceIndex(0)
+1->Emitted(38, 5) Source(44, 5) + SourceIndex(0)
+2 >Emitted(38, 27) Source(44, 9) + SourceIndex(0)
+3 >Emitted(38, 57) Source(44, 18) + SourceIndex(0)
 ---
 >>>        get: function () {
 1 >^^^^^^^^^^^^^
 2 >             ^^^^^^^^^^^^^^^^^^^^^->
 1 >
-1 >Emitted(25, 14) Source(44, 5) + SourceIndex(0)
+1 >Emitted(39, 14) Source(44, 5) + SourceIndex(0)
 ---
 >>>            return this.greeting;
 1->^^^^^^^^^^^^
@@ -283,13 +297,13 @@ sourceFile:sourceMapValidationDecorators.ts
 5 >                       .
 6 >                        greeting
 7 >                                ;
-1->Emitted(26, 13) Source(45, 9) + SourceIndex(0)
-2 >Emitted(26, 19) Source(45, 15) + SourceIndex(0)
-3 >Emitted(26, 20) Source(45, 16) + SourceIndex(0)
-4 >Emitted(26, 24) Source(45, 20) + SourceIndex(0)
-5 >Emitted(26, 25) Source(45, 21) + SourceIndex(0)
-6 >Emitted(26, 33) Source(45, 29) + SourceIndex(0)
-7 >Emitted(26, 34) Source(45, 30) + SourceIndex(0)
+1->Emitted(40, 13) Source(45, 9) + SourceIndex(0)
+2 >Emitted(40, 19) Source(45, 15) + SourceIndex(0)
+3 >Emitted(40, 20) Source(45, 16) + SourceIndex(0)
+4 >Emitted(40, 24) Source(45, 20) + SourceIndex(0)
+5 >Emitted(40, 25) Source(45, 21) + SourceIndex(0)
+6 >Emitted(40, 33) Source(45, 29) + SourceIndex(0)
+7 >Emitted(40, 34) Source(45, 30) + SourceIndex(0)
 ---
 >>>        },
 1 >^^^^^^^^
@@ -298,8 +312,8 @@ sourceFile:sourceMapValidationDecorators.ts
 1 >
   >    
 2 >        }
-1 >Emitted(27, 9) Source(46, 5) + SourceIndex(0)
-2 >Emitted(27, 10) Source(46, 6) + SourceIndex(0)
+1 >Emitted(41, 9) Source(46, 5) + SourceIndex(0)
+2 >Emitted(41, 10) Source(46, 6) + SourceIndex(0)
 ---
 >>>        set: function (greetings) {
 1->^^^^^^^^^^^^^
@@ -314,9 +328,9 @@ sourceFile:sourceMapValidationDecorators.ts
   >                   @ParameterDecorator2(90) 
   >                   
 3 >                       greetings: string
-1->Emitted(28, 14) Source(48, 5) + SourceIndex(0)
-2 >Emitted(28, 24) Source(51, 7) + SourceIndex(0)
-3 >Emitted(28, 33) Source(51, 24) + SourceIndex(0)
+1->Emitted(42, 14) Source(48, 5) + SourceIndex(0)
+2 >Emitted(42, 24) Source(51, 7) + SourceIndex(0)
+3 >Emitted(42, 33) Source(51, 24) + SourceIndex(0)
 ---
 >>>            this.greeting = greetings;
 1->^^^^^^^^^^^^
@@ -334,13 +348,13 @@ sourceFile:sourceMapValidationDecorators.ts
 5 >                          = 
 6 >                            greetings
 7 >                                     ;
-1->Emitted(29, 13) Source(52, 9) + SourceIndex(0)
-2 >Emitted(29, 17) Source(52, 13) + SourceIndex(0)
-3 >Emitted(29, 18) Source(52, 14) + SourceIndex(0)
-4 >Emitted(29, 26) Source(52, 22) + SourceIndex(0)
-5 >Emitted(29, 29) Source(52, 25) + SourceIndex(0)
-6 >Emitted(29, 38) Source(52, 34) + SourceIndex(0)
-7 >Emitted(29, 39) Source(52, 35) + SourceIndex(0)
+1->Emitted(43, 13) Source(52, 9) + SourceIndex(0)
+2 >Emitted(43, 17) Source(52, 13) + SourceIndex(0)
+3 >Emitted(43, 18) Source(52, 14) + SourceIndex(0)
+4 >Emitted(43, 26) Source(52, 22) + SourceIndex(0)
+5 >Emitted(43, 29) Source(52, 25) + SourceIndex(0)
+6 >Emitted(43, 38) Source(52, 34) + SourceIndex(0)
+7 >Emitted(43, 39) Source(52, 35) + SourceIndex(0)
 ---
 >>>        },
 1 >^^^^^^^^
@@ -349,17 +363,18 @@ sourceFile:sourceMapValidationDecorators.ts
 1 >
   >    
 2 >        }
-1 >Emitted(30, 9) Source(53, 5) + SourceIndex(0)
-2 >Emitted(30, 10) Source(53, 6) + SourceIndex(0)
+1 >Emitted(44, 9) Source(53, 5) + SourceIndex(0)
+2 >Emitted(44, 10) Source(53, 6) + SourceIndex(0)
 ---
 >>>        enumerable: true,
 >>>        configurable: true
 >>>    });
 1->^^^^^^^
-2 >       ^^^^^^^^^^^^^^->
+2 >       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->
-1->Emitted(33, 8) Source(46, 6) + SourceIndex(0)
+1->Emitted(47, 8) Source(46, 6) + SourceIndex(0)
 ---
+>>>    __names(Greeter.prototype, ["greet", "fn"]);
 >>>    Greeter.x1 = 10;
 1->^^^^
 2 >    ^^^^^^^^^^
@@ -371,17 +386,17 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >              : number = 
 4 >                 10
 5 >                   ;
-1->Emitted(34, 5) Source(33, 20) + SourceIndex(0)
-2 >Emitted(34, 15) Source(33, 22) + SourceIndex(0)
-3 >Emitted(34, 18) Source(33, 33) + SourceIndex(0)
-4 >Emitted(34, 20) Source(33, 35) + SourceIndex(0)
-5 >Emitted(34, 21) Source(33, 36) + SourceIndex(0)
+1->Emitted(49, 5) Source(33, 20) + SourceIndex(0)
+2 >Emitted(49, 15) Source(33, 22) + SourceIndex(0)
+3 >Emitted(49, 18) Source(33, 33) + SourceIndex(0)
+4 >Emitted(49, 20) Source(33, 35) + SourceIndex(0)
+5 >Emitted(49, 21) Source(33, 36) + SourceIndex(0)
 ---
 >>>    __decorate([
 1 >^^^^
 2 >    ^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
-1 >Emitted(35, 5) Source(23, 5) + SourceIndex(0)
+1 >Emitted(50, 5) Source(23, 5) + SourceIndex(0)
 ---
 >>>        PropertyDecorator1,
 1->^^^^^^^^
@@ -389,8 +404,8 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >                          ^^^^^->
 1->
 2 >        PropertyDecorator1
-1->Emitted(36, 9) Source(21, 6) + SourceIndex(0)
-2 >Emitted(36, 27) Source(21, 24) + SourceIndex(0)
+1->Emitted(51, 9) Source(21, 6) + SourceIndex(0)
+2 >Emitted(51, 27) Source(21, 24) + SourceIndex(0)
 ---
 >>>        PropertyDecorator2(40)
 1->^^^^^^^^
@@ -405,11 +420,11 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >                          (
 4 >                           40
 5 >                             )
-1->Emitted(37, 9) Source(22, 6) + SourceIndex(0)
-2 >Emitted(37, 27) Source(22, 24) + SourceIndex(0)
-3 >Emitted(37, 28) Source(22, 25) + SourceIndex(0)
-4 >Emitted(37, 30) Source(22, 27) + SourceIndex(0)
-5 >Emitted(37, 31) Source(22, 28) + SourceIndex(0)
+1->Emitted(52, 9) Source(22, 6) + SourceIndex(0)
+2 >Emitted(52, 27) Source(22, 24) + SourceIndex(0)
+3 >Emitted(52, 28) Source(22, 25) + SourceIndex(0)
+4 >Emitted(52, 30) Source(22, 27) + SourceIndex(0)
+5 >Emitted(52, 31) Source(22, 28) + SourceIndex(0)
 ---
 >>>    ], Greeter.prototype, "greet", null);
 1->^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -417,7 +432,7 @@ sourceFile:sourceMapValidationDecorators.ts
   >    greet() {
   >        return "<h1>" + this.greeting + "</h1>";
   >    }
-1->Emitted(38, 41) Source(25, 6) + SourceIndex(0)
+1->Emitted(53, 41) Source(25, 6) + SourceIndex(0)
 ---
 >>>    __decorate([
 1 >^^^^
@@ -427,7 +442,7 @@ sourceFile:sourceMapValidationDecorators.ts
   >    @PropertyDecorator1
   >    @PropertyDecorator2(50)
   >    
-1 >Emitted(39, 5) Source(29, 5) + SourceIndex(0)
+1 >Emitted(54, 5) Source(29, 5) + SourceIndex(0)
 ---
 >>>        PropertyDecorator1,
 1->^^^^^^^^
@@ -435,8 +450,8 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >                          ^^^^^->
 1->
 2 >        PropertyDecorator1
-1->Emitted(40, 9) Source(27, 6) + SourceIndex(0)
-2 >Emitted(40, 27) Source(27, 24) + SourceIndex(0)
+1->Emitted(55, 9) Source(27, 6) + SourceIndex(0)
+2 >Emitted(55, 27) Source(27, 24) + SourceIndex(0)
 ---
 >>>        PropertyDecorator2(50)
 1->^^^^^^^^
@@ -451,17 +466,17 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >                          (
 4 >                           50
 5 >                             )
-1->Emitted(41, 9) Source(28, 6) + SourceIndex(0)
-2 >Emitted(41, 27) Source(28, 24) + SourceIndex(0)
-3 >Emitted(41, 28) Source(28, 25) + SourceIndex(0)
-4 >Emitted(41, 30) Source(28, 27) + SourceIndex(0)
-5 >Emitted(41, 31) Source(28, 28) + SourceIndex(0)
+1->Emitted(56, 9) Source(28, 6) + SourceIndex(0)
+2 >Emitted(56, 27) Source(28, 24) + SourceIndex(0)
+3 >Emitted(56, 28) Source(28, 25) + SourceIndex(0)
+4 >Emitted(56, 30) Source(28, 27) + SourceIndex(0)
+5 >Emitted(56, 31) Source(28, 28) + SourceIndex(0)
 ---
 >>>    ], Greeter.prototype, "x", void 0);
 1->^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 1->
   >    private x: string;
-1->Emitted(42, 39) Source(29, 23) + SourceIndex(0)
+1->Emitted(57, 39) Source(29, 23) + SourceIndex(0)
 ---
 >>>    __decorate([
 1 >^^^^
@@ -473,7 +488,7 @@ sourceFile:sourceMapValidationDecorators.ts
   >    private static x1: number = 10;
   >    
   >    
-1 >Emitted(43, 5) Source(35, 5) + SourceIndex(0)
+1 >Emitted(58, 5) Source(35, 5) + SourceIndex(0)
 ---
 >>>        __param(0, ParameterDecorator1),
 1->^^^^^^^^
@@ -486,10 +501,10 @@ sourceFile:sourceMapValidationDecorators.ts
 2 >        
 3 >                   ParameterDecorator1
 4 >                                      
-1->Emitted(44, 9) Source(36, 8) + SourceIndex(0)
-2 >Emitted(44, 20) Source(36, 8) + SourceIndex(0)
-3 >Emitted(44, 39) Source(36, 27) + SourceIndex(0)
-4 >Emitted(44, 40) Source(36, 27) + SourceIndex(0)
+1->Emitted(59, 9) Source(36, 8) + SourceIndex(0)
+2 >Emitted(59, 20) Source(36, 8) + SourceIndex(0)
+3 >Emitted(59, 39) Source(36, 27) + SourceIndex(0)
+4 >Emitted(59, 40) Source(36, 27) + SourceIndex(0)
 ---
 >>>        __param(0, ParameterDecorator2(70))
 1->^^^^^^^^
@@ -507,13 +522,13 @@ sourceFile:sourceMapValidationDecorators.ts
 5 >                                       70
 6 >                                         )
 7 >                                          
-1->Emitted(45, 9) Source(37, 8) + SourceIndex(0)
-2 >Emitted(45, 20) Source(37, 8) + SourceIndex(0)
-3 >Emitted(45, 39) Source(37, 27) + SourceIndex(0)
-4 >Emitted(45, 40) Source(37, 28) + SourceIndex(0)
-5 >Emitted(45, 42) Source(37, 30) + SourceIndex(0)
-6 >Emitted(45, 43) Source(37, 31) + SourceIndex(0)
-7 >Emitted(45, 44) Source(37, 31) + SourceIndex(0)
+1->Emitted(60, 9) Source(37, 8) + SourceIndex(0)
+2 >Emitted(60, 20) Source(37, 8) + SourceIndex(0)
+3 >Emitted(60, 39) Source(37, 27) + SourceIndex(0)
+4 >Emitted(60, 40) Source(37, 28) + SourceIndex(0)
+5 >Emitted(60, 42) Source(37, 30) + SourceIndex(0)
+6 >Emitted(60, 43) Source(37, 31) + SourceIndex(0)
+7 >Emitted(60, 44) Source(37, 31) + SourceIndex(0)
 ---
 >>>    ], Greeter.prototype, "fn", null);
 1 >^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -521,7 +536,7 @@ sourceFile:sourceMapValidationDecorators.ts
   >      x: number) {
   >        return this.greeting;
   >    }
-1 >Emitted(46, 38) Source(40, 6) + SourceIndex(0)
+1 >Emitted(61, 38) Source(40, 6) + SourceIndex(0)
 ---
 >>>    __decorate([
 1 >^^^^
@@ -531,7 +546,7 @@ sourceFile:sourceMapValidationDecorators.ts
   >    @PropertyDecorator1
   >    @PropertyDecorator2(80)
   >    
-1 >Emitted(47, 5) Source(44, 5) + SourceIndex(0)
+1 >Emitted(62, 5) Source(44, 5) + SourceIndex(0)
 ---
 >>>        PropertyDecorator1,
 1->^^^^^^^^
@@ -539,8 +554,8 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >                          ^^^^^^->
 1->
 2 >        PropertyDecorator1
-1->Emitted(48, 9) Source(42, 6) + SourceIndex(0)
-2 >Emitted(48, 27) Source(42, 24) + SourceIndex(0)
+1->Emitted(63, 9) Source(42, 6) + SourceIndex(0)
+2 >Emitted(63, 27) Source(42, 24) + SourceIndex(0)
 ---
 >>>        PropertyDecorator2(80),
 1->^^^^^^^^
@@ -555,11 +570,11 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >                          (
 4 >                           80
 5 >                             )
-1->Emitted(49, 9) Source(43, 6) + SourceIndex(0)
-2 >Emitted(49, 27) Source(43, 24) + SourceIndex(0)
-3 >Emitted(49, 28) Source(43, 25) + SourceIndex(0)
-4 >Emitted(49, 30) Source(43, 27) + SourceIndex(0)
-5 >Emitted(49, 31) Source(43, 28) + SourceIndex(0)
+1->Emitted(64, 9) Source(43, 6) + SourceIndex(0)
+2 >Emitted(64, 27) Source(43, 24) + SourceIndex(0)
+3 >Emitted(64, 28) Source(43, 25) + SourceIndex(0)
+4 >Emitted(64, 30) Source(43, 27) + SourceIndex(0)
+5 >Emitted(64, 31) Source(43, 28) + SourceIndex(0)
 ---
 >>>        __param(0, ParameterDecorator1),
 1->^^^^^^^^
@@ -577,10 +592,10 @@ sourceFile:sourceMapValidationDecorators.ts
 2 >        
 3 >                   ParameterDecorator1
 4 >                                      
-1->Emitted(50, 9) Source(49, 8) + SourceIndex(0)
-2 >Emitted(50, 20) Source(49, 8) + SourceIndex(0)
-3 >Emitted(50, 39) Source(49, 27) + SourceIndex(0)
-4 >Emitted(50, 40) Source(49, 27) + SourceIndex(0)
+1->Emitted(65, 9) Source(49, 8) + SourceIndex(0)
+2 >Emitted(65, 20) Source(49, 8) + SourceIndex(0)
+3 >Emitted(65, 39) Source(49, 27) + SourceIndex(0)
+4 >Emitted(65, 40) Source(49, 27) + SourceIndex(0)
 ---
 >>>        __param(0, ParameterDecorator2(90))
 1->^^^^^^^^
@@ -599,24 +614,24 @@ sourceFile:sourceMapValidationDecorators.ts
 5 >                                       90
 6 >                                         )
 7 >                                          
-1->Emitted(51, 9) Source(50, 8) + SourceIndex(0)
-2 >Emitted(51, 20) Source(50, 8) + SourceIndex(0)
-3 >Emitted(51, 39) Source(50, 27) + SourceIndex(0)
-4 >Emitted(51, 40) Source(50, 28) + SourceIndex(0)
-5 >Emitted(51, 42) Source(50, 30) + SourceIndex(0)
-6 >Emitted(51, 43) Source(50, 31) + SourceIndex(0)
-7 >Emitted(51, 44) Source(50, 31) + SourceIndex(0)
+1->Emitted(66, 9) Source(50, 8) + SourceIndex(0)
+2 >Emitted(66, 20) Source(50, 8) + SourceIndex(0)
+3 >Emitted(66, 39) Source(50, 27) + SourceIndex(0)
+4 >Emitted(66, 40) Source(50, 28) + SourceIndex(0)
+5 >Emitted(66, 42) Source(50, 30) + SourceIndex(0)
+6 >Emitted(66, 43) Source(50, 31) + SourceIndex(0)
+7 >Emitted(66, 44) Source(50, 31) + SourceIndex(0)
 ---
 >>>    ], Greeter.prototype, "greetings", null);
 1->^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 1->
-1->Emitted(52, 45) Source(46, 6) + SourceIndex(0)
+1->Emitted(67, 45) Source(46, 6) + SourceIndex(0)
 ---
 >>>    __decorate([
 1 >^^^^
 2 >    ^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
-1 >Emitted(53, 5) Source(33, 5) + SourceIndex(0)
+1 >Emitted(68, 5) Source(33, 5) + SourceIndex(0)
 ---
 >>>        PropertyDecorator1,
 1->^^^^^^^^
@@ -624,8 +639,8 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >                          ^^^^^->
 1->
 2 >        PropertyDecorator1
-1->Emitted(54, 9) Source(31, 6) + SourceIndex(0)
-2 >Emitted(54, 27) Source(31, 24) + SourceIndex(0)
+1->Emitted(69, 9) Source(31, 6) + SourceIndex(0)
+2 >Emitted(69, 27) Source(31, 24) + SourceIndex(0)
 ---
 >>>        PropertyDecorator2(60)
 1->^^^^^^^^
@@ -640,17 +655,17 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >                          (
 4 >                           60
 5 >                             )
-1->Emitted(55, 9) Source(32, 6) + SourceIndex(0)
-2 >Emitted(55, 27) Source(32, 24) + SourceIndex(0)
-3 >Emitted(55, 28) Source(32, 25) + SourceIndex(0)
-4 >Emitted(55, 30) Source(32, 27) + SourceIndex(0)
-5 >Emitted(55, 31) Source(32, 28) + SourceIndex(0)
+1->Emitted(70, 9) Source(32, 6) + SourceIndex(0)
+2 >Emitted(70, 27) Source(32, 24) + SourceIndex(0)
+3 >Emitted(70, 28) Source(32, 25) + SourceIndex(0)
+4 >Emitted(70, 30) Source(32, 27) + SourceIndex(0)
+5 >Emitted(70, 31) Source(32, 28) + SourceIndex(0)
 ---
 >>>    ], Greeter, "x1", void 0);
 1->^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 1->
   >    private static x1: number = 10;
-1->Emitted(56, 30) Source(33, 36) + SourceIndex(0)
+1->Emitted(71, 30) Source(33, 36) + SourceIndex(0)
 ---
 >>>    Greeter = __decorate([
 1 >^^^^
@@ -658,8 +673,8 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >           ^^^^^^^^^^^^^^->
 1 >
 2 >    Greeter
-1 >Emitted(57, 5) Source(10, 7) + SourceIndex(0)
-2 >Emitted(57, 12) Source(10, 14) + SourceIndex(0)
+1 >Emitted(72, 5) Source(10, 7) + SourceIndex(0)
+2 >Emitted(72, 12) Source(10, 14) + SourceIndex(0)
 ---
 >>>        ClassDecorator1,
 1->^^^^^^^^
@@ -667,8 +682,8 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >                       ^^^^^^->
 1->
 2 >        ClassDecorator1
-1->Emitted(58, 9) Source(8, 2) + SourceIndex(0)
-2 >Emitted(58, 24) Source(8, 17) + SourceIndex(0)
+1->Emitted(73, 9) Source(8, 2) + SourceIndex(0)
+2 >Emitted(73, 24) Source(8, 17) + SourceIndex(0)
 ---
 >>>        ClassDecorator2(10),
 1->^^^^^^^^
@@ -683,11 +698,11 @@ sourceFile:sourceMapValidationDecorators.ts
 3 >                       (
 4 >                        10
 5 >                          )
-1->Emitted(59, 9) Source(9, 2) + SourceIndex(0)
-2 >Emitted(59, 24) Source(9, 17) + SourceIndex(0)
-3 >Emitted(59, 25) Source(9, 18) + SourceIndex(0)
-4 >Emitted(59, 27) Source(9, 20) + SourceIndex(0)
-5 >Emitted(59, 28) Source(9, 21) + SourceIndex(0)
+1->Emitted(74, 9) Source(9, 2) + SourceIndex(0)
+2 >Emitted(74, 24) Source(9, 17) + SourceIndex(0)
+3 >Emitted(74, 25) Source(9, 18) + SourceIndex(0)
+4 >Emitted(74, 27) Source(9, 20) + SourceIndex(0)
+5 >Emitted(74, 28) Source(9, 21) + SourceIndex(0)
 ---
 >>>        __param(0, ParameterDecorator1),
 1->^^^^^^^^
@@ -702,10 +717,10 @@ sourceFile:sourceMapValidationDecorators.ts
 2 >        
 3 >                   ParameterDecorator1
 4 >                                      
-1->Emitted(60, 9) Source(12, 8) + SourceIndex(0)
-2 >Emitted(60, 20) Source(12, 8) + SourceIndex(0)
-3 >Emitted(60, 39) Source(12, 27) + SourceIndex(0)
-4 >Emitted(60, 40) Source(12, 27) + SourceIndex(0)
+1->Emitted(75, 9) Source(12, 8) + SourceIndex(0)
+2 >Emitted(75, 20) Source(12, 8) + SourceIndex(0)
+3 >Emitted(75, 39) Source(12, 27) + SourceIndex(0)
+4 >Emitted(75, 40) Source(12, 27) + SourceIndex(0)
 ---
 >>>        __param(0, ParameterDecorator2(20)),
 1->^^^^^^^^
@@ -723,13 +738,13 @@ sourceFile:sourceMapValidationDecorators.ts
 5 >                                       20
 6 >                                         )
 7 >                                          
-1->Emitted(61, 9) Source(13, 8) + SourceIndex(0)
-2 >Emitted(61, 20) Source(13, 8) + SourceIndex(0)
-3 >Emitted(61, 39) Source(13, 27) + SourceIndex(0)
-4 >Emitted(61, 40) Source(13, 28) + SourceIndex(0)
-5 >Emitted(61, 42) Source(13, 30) + SourceIndex(0)
-6 >Emitted(61, 43) Source(13, 31) + SourceIndex(0)
-7 >Emitted(61, 44) Source(13, 31) + SourceIndex(0)
+1->Emitted(76, 9) Source(13, 8) + SourceIndex(0)
+2 >Emitted(76, 20) Source(13, 8) + SourceIndex(0)
+3 >Emitted(76, 39) Source(13, 27) + SourceIndex(0)
+4 >Emitted(76, 40) Source(13, 28) + SourceIndex(0)
+5 >Emitted(76, 42) Source(13, 30) + SourceIndex(0)
+6 >Emitted(76, 43) Source(13, 31) + SourceIndex(0)
+7 >Emitted(76, 44) Source(13, 31) + SourceIndex(0)
 ---
 >>>        __param(1, ParameterDecorator1),
 1 >^^^^^^^^
@@ -744,10 +759,10 @@ sourceFile:sourceMapValidationDecorators.ts
 2 >        
 3 >                   ParameterDecorator1
 4 >                                      
-1 >Emitted(62, 9) Source(16, 8) + SourceIndex(0)
-2 >Emitted(62, 20) Source(16, 8) + SourceIndex(0)
-3 >Emitted(62, 39) Source(16, 27) + SourceIndex(0)
-4 >Emitted(62, 40) Source(16, 27) + SourceIndex(0)
+1 >Emitted(77, 9) Source(16, 8) + SourceIndex(0)
+2 >Emitted(77, 20) Source(16, 8) + SourceIndex(0)
+3 >Emitted(77, 39) Source(16, 27) + SourceIndex(0)
+4 >Emitted(77, 40) Source(16, 27) + SourceIndex(0)
 ---
 >>>        __param(1, ParameterDecorator2(30))
 1->^^^^^^^^
@@ -765,13 +780,13 @@ sourceFile:sourceMapValidationDecorators.ts
 5 >                                       30
 6 >                                         )
 7 >                                          
-1->Emitted(63, 9) Source(17, 8) + SourceIndex(0)
-2 >Emitted(63, 20) Source(17, 8) + SourceIndex(0)
-3 >Emitted(63, 39) Source(17, 27) + SourceIndex(0)
-4 >Emitted(63, 40) Source(17, 28) + SourceIndex(0)
-5 >Emitted(63, 42) Source(17, 30) + SourceIndex(0)
-6 >Emitted(63, 43) Source(17, 31) + SourceIndex(0)
-7 >Emitted(63, 44) Source(17, 31) + SourceIndex(0)
+1->Emitted(78, 9) Source(17, 8) + SourceIndex(0)
+2 >Emitted(78, 20) Source(17, 8) + SourceIndex(0)
+3 >Emitted(78, 39) Source(17, 27) + SourceIndex(0)
+4 >Emitted(78, 40) Source(17, 28) + SourceIndex(0)
+5 >Emitted(78, 42) Source(17, 30) + SourceIndex(0)
+6 >Emitted(78, 43) Source(17, 31) + SourceIndex(0)
+7 >Emitted(78, 44) Source(17, 31) + SourceIndex(0)
 ---
 >>>    ], Greeter);
 1 >^^^^^^^
@@ -825,17 +840,17 @@ sourceFile:sourceMapValidationDecorators.ts
   >                      this.greeting = greetings;
   >                  }    
   >              }
-1 >Emitted(64, 8) Source(10, 7) + SourceIndex(0)
-2 >Emitted(64, 15) Source(10, 14) + SourceIndex(0)
-3 >Emitted(64, 16) Source(54, 2) + SourceIndex(0)
+1 >Emitted(79, 8) Source(10, 7) + SourceIndex(0)
+2 >Emitted(79, 15) Source(10, 14) + SourceIndex(0)
+3 >Emitted(79, 16) Source(54, 2) + SourceIndex(0)
 ---
 >>>    return Greeter;
 1->^^^^
 2 >    ^^^^^^^^^^^^^^
 1->
 2 >    }
-1->Emitted(65, 5) Source(54, 1) + SourceIndex(0)
-2 >Emitted(65, 19) Source(54, 2) + SourceIndex(0)
+1->Emitted(80, 5) Source(54, 1) + SourceIndex(0)
+2 >Emitted(80, 19) Source(54, 2) + SourceIndex(0)
 ---
 >>>}());
 1 >^
@@ -889,8 +904,8 @@ sourceFile:sourceMapValidationDecorators.ts
   >         this.greeting = greetings;
   >     }    
   > }
-1 >Emitted(66, 2) Source(54, 2) + SourceIndex(0)
-2 >Emitted(66, 2) Source(10, 1) + SourceIndex(0)
-3 >Emitted(66, 6) Source(54, 2) + SourceIndex(0)
+1 >Emitted(81, 2) Source(54, 2) + SourceIndex(0)
+2 >Emitted(81, 2) Source(10, 1) + SourceIndex(0)
+3 >Emitted(81, 6) Source(54, 2) + SourceIndex(0)
 ---
 >>>//# sourceMappingURL=sourceMapValidationDecorators.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/specializedOverloadWithRestParameters.js b/tests/baselines/reference/specializedOverloadWithRestParameters.js
index 892f30441f8a6..fdb9d2982a059 100644
--- a/tests/baselines/reference/specializedOverloadWithRestParameters.js
+++ b/tests/baselines/reference/specializedOverloadWithRestParameters.js
@@ -13,6 +13,20 @@ function g(tagName: any): Base {
 }
 
 //// [specializedOverloadWithRestParameters.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -27,6 +41,7 @@ var Base = (function () {
     function Base() {
     }
     Base.prototype.foo = function () { };
+    __names(Base.prototype, ["foo"]);
     return Base;
 }());
 var Derived1 = (function (_super) {
@@ -35,6 +50,7 @@ var Derived1 = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived1.prototype.bar = function () { };
+    __names(Derived1.prototype, ["bar"]);
     return Derived1;
 }(Base));
 function f(tagName) {
diff --git a/tests/baselines/reference/specializedSignatureIsNotSubtypeOfNonSpecializedSignature.js b/tests/baselines/reference/specializedSignatureIsNotSubtypeOfNonSpecializedSignature.js
index 2654049a323e2..7393463ba5df5 100644
--- a/tests/baselines/reference/specializedSignatureIsNotSubtypeOfNonSpecializedSignature.js
+++ b/tests/baselines/reference/specializedSignatureIsNotSubtypeOfNonSpecializedSignature.js
@@ -64,23 +64,40 @@ var a3: {
 
 
 //// [specializedSignatureIsNotSubtypeOfNonSpecializedSignature.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x) { }
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var C2 = (function () {
     function C2() {
     }
     C2.prototype.foo = function (x) { };
+    __names(C2.prototype, ["foo"]);
     return C2;
 }());
 var C3 = (function () {
     function C3() {
     }
     C3.prototype.foo = function (x) { };
+    __names(C3.prototype, ["foo"]);
     return C3;
 }());
 var a;
diff --git a/tests/baselines/reference/specializedSignatureIsSubtypeOfNonSpecializedSignature.js b/tests/baselines/reference/specializedSignatureIsSubtypeOfNonSpecializedSignature.js
index f4e7961226a2b..179253fc35538 100644
--- a/tests/baselines/reference/specializedSignatureIsSubtypeOfNonSpecializedSignature.js
+++ b/tests/baselines/reference/specializedSignatureIsSubtypeOfNonSpecializedSignature.js
@@ -84,23 +84,40 @@ var a3: {
 //// [specializedSignatureIsSubtypeOfNonSpecializedSignature.js]
 // Specialized signatures must be a subtype of a non-specialized signature
 // All the below should not be errors
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x) { }
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var C2 = (function () {
     function C2() {
     }
     C2.prototype.foo = function (x) { };
+    __names(C2.prototype, ["foo"]);
     return C2;
 }());
 var C3 = (function () {
     function C3() {
     }
     C3.prototype.foo = function (x) { };
+    __names(C3.prototype, ["foo"]);
     return C3;
 }());
 var a;
diff --git a/tests/baselines/reference/spreadMethods.js b/tests/baselines/reference/spreadMethods.js
index 691d6fa282944..c877687779629 100644
--- a/tests/baselines/reference/spreadMethods.js
+++ b/tests/baselines/reference/spreadMethods.js
@@ -25,6 +25,20 @@ sso.m(); // ok
 
 
 //// [spreadMethods.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __assign = (this && this.__assign) || Object.assign || function(t) {
     for (var s, i = 1, n = arguments.length; i < n; i++) {
         s = arguments[i];
@@ -38,6 +52,7 @@ var K = (function () {
         this.p = 12;
     }
     K.prototype.m = function () { };
+    __names(K.prototype, ["m"]);
     return K;
 }());
 var k = new K();
diff --git a/tests/baselines/reference/staticAndMemberFunctions.js b/tests/baselines/reference/staticAndMemberFunctions.js
index ddf47b941d46e..1949ca1f64c41 100644
--- a/tests/baselines/reference/staticAndMemberFunctions.js
+++ b/tests/baselines/reference/staticAndMemberFunctions.js
@@ -5,10 +5,25 @@ class T {
 }
 
 //// [staticAndMemberFunctions.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var T = (function () {
     function T() {
     }
     T.x = function () { };
     T.prototype.y = function () { };
+    __names(T.prototype, ["y"]);
     return T;
 }());
diff --git a/tests/baselines/reference/staticAndNonStaticPropertiesSameName.js b/tests/baselines/reference/staticAndNonStaticPropertiesSameName.js
index a5c7c5245e927..a423898e379dc 100644
--- a/tests/baselines/reference/staticAndNonStaticPropertiesSameName.js
+++ b/tests/baselines/reference/staticAndNonStaticPropertiesSameName.js
@@ -8,10 +8,25 @@ class C {
 }
 
 //// [staticAndNonStaticPropertiesSameName.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.f = function () { };
     C.f = function () { };
+    __names(C.prototype, ["f"]);
     return C;
 }());
diff --git a/tests/baselines/reference/staticClassMemberError.js b/tests/baselines/reference/staticClassMemberError.js
index 62166aef8337e..c4ce20719ac26 100644
--- a/tests/baselines/reference/staticClassMemberError.js
+++ b/tests/baselines/reference/staticClassMemberError.js
@@ -13,12 +13,27 @@ class Foo {
 }
 
 //// [staticClassMemberError.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.a = function () {
         s = 1;
     };
+    __names(C.prototype, ["a"]);
     return C;
 }());
 var Foo = (function () {
diff --git a/tests/baselines/reference/staticClassProps.js b/tests/baselines/reference/staticClassProps.js
index 31aa67c56df4c..39925d139e8ad 100644
--- a/tests/baselines/reference/staticClassProps.js
+++ b/tests/baselines/reference/staticClassProps.js
@@ -9,11 +9,26 @@ class C
 
 
 //// [staticClassProps.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function () {
     };
+    __names(C.prototype, ["foo"]);
     C.z = 1;
     return C;
 }());
diff --git a/tests/baselines/reference/staticFactory1.js b/tests/baselines/reference/staticFactory1.js
index b73dce8a0cf3b..a37c3ed112c16 100644
--- a/tests/baselines/reference/staticFactory1.js
+++ b/tests/baselines/reference/staticFactory1.js
@@ -14,6 +14,20 @@ var d = Derived.create();
 d.foo();  
 
 //// [staticFactory1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -31,6 +45,7 @@ var Base = (function () {
     Base.create = function () {
         return new this();
     };
+    __names(Base.prototype, ["foo"]);
     return Base;
 }());
 var Derived = (function (_super) {
@@ -39,6 +54,7 @@ var Derived = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     Derived.prototype.foo = function () { return 2; };
+    __names(Derived.prototype, ["foo"]);
     return Derived;
 }(Base));
 var d = Derived.create();
diff --git a/tests/baselines/reference/staticInstanceResolution.js b/tests/baselines/reference/staticInstanceResolution.js
index 788a8634c2eb4..ccbba20fab463 100644
--- a/tests/baselines/reference/staticInstanceResolution.js
+++ b/tests/baselines/reference/staticInstanceResolution.js
@@ -15,6 +15,20 @@ class Comment {
 }
 
 //// [staticInstanceResolution.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Comment = (function () {
     function Comment() {
     }
@@ -25,5 +39,6 @@ var Comment = (function () {
         var c;
         c.getDocCommentText();
     };
+    __names(Comment.prototype, ["getDocCommentText"]);
     return Comment;
 }());
diff --git a/tests/baselines/reference/staticInstanceResolution4.js b/tests/baselines/reference/staticInstanceResolution4.js
index ab98d9deb8e08..409777bd8ab76 100644
--- a/tests/baselines/reference/staticInstanceResolution4.js
+++ b/tests/baselines/reference/staticInstanceResolution4.js
@@ -6,10 +6,25 @@ class A {
 A.foo();
 
 //// [staticInstanceResolution4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 A.foo();
diff --git a/tests/baselines/reference/staticMemberExportAccess.js b/tests/baselines/reference/staticMemberExportAccess.js
index b0261e79c8ebb..874e694dbae50 100644
--- a/tests/baselines/reference/staticMemberExportAccess.js
+++ b/tests/baselines/reference/staticMemberExportAccess.js
@@ -21,6 +21,20 @@ var r4 = $.sammy.x; // error
 Sammy.bar();
 
 //// [staticMemberExportAccess.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Sammy = (function () {
     function Sammy() {
     }
@@ -28,6 +42,7 @@ var Sammy = (function () {
     Sammy.bar = function () {
         return -1;
     };
+    __names(Sammy.prototype, ["foo"]);
     return Sammy;
 }());
 (function (Sammy) {
diff --git a/tests/baselines/reference/staticMemberOfClassAndPublicMemberOfAnotherClassAssignment.js b/tests/baselines/reference/staticMemberOfClassAndPublicMemberOfAnotherClassAssignment.js
index 00de82a4f6de7..7df37b0e38540 100644
--- a/tests/baselines/reference/staticMemberOfClassAndPublicMemberOfAnotherClassAssignment.js
+++ b/tests/baselines/reference/staticMemberOfClassAndPublicMemberOfAnotherClassAssignment.js
@@ -26,10 +26,25 @@ c = a;
 
 
 //// [staticMemberOfClassAndPublicMemberOfAnotherClassAssignment.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var B = (function () {
     function B() {
     }
     B.prototype.prop = function () { };
+    __names(B.prototype, ["prop"]);
     return B;
 }());
 var C = (function () {
diff --git a/tests/baselines/reference/staticMethodWithTypeParameterExtendsClauseDeclFile.js b/tests/baselines/reference/staticMethodWithTypeParameterExtendsClauseDeclFile.js
index b8b5b030bcd87..37ff9da5c6587 100644
--- a/tests/baselines/reference/staticMethodWithTypeParameterExtendsClauseDeclFile.js
+++ b/tests/baselines/reference/staticMethodWithTypeParameterExtendsClauseDeclFile.js
@@ -23,6 +23,20 @@ export class publicClassWithWithPrivateTypeParameters {
 
 //// [staticMethodWithTypeParameterExtendsClauseDeclFile.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var privateClass = (function () {
     function privateClass() {
@@ -50,6 +64,7 @@ var publicClassWithWithPrivateTypeParameters = (function () {
     };
     publicClassWithWithPrivateTypeParameters.prototype.myPublicMethod = function () {
     };
+    __names(publicClassWithWithPrivateTypeParameters.prototype, ["myPrivateMethod1", "myPrivateMethod2", "myPublicMethod"]);
     return publicClassWithWithPrivateTypeParameters;
 }());
 exports.publicClassWithWithPrivateTypeParameters = publicClassWithWithPrivateTypeParameters;
diff --git a/tests/baselines/reference/staticOffOfInstance1.js b/tests/baselines/reference/staticOffOfInstance1.js
index fa9f99f71fb2f..598a942258770 100644
--- a/tests/baselines/reference/staticOffOfInstance1.js
+++ b/tests/baselines/reference/staticOffOfInstance1.js
@@ -7,6 +7,20 @@ class List {
 }
 
 //// [staticOffOfInstance1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var List = (function () {
     function List() {
     }
@@ -14,5 +28,6 @@ var List = (function () {
         this.Foo();
     };
     List.Foo = function () { };
+    __names(List.prototype, ["Blah"]);
     return List;
 }());
diff --git a/tests/baselines/reference/staticOffOfInstance2.js b/tests/baselines/reference/staticOffOfInstance2.js
index e23416e29ddcc..63365a84ad6ab 100644
--- a/tests/baselines/reference/staticOffOfInstance2.js
+++ b/tests/baselines/reference/staticOffOfInstance2.js
@@ -9,6 +9,20 @@ class List<T> {
 
 
 //// [staticOffOfInstance2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var List = (function () {
     function List() {
     }
@@ -17,5 +31,6 @@ var List = (function () {
         List.Foo();
     };
     List.Foo = function () { };
+    __names(List.prototype, ["Blah"]);
     return List;
 }());
diff --git a/tests/baselines/reference/staticPropertyAndFunctionWithSameName.js b/tests/baselines/reference/staticPropertyAndFunctionWithSameName.js
index 71db1ca8ef198..02b1e0cc80d12 100644
--- a/tests/baselines/reference/staticPropertyAndFunctionWithSameName.js
+++ b/tests/baselines/reference/staticPropertyAndFunctionWithSameName.js
@@ -10,6 +10,20 @@ class D {
 }
 
 //// [staticPropertyAndFunctionWithSameName.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -19,5 +33,6 @@ var D = (function () {
     function D() {
     }
     D.prototype.f = function () { };
+    __names(D.prototype, ["f"]);
     return D;
 }());
diff --git a/tests/baselines/reference/staticPropertyNameConflicts.js b/tests/baselines/reference/staticPropertyNameConflicts.js
index b93b16550f0ca..db250be830f1b 100644
--- a/tests/baselines/reference/staticPropertyNameConflicts.js
+++ b/tests/baselines/reference/staticPropertyNameConflicts.js
@@ -192,6 +192,20 @@ module TestOnDefaultExportedClass_10 {
 }
 
 //// [staticPropertyNameConflicts.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // name
 var StaticName = (function () {
     function StaticName() {
@@ -203,6 +217,7 @@ var StaticNameFn = (function () {
     }
     StaticNameFn.name = function () { }; // error
     StaticNameFn.prototype.name = function () { }; // ok
+    __names(StaticNameFn.prototype, ["name"]);
     return StaticNameFn;
 }());
 // length
@@ -216,6 +231,7 @@ var StaticLengthFn = (function () {
     }
     StaticLengthFn.length = function () { }; // error
     StaticLengthFn.prototype.length = function () { }; // ok
+    __names(StaticLengthFn.prototype, ["length"]);
     return StaticLengthFn;
 }());
 // prototype
@@ -229,6 +245,7 @@ var StaticPrototypeFn = (function () {
     }
     StaticPrototypeFn.prototype = function () { }; // error
     StaticPrototypeFn.prototype.prototype = function () { }; // ok
+    __names(StaticPrototypeFn.prototype, ["prototype"]);
     return StaticPrototypeFn;
 }());
 // caller
@@ -242,6 +259,7 @@ var StaticCallerFn = (function () {
     }
     StaticCallerFn.caller = function () { }; // error
     StaticCallerFn.prototype.caller = function () { }; // ok
+    __names(StaticCallerFn.prototype, ["caller"]);
     return StaticCallerFn;
 }());
 // arguments
@@ -255,6 +273,7 @@ var StaticArgumentsFn = (function () {
     }
     StaticArgumentsFn.arguments = function () { }; // error
     StaticArgumentsFn.prototype.arguments = function () { }; // ok
+    __names(StaticArgumentsFn.prototype, ["arguments"]);
     return StaticArgumentsFn;
 }());
 // === Static properties on anonymous classes ===
@@ -269,6 +288,7 @@ var StaticNameFn_Anonymous = (function () {
     }
     class_2.name = function () { }; // error
     class_2.prototype.name = function () { }; // ok
+    __names(class_2.prototype, ["name"]);
     return class_2;
 }());
 // length
@@ -282,6 +302,7 @@ var StaticLengthFn_Anonymous = (function () {
     }
     class_4.length = function () { }; // error
     class_4.prototype.length = function () { }; // ok
+    __names(class_4.prototype, ["length"]);
     return class_4;
 }());
 // prototype
@@ -295,6 +316,7 @@ var StaticPrototypeFn_Anonymous = (function () {
     }
     class_6.prototype = function () { }; // error
     class_6.prototype.prototype = function () { }; // ok
+    __names(class_6.prototype, ["prototype"]);
     return class_6;
 }());
 // caller
@@ -308,6 +330,7 @@ var StaticCallerFn_Anonymous = (function () {
     }
     class_8.caller = function () { }; // error
     class_8.prototype.caller = function () { }; // ok
+    __names(class_8.prototype, ["caller"]);
     return class_8;
 }());
 // arguments
@@ -321,6 +344,7 @@ var StaticArgumentsFn_Anonymous = (function () {
     }
     class_10.arguments = function () { }; // error
     class_10.prototype.arguments = function () { }; // ok
+    __names(class_10.prototype, ["arguments"]);
     return class_10;
 }());
 // === Static properties on default exported classes ===
@@ -340,6 +364,7 @@ var TestOnDefaultExportedClass_2;
         }
         StaticNameFn.name = function () { }; // error
         StaticNameFn.prototype.name = function () { }; // ok
+        __names(StaticNameFn.prototype, ["name"]);
         return StaticNameFn;
     }());
 })(TestOnDefaultExportedClass_2 || (TestOnDefaultExportedClass_2 = {}));
@@ -360,6 +385,7 @@ var TestOnDefaultExportedClass_4;
         }
         StaticLengthFn.length = function () { }; // error
         StaticLengthFn.prototype.length = function () { }; // ok
+        __names(StaticLengthFn.prototype, ["length"]);
         return StaticLengthFn;
     }());
     TestOnDefaultExportedClass_4.StaticLengthFn = StaticLengthFn;
@@ -381,6 +407,7 @@ var TestOnDefaultExportedClass_6;
         }
         StaticPrototypeFn.prototype = function () { }; // error
         StaticPrototypeFn.prototype.prototype = function () { }; // ok
+        __names(StaticPrototypeFn.prototype, ["prototype"]);
         return StaticPrototypeFn;
     }());
     TestOnDefaultExportedClass_6.StaticPrototypeFn = StaticPrototypeFn;
@@ -402,6 +429,7 @@ var TestOnDefaultExportedClass_8;
         }
         StaticCallerFn.caller = function () { }; // error
         StaticCallerFn.prototype.caller = function () { }; // ok
+        __names(StaticCallerFn.prototype, ["caller"]);
         return StaticCallerFn;
     }());
     TestOnDefaultExportedClass_8.StaticCallerFn = StaticCallerFn;
@@ -423,6 +451,7 @@ var TestOnDefaultExportedClass_10;
         }
         StaticArgumentsFn.arguments = function () { }; // error
         StaticArgumentsFn.prototype.arguments = function () { }; // ok
+        __names(StaticArgumentsFn.prototype, ["arguments"]);
         return StaticArgumentsFn;
     }());
     TestOnDefaultExportedClass_10.StaticArgumentsFn = StaticArgumentsFn;
diff --git a/tests/baselines/reference/staticPropertyNotInClassType.js b/tests/baselines/reference/staticPropertyNotInClassType.js
index 6caa108a7106e..561419ead1e5a 100644
--- a/tests/baselines/reference/staticPropertyNotInClassType.js
+++ b/tests/baselines/reference/staticPropertyNotInClassType.js
@@ -40,6 +40,20 @@ module Generic {
 }
 
 //// [staticPropertyNotInClassType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var NonGeneric;
 (function (NonGeneric) {
     var C = (function () {
@@ -54,6 +68,7 @@ var NonGeneric;
             enumerable: true,
             configurable: true
         });
+        __names(C.prototype, ["fn"]);
         return C;
     }());
     (function (C) {
@@ -79,6 +94,7 @@ var Generic;
             enumerable: true,
             configurable: true
         });
+        __names(C.prototype, ["fn"]);
         return C;
     }());
     (function (C) {
diff --git a/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js b/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js
index 2539ce5dbbb46..3b8b65c09123d 100644
--- a/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js
+++ b/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js
@@ -29,6 +29,20 @@ class G extends package { }
 class H extends package.A { }
 
 //// [strictModeReservedWordInClassDeclaration.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -44,6 +58,7 @@ var Foo = (function () {
         private = public = static;
     }
     Foo.prototype.banana = function (x) { };
+    __names(Foo.prototype, ["banana"]);
     return Foo;
 }());
 var C = (function () {
@@ -55,6 +70,7 @@ var C = (function () {
         var z = function let() { };
     };
     C.prototype.pulbic = function () { }; // No Error;
+    __names(C.prototype, ["foo1", "pulbic"]);
     return C;
 }());
 var D = (function () {
diff --git a/tests/baselines/reference/strictModeUseContextualKeyword.js b/tests/baselines/reference/strictModeUseContextualKeyword.js
index d21463f3b398f..9a8816d8bcbc6 100644
--- a/tests/baselines/reference/strictModeUseContextualKeyword.js
+++ b/tests/baselines/reference/strictModeUseContextualKeyword.js
@@ -15,12 +15,27 @@ function H() {
 
 //// [strictModeUseContextualKeyword.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var as = 0;
 function foo(as) { }
 var C = (function () {
     function C() {
     }
     C.prototype.as = function () { };
+    __names(C.prototype, ["as"]);
     return C;
 }());
 function F() {
diff --git a/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations.js b/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations.js
index 57df8ce288351..6a02a3bd77825 100644
--- a/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations.js
+++ b/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations.js
@@ -99,6 +99,20 @@ var b: { [x: string]: string; } = {
 
 //// [stringIndexerConstrainsPropertyDeclarations.js]
 // String indexer types constrain the types of named properties in their containing type
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     } // ok
@@ -122,6 +136,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js b/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js
index f9942aff04232..0249347bec10e 100644
--- a/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js
+++ b/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js
@@ -41,6 +41,20 @@ var b: { [x: string]: A } = {
 
 //// [stringIndexerConstrainsPropertyDeclarations2.js]
 // String indexer providing a constraint of a user defined type
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -55,6 +69,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { return ''; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -63,6 +78,7 @@ var B = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     B.prototype.bar = function () { return ''; };
+    __names(B.prototype, ["bar"]);
     return B;
 }(A));
 var Foo = (function () {
diff --git a/tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js b/tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js
index 55ea133577104..631125fc5bd32 100644
--- a/tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js
+++ b/tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js
@@ -102,6 +102,20 @@ function f16<T extends String, U extends T>(x: any) { }
 
 //// [stringLiteralTypeIsSubtypeOfString.js]
 // string literal types are subtypes of string, any
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f1(x) { }
 function f2(x) { }
 function f3(x) { }
@@ -140,6 +154,7 @@ var C = (function () {
     C.prototype.trim = function () { return null; };
     C.prototype.substr = function (from, length) { return null; };
     C.prototype.valueOf = function () { return null; };
+    __names(C.prototype, ["toString", "charAt", "charCodeAt", "concat", "indexOf", "lastIndexOf", "localeCompare", "match", "replace", "search", "slice", "split", "substring", "toLowerCase", "toLocaleLowerCase", "toUpperCase", "toLocaleUpperCase", "trim", "substr", "valueOf"]);
     return C;
 }());
 function f10(x) { }
diff --git a/tests/baselines/reference/stringLiteralTypesInImplementationSignatures.js b/tests/baselines/reference/stringLiteralTypesInImplementationSignatures.js
index e9bdc90ecf33b..6466462e31576 100644
--- a/tests/baselines/reference/stringLiteralTypesInImplementationSignatures.js
+++ b/tests/baselines/reference/stringLiteralTypesInImplementationSignatures.js
@@ -28,6 +28,20 @@ var b = {
 
 //// [stringLiteralTypesInImplementationSignatures.js]
 // String literal types are only valid in overload signatures
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x) { }
 var f = function foo(x) { };
 var f2 = function (x, y) { };
@@ -35,6 +49,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/stringLiteralTypesInImplementationSignatures2.js b/tests/baselines/reference/stringLiteralTypesInImplementationSignatures2.js
index a33c6424eda6c..fafc023318a90 100644
--- a/tests/baselines/reference/stringLiteralTypesInImplementationSignatures2.js
+++ b/tests/baselines/reference/stringLiteralTypesInImplementationSignatures2.js
@@ -31,11 +31,26 @@ var b = {
 
 //// [stringLiteralTypesInImplementationSignatures2.js]
 // String literal types are only valid in overload signatures
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(x) { }
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function (x) { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var a;
diff --git a/tests/baselines/reference/stripInternal1.js b/tests/baselines/reference/stripInternal1.js
index 475904906f01e..0fc8639ce0c36 100644
--- a/tests/baselines/reference/stripInternal1.js
+++ b/tests/baselines/reference/stripInternal1.js
@@ -6,12 +6,27 @@ class C {
 }
 
 //// [stripInternal1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.foo = function () { };
     // @internal
     C.prototype.bar = function () { };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }());
 
diff --git a/tests/baselines/reference/super.js b/tests/baselines/reference/super.js
index 3dd0e9ed538be..c5629befb7265 100644
--- a/tests/baselines/reference/super.js
+++ b/tests/baselines/reference/super.js
@@ -38,6 +38,20 @@ s.foo() + ss.foo();
 
 
 //// [super.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -58,6 +72,7 @@ var Base = (function () {
     Base.prototype.bar = function () {
         return "basebar";
     };
+    __names(Base.prototype, ["foo", "bar"]);
     return Base;
 }());
 var Sub1 = (function (_super) {
@@ -68,6 +83,7 @@ var Sub1 = (function (_super) {
     Sub1.prototype.foo = function () {
         return "sub1" + _super.prototype.foo.call(this) + _super.prototype.bar.call(this);
     };
+    __names(Sub1.prototype, ["foo"]);
     return Sub1;
 }(Base));
 var SubSub1 = (function (_super) {
@@ -78,6 +94,7 @@ var SubSub1 = (function (_super) {
     SubSub1.prototype.foo = function () {
         return "subsub1" + _super.prototype.foo.call(this);
     };
+    __names(SubSub1.prototype, ["foo"]);
     return SubSub1;
 }(Sub1));
 var Base2 = (function () {
@@ -86,6 +103,7 @@ var Base2 = (function () {
     Base2.prototype.foo = function () {
         _super.prototype.foo.call(this);
     };
+    __names(Base2.prototype, ["foo"]);
     return Base2;
 }());
 var s = new Sub1();
diff --git a/tests/baselines/reference/super1.js b/tests/baselines/reference/super1.js
index 1ed0edbe0512d..7656e700e0c84 100644
--- a/tests/baselines/reference/super1.js
+++ b/tests/baselines/reference/super1.js
@@ -67,6 +67,20 @@ module Base4 {
 
 
 //// [super1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -84,6 +98,7 @@ var Base1 = (function () {
     Base1.prototype.foo = function () {
         return "base";
     };
+    __names(Base1.prototype, ["foo"]);
     return Base1;
 }());
 var Sub1 = (function (_super) {
@@ -94,6 +109,7 @@ var Sub1 = (function (_super) {
     Sub1.prototype.bar = function () {
         return "base";
     };
+    __names(Sub1.prototype, ["bar"]);
     return Sub1;
 }(Base1));
 var SubSub1 = (function (_super) {
@@ -104,6 +120,7 @@ var SubSub1 = (function (_super) {
     SubSub1.prototype.bar = function () {
         return _super.prototype["super"].foo;
     };
+    __names(SubSub1.prototype, ["bar"]);
     return SubSub1;
 }(Sub1));
 // Case 2
@@ -113,6 +130,7 @@ var Base2 = (function () {
     Base2.prototype.foo = function () {
         return "base";
     };
+    __names(Base2.prototype, ["foo"]);
     return Base2;
 }());
 var SubE2 = (function (_super) {
@@ -123,6 +141,7 @@ var SubE2 = (function (_super) {
     SubE2.prototype.bar = function () {
         return _super.prototype.prototype.foo = null;
     };
+    __names(SubE2.prototype, ["bar"]);
     return SubE2;
 }(Base2));
 // Case 3
@@ -132,6 +151,7 @@ var Base3 = (function () {
     Base3.prototype.foo = function () {
         return "base";
     };
+    __names(Base3.prototype, ["foo"]);
     return Base3;
 }());
 var SubE3 = (function (_super) {
@@ -142,6 +162,7 @@ var SubE3 = (function (_super) {
     SubE3.prototype.bar = function () {
         return _super.prototype.bar.call(this);
     };
+    __names(SubE3.prototype, ["bar"]);
     return SubE3;
 }(Base3));
 // Case 4
@@ -153,6 +174,7 @@ var Base4;
         Sub4.prototype.x = function () {
             return "hello";
         };
+        __names(Sub4.prototype, ["x"]);
         return Sub4;
     }());
     var SubSub4 = (function (_super) {
@@ -163,6 +185,7 @@ var Base4;
         SubSub4.prototype.x = function () {
             return _super.prototype.x.call(this);
         };
+        __names(SubSub4.prototype, ["x"]);
         return SubSub4;
     }(Sub4));
     Base4.SubSub4 = SubSub4;
@@ -172,6 +195,7 @@ var Base4;
         Sub4E.prototype.x = function () {
             return _super.prototype.x.call(this);
         };
+        __names(Sub4E.prototype, ["x"]);
         return Sub4E;
     }());
     Base4.Sub4E = Sub4E;
diff --git a/tests/baselines/reference/super2.js b/tests/baselines/reference/super2.js
index 0f2101bc4dd34..25b44e1168e30 100644
--- a/tests/baselines/reference/super2.js
+++ b/tests/baselines/reference/super2.js
@@ -51,6 +51,20 @@ results1.x() + results1.y() + results2.y();
 
 
 //// [super2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -71,6 +85,7 @@ var Base5 = (function () {
     Base5.prototype.y = function () {
         return "BaseY";
     };
+    __names(Base5.prototype, ["x", "y"]);
     return Base5;
 }());
 var Sub5 = (function (_super) {
@@ -81,6 +96,7 @@ var Sub5 = (function (_super) {
     Sub5.prototype.x = function () {
         return "SubX";
     };
+    __names(Sub5.prototype, ["x"]);
     return Sub5;
 }(Base5));
 var SubSub5 = (function (_super) {
@@ -94,6 +110,7 @@ var SubSub5 = (function (_super) {
     SubSub5.prototype.y = function () {
         return _super.prototype.y.call(this);
     };
+    __names(SubSub5.prototype, ["x", "y"]);
     return SubSub5;
 }(Sub5));
 // Case 6
@@ -103,6 +120,7 @@ var Base6 = (function () {
     Base6.prototype.x = function () {
         return "BaseX";
     };
+    __names(Base6.prototype, ["x"]);
     return Base6;
 }());
 var Sub6 = (function (_super) {
@@ -113,6 +131,7 @@ var Sub6 = (function (_super) {
     Sub6.prototype.y = function () {
         return "SubY";
     };
+    __names(Sub6.prototype, ["y"]);
     return Sub6;
 }(Base6));
 var SubSub6 = (function (_super) {
@@ -123,6 +142,7 @@ var SubSub6 = (function (_super) {
     SubSub6.prototype.y = function () {
         return _super.prototype.y.call(this);
     };
+    __names(SubSub6.prototype, ["y"]);
     return SubSub6;
 }(Sub6));
 var results1 = new SubSub5();
diff --git a/tests/baselines/reference/superAccess.js b/tests/baselines/reference/superAccess.js
index aac0025961359..66b80b1ca3a87 100644
--- a/tests/baselines/reference/superAccess.js
+++ b/tests/baselines/reference/superAccess.js
@@ -24,6 +24,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var MyBase = (function () {
     function MyBase() {
         this.S2 = "test";
@@ -42,5 +56,6 @@ var MyDerived = (function (_super) {
         var l4 = _super.prototype.S2; // Expected => Error: Only public instance methods of the base class are accessible via the 'super' keyword
         var l5 = _super.prototype.f.call(this); // Expected => Error: Only public instance methods of the base class are accessible via the 'super' keyword
     };
+    __names(MyDerived.prototype, ["foo"]);
     return MyDerived;
 }(MyBase));
diff --git a/tests/baselines/reference/superAccess2.js b/tests/baselines/reference/superAccess2.js
index 9fa848dbf6a6f..9441d85d1a99f 100644
--- a/tests/baselines/reference/superAccess2.js
+++ b/tests/baselines/reference/superAccess2.js
@@ -25,6 +25,20 @@ class Q extends P {
 }
 
 //// [superAccess2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -40,6 +54,7 @@ var P = (function () {
     }
     P.prototype.x = function () { };
     P.y = function () { };
+    __names(P.prototype, ["x"]);
     return P;
 }());
 var Q = (function (_super) {
@@ -64,6 +79,7 @@ var Q = (function (_super) {
         _super.x.call(this); // error
         _super.y.call(this);
     };
+    __names(Q.prototype, ["foo"]);
     Q.yy = _super.; // error for static initializer accessing super
     return Q;
 }(P));
diff --git a/tests/baselines/reference/superAccessInFatArrow1.js b/tests/baselines/reference/superAccessInFatArrow1.js
index ebbf9ccf8d23a..e5a8723f4e550 100644
--- a/tests/baselines/reference/superAccessInFatArrow1.js
+++ b/tests/baselines/reference/superAccessInFatArrow1.js
@@ -16,6 +16,20 @@ module test {
 }
 
 //// [superAccessInFatArrow1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -33,6 +47,7 @@ var test;
         }
         A.prototype.foo = function () {
         };
+        __names(A.prototype, ["foo"]);
         return A;
     }());
     test.A = A;
@@ -49,6 +64,7 @@ var test;
                 _super.prototype.foo.call(_this);
             });
         };
+        __names(B.prototype, ["bar", "runme"]);
         return B;
     }(A));
     test.B = B;
diff --git a/tests/baselines/reference/superCallInNonStaticMethod.js b/tests/baselines/reference/superCallInNonStaticMethod.js
index 056dda2bf3392..80ce1ac9bb2b5 100644
--- a/tests/baselines/reference/superCallInNonStaticMethod.js
+++ b/tests/baselines/reference/superCallInNonStaticMethod.js
@@ -51,6 +51,20 @@ class Other extends Doing {
 
 
 //// [superCallInNonStaticMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -66,6 +80,7 @@ var Doing = (function () {
     }
     Doing.prototype.instanceMethod = function () {
     };
+    __names(Doing.prototype, ["instanceMethod"]);
     return Doing;
 }());
 var Other = (function (_super) {
@@ -111,5 +126,6 @@ var Other = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(Other.prototype, ["instanceMethod", "lambdaInsideAnInstanceMethod", "objectLiteralInsideAnInstanceMethod"]);
     return Other;
 }(Doing));
diff --git a/tests/baselines/reference/superCallInsideObjectLiteralExpression.js b/tests/baselines/reference/superCallInsideObjectLiteralExpression.js
index 541539d39aca2..445bb3ce8ef93 100644
--- a/tests/baselines/reference/superCallInsideObjectLiteralExpression.js
+++ b/tests/baselines/reference/superCallInsideObjectLiteralExpression.js
@@ -13,6 +13,20 @@ class B extends A {
 }
 
 //// [superCallInsideObjectLiteralExpression.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -28,6 +42,7 @@ var A = (function () {
     }
     A.prototype.foo = function () {
     };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
diff --git a/tests/baselines/reference/superCallOutsideConstructor.js b/tests/baselines/reference/superCallOutsideConstructor.js
index 60e9411d4142d..f763863cce525 100644
--- a/tests/baselines/reference/superCallOutsideConstructor.js
+++ b/tests/baselines/reference/superCallOutsideConstructor.js
@@ -23,6 +23,20 @@ var d = new D();
 
 
 //// [superCallOutsideConstructor.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -37,6 +51,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function (_super) {
diff --git a/tests/baselines/reference/superCallParameterContextualTyping3.js b/tests/baselines/reference/superCallParameterContextualTyping3.js
index c955f210779ba..c2dd9d3724e8b 100644
--- a/tests/baselines/reference/superCallParameterContextualTyping3.js
+++ b/tests/baselines/reference/superCallParameterContextualTyping3.js
@@ -32,6 +32,20 @@ class C extends CBase<string> {
 }
 
 //// [superCallParameterContextualTyping3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -47,6 +61,7 @@ var CBase = (function () {
     }
     CBase.prototype.foo = function (param) {
     };
+    __names(CBase.prototype, ["foo"]);
     return CBase;
 }());
 var C = (function (_super) {
diff --git a/tests/baselines/reference/superCallWithMissingBaseClass.js b/tests/baselines/reference/superCallWithMissingBaseClass.js
index 71c408f6df84b..14bcaaa039e45 100644
--- a/tests/baselines/reference/superCallWithMissingBaseClass.js
+++ b/tests/baselines/reference/superCallWithMissingBaseClass.js
@@ -20,6 +20,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function (_super) {
     __extends(Foo, _super);
     function Foo() {
@@ -31,5 +45,6 @@ var Foo = (function (_super) {
     Foo.m2 = function () {
         return _super.m2.call(this);
     };
+    __names(Foo.prototype, ["m1"]);
     return Foo;
 }(Bar));
diff --git a/tests/baselines/reference/superCallsInConstructor.js b/tests/baselines/reference/superCallsInConstructor.js
index b5d653dc34f57..df1ecf4774084 100644
--- a/tests/baselines/reference/superCallsInConstructor.js
+++ b/tests/baselines/reference/superCallsInConstructor.js
@@ -21,6 +21,20 @@ class Derived extends Base {
 }
 
 //// [superCallsInConstructor.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -36,6 +50,7 @@ var C = (function () {
     }
     C.prototype.foo = function () { };
     C.prototype.bar = function () { };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }());
 var Base = (function () {
diff --git a/tests/baselines/reference/superErrors.js b/tests/baselines/reference/superErrors.js
index cf7edc83a63a2..a7d89bfccd65f 100644
--- a/tests/baselines/reference/superErrors.js
+++ b/tests/baselines/reference/superErrors.js
@@ -52,6 +52,20 @@ class RegisteredUser extends User {
 }
 
 //// [superErrors.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -76,6 +90,7 @@ var User = (function () {
     User.prototype.sayHello = function () {
         //console.log("Hello, " + this.name);
     };
+    __names(User.prototype, ["sayHello"]);
     return User;
 }());
 var RegisteredUser = (function (_super) {
@@ -120,5 +135,6 @@ var RegisteredUser = (function (_super) {
         var x = function () { return _super.; };
         var y = function () { return function () { return function () { return _super.; }; }; };
     };
+    __names(RegisteredUser.prototype, ["sayHello"]);
     return RegisteredUser;
 }(User));
diff --git a/tests/baselines/reference/superHasMethodsFromMergedInterface.js b/tests/baselines/reference/superHasMethodsFromMergedInterface.js
index e7086106210cd..48000c9c3ea39 100644
--- a/tests/baselines/reference/superHasMethodsFromMergedInterface.js
+++ b/tests/baselines/reference/superHasMethodsFromMergedInterface.js
@@ -9,6 +9,20 @@ class Sub extends C {
 
 
 //// [superHasMethodsFromMergedInterface.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -23,6 +37,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.m1 = function () { };
+    __names(C.prototype, ["m1"]);
     return C;
 }());
 var Sub = (function (_super) {
@@ -33,5 +48,6 @@ var Sub = (function (_super) {
     Sub.prototype.m3 = function () {
         _super.prototype.m2.call(this);
     };
+    __names(Sub.prototype, ["m3"]);
     return Sub;
 }(C));
diff --git a/tests/baselines/reference/superInCatchBlock1.js b/tests/baselines/reference/superInCatchBlock1.js
index 1f7375fe36081..3a83b2a3a78bd 100644
--- a/tests/baselines/reference/superInCatchBlock1.js
+++ b/tests/baselines/reference/superInCatchBlock1.js
@@ -14,6 +14,20 @@ class B extends A {
 
 
 //// [superInCatchBlock1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -28,6 +42,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.m = function () { };
+    __names(A.prototype, ["m"]);
     return A;
 }());
 var B = (function (_super) {
@@ -42,5 +57,6 @@ var B = (function (_super) {
             _super.prototype.m.call(this);
         }
     };
+    __names(B.prototype, ["m"]);
     return B;
 }(A));
diff --git a/tests/baselines/reference/superInConstructorParam1.js b/tests/baselines/reference/superInConstructorParam1.js
index 89f88c43c4a08..c10f37ead7a0f 100644
--- a/tests/baselines/reference/superInConstructorParam1.js
+++ b/tests/baselines/reference/superInConstructorParam1.js
@@ -11,6 +11,20 @@ class C extends B {
 }
 
 //// [superInConstructorParam1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -27,6 +41,7 @@ var B = (function () {
     B.prototype.foo = function () {
         return 0;
     };
+    __names(B.prototype, ["foo"]);
     return B;
 }());
 var C = (function (_super) {
diff --git a/tests/baselines/reference/superInLambdas.js b/tests/baselines/reference/superInLambdas.js
index 83dad0b32515c..f4a6b34dbb3a6 100644
--- a/tests/baselines/reference/superInLambdas.js
+++ b/tests/baselines/reference/superInLambdas.js
@@ -68,6 +68,20 @@ class RegisteredUser4 extends User {
 }
 
 //// [superInLambdas.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -85,6 +99,7 @@ var User = (function () {
     User.prototype.sayHello = function () {
         //console.log("Hello, " + this.name);
     };
+    __names(User.prototype, ["sayHello"]);
     return User;
 }());
 var RegisteredUser = (function (_super) {
@@ -105,6 +120,7 @@ var RegisteredUser = (function (_super) {
         // super call in a lambda in a method
         var x = function () { return _super.prototype.sayHello.call(_this); };
     };
+    __names(RegisteredUser.prototype, ["sayHello"]);
     return RegisteredUser;
 }(User));
 var RegisteredUser2 = (function (_super) {
@@ -121,6 +137,7 @@ var RegisteredUser2 = (function (_super) {
         // super call in a nested lambda in a method
         var x = function () { return function () { return function () { return _super.prototype.sayHello.call(_this); }; }; };
     };
+    __names(RegisteredUser2.prototype, ["sayHello"]);
     return RegisteredUser2;
 }(User));
 var RegisteredUser3 = (function (_super) {
@@ -137,6 +154,7 @@ var RegisteredUser3 = (function (_super) {
         // super property in a nested lambda in a method
         var superName = function () { return function () { return function () { return _super.prototype.name; }; }; };
     };
+    __names(RegisteredUser3.prototype, ["sayHello"]);
     return RegisteredUser3;
 }(User));
 var RegisteredUser4 = (function (_super) {
@@ -153,5 +171,6 @@ var RegisteredUser4 = (function (_super) {
         // super in a nested lambda in a method
         var x = function () { return function () { return _super.prototype.; }; };
     };
+    __names(RegisteredUser4.prototype, ["sayHello"]);
     return RegisteredUser4;
 }(User));
diff --git a/tests/baselines/reference/superInObjectLiterals_ES5.js b/tests/baselines/reference/superInObjectLiterals_ES5.js
index 81d8c09da0d6a..b119eb3c24bf4 100644
--- a/tests/baselines/reference/superInObjectLiterals_ES5.js
+++ b/tests/baselines/reference/superInObjectLiterals_ES5.js
@@ -60,6 +60,20 @@ class B extends A {
 }
 
 //// [superInObjectLiterals_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -100,6 +114,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.method = function () { };
+    __names(A.prototype, ["method"]);
     return A;
 }());
 var B = (function (_super) {
@@ -135,5 +150,6 @@ var B = (function (_super) {
             }
         };
     };
+    __names(B.prototype, ["f"]);
     return B;
 }(A));
diff --git a/tests/baselines/reference/superPropertyAccess.js b/tests/baselines/reference/superPropertyAccess.js
index d84bb5c08b829..8052972f2dfef 100644
--- a/tests/baselines/reference/superPropertyAccess.js
+++ b/tests/baselines/reference/superPropertyAccess.js
@@ -36,6 +36,20 @@ class MyDerived extends MyBase {
 }
 
 //// [superPropertyAccess.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -60,6 +74,7 @@ var MyBase = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(MyBase.prototype, ["m1", "p1"]);
     return MyBase;
 }());
 var MyDerived = (function (_super) {
@@ -79,5 +94,6 @@ var MyDerived = (function (_super) {
         _super.prototype.value = 0; // Should error, instance data property not a public instance member function
         var z = _super.prototype.value; // Should error, instance data property not a public instance member function
     };
+    __names(MyDerived.prototype, ["foo"]);
     return MyDerived;
 }(MyBase));
diff --git a/tests/baselines/reference/superPropertyAccess1.js b/tests/baselines/reference/superPropertyAccess1.js
index 8779dd7069b36..95e17ab56f49f 100644
--- a/tests/baselines/reference/superPropertyAccess1.js
+++ b/tests/baselines/reference/superPropertyAccess1.js
@@ -28,6 +28,20 @@ class D extends C {
 }
 
 //// [superPropertyAccess1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -50,6 +64,7 @@ var C = (function () {
         configurable: true
     });
     C.prototype.bar = function () { };
+    __names(C.prototype, ["foo", "bar"]);
     return C;
 }());
 var D = (function (_super) {
@@ -73,5 +88,6 @@ var D = (function (_super) {
         enumerable: true,
         configurable: true
     });
+    __names(D.prototype, ["foo"]);
     return D;
 }(C));
diff --git a/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js b/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js
index cf256fa91eca4..f363957bd7ccb 100644
--- a/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js
+++ b/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js
@@ -15,6 +15,20 @@ class B extends A {
 }
 
 //// [superPropertyAccessInComputedPropertiesOfNestedType_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -29,6 +43,7 @@ var A = (function () {
     function A() {
     }
     A.prototype.foo = function () { return 1; };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
 var B = (function (_super) {
@@ -41,11 +56,14 @@ var B = (function (_super) {
         return (function () {
             function class_1() {
             }
-            class_1.prototype[_super.prototype.foo.call(this)] = function () {
+            class_1.prototype[_a = _super.prototype.foo.call(this)] = function () {
                 return 100;
             };
+            __names(class_1.prototype, [_a]);
             return class_1;
+            var _a;
         }());
     };
+    __names(B.prototype, ["foo", "bar"]);
     return B;
 }(A));
diff --git a/tests/baselines/reference/superPropertyAccessInSuperCall01.js b/tests/baselines/reference/superPropertyAccessInSuperCall01.js
index d5800323de250..de1e4944148b8 100644
--- a/tests/baselines/reference/superPropertyAccessInSuperCall01.js
+++ b/tests/baselines/reference/superPropertyAccessInSuperCall01.js
@@ -12,6 +12,20 @@ class B extends A {
 }
 
 //// [superPropertyAccessInSuperCall01.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -26,6 +40,7 @@ var A = (function () {
     function A(f) {
     }
     A.prototype.blah = function () { return ""; };
+    __names(A.prototype, ["blah"]);
     return A;
 }());
 var B = (function (_super) {
diff --git a/tests/baselines/reference/superPropertyAccessNoError.js b/tests/baselines/reference/superPropertyAccessNoError.js
index d2e3d7aad4148..c9db138649378 100644
--- a/tests/baselines/reference/superPropertyAccessNoError.js
+++ b/tests/baselines/reference/superPropertyAccessNoError.js
@@ -77,6 +77,20 @@ instance.returnThis().fn();
 //super.publicInstanceMemberFunction in lambda in member function
 //super.publicStaticMemberFunction in static member function of derived class
 //super.publicStaticMemberFunction in static member accessor(get and set) of derived class
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -99,6 +113,7 @@ var SomeBaseClass = (function () {
     SomeBaseClass.prototype.returnThis = function () {
         return this;
     };
+    __names(SomeBaseClass.prototype, ["func", "returnThis"]);
     return SomeBaseClass;
 }());
 var SomeDerivedClass = (function (_super) {
@@ -148,6 +163,7 @@ var SomeDerivedClass = (function (_super) {
     SomeDerivedClass.prototype.returnThis = function () {
         return _super.prototype.returnThis.call(this);
     };
+    __names(SomeDerivedClass.prototype, ["fn", "returnThis"]);
     return SomeDerivedClass;
 }(SomeBaseClass));
 var instance = new SomeDerivedClass();
diff --git a/tests/baselines/reference/superPropertyAccess_ES5.js b/tests/baselines/reference/superPropertyAccess_ES5.js
index 406fa087a4440..f2ea444cc171e 100644
--- a/tests/baselines/reference/superPropertyAccess_ES5.js
+++ b/tests/baselines/reference/superPropertyAccess_ES5.js
@@ -29,6 +29,20 @@ class B extends A {
 }
 
 //// [superPropertyAccess_ES5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -48,6 +62,7 @@ var MyBase = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(MyBase.prototype, ["getValue"]);
     return MyBase;
 }());
 var MyDerived = (function (_super) {
diff --git a/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js b/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js
index eb698f1ae7e1a..88bae4ed47921 100644
--- a/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js
+++ b/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js
@@ -16,6 +16,20 @@ class C2 extends B {
 }
 
 //// [superPropertyInConstructorBeforeSuperCall.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -30,6 +44,7 @@ var B = (function () {
     function B(x) {
     }
     B.prototype.x = function () { return ""; };
+    __names(B.prototype, ["x"]);
     return B;
 }());
 var C1 = (function (_super) {
diff --git a/tests/baselines/reference/superSymbolIndexedAccess5.js b/tests/baselines/reference/superSymbolIndexedAccess5.js
index 5820c56504d45..ee769255d357c 100644
--- a/tests/baselines/reference/superSymbolIndexedAccess5.js
+++ b/tests/baselines/reference/superSymbolIndexedAccess5.js
@@ -14,6 +14,20 @@ class Bar extends Foo {
 }
 
 //// [superSymbolIndexedAccess5.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -28,18 +42,22 @@ var symbol;
 var Foo = (function () {
     function Foo() {
     }
-    Foo.prototype[symbol] = function () {
+    Foo.prototype[_a = symbol] = function () {
         return 0;
     };
+    __names(Foo.prototype, [_a]);
     return Foo;
+    var _a;
 }());
 var Bar = (function (_super) {
     __extends(Bar, _super);
     function Bar() {
         return _super !== null && _super.apply(this, arguments) || this;
     }
-    Bar.prototype[symbol] = function () {
+    Bar.prototype[_a = symbol] = function () {
         return _super.prototype[symbol].call(this);
     };
+    __names(Bar.prototype, [_a]);
     return Bar;
+    var _a;
 }(Foo));
diff --git a/tests/baselines/reference/superWithTypeArgument3.js b/tests/baselines/reference/superWithTypeArgument3.js
index d5c61d54fb65a..490f144a01e77 100644
--- a/tests/baselines/reference/superWithTypeArgument3.js
+++ b/tests/baselines/reference/superWithTypeArgument3.js
@@ -14,6 +14,20 @@ class D<T> extends C<T> {
 }
 
 //// [superWithTypeArgument3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -28,6 +42,7 @@ var C = (function () {
     function C() {
     }
     C.prototype.bar = function (x) { };
+    __names(C.prototype, ["bar"]);
     return C;
 }());
 var D = (function (_super) {
@@ -40,5 +55,6 @@ var D = (function (_super) {
     D.prototype.bar = function () {
         _super.prototype.bar.call(this, null);
     };
+    __names(D.prototype, ["bar"]);
     return D;
 }(C));
diff --git a/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js b/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js
index 140f8258669b1..85cbdbedce3d3 100644
--- a/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js
+++ b/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js
@@ -28,6 +28,20 @@ class SuperObjectTest extends F {
 
 
 //// [super_inside-object-literal-getters-and-setters.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -57,6 +71,7 @@ var F = (function () {
     function F() {
     }
     F.prototype.test = function () { return ""; };
+    __names(F.prototype, ["test"]);
     return F;
 }());
 var SuperObjectTest = (function (_super) {
@@ -71,5 +86,6 @@ var SuperObjectTest = (function (_super) {
             }
         };
     };
+    __names(SuperObjectTest.prototype, ["testing"]);
     return SuperObjectTest;
 }(F));
diff --git a/tests/baselines/reference/thisBinding.js b/tests/baselines/reference/thisBinding.js
index d8d7f5b7c0a32..7bcbf25952451 100644
--- a/tests/baselines/reference/thisBinding.js
+++ b/tests/baselines/reference/thisBinding.js
@@ -22,6 +22,20 @@ class C {
 }
 
 //// [thisBinding.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var C = (function () {
@@ -33,6 +47,7 @@ var M;
             x.e; // e not found
             x.z; // ok 
         };
+        __names(C.prototype, ["f"]);
         return C;
     }());
     M.C = C;
@@ -42,5 +57,6 @@ var C = (function () {
     }
     C.prototype.f = function (x) {
     };
+    __names(C.prototype, ["f"]);
     return C;
 }());
diff --git a/tests/baselines/reference/thisCapture1.js b/tests/baselines/reference/thisCapture1.js
index 8ee3fa2fddcf6..28ead6d784b9c 100644
--- a/tests/baselines/reference/thisCapture1.js
+++ b/tests/baselines/reference/thisCapture1.js
@@ -10,6 +10,20 @@ class X {
 }
 
 //// [thisCapture1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var X = (function () {
     function X() {
         this.y = 0;
@@ -21,5 +35,6 @@ var X = (function () {
             _this.y = 0;
         }).promise();
     };
+    __names(X.prototype, ["getSettings"]);
     return X;
 }());
diff --git a/tests/baselines/reference/thisExpressionInCallExpressionWithTypeArguments.js b/tests/baselines/reference/thisExpressionInCallExpressionWithTypeArguments.js
index 9aea88edf4678..dc73d9f86ab1d 100644
--- a/tests/baselines/reference/thisExpressionInCallExpressionWithTypeArguments.js
+++ b/tests/baselines/reference/thisExpressionInCallExpressionWithTypeArguments.js
@@ -5,6 +5,20 @@ class C {
 
 
 //// [thisExpressionInCallExpressionWithTypeArguments.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -12,5 +26,6 @@ var C = (function () {
         var _this = this;
         [1, 2, 3].map(function (x) { return _this; });
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
diff --git a/tests/baselines/reference/thisInConstructorParameter2.js b/tests/baselines/reference/thisInConstructorParameter2.js
index 7260ecafcb98c..2a3008427bb2f 100644
--- a/tests/baselines/reference/thisInConstructorParameter2.js
+++ b/tests/baselines/reference/thisInConstructorParameter2.js
@@ -10,6 +10,20 @@ class P {
 }
 
 //// [thisInConstructorParameter2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var P = (function () {
     function P(z, zz) {
         if (z === void 0) { z = this; }
@@ -25,6 +39,7 @@ var P = (function () {
         if (zz === void 0) { zz = this; }
         zz.y;
     };
+    __names(P.prototype, ["foo"]);
     P.y = this;
     return P;
 }());
diff --git a/tests/baselines/reference/thisInInnerFunctions.js b/tests/baselines/reference/thisInInnerFunctions.js
index ec8a387bd1b05..82938dda9ea94 100644
--- a/tests/baselines/reference/thisInInnerFunctions.js
+++ b/tests/baselines/reference/thisInInnerFunctions.js
@@ -18,6 +18,20 @@ function test() {
 
 
 //// [thisInInnerFunctions.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
         this.x = "hello";
@@ -29,6 +43,7 @@ var Foo = (function () {
             var f = function () { return _this.y; }; // 'this' should be not type to 'Foo' either
         }
     };
+    __names(Foo.prototype, ["bar"]);
     return Foo;
 }());
 function test() {
diff --git a/tests/baselines/reference/thisInLambda.js b/tests/baselines/reference/thisInLambda.js
index b121947ce9b95..a583db3b75a03 100644
--- a/tests/baselines/reference/thisInLambda.js
+++ b/tests/baselines/reference/thisInLambda.js
@@ -19,6 +19,20 @@ class myCls {
 }
 
 //// [thisInLambda.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
         this.x = "hello";
@@ -28,6 +42,7 @@ var Foo = (function () {
         this.x; // 'this' is type 'Foo'
         var f = function () { return _this.x; }; // 'this' should be type 'Foo' as well
     };
+    __names(Foo.prototype, ["bar"]);
     return Foo;
 }());
 function myFn(a) { }
diff --git a/tests/baselines/reference/thisInObjectLiterals.js b/tests/baselines/reference/thisInObjectLiterals.js
index 6331f12105d91..eb36655dfa3f6 100644
--- a/tests/baselines/reference/thisInObjectLiterals.js
+++ b/tests/baselines/reference/thisInObjectLiterals.js
@@ -20,6 +20,20 @@ var obj: { f: () => any; };
 
 
 //// [thisInObjectLiterals.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var MyClass = (function () {
     function MyClass() {
     }
@@ -28,6 +42,7 @@ var MyClass = (function () {
         var t = { x: this, y: this.t };
         var t;
     };
+    __names(MyClass.prototype, ["fn"]);
     return MyClass;
 }());
 //type of 'this' in an object literal method is the type of the object literal
diff --git a/tests/baselines/reference/thisInOuterClassBody.js b/tests/baselines/reference/thisInOuterClassBody.js
index 40e4a2e2485da..e1ee4a2ce37a0 100644
--- a/tests/baselines/reference/thisInOuterClassBody.js
+++ b/tests/baselines/reference/thisInOuterClassBody.js
@@ -21,6 +21,20 @@ class Foo {
 }
 
 //// [thisInOuterClassBody.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
         this.x = this;
@@ -36,6 +50,7 @@ var Foo = (function () {
         var a = this.y;
         var b = this.x;
     };
+    __names(Foo.prototype, ["bar"]);
     Foo.y = this;
     return Foo;
 }());
diff --git a/tests/baselines/reference/thisInPropertyBoundDeclarations.js b/tests/baselines/reference/thisInPropertyBoundDeclarations.js
index 0b378cec51aaf..374135e76572d 100644
--- a/tests/baselines/reference/thisInPropertyBoundDeclarations.js
+++ b/tests/baselines/reference/thisInPropertyBoundDeclarations.js
@@ -68,12 +68,27 @@ class B {
 }
 
 //// [thisInPropertyBoundDeclarations.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Bug = (function () {
     function Bug() {
     }
     Bug.prototype.foo = function (name) {
         this.name = name;
     };
+    __names(Bug.prototype, ["foo"]);
     Bug.func = [
         function (that, name) {
             that.foo(name);
diff --git a/tests/baselines/reference/thisTypeAndConstraints.js b/tests/baselines/reference/thisTypeAndConstraints.js
index 3800b8bc5e385..aacf3eb1bb3ee 100644
--- a/tests/baselines/reference/thisTypeAndConstraints.js
+++ b/tests/baselines/reference/thisTypeAndConstraints.js
@@ -23,12 +23,27 @@ class B<T extends A> {
 
 
 //// [thisTypeAndConstraints.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.self = function () {
         return this;
     };
+    __names(A.prototype, ["self"]);
     return A;
 }());
 function f(x) {
@@ -46,5 +61,6 @@ var B = (function () {
     B.prototype.bar = function (x) {
         x = x.self();
     };
+    __names(B.prototype, ["foo", "bar"]);
     return B;
 }());
diff --git a/tests/baselines/reference/thisTypeAsConstraint.js b/tests/baselines/reference/thisTypeAsConstraint.js
index b5a7113549dba..c6ce9b283b31c 100644
--- a/tests/baselines/reference/thisTypeAsConstraint.js
+++ b/tests/baselines/reference/thisTypeAsConstraint.js
@@ -5,10 +5,25 @@ class C {
 }
 
 //// [thisTypeAsConstraint.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
     C.prototype.m = function () {
     };
+    __names(C.prototype, ["m"]);
     return C;
 }());
diff --git a/tests/baselines/reference/thisTypeErrors.js b/tests/baselines/reference/thisTypeErrors.js
index f246b80f4f4f6..70d286fa22a6b 100644
--- a/tests/baselines/reference/thisTypeErrors.js
+++ b/tests/baselines/reference/thisTypeErrors.js
@@ -57,6 +57,20 @@ class C3 {
 
 
 //// [thisTypeErrors.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var x1;
 var x2;
 var x3;
@@ -100,5 +114,6 @@ var C3 = (function () {
             }
         };
     };
+    __names(C3.prototype, ["f"]);
     return C3;
 }());
diff --git a/tests/baselines/reference/thisTypeInClasses.js b/tests/baselines/reference/thisTypeInClasses.js
index c6790b3d52d79..0530f3e042066 100644
--- a/tests/baselines/reference/thisTypeInClasses.js
+++ b/tests/baselines/reference/thisTypeInClasses.js
@@ -51,10 +51,25 @@ class C5 {
 
 
 //// [thisTypeInClasses.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C1 = (function () {
     function C1() {
     }
     C1.prototype.f = function (x) { return undefined; };
+    __names(C1.prototype, ["f"]);
     return C1;
 }());
 var C2 = (function () {
@@ -86,5 +101,6 @@ var C5 = (function () {
         var x1 = undefined;
         var x2 = undefined;
     };
+    __names(C5.prototype, ["foo", "bar"]);
     return C5;
 }());
diff --git a/tests/baselines/reference/thisTypeInFunctions.js b/tests/baselines/reference/thisTypeInFunctions.js
index 68513c151d98a..7fff3a3924244 100644
--- a/tests/baselines/reference/thisTypeInFunctions.js
+++ b/tests/baselines/reference/thisTypeInFunctions.js
@@ -195,6 +195,20 @@ function missingTypeIsImplicitAny(this, a: number) { return this.anything + a; }
 
 
 //// [thisTypeInFunctions.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -227,6 +241,7 @@ var C = (function () {
     C.prototype.explicitVoid = function (m) {
         return m + 1;
     };
+    __names(C.prototype, ["explicitThis", "explicitC", "explicitProperty", "explicitVoid"]);
     return C;
 }());
 var D = (function (_super) {
@@ -336,6 +351,7 @@ var Base1 = (function () {
     Base1.prototype.polymorphic = function () { return this.x; };
     Base1.prototype.explicit = function () { return this.x; };
     Base1.explicitStatic = function () { return this.y; };
+    __names(Base1.prototype, ["polymorphic", "explicit"]);
     return Base1;
 }());
 var Derived1 = (function (_super) {
@@ -350,6 +366,7 @@ var Base2 = (function () {
     }
     Base2.prototype.polymorphic = function () { return this.y; };
     Base2.prototype.explicit = function () { return this.x; };
+    __names(Base2.prototype, ["polymorphic", "explicit"]);
     return Base2;
 }());
 var Derived2 = (function (_super) {
diff --git a/tests/baselines/reference/thisTypeInFunctionsNegative.js b/tests/baselines/reference/thisTypeInFunctionsNegative.js
index 4b0e18f9b94e0..209c461c6fab0 100644
--- a/tests/baselines/reference/thisTypeInFunctionsNegative.js
+++ b/tests/baselines/reference/thisTypeInFunctionsNegative.js
@@ -177,6 +177,20 @@ c.explicitProperty = (this, m) => m + this.n;
 
 
 //// [thisTypeInFunctionsNegative.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -206,6 +220,7 @@ var C = (function () {
     C.prototype.explicitVoid = function (m) {
         return this.n + m; // 'n' doesn't exist on type 'void'.
     };
+    __names(C.prototype, ["explicitThis", "implicitThis", "explicitC", "explicitProperty", "explicitVoid"]);
     return C;
 }());
 var D = (function () {
@@ -217,6 +232,7 @@ var D = (function () {
     D.prototype.explicitD = function (m) {
         return this.x + m;
     };
+    __names(D.prototype, ["explicitThis", "explicitD"]);
     return D;
 }());
 var impl = {
@@ -296,6 +312,7 @@ var Base1 = (function () {
     Base1.prototype.polymorphic = function () { return this.x; };
     Base1.prototype.explicit = function () { return this.x; };
     Base1.explicitStatic = function () { return this.x; };
+    __names(Base1.prototype, ["polymorphic", "explicit"]);
     return Base1;
 }());
 var Derived1 = (function (_super) {
@@ -310,6 +327,7 @@ var Base2 = (function () {
     }
     Base2.prototype.polymorphic = function () { return this.y; };
     Base2.prototype.explicit = function () { return this.x; };
+    __names(Base2.prototype, ["polymorphic", "explicit"]);
     return Base2;
 }());
 var Derived2 = (function (_super) {
diff --git a/tests/baselines/reference/thisWhenTypeCheckFails.js b/tests/baselines/reference/thisWhenTypeCheckFails.js
index fee1ef2d61ea7..c066410702a53 100644
--- a/tests/baselines/reference/thisWhenTypeCheckFails.js
+++ b/tests/baselines/reference/thisWhenTypeCheckFails.js
@@ -9,6 +9,20 @@ class c {
 
 
 //// [thisWhenTypeCheckFails.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var c = (function () {
     function c() {
     }
@@ -18,5 +32,6 @@ var c = (function () {
             var s = _this.n();
         };
     };
+    __names(c.prototype, ["n"]);
     return c;
 }());
diff --git a/tests/baselines/reference/throwInEnclosingStatements.js b/tests/baselines/reference/throwInEnclosingStatements.js
index eb4da2e6c4d13..41c0e68e5bdbe 100644
--- a/tests/baselines/reference/throwInEnclosingStatements.js
+++ b/tests/baselines/reference/throwInEnclosingStatements.js
@@ -47,6 +47,20 @@ var aa = {
 
 
 //// [throwInEnclosingStatements.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function fn(x) {
     throw x;
 }
@@ -82,6 +96,7 @@ var C = (function () {
     C.prototype.biz = function () {
         throw this.value;
     };
+    __names(C.prototype, ["biz"]);
     return C;
 }());
 var aa = {
diff --git a/tests/baselines/reference/topLevel.js b/tests/baselines/reference/topLevel.js
index 1908ab8c729cb..8fbafb3ea1351 100644
--- a/tests/baselines/reference/topLevel.js
+++ b/tests/baselines/reference/topLevel.js
@@ -28,6 +28,20 @@ result+=(M.origin.move(1,1));
 
 
 //// [topLevel.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Point = (function () {
     function Point(x, y) {
         this.x = x;
@@ -41,6 +55,7 @@ var Point = (function () {
     Point.prototype.toString = function () {
         return ("(" + this.x + "," + this.y + ")");
     };
+    __names(Point.prototype, ["move", "toString"]);
     return Point;
 }());
 var result = "";
diff --git a/tests/baselines/reference/trailingCommaInHeterogenousArrayLiteral1.js b/tests/baselines/reference/trailingCommaInHeterogenousArrayLiteral1.js
index 8041025f66ab0..fc68add9c5591 100644
--- a/tests/baselines/reference/trailingCommaInHeterogenousArrayLiteral1.js
+++ b/tests/baselines/reference/trailingCommaInHeterogenousArrayLiteral1.js
@@ -10,6 +10,20 @@ class arrTest {
 
 
 //// [trailingCommaInHeterogenousArrayLiteral1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var arrTest = (function () {
     function arrTest() {
     }
@@ -19,5 +33,6 @@ var arrTest = (function () {
         this.test([1, 2, "hi", 5,]);
         this.test([1, 2, "hi", 5]);
     };
+    __names(arrTest.prototype, ["test", "callTest"]);
     return arrTest;
 }());
diff --git a/tests/baselines/reference/tsxAttributeResolution10.js b/tests/baselines/reference/tsxAttributeResolution10.js
index 141743c17bc20..5034708e3c8fd 100644
--- a/tests/baselines/reference/tsxAttributeResolution10.js
+++ b/tests/baselines/reference/tsxAttributeResolution10.js
@@ -31,6 +31,20 @@ export class MyComponent {
 
 
 //// [file.jsx]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -39,6 +53,7 @@ define(["require", "exports"], function (require, exports) {
         }
         MyComponent.prototype.render = function () {
         };
+        __names(MyComponent.prototype, ["render"]);
         return MyComponent;
     }());
     exports.MyComponent = MyComponent;
diff --git a/tests/baselines/reference/tsxAttributeResolution11.js b/tests/baselines/reference/tsxAttributeResolution11.js
index c4d62a7147aa3..fc245ec5d154b 100644
--- a/tests/baselines/reference/tsxAttributeResolution11.js
+++ b/tests/baselines/reference/tsxAttributeResolution11.js
@@ -29,11 +29,26 @@ var x = <MyComponent bar='world' />;
 
 
 //// [file.jsx]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var MyComponent = (function () {
     function MyComponent() {
     }
     MyComponent.prototype.render = function () {
     };
+    __names(MyComponent.prototype, ["render"]);
     return MyComponent;
 }());
 // Should be an OK
diff --git a/tests/baselines/reference/tsxAttributeResolution15.js b/tests/baselines/reference/tsxAttributeResolution15.js
index 0fbc01e6e0fce..10fcb30d5e469 100644
--- a/tests/baselines/reference/tsxAttributeResolution15.js
+++ b/tests/baselines/reference/tsxAttributeResolution15.js
@@ -27,6 +27,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var _this = this;
 exports.__esModule = true;
 var React = require("react");
@@ -38,6 +52,7 @@ var BigGreeter = (function (_super) {
     BigGreeter.prototype.render = function () {
         return <div>Default hi</div>;
     };
+    __names(BigGreeter.prototype, ["render"]);
     return BigGreeter;
 }(React.Component));
 // Error
diff --git a/tests/baselines/reference/tsxAttributeResolution16.js b/tests/baselines/reference/tsxAttributeResolution16.js
index 1c05446b4938e..c1ff322234db7 100644
--- a/tests/baselines/reference/tsxAttributeResolution16.js
+++ b/tests/baselines/reference/tsxAttributeResolution16.js
@@ -36,6 +36,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var AddressComp = (function (_super) {
@@ -46,6 +60,7 @@ var AddressComp = (function (_super) {
     AddressComp.prototype.render = function () {
         return null;
     };
+    __names(AddressComp.prototype, ["render"]);
     return AddressComp;
 }(React.Component));
 exports.AddressComp = AddressComp;
diff --git a/tests/baselines/reference/tsxAttributeResolution9.js b/tests/baselines/reference/tsxAttributeResolution9.js
index a982fea412b1e..106a897f7e22f 100644
--- a/tests/baselines/reference/tsxAttributeResolution9.js
+++ b/tests/baselines/reference/tsxAttributeResolution9.js
@@ -27,6 +27,20 @@ export class MyComponent {
 
 
 //// [file.jsx]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -35,6 +49,7 @@ define(["require", "exports"], function (require, exports) {
         }
         MyComponent.prototype.render = function () {
         };
+        __names(MyComponent.prototype, ["render"]);
         return MyComponent;
     }());
     exports.MyComponent = MyComponent;
diff --git a/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js b/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js
index f6403804fae29..7853187a4b727 100644
--- a/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js
+++ b/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js
@@ -31,6 +31,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var ShortDetails = (function (_super) {
     __extends(ShortDetails, _super);
@@ -42,6 +56,7 @@ var ShortDetails = (function (_super) {
             return (React.createElement("div", null));
         }
     };
+    __names(ShortDetails.prototype, ["render"]);
     return ShortDetails;
 }(React.Component));
 exports.ShortDetails = ShortDetails;
diff --git a/tests/baselines/reference/tsxDefaultAttributesResolution1.js b/tests/baselines/reference/tsxDefaultAttributesResolution1.js
index 8d22db3b69f13..50a09b5e4541d 100644
--- a/tests/baselines/reference/tsxDefaultAttributesResolution1.js
+++ b/tests/baselines/reference/tsxDefaultAttributesResolution1.js
@@ -25,6 +25,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Poisoned = (function (_super) {
@@ -35,6 +49,7 @@ var Poisoned = (function (_super) {
     Poisoned.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(Poisoned.prototype, ["render"]);
     return Poisoned;
 }(React.Component));
 // OK
diff --git a/tests/baselines/reference/tsxDefaultAttributesResolution2.js b/tests/baselines/reference/tsxDefaultAttributesResolution2.js
index 38735169f10a3..23185f7d7ce21 100644
--- a/tests/baselines/reference/tsxDefaultAttributesResolution2.js
+++ b/tests/baselines/reference/tsxDefaultAttributesResolution2.js
@@ -25,6 +25,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Poisoned = (function (_super) {
@@ -35,6 +49,7 @@ var Poisoned = (function (_super) {
     Poisoned.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(Poisoned.prototype, ["render"]);
     return Poisoned;
 }(React.Component));
 // OK
diff --git a/tests/baselines/reference/tsxDefaultAttributesResolution3.js b/tests/baselines/reference/tsxDefaultAttributesResolution3.js
index 14da51516b578..17c6eccf1d920 100644
--- a/tests/baselines/reference/tsxDefaultAttributesResolution3.js
+++ b/tests/baselines/reference/tsxDefaultAttributesResolution3.js
@@ -25,6 +25,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Poisoned = (function (_super) {
@@ -35,6 +49,7 @@ var Poisoned = (function (_super) {
     Poisoned.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(Poisoned.prototype, ["render"]);
     return Poisoned;
 }(React.Component));
 // Error
diff --git a/tests/baselines/reference/tsxDynamicTagName5.js b/tests/baselines/reference/tsxDynamicTagName5.js
index 1aa3650a9632d..73277ae860fb1 100644
--- a/tests/baselines/reference/tsxDynamicTagName5.js
+++ b/tests/baselines/reference/tsxDynamicTagName5.js
@@ -30,6 +30,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Text = (function (_super) {
@@ -42,6 +56,7 @@ var Text = (function (_super) {
     Text.prototype.render = function () {
         return (<this._tagName />);
     };
+    __names(Text.prototype, ["render"]);
     return Text;
 }(React.Component));
 exports.Text = Text;
diff --git a/tests/baselines/reference/tsxDynamicTagName7.js b/tests/baselines/reference/tsxDynamicTagName7.js
index 1bfade5d5da29..7ee5d47e678c9 100644
--- a/tests/baselines/reference/tsxDynamicTagName7.js
+++ b/tests/baselines/reference/tsxDynamicTagName7.js
@@ -30,6 +30,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Text = (function (_super) {
@@ -43,6 +57,7 @@ var Text = (function (_super) {
         return (<this /> // this should be an error
         );
     };
+    __names(Text.prototype, ["render"]);
     return Text;
 }(React.Component));
 exports.Text = Text;
diff --git a/tests/baselines/reference/tsxDynamicTagName8.js b/tests/baselines/reference/tsxDynamicTagName8.js
index 34a587c7d19b3..dcc50ce5e5cbe 100644
--- a/tests/baselines/reference/tsxDynamicTagName8.js
+++ b/tests/baselines/reference/tsxDynamicTagName8.js
@@ -30,6 +30,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Text = (function (_super) {
@@ -42,6 +56,7 @@ var Text = (function (_super) {
     Text.prototype.render = function () {
         return (<this._tagName> Hello world </this._tagName>);
     };
+    __names(Text.prototype, ["render"]);
     return Text;
 }(React.Component));
 exports.Text = Text;
diff --git a/tests/baselines/reference/tsxDynamicTagName9.js b/tests/baselines/reference/tsxDynamicTagName9.js
index e5229f97a39da..be8b8aad683a9 100644
--- a/tests/baselines/reference/tsxDynamicTagName9.js
+++ b/tests/baselines/reference/tsxDynamicTagName9.js
@@ -30,6 +30,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Text = (function (_super) {
@@ -42,6 +56,7 @@ var Text = (function (_super) {
     Text.prototype.render = function () {
         return (<this._tagName> Hello world </this._tagName>);
     };
+    __names(Text.prototype, ["render"]);
     return Text;
 }(React.Component));
 exports.Text = Text;
diff --git a/tests/baselines/reference/tsxEmit1.js b/tests/baselines/reference/tsxEmit1.js
index dacb3ad621ad1..80f380d8231aa 100644
--- a/tests/baselines/reference/tsxEmit1.js
+++ b/tests/baselines/reference/tsxEmit1.js
@@ -41,6 +41,20 @@ var whitespace3 = <div>
 
 
 //// [file.jsx]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var p;
 var selfClosed1 = <div />;
 var selfClosed2 = <div x="1"/>;
@@ -66,6 +80,7 @@ var SomeClass = (function () {
         var rewrites5 = <div a={[p].concat(p, [p])}></div>;
         var rewrites6 = <div a={{ p: p }}></div>;
     };
+    __names(SomeClass.prototype, ["f"]);
     return SomeClass;
 }());
 var whitespace1 = <div>      </div>;
diff --git a/tests/baselines/reference/tsxExternalModuleEmit1.js b/tests/baselines/reference/tsxExternalModuleEmit1.js
index 578d952be983d..ff56aa90b46d0 100644
--- a/tests/baselines/reference/tsxExternalModuleEmit1.js
+++ b/tests/baselines/reference/tsxExternalModuleEmit1.js
@@ -42,6 +42,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Button = (function (_super) {
@@ -52,6 +66,7 @@ var Button = (function (_super) {
     Button.prototype.render = function () {
         return <button>Some button</button>;
     };
+    __names(Button.prototype, ["render"]);
     return Button;
 }(React.Component));
 exports.Button = Button;
@@ -67,6 +82,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 // Should see var button_1 = require('./button') here
@@ -79,6 +108,7 @@ var App = (function (_super) {
     App.prototype.render = function () {
         return <button_1.Button />;
     };
+    __names(App.prototype, ["render"]);
     return App;
 }(React.Component));
 exports.App = App;
diff --git a/tests/baselines/reference/tsxGenericAttributesType3.js b/tests/baselines/reference/tsxGenericAttributesType3.js
index 51491d99aa2a1..0f3c6827e620a 100644
--- a/tests/baselines/reference/tsxGenericAttributesType3.js
+++ b/tests/baselines/reference/tsxGenericAttributesType3.js
@@ -24,6 +24,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var B1 = (function (_super) {
@@ -34,6 +48,7 @@ var B1 = (function (_super) {
     B1.prototype.render = function () {
         return <div>hi</div>;
     };
+    __names(B1.prototype, ["render"]);
     return B1;
 }(React.Component));
 var B = (function (_super) {
@@ -44,5 +59,6 @@ var B = (function (_super) {
     B.prototype.render = function () {
         return <B1 {...this.props} x="hi"/>;
     };
+    __names(B.prototype, ["render"]);
     return B;
 }(React.Component));
diff --git a/tests/baselines/reference/tsxGenericAttributesType4.js b/tests/baselines/reference/tsxGenericAttributesType4.js
index a00d03cd61bf0..7ad79bd550a29 100644
--- a/tests/baselines/reference/tsxGenericAttributesType4.js
+++ b/tests/baselines/reference/tsxGenericAttributesType4.js
@@ -25,6 +25,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var B1 = (function (_super) {
@@ -35,6 +49,7 @@ var B1 = (function (_super) {
     B1.prototype.render = function () {
         return <div>hi</div>;
     };
+    __names(B1.prototype, ["render"]);
     return B1;
 }(React.Component));
 var B = (function (_super) {
@@ -46,5 +61,6 @@ var B = (function (_super) {
         // Should be an ok but as of 2.3.3 this will be an error as we will instantiate B1.props to be empty object
         return <B1 {...this.props} x="hi"/>;
     };
+    __names(B.prototype, ["render"]);
     return B;
 }(React.Component));
diff --git a/tests/baselines/reference/tsxGenericAttributesType5.js b/tests/baselines/reference/tsxGenericAttributesType5.js
index cb535417dd661..d158a5e78df43 100644
--- a/tests/baselines/reference/tsxGenericAttributesType5.js
+++ b/tests/baselines/reference/tsxGenericAttributesType5.js
@@ -26,6 +26,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var B1 = (function (_super) {
@@ -36,6 +50,7 @@ var B1 = (function (_super) {
     B1.prototype.render = function () {
         return <div>hi</div>;
     };
+    __names(B1.prototype, ["render"]);
     return B1;
 }(React.Component));
 var B = (function (_super) {
@@ -47,5 +62,6 @@ var B = (function (_super) {
         // Should be an ok but as of 2.3.3 this will be an error as we will instantiate B1.props to be empty object
         return <B1 {...this.props} x="hi"/>;
     };
+    __names(B.prototype, ["render"]);
     return B;
 }(React.Component));
diff --git a/tests/baselines/reference/tsxGenericAttributesType6.js b/tests/baselines/reference/tsxGenericAttributesType6.js
index 84cab3e1f94b2..0ce7f98eef65c 100644
--- a/tests/baselines/reference/tsxGenericAttributesType6.js
+++ b/tests/baselines/reference/tsxGenericAttributesType6.js
@@ -25,6 +25,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var B1 = (function (_super) {
@@ -35,6 +49,7 @@ var B1 = (function (_super) {
     B1.prototype.render = function () {
         return <div>hi</div>;
     };
+    __names(B1.prototype, ["render"]);
     return B1;
 }(React.Component));
 var B = (function (_super) {
@@ -45,5 +60,6 @@ var B = (function (_super) {
     B.prototype.render = function () {
         return <B1 {...this.props} x="hi"/>;
     };
+    __names(B.prototype, ["render"]);
     return B;
 }(React.Component));
diff --git a/tests/baselines/reference/tsxGenericAttributesType9.js b/tests/baselines/reference/tsxGenericAttributesType9.js
index c53a8de520e52..6a48a6921dd70 100644
--- a/tests/baselines/reference/tsxGenericAttributesType9.js
+++ b/tests/baselines/reference/tsxGenericAttributesType9.js
@@ -25,6 +25,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 function makeP(Ctor) {
@@ -36,6 +50,7 @@ function makeP(Ctor) {
         class_1.prototype.render = function () {
             return (<Ctor {...this.props}/>);
         };
+        __names(class_1.prototype, ["render"]);
         return class_1;
     }(React.PureComponent));
 }
diff --git a/tests/baselines/reference/tsxReactEmit1.js b/tests/baselines/reference/tsxReactEmit1.js
index 20a91b3fe89e0..bce8983aa0db1 100644
--- a/tests/baselines/reference/tsxReactEmit1.js
+++ b/tests/baselines/reference/tsxReactEmit1.js
@@ -42,6 +42,20 @@ var whitespace3 = <div>
 
 
 //// [file.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var p;
 var selfClosed1 = React.createElement("div", null);
 var selfClosed2 = React.createElement("div", { x: "1" });
@@ -67,6 +81,7 @@ var SomeClass = (function () {
         var rewrites5 = React.createElement("div", { a: [p].concat(p, [p]) });
         var rewrites6 = React.createElement("div", { a: { p: p } });
     };
+    __names(SomeClass.prototype, ["f"]);
     return SomeClass;
 }());
 var whitespace1 = React.createElement("div", null, "      ");
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution1.js b/tests/baselines/reference/tsxSpreadAttributesResolution1.js
index 7d83e9bd39067..1dea3ceacfb9a 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution1.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution1.js
@@ -26,6 +26,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Poisoned = (function (_super) {
@@ -36,6 +50,7 @@ var Poisoned = (function (_super) {
     Poisoned.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(Poisoned.prototype, ["render"]);
     return Poisoned;
 }(React.Component));
 var obj = {};
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution10.js b/tests/baselines/reference/tsxSpreadAttributesResolution10.js
index f8d56f608de9f..c6c6efc56d7a1 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution10.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution10.js
@@ -35,6 +35,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Opt = (function (_super) {
@@ -45,6 +59,7 @@ var Opt = (function (_super) {
     Opt.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(Opt.prototype, ["render"]);
     return Opt;
 }(React.Component));
 var obj = {};
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution11.js b/tests/baselines/reference/tsxSpreadAttributesResolution11.js
index 44e2dcd529211..3097f21e76113 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution11.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution11.js
@@ -43,6 +43,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var obj = {};
@@ -61,6 +75,7 @@ var OverWriteAttr = (function (_super) {
     OverWriteAttr.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(OverWriteAttr.prototype, ["render"]);
     return OverWriteAttr;
 }(React.Component));
 var anyobj;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution12.js b/tests/baselines/reference/tsxSpreadAttributesResolution12.js
index a68755a7592d2..425f9040c6a1a 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution12.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution12.js
@@ -44,6 +44,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var obj = {};
@@ -62,6 +76,7 @@ var OverWriteAttr = (function (_super) {
     OverWriteAttr.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(OverWriteAttr.prototype, ["render"]);
     return OverWriteAttr;
 }(React.Component));
 var anyobj;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution2.js b/tests/baselines/reference/tsxSpreadAttributesResolution2.js
index ad2af27548582..3cea6a2dc8b09 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution2.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution2.js
@@ -33,6 +33,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Poisoned = (function (_super) {
@@ -43,6 +57,7 @@ var Poisoned = (function (_super) {
     Poisoned.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(Poisoned.prototype, ["render"]);
     return Poisoned;
 }(React.Component));
 var obj = {};
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution3.js b/tests/baselines/reference/tsxSpreadAttributesResolution3.js
index e2e0f38da0d51..7ae886eb2eff5 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution3.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution3.js
@@ -33,6 +33,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Poisoned = (function (_super) {
@@ -43,6 +57,7 @@ var Poisoned = (function (_super) {
     Poisoned.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(Poisoned.prototype, ["render"]);
     return Poisoned;
 }(React.Component));
 var obj = {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution4.js b/tests/baselines/reference/tsxSpreadAttributesResolution4.js
index 3ac18a7c21931..8ad239a344022 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution4.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution4.js
@@ -46,6 +46,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var _this = this;
 exports.__esModule = true;
 var React = require("react");
@@ -57,6 +71,7 @@ var Poisoned = (function (_super) {
     Poisoned.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(Poisoned.prototype, ["render"]);
     return Poisoned;
 }(React.Component));
 var obj = {
@@ -73,6 +88,7 @@ var EmptyProp = (function (_super) {
     EmptyProp.prototype.render = function () {
         return <div>Default hi</div>;
     };
+    __names(EmptyProp.prototype, ["render"]);
     return EmptyProp;
 }(React.Component));
 // OK
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution5.js b/tests/baselines/reference/tsxSpreadAttributesResolution5.js
index 192f4b78770bd..9228b70a2fa5f 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution5.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution5.js
@@ -45,6 +45,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Poisoned = (function (_super) {
@@ -55,6 +69,7 @@ var Poisoned = (function (_super) {
     Poisoned.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(Poisoned.prototype, ["render"]);
     return Poisoned;
 }(React.Component));
 var obj = {
@@ -71,6 +86,7 @@ var EmptyProp = (function (_super) {
     EmptyProp.prototype.render = function () {
         return <div>Default hi</div>;
     };
+    __names(EmptyProp.prototype, ["render"]);
     return EmptyProp;
 }(React.Component));
 var o = {
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution6.js b/tests/baselines/reference/tsxSpreadAttributesResolution6.js
index e6d714a670507..edcd3e64a28fa 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution6.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution6.js
@@ -29,6 +29,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var TextComponent = (function (_super) {
@@ -39,6 +53,7 @@ var TextComponent = (function (_super) {
     TextComponent.prototype.render = function () {
         return <span>Some Text..</span>;
     };
+    __names(TextComponent.prototype, ["render"]);
     return TextComponent;
 }(React.Component));
 // Error
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution7.js b/tests/baselines/reference/tsxSpreadAttributesResolution7.js
index d93e2e80a9242..edcd6645c35b8 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution7.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution7.js
@@ -36,6 +36,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var TextComponent = (function (_super) {
@@ -46,6 +60,7 @@ var TextComponent = (function (_super) {
     TextComponent.prototype.render = function () {
         return <span>Some Text..</span>;
     };
+    __names(TextComponent.prototype, ["render"]);
     return TextComponent;
 }(React.Component));
 // OK
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution8.js b/tests/baselines/reference/tsxSpreadAttributesResolution8.js
index 9b07fa5e903bc..827c07f7eacff 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution8.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution8.js
@@ -38,6 +38,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var obj = {};
@@ -56,6 +70,7 @@ var OverWriteAttr = (function (_super) {
     OverWriteAttr.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(OverWriteAttr.prototype, ["render"]);
     return OverWriteAttr;
 }(React.Component));
 // OK
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution9.js b/tests/baselines/reference/tsxSpreadAttributesResolution9.js
index c7379ab2db1d9..70351631ad688 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution9.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution9.js
@@ -36,6 +36,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var Opt = (function (_super) {
@@ -46,6 +60,7 @@ var Opt = (function (_super) {
     Opt.prototype.render = function () {
         return <div>Hello</div>;
     };
+    __names(Opt.prototype, ["render"]);
     return Opt;
 }(React.Component));
 var obj = {};
diff --git a/tests/baselines/reference/tsxStatelessFunctionComponents2.js b/tests/baselines/reference/tsxStatelessFunctionComponents2.js
index 90112ef1f139a..85ce1dd739ceb 100644
--- a/tests/baselines/reference/tsxStatelessFunctionComponents2.js
+++ b/tests/baselines/reference/tsxStatelessFunctionComponents2.js
@@ -49,6 +49,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 function Greet(x) {
@@ -62,6 +76,7 @@ var BigGreeter = (function (_super) {
     BigGreeter.prototype.render = function () {
         return <div></div>;
     };
+    __names(BigGreeter.prototype, ["render"]);
     return BigGreeter;
 }(React.Component));
 // OK
diff --git a/tests/baselines/reference/tsxUnionElementType3.js b/tests/baselines/reference/tsxUnionElementType3.js
index 7724c9aebae00..db52ef1e7e709 100644
--- a/tests/baselines/reference/tsxUnionElementType3.js
+++ b/tests/baselines/reference/tsxUnionElementType3.js
@@ -48,6 +48,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var RC1 = (function (_super) {
@@ -58,6 +72,7 @@ var RC1 = (function (_super) {
     RC1.prototype.render = function () {
         return null;
     };
+    __names(RC1.prototype, ["render"]);
     return RC1;
 }(React.Component));
 var RC2 = (function (_super) {
@@ -69,6 +84,7 @@ var RC2 = (function (_super) {
         return null;
     };
     RC2.prototype.method = function () { };
+    __names(RC2.prototype, ["render", "method"]);
     return RC2;
 }(React.Component));
 var RC3 = (function (_super) {
@@ -79,6 +95,7 @@ var RC3 = (function (_super) {
     RC3.prototype.render = function () {
         return null;
     };
+    __names(RC3.prototype, ["render"]);
     return RC3;
 }(React.Component));
 var RC4 = (function (_super) {
@@ -89,6 +106,7 @@ var RC4 = (function (_super) {
     RC4.prototype.render = function () {
         return null;
     };
+    __names(RC4.prototype, ["render"]);
     return RC4;
 }(React.Component));
 var EmptyRCComp = RC3 || RC4;
diff --git a/tests/baselines/reference/tsxUnionElementType4.js b/tests/baselines/reference/tsxUnionElementType4.js
index c09dcb522002d..dd98da2fd7662 100644
--- a/tests/baselines/reference/tsxUnionElementType4.js
+++ b/tests/baselines/reference/tsxUnionElementType4.js
@@ -47,6 +47,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var RC1 = (function (_super) {
@@ -57,6 +71,7 @@ var RC1 = (function (_super) {
     RC1.prototype.render = function () {
         return null;
     };
+    __names(RC1.prototype, ["render"]);
     return RC1;
 }(React.Component));
 var RC2 = (function (_super) {
@@ -68,6 +83,7 @@ var RC2 = (function (_super) {
         return null;
     };
     RC2.prototype.method = function () { };
+    __names(RC2.prototype, ["render", "method"]);
     return RC2;
 }(React.Component));
 var RC3 = (function (_super) {
@@ -78,6 +94,7 @@ var RC3 = (function (_super) {
     RC3.prototype.render = function () {
         return null;
     };
+    __names(RC3.prototype, ["render"]);
     return RC3;
 }(React.Component));
 var RC4 = (function (_super) {
@@ -88,6 +105,7 @@ var RC4 = (function (_super) {
     RC4.prototype.render = function () {
         return null;
     };
+    __names(RC4.prototype, ["render"]);
     return RC4;
 }(React.Component));
 var RCComp = RC1 || RC2;
diff --git a/tests/baselines/reference/tsxUnionTypeComponent1.js b/tests/baselines/reference/tsxUnionTypeComponent1.js
index 7c5349cdc5f85..3801c5a599b6b 100644
--- a/tests/baselines/reference/tsxUnionTypeComponent1.js
+++ b/tests/baselines/reference/tsxUnionTypeComponent1.js
@@ -35,6 +35,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var React = require("react");
 var MyComponent = (function (_super) {
@@ -46,6 +60,7 @@ var MyComponent = (function (_super) {
         var AnyComponent = this.props.AnyComponent;
         return (React.createElement(AnyComponent, null));
     };
+    __names(MyComponent.prototype, ["render"]);
     return MyComponent;
 }(React.Component));
 // Stateless Component As Props
diff --git a/tests/baselines/reference/typeCheckTypeArgument.js b/tests/baselines/reference/typeCheckTypeArgument.js
index d4db194a1f9d3..8765d17ee8484 100644
--- a/tests/baselines/reference/typeCheckTypeArgument.js
+++ b/tests/baselines/reference/typeCheckTypeArgument.js
@@ -14,6 +14,20 @@ class Foo2 {
 (<T extends UNKNOWN>(a) => { });
 
 //// [typeCheckTypeArgument.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var f;
 var Foo = (function () {
     function Foo() {
@@ -25,6 +39,7 @@ var Foo2 = (function () {
     function Foo2() {
     }
     Foo2.prototype.method = function () { };
+    __names(Foo2.prototype, ["method"]);
     return Foo2;
 }());
 (function (a) { });
diff --git a/tests/baselines/reference/typeConstraintsWithConstructSignatures.js b/tests/baselines/reference/typeConstraintsWithConstructSignatures.js
index b5d2574834a51..dedbf6c4156f1 100644
--- a/tests/baselines/reference/typeConstraintsWithConstructSignatures.js
+++ b/tests/baselines/reference/typeConstraintsWithConstructSignatures.js
@@ -13,6 +13,20 @@ class C<T extends Constructable> {
 
 
 //// [typeConstraintsWithConstructSignatures.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(data, data2) {
         this.data = data;
@@ -22,5 +36,6 @@ var C = (function () {
         var x = new this.data(); // should not error
         var x2 = new this.data2(); // should not error
     };
+    __names(C.prototype, ["create"]);
     return C;
 }());
diff --git a/tests/baselines/reference/typeGuardFunction.js b/tests/baselines/reference/typeGuardFunction.js
index 20518ddab2156..50952ec1027a0 100644
--- a/tests/baselines/reference/typeGuardFunction.js
+++ b/tests/baselines/reference/typeGuardFunction.js
@@ -93,6 +93,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -137,6 +151,7 @@ var D = (function () {
     D.prototype.method1 = function (p1) {
         return true;
     };
+    __names(D.prototype, ["method1"]);
     return D;
 }());
 // Arrow function
diff --git a/tests/baselines/reference/typeGuardFunctionOfFormThis.js b/tests/baselines/reference/typeGuardFunctionOfFormThis.js
index 7ebee44cc307b..3623b6b18569b 100644
--- a/tests/baselines/reference/typeGuardFunctionOfFormThis.js
+++ b/tests/baselines/reference/typeGuardFunctionOfFormThis.js
@@ -142,6 +142,20 @@ interface MimicGuardInterface {
 
 
 //// [typeGuardFunctionOfFormThis.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -161,6 +175,7 @@ var RoyalGuard = (function () {
     RoyalGuard.prototype.isFollower = function () {
         return this instanceof FollowerGuard;
     };
+    __names(RoyalGuard.prototype, ["isLeader", "isFollower"]);
     return RoyalGuard;
 }());
 var LeadGuard = (function (_super) {
@@ -170,6 +185,7 @@ var LeadGuard = (function (_super) {
     }
     LeadGuard.prototype.lead = function () { };
     ;
+    __names(LeadGuard.prototype, ["lead"]);
     return LeadGuard;
 }(RoyalGuard));
 var FollowerGuard = (function (_super) {
@@ -179,6 +195,7 @@ var FollowerGuard = (function (_super) {
     }
     FollowerGuard.prototype.follow = function () { };
     ;
+    __names(FollowerGuard.prototype, ["follow"]);
     return FollowerGuard;
 }(RoyalGuard));
 var a = new FollowerGuard();
@@ -232,6 +249,7 @@ var ArrowElite = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     ArrowElite.prototype.defend = function () { };
+    __names(ArrowElite.prototype, ["defend"]);
     return ArrowElite;
 }(ArrowGuard));
 var ArrowMedic = (function (_super) {
@@ -240,6 +258,7 @@ var ArrowMedic = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     ArrowMedic.prototype.heal = function () { };
+    __names(ArrowMedic.prototype, ["heal"]);
     return ArrowMedic;
 }(ArrowGuard));
 var guard = new ArrowGuard();
@@ -266,6 +285,7 @@ var MimicGuard = (function () {
     ;
     MimicGuard.prototype.isFollower = function () { return this instanceof MimicFollower; };
     ;
+    __names(MimicGuard.prototype, ["isLeader", "isFollower"]);
     return MimicGuard;
 }());
 var MimicLeader = (function (_super) {
@@ -274,6 +294,7 @@ var MimicLeader = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     MimicLeader.prototype.lead = function () { };
+    __names(MimicLeader.prototype, ["lead"]);
     return MimicLeader;
 }(MimicGuard));
 var MimicFollower = (function (_super) {
@@ -282,6 +303,7 @@ var MimicFollower = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     MimicFollower.prototype.follow = function () { };
+    __names(MimicFollower.prototype, ["follow"]);
     return MimicFollower;
 }(MimicGuard));
 var mimic = new MimicGuard();
diff --git a/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js b/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js
index e25c9a2dc9d74..a092542802a8f 100644
--- a/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js
+++ b/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js
@@ -60,6 +60,20 @@ else {
 }
 
 //// [typeGuardFunctionOfFormThisErrors.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -79,6 +93,7 @@ var RoyalGuard = (function () {
     RoyalGuard.prototype.isFollower = function () {
         return this instanceof FollowerGuard;
     };
+    __names(RoyalGuard.prototype, ["isLeader", "isFollower"]);
     return RoyalGuard;
 }());
 var LeadGuard = (function (_super) {
@@ -88,6 +103,7 @@ var LeadGuard = (function (_super) {
     }
     LeadGuard.prototype.lead = function () { };
     ;
+    __names(LeadGuard.prototype, ["lead"]);
     return LeadGuard;
 }(RoyalGuard));
 var FollowerGuard = (function (_super) {
@@ -97,6 +113,7 @@ var FollowerGuard = (function (_super) {
     }
     FollowerGuard.prototype.follow = function () { };
     ;
+    __names(FollowerGuard.prototype, ["follow"]);
     return FollowerGuard;
 }(RoyalGuard));
 var a = new FollowerGuard();
diff --git a/tests/baselines/reference/typeGuardsInClassMethods.js b/tests/baselines/reference/typeGuardsInClassMethods.js
index f5ad4e6325d81..a7e1137184071 100644
--- a/tests/baselines/reference/typeGuardsInClassMethods.js
+++ b/tests/baselines/reference/typeGuardsInClassMethods.js
@@ -71,6 +71,20 @@ class C1 {
 //// [typeGuardsInClassMethods.js]
 // Note that type guards affect types of variables and parameters only and 
 // have no effect on members of objects such as properties. 
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // variables in global
 var num;
 var var1;
@@ -124,5 +138,6 @@ var C1 = (function () {
         // parameters in function declaration
         num = typeof param === "string" && param.length; // string
     };
+    __names(C1.prototype, ["p1", "p2"]);
     return C1;
 }());
diff --git a/tests/baselines/reference/typeGuardsInProperties.js b/tests/baselines/reference/typeGuardsInProperties.js
index 77d4f3a609665..3a4cfee5d012b 100644
--- a/tests/baselines/reference/typeGuardsInProperties.js
+++ b/tests/baselines/reference/typeGuardsInProperties.js
@@ -28,6 +28,20 @@ strOrNum = typeof obj1.x === "string" && obj1.x;  // string | number
 //// [typeGuardsInProperties.js]
 // Note that type guards affect types of variables and parameters only and 
 // have no effect on members of objects such as properties. 
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var num;
 var strOrNum;
 var C1 = (function () {
@@ -46,6 +60,7 @@ var C1 = (function () {
         strOrNum = typeof this.pp2 === "string" && this.pp2; // string | number
         strOrNum = typeof this.pp3 === "string" && this.pp3; // string | number
     };
+    __names(C1.prototype, ["method"]);
     return C1;
 }());
 var c1;
diff --git a/tests/baselines/reference/typeGuardsOnClassProperty.js b/tests/baselines/reference/typeGuardsOnClassProperty.js
index abe031e96e672..d1ba221411f02 100644
--- a/tests/baselines/reference/typeGuardsOnClassProperty.js
+++ b/tests/baselines/reference/typeGuardsOnClassProperty.js
@@ -31,6 +31,20 @@ if (typeof prop1 === "string" && prop1.toLocaleLowerCase()) { }
 //// [typeGuardsOnClassProperty.js]
 // Note that type guards affect types of variables and parameters only and 
 // have no effect on members of objects such as properties. 
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // Note that the class's property must be copied to a local variable for
 // the type guard to have an effect
 var D = (function () {
@@ -43,6 +57,7 @@ var D = (function () {
     D.prototype.getData1 = function () {
         return typeof this.data === "string" ? this.data : this.data.join(" ");
     };
+    __names(D.prototype, ["getData", "getData1"]);
     return D;
 }());
 var o = {
diff --git a/tests/baselines/reference/typeInferenceLiteralUnion.js b/tests/baselines/reference/typeInferenceLiteralUnion.js
index 289dd4130460b..ef6e69b6f945f 100644
--- a/tests/baselines/reference/typeInferenceLiteralUnion.js
+++ b/tests/baselines/reference/typeInferenceLiteralUnion.js
@@ -38,6 +38,20 @@ extentMixed = extent([new NumCoercible(10), 13, '12', true]);
 
 //// [typeInferenceLiteralUnion.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 // Not very useful, but meets Numeric
 var NumCoercible = (function () {
@@ -47,6 +61,7 @@ var NumCoercible = (function () {
     NumCoercible.prototype.valueOf = function () {
         return this.a;
     };
+    __names(NumCoercible.prototype, ["valueOf"]);
     return NumCoercible;
 }());
 /**
diff --git a/tests/baselines/reference/typeInferenceReturnTypeCallback.js b/tests/baselines/reference/typeInferenceReturnTypeCallback.js
index 6de0cb5524c81..94ff05fc8b52f 100644
--- a/tests/baselines/reference/typeInferenceReturnTypeCallback.js
+++ b/tests/baselines/reference/typeInferenceReturnTypeCallback.js
@@ -22,12 +22,27 @@ class Cons<T> implements IList<T>{
 }
 
 //// [typeInferenceReturnTypeCallback.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Nil = (function () {
     function Nil() {
     }
     Nil.prototype.map = function (f) {
         return null;
     };
+    __names(Nil.prototype, ["map"]);
     return Nil;
 }());
 var Cons = (function () {
@@ -41,5 +56,6 @@ var Cons = (function () {
     Cons.prototype.foldRight = function (z, f) {
         return null;
     };
+    __names(Cons.prototype, ["map", "foldRight"]);
     return Cons;
 }());
diff --git a/tests/baselines/reference/typeOfThis.js b/tests/baselines/reference/typeOfThis.js
index c1febeae4e4d8..3782e8f5ffac1 100644
--- a/tests/baselines/reference/typeOfThis.js
+++ b/tests/baselines/reference/typeOfThis.js
@@ -178,6 +178,20 @@ this.spaaaaace = 4;
 
 
 //// [typeOfThis.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var _this = this;
 var MyTestClass = (function () {
     function MyTestClass() {
@@ -247,6 +261,7 @@ var MyTestClass = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(MyTestClass.prototype, ["memberFunc"]);
     return MyTestClass;
 }());
 var MyGenericTestClass = (function () {
@@ -317,6 +332,7 @@ var MyGenericTestClass = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(MyGenericTestClass.prototype, ["memberFunc"]);
     return MyGenericTestClass;
 }());
 //type of 'this' in a function declaration param list is Any
diff --git a/tests/baselines/reference/typeOfThisInInstanceMember.js b/tests/baselines/reference/typeOfThisInInstanceMember.js
index fce84290d5e38..00a824a8214e3 100644
--- a/tests/baselines/reference/typeOfThisInInstanceMember.js
+++ b/tests/baselines/reference/typeOfThisInInstanceMember.js
@@ -32,6 +32,20 @@ rs.forEach(x => {
 });
 
 //// [typeOfThisInInstanceMember.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(x) {
         this.x = this;
@@ -51,6 +65,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/typeOfThisInInstanceMember2.js b/tests/baselines/reference/typeOfThisInInstanceMember2.js
index 2b8867e7ec89a..ccd3efa0fbc84 100644
--- a/tests/baselines/reference/typeOfThisInInstanceMember2.js
+++ b/tests/baselines/reference/typeOfThisInInstanceMember2.js
@@ -36,6 +36,20 @@ rs.forEach(x => {
 });
 
 //// [typeOfThisInInstanceMember2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(x) {
         this.x = this;
@@ -55,6 +69,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c;
diff --git a/tests/baselines/reference/typeOfThisInMemberFunctions.js b/tests/baselines/reference/typeOfThisInMemberFunctions.js
index 9ef1e3a4d7d39..48ad3bc3aa1ca 100644
--- a/tests/baselines/reference/typeOfThisInMemberFunctions.js
+++ b/tests/baselines/reference/typeOfThisInMemberFunctions.js
@@ -32,6 +32,20 @@ class E<T extends Date> {
 }
 
 //// [typeOfThisInMemberFunctions.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -41,6 +55,7 @@ var C = (function () {
     C.bar = function () {
         var r2 = this;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function () {
@@ -52,6 +67,7 @@ var D = (function () {
     D.bar = function () {
         var r2 = this;
     };
+    __names(D.prototype, ["foo"]);
     return D;
 }());
 var E = (function () {
@@ -63,5 +79,6 @@ var E = (function () {
     E.bar = function () {
         var r2 = this;
     };
+    __names(E.prototype, ["foo"]);
     return E;
 }());
diff --git a/tests/baselines/reference/typeParameterAssignmentCompat1.js b/tests/baselines/reference/typeParameterAssignmentCompat1.js
index c7570a7d0657f..c1a739f220ae0 100644
--- a/tests/baselines/reference/typeParameterAssignmentCompat1.js
+++ b/tests/baselines/reference/typeParameterAssignmentCompat1.js
@@ -20,6 +20,20 @@ class C<T> {
 }
 
 //// [typeParameterAssignmentCompat1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function f() {
     var x;
     var y;
@@ -35,5 +49,6 @@ var C = (function () {
         x = y; // should be an error
         return x;
     };
+    __names(C.prototype, ["f"]);
     return C;
 }());
diff --git a/tests/baselines/reference/typeParameterExtendingUnion1.js b/tests/baselines/reference/typeParameterExtendingUnion1.js
index b582877f35cda..bece6309f23d8 100644
--- a/tests/baselines/reference/typeParameterExtendingUnion1.js
+++ b/tests/baselines/reference/typeParameterExtendingUnion1.js
@@ -13,6 +13,20 @@ function f<T extends Cat | Dog>(a: T) {
 }
 
 //// [typeParameterExtendingUnion1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -27,6 +41,7 @@ var Animal = (function () {
     function Animal() {
     }
     Animal.prototype.run = function () { };
+    __names(Animal.prototype, ["run"]);
     return Animal;
 }());
 var Cat = (function (_super) {
diff --git a/tests/baselines/reference/typeParameterExtendingUnion2.js b/tests/baselines/reference/typeParameterExtendingUnion2.js
index b96298c574f12..0a927ed2d8a18 100644
--- a/tests/baselines/reference/typeParameterExtendingUnion2.js
+++ b/tests/baselines/reference/typeParameterExtendingUnion2.js
@@ -13,6 +13,20 @@ function f<T extends Cat | Dog>(a: T) {
 }
 
 //// [typeParameterExtendingUnion2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -27,6 +41,7 @@ var Animal = (function () {
     function Animal() {
     }
     Animal.prototype.run = function () { };
+    __names(Animal.prototype, ["run"]);
     return Animal;
 }());
 var Cat = (function (_super) {
diff --git a/tests/baselines/reference/typeParameterUsedAsTypeParameterConstraint4.js b/tests/baselines/reference/typeParameterUsedAsTypeParameterConstraint4.js
index d78cf2aa3665c..5885098c2c4b1 100644
--- a/tests/baselines/reference/typeParameterUsedAsTypeParameterConstraint4.js
+++ b/tests/baselines/reference/typeParameterUsedAsTypeParameterConstraint4.js
@@ -56,6 +56,20 @@ var f4 = <U extends T, T>(x: V, y: X) => { // error
 //// [typeParameterUsedAsTypeParameterConstraint4.js]
 // Type parameters are in scope in their own and other type parameter lists
 // Some negative cases
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
     }
@@ -63,6 +77,7 @@ var C = (function () {
         var r;
         return x;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 function foo(x, y) {
diff --git a/tests/baselines/reference/typeParameterWithInvalidConstraintType.js b/tests/baselines/reference/typeParameterWithInvalidConstraintType.js
index 40a2aeacf4b3e..82823c9c0091e 100644
--- a/tests/baselines/reference/typeParameterWithInvalidConstraintType.js
+++ b/tests/baselines/reference/typeParameterWithInvalidConstraintType.js
@@ -10,6 +10,20 @@ class A<T extends T> {
 }
 
 //// [typeParameterWithInvalidConstraintType.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -20,5 +34,6 @@ var A = (function () {
         var c = x[1];
         var d = x();
     };
+    __names(A.prototype, ["foo"]);
     return A;
 }());
diff --git a/tests/baselines/reference/typeParametersAndParametersInComputedNames.js b/tests/baselines/reference/typeParametersAndParametersInComputedNames.js
index 7f2c04c2ec34b..b2634904c9761 100644
--- a/tests/baselines/reference/typeParametersAndParametersInComputedNames.js
+++ b/tests/baselines/reference/typeParametersAndParametersInComputedNames.js
@@ -9,13 +9,29 @@ class A {
 }
 
 //// [typeParametersAndParametersInComputedNames.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo(a) {
     return "";
 }
 var A = (function () {
     function A() {
     }
-    A.prototype[foo(a)] = function (a) {
+    A.prototype[_a = foo(a)] = function (a) {
     };
+    __names(A.prototype, [_a]);
     return A;
+    var _a;
 }());
diff --git a/tests/baselines/reference/typeParametersAreIdenticalToThemselves.js b/tests/baselines/reference/typeParametersAreIdenticalToThemselves.js
index 699f3f2f26e5c..705fb6ac038c6 100644
--- a/tests/baselines/reference/typeParametersAreIdenticalToThemselves.js
+++ b/tests/baselines/reference/typeParametersAreIdenticalToThemselves.js
@@ -78,6 +78,20 @@ interface I2<T extends Date> {
 
 //// [typeParametersAreIdenticalToThemselves.js]
 // type parameters from the same declaration are identical to themself
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 function foo1(x) { }
 function foo2(x) { }
 function foo3(x, y) {
@@ -91,6 +105,7 @@ var C = (function () {
     C.prototype.foo2 = function (a, x) { };
     C.prototype.foo3 = function (x) { };
     C.prototype.foo4 = function (x) { };
+    __names(C.prototype, ["foo1", "foo2", "foo3", "foo4"]);
     return C;
 }());
 var C2 = (function () {
@@ -99,5 +114,6 @@ var C2 = (function () {
     C2.prototype.foo1 = function (x) { };
     C2.prototype.foo2 = function (a, x) { };
     C2.prototype.foo3 = function (x) { };
+    __names(C2.prototype, ["foo1", "foo2", "foo3"]);
     return C2;
 }());
diff --git a/tests/baselines/reference/typeParametersAvailableInNestedScope.js b/tests/baselines/reference/typeParametersAvailableInNestedScope.js
index d1b50029d23c2..88d54f8f3fce5 100644
--- a/tests/baselines/reference/typeParametersAvailableInNestedScope.js
+++ b/tests/baselines/reference/typeParametersAvailableInNestedScope.js
@@ -22,6 +22,20 @@ c.data = c.foo();
 
 
 //// [typeParametersAvailableInNestedScope.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C() {
         this.x = function (a) {
@@ -36,6 +50,7 @@ var C = (function () {
         }
         return temp(null);
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c = new C();
diff --git a/tests/baselines/reference/typeQueryOnClass.js b/tests/baselines/reference/typeQueryOnClass.js
index 85dff0de831e0..11bed558f48bd 100644
--- a/tests/baselines/reference/typeQueryOnClass.js
+++ b/tests/baselines/reference/typeQueryOnClass.js
@@ -57,6 +57,20 @@ var r3: typeof D;
 var r4: typeof d;
 
 //// [typeQueryOnClass.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(x) {
         var _this = this;
@@ -99,6 +113,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, ["baz"]);
     C.sa = 1;
     C.sb = function () { return 1; };
     return C;
@@ -112,6 +127,7 @@ var D = (function () {
         this.y = y;
     }
     D.prototype.foo = function () { };
+    __names(D.prototype, ["foo"]);
     return D;
 }());
 var d;
diff --git a/tests/baselines/reference/typeQueryWithReservedWords.js b/tests/baselines/reference/typeQueryWithReservedWords.js
index 09c3b642a36d0..2e6f9c505f1d4 100644
--- a/tests/baselines/reference/typeQueryWithReservedWords.js
+++ b/tests/baselines/reference/typeQueryWithReservedWords.js
@@ -16,6 +16,20 @@ interface IScope {
 
 
 //// [typeQueryWithReservedWords.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Controller = (function () {
     function Controller() {
     }
@@ -25,5 +39,6 @@ var Controller = (function () {
     };
     Controller.prototype["var"] = function () {
     };
+    __names(Controller.prototype, ["create", "delete", "var"]);
     return Controller;
 }());
diff --git a/tests/baselines/reference/typeRelationships.js b/tests/baselines/reference/typeRelationships.js
index 5227a109b172a..b26da5266198d 100644
--- a/tests/baselines/reference/typeRelationships.js
+++ b/tests/baselines/reference/typeRelationships.js
@@ -41,6 +41,20 @@ class D extends C {
 
 
 //// [typeRelationships.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -72,6 +86,7 @@ var C = (function () {
     C.prototype.f3 = function (b) {
         return b ? this.c : this.self; // Should be C
     };
+    __names(C.prototype, ["foo", "f1", "f2", "f3"]);
     return C;
 }());
 var D = (function (_super) {
@@ -96,5 +111,6 @@ var D = (function (_super) {
         this.self = this.d; // Error
         this.c = this.d;
     };
+    __names(D.prototype, ["bar"]);
     return D;
 }(C));
diff --git a/tests/baselines/reference/typeResolution.js b/tests/baselines/reference/typeResolution.js
index cb8a40cf0a6e6..c92156714a575 100644
--- a/tests/baselines/reference/typeResolution.js
+++ b/tests/baselines/reference/typeResolution.js
@@ -111,6 +111,20 @@ module TopLevelModule2 {
 
 
 //// [typeResolution.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 define(["require", "exports"], function (require, exports) {
     "use strict";
     exports.__esModule = true;
@@ -147,6 +161,7 @@ define(["require", "exports"], function (require, exports) {
                         var d2;
                         d2.XisIn1_1_1();
                     };
+                    __names(ClassA.prototype, ["AisIn1_1_1"]);
                     return ClassA;
                 }());
                 SubSubModule1.ClassA = ClassA;
@@ -180,6 +195,7 @@ define(["require", "exports"], function (require, exports) {
                         var d2;
                         d2.XisIn1_1_1();
                     };
+                    __names(ClassB.prototype, ["BisIn1_1_1"]);
                     return ClassB;
                 }());
                 SubSubModule1.ClassB = ClassB;
@@ -227,6 +243,7 @@ define(["require", "exports"], function (require, exports) {
                     function ClassA() {
                     }
                     ClassA.prototype.AisIn1_2_2 = function () { };
+                    __names(ClassA.prototype, ["AisIn1_2_2"]);
                     return ClassA;
                 }());
                 SubSubModule2.ClassA = ClassA;
@@ -234,6 +251,7 @@ define(["require", "exports"], function (require, exports) {
                     function ClassB() {
                     }
                     ClassB.prototype.BisIn1_2_2 = function () { };
+                    __names(ClassB.prototype, ["BisIn1_2_2"]);
                     return ClassB;
                 }());
                 SubSubModule2.ClassB = ClassB;
@@ -241,6 +259,7 @@ define(["require", "exports"], function (require, exports) {
                     function ClassC() {
                     }
                     ClassC.prototype.CisIn1_2_2 = function () { };
+                    __names(ClassC.prototype, ["CisIn1_2_2"]);
                     return ClassC;
                 }());
                 SubSubModule2.ClassC = ClassC;
@@ -250,6 +269,7 @@ define(["require", "exports"], function (require, exports) {
             function ClassA() {
             }
             ClassA.prototype.AisIn1 = function () { };
+            __names(ClassA.prototype, ["AisIn1"]);
             return ClassA;
         }());
         var NotExportedModule;
@@ -270,6 +290,7 @@ define(["require", "exports"], function (require, exports) {
                 function ClassA() {
                 }
                 ClassA.prototype.AisIn2_3 = function () { };
+                __names(ClassA.prototype, ["AisIn2_3"]);
                 return ClassA;
             }());
             SubModule3.ClassA = ClassA;
diff --git a/tests/baselines/reference/typeResolution.js.map b/tests/baselines/reference/typeResolution.js.map
index 5bf95ac5b29c3..eabc422a2d8d3 100644
--- a/tests/baselines/reference/typeResolution.js.map
+++ b/tests/baselines/reference/typeResolution.js.map
@@ -1,2 +1,2 @@
 //// [typeResolution.js.map]
-{"version":3,"file":"typeResolution.js","sourceRoot":"","sources":["typeResolution.ts"],"names":[],"mappings":";;;IAAA,IAAc,eAAe,CAmG5B;IAnGD,WAAc,eAAe;QACzB,IAAc,UAAU,CAwEvB;QAxED,WAAc,UAAU;YACpB,IAAc,aAAa,CAwD1B;YAxDD,WAAc,aAAa;gBACvB;oBAAA;oBAmBA,CAAC;oBAlBU,2BAAU,GAAjB;wBACI,uCAAuC;wBACvC,IAAI,EAAU,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAChC,IAAI,EAAwB,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAC9C,IAAI,EAAmC,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACzD,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,yCAAyC;wBACzC,IAAI,EAAU,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAChC,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,qCAAqC;wBACrC,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,sBAAsB;wBACtB,IAAI,EAAc,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACpC,IAAI,EAA4B,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;oBACtD,CAAC;oBACL,aAAC;gBAAD,CAAC,AAnBD,IAmBC;gBAnBY,oBAAM,SAmBlB,CAAA;gBACD;oBAAA;oBAsBA,CAAC;oBArBU,2BAAU,GAAjB;wBACI,+CAA+C;wBAE/C,uCAAuC;wBACvC,IAAI,EAAU,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAChC,IAAI,EAAwB,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAC9C,IAAI,EAAmC,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACzD,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,yCAAyC;wBACzC,IAAI,EAAU,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAChC,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,qCAAqC;wBACrC,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACzE,IAAI,EAAqC,CAAC;wBAAC,EAAE,CAAC,QAAQ,EAAE,CAAC;wBAEzD,sBAAsB;wBACtB,IAAI,EAAc,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACpC,IAAI,EAA4B,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;oBACtD,CAAC;oBACL,aAAC;gBAAD,CAAC,AAtBD,IAsBC;gBAtBY,oBAAM,SAsBlB,CAAA;gBAED;oBACI;wBACI;4BACI,uCAAuC;4BACvC,IAAI,EAAmD,CAAC;4BAAC,EAAE,CAAC,UAAU,EAAE,CAAC;4BACzE,IAAI,EAAmD,CAAC;4BAAC,EAAE,CAAC,UAAU,EAAE,CAAC;4BACzE,IAAI,EAAc,CAAC;4BAAC,EAAE,CAAC,UAAU,EAAE,CAAC;4BACpC,IAAI,EAAqC,CAAC;4BAAC,EAAE,CAAC,QAAQ,EAAE,CAAC;wBAC7D,CAAC;oBACL,CAAC;oBACL,wBAAC;gBAAD,CAAC,AAVD,IAUC;YACL,CAAC,EAxDa,aAAa,GAAb,wBAAa,KAAb,wBAAa,QAwD1B;YAED,0EAA0E;YAC1E;gBACI;oBACI;wBACI,IAAI,EAAwB,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAC9C,IAAI,EAAmC,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACzD,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,sBAAsB;wBACtB,IAAI,EAA4B,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;oBACtD,CAAC;gBACL,CAAC;gBACL,aAAC;YAAD,CAAC,AAXD,IAWC;QACL,CAAC,EAxEa,UAAU,GAAV,0BAAU,KAAV,0BAAU,QAwEvB;QAED,IAAc,UAAU,CAWvB;QAXD,WAAc,UAAU;YACpB,IAAc,aAAa,CAO1B;YAPD,WAAc,aAAa;gBACvB,6DAA6D;gBAC7D;oBAAA;oBAA8C,CAAC;oBAAlB,2BAAU,GAAjB,cAAsB,CAAC;oBAAC,aAAC;gBAAD,CAAC,AAA/C,IAA+C;gBAAlC,oBAAM,SAA4B,CAAA;gBAC/C;oBAAA;oBAA8C,CAAC;oBAAlB,2BAAU,GAAjB,cAAsB,CAAC;oBAAC,aAAC;gBAAD,CAAC,AAA/C,IAA+C;gBAAlC,oBAAM,SAA4B,CAAA;gBAC/C;oBAAA;oBAA8C,CAAC;oBAAlB,2BAAU,GAAjB,cAAsB,CAAC;oBAAC,aAAC;gBAAD,CAAC,AAA/C,IAA+C;gBAAlC,oBAAM,SAA4B,CAAA;YAGnD,CAAC,EAPa,aAAa,GAAb,wBAAa,KAAb,wBAAa,QAO1B;QAGL,CAAC,EAXa,UAAU,GAAV,0BAAU,KAAV,0BAAU,QAWvB;QAED;YAAA;YAEA,CAAC;YADU,uBAAM,GAAb,cAAkB,CAAC;YACvB,aAAC;QAAD,CAAC,AAFD,IAEC;QAMD,IAAO,iBAAiB,CAEvB;QAFD,WAAO,iBAAiB;YACpB;gBAAA;gBAAsB,CAAC;gBAAD,aAAC;YAAD,CAAC,AAAvB,IAAuB;YAAV,wBAAM,SAAI,CAAA;QAC3B,CAAC,EAFM,iBAAiB,KAAjB,iBAAiB,QAEvB;IACL,CAAC,EAnGa,eAAe,GAAf,uBAAe,KAAf,uBAAe,QAmG5B;IAED,IAAO,eAAe,CAMrB;IAND,WAAO,eAAe;QAClB,IAAc,UAAU,CAIvB;QAJD,WAAc,UAAU;YACpB;gBAAA;gBAEA,CAAC;gBADU,yBAAQ,GAAf,cAAoB,CAAC;gBACzB,aAAC;YAAD,CAAC,AAFD,IAEC;YAFY,iBAAM,SAElB,CAAA;QACL,CAAC,EAJa,UAAU,GAAV,0BAAU,KAAV,0BAAU,QAIvB;IACL,CAAC,EANM,eAAe,KAAf,eAAe,QAMrB"}
\ No newline at end of file
+{"version":3,"file":"typeResolution.js","sourceRoot":"","sources":["typeResolution.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;IAAA,IAAc,eAAe,CAmG5B;IAnGD,WAAc,eAAe;QACzB,IAAc,UAAU,CAwEvB;QAxED,WAAc,UAAU;YACpB,IAAc,aAAa,CAwD1B;YAxDD,WAAc,aAAa;gBACvB;oBAAA;oBAmBA,CAAC;oBAlBU,2BAAU,GAAjB;wBACI,uCAAuC;wBACvC,IAAI,EAAU,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAChC,IAAI,EAAwB,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAC9C,IAAI,EAAmC,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACzD,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,yCAAyC;wBACzC,IAAI,EAAU,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAChC,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,qCAAqC;wBACrC,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,sBAAsB;wBACtB,IAAI,EAAc,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACpC,IAAI,EAA4B,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;oBACtD,CAAC;;oBACL,aAAC;gBAAD,CAAC,AAnBD,IAmBC;gBAnBY,oBAAM,SAmBlB,CAAA;gBACD;oBAAA;oBAsBA,CAAC;oBArBU,2BAAU,GAAjB;wBACI,+CAA+C;wBAE/C,uCAAuC;wBACvC,IAAI,EAAU,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAChC,IAAI,EAAwB,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAC9C,IAAI,EAAmC,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACzD,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,yCAAyC;wBACzC,IAAI,EAAU,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAChC,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,qCAAqC;wBACrC,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACzE,IAAI,EAAqC,CAAC;wBAAC,EAAE,CAAC,QAAQ,EAAE,CAAC;wBAEzD,sBAAsB;wBACtB,IAAI,EAAc,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACpC,IAAI,EAA4B,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;oBACtD,CAAC;;oBACL,aAAC;gBAAD,CAAC,AAtBD,IAsBC;gBAtBY,oBAAM,SAsBlB,CAAA;gBAED;oBACI;wBACI;4BACI,uCAAuC;4BACvC,IAAI,EAAmD,CAAC;4BAAC,EAAE,CAAC,UAAU,EAAE,CAAC;4BACzE,IAAI,EAAmD,CAAC;4BAAC,EAAE,CAAC,UAAU,EAAE,CAAC;4BACzE,IAAI,EAAc,CAAC;4BAAC,EAAE,CAAC,UAAU,EAAE,CAAC;4BACpC,IAAI,EAAqC,CAAC;4BAAC,EAAE,CAAC,QAAQ,EAAE,CAAC;wBAC7D,CAAC;oBACL,CAAC;oBACL,wBAAC;gBAAD,CAAC,AAVD,IAUC;YACL,CAAC,EAxDa,aAAa,GAAb,wBAAa,KAAb,wBAAa,QAwD1B;YAED,0EAA0E;YAC1E;gBACI;oBACI;wBACI,IAAI,EAAwB,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAC9C,IAAI,EAAmC,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBACzD,IAAI,EAAmD,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;wBAEzE,sBAAsB;wBACtB,IAAI,EAA4B,CAAC;wBAAC,EAAE,CAAC,UAAU,EAAE,CAAC;oBACtD,CAAC;gBACL,CAAC;gBACL,aAAC;YAAD,CAAC,AAXD,IAWC;QACL,CAAC,EAxEa,UAAU,GAAV,0BAAU,KAAV,0BAAU,QAwEvB;QAED,IAAc,UAAU,CAWvB;QAXD,WAAc,UAAU;YACpB,IAAc,aAAa,CAO1B;YAPD,WAAc,aAAa;gBACvB,6DAA6D;gBAC7D;oBAAA;oBAA8C,CAAC;oBAAlB,2BAAU,GAAjB,cAAsB,CAAC;;oBAAC,aAAC;gBAAD,CAAC,AAA/C,IAA+C;gBAAlC,oBAAM,SAA4B,CAAA;gBAC/C;oBAAA;oBAA8C,CAAC;oBAAlB,2BAAU,GAAjB,cAAsB,CAAC;;oBAAC,aAAC;gBAAD,CAAC,AAA/C,IAA+C;gBAAlC,oBAAM,SAA4B,CAAA;gBAC/C;oBAAA;oBAA8C,CAAC;oBAAlB,2BAAU,GAAjB,cAAsB,CAAC;;oBAAC,aAAC;gBAAD,CAAC,AAA/C,IAA+C;gBAAlC,oBAAM,SAA4B,CAAA;YAGnD,CAAC,EAPa,aAAa,GAAb,wBAAa,KAAb,wBAAa,QAO1B;QAGL,CAAC,EAXa,UAAU,GAAV,0BAAU,KAAV,0BAAU,QAWvB;QAED;YAAA;YAEA,CAAC;YADU,uBAAM,GAAb,cAAkB,CAAC;;YACvB,aAAC;QAAD,CAAC,AAFD,IAEC;QAMD,IAAO,iBAAiB,CAEvB;QAFD,WAAO,iBAAiB;YACpB;gBAAA;gBAAsB,CAAC;gBAAD,aAAC;YAAD,CAAC,AAAvB,IAAuB;YAAV,wBAAM,SAAI,CAAA;QAC3B,CAAC,EAFM,iBAAiB,KAAjB,iBAAiB,QAEvB;IACL,CAAC,EAnGa,eAAe,GAAf,uBAAe,KAAf,uBAAe,QAmG5B;IAED,IAAO,eAAe,CAMrB;IAND,WAAO,eAAe;QAClB,IAAc,UAAU,CAIvB;QAJD,WAAc,UAAU;YACpB;gBAAA;gBAEA,CAAC;gBADU,yBAAQ,GAAf,cAAoB,CAAC;;gBACzB,aAAC;YAAD,CAAC,AAFD,IAEC;YAFY,iBAAM,SAElB,CAAA;QACL,CAAC,EAJa,UAAU,GAAV,0BAAU,KAAV,0BAAU,QAIvB;IACL,CAAC,EANM,eAAe,KAAf,eAAe,QAMrB"}
\ No newline at end of file
diff --git a/tests/baselines/reference/typeResolution.sourcemap.txt b/tests/baselines/reference/typeResolution.sourcemap.txt
index 19e8b9991d154..618675fedf011 100644
--- a/tests/baselines/reference/typeResolution.sourcemap.txt
+++ b/tests/baselines/reference/typeResolution.sourcemap.txt
@@ -8,6 +8,20 @@ sources: typeResolution.ts
 emittedFile:tests/cases/compiler/typeResolution.js
 sourceFile:typeResolution.ts
 -------------------------------------------------------------------
+>>>var __names = (this && this.__names) || (function() {
+>>>    var name = Object.defineProperty ? (function(proto, name) {
+>>>        Object.defineProperty(proto[name], 'name', { 
+>>>            value: name, configurable: true, writable: false, enumerable: false
+>>>        });
+>>>    }) : (function(proto, name) {
+>>>        proto[name].name = name;
+>>>    });
+>>>    return function (proto, keys) {
+>>>        for (var i = keys.length - 1; i >= 0; i--) {
+>>>            name(proto, keys[i])
+>>>        }
+>>>    };
+>>>})();
 >>>define(["require", "exports"], function (require, exports) {
 >>>    "use strict";
 >>>    exports.__esModule = true;
@@ -120,10 +134,10 @@ sourceFile:typeResolution.ts
   >                               export class ClassA { }
   >                           }
   >                       }
-1 >Emitted(4, 5) Source(1, 1) + SourceIndex(0)
-2 >Emitted(4, 9) Source(1, 15) + SourceIndex(0)
-3 >Emitted(4, 24) Source(1, 30) + SourceIndex(0)
-4 >Emitted(4, 25) Source(100, 2) + SourceIndex(0)
+1 >Emitted(18, 5) Source(1, 1) + SourceIndex(0)
+2 >Emitted(18, 9) Source(1, 15) + SourceIndex(0)
+3 >Emitted(18, 24) Source(1, 30) + SourceIndex(0)
+4 >Emitted(18, 25) Source(100, 2) + SourceIndex(0)
 ---
 >>>    (function (TopLevelModule1) {
 1->^^^^
@@ -132,9 +146,9 @@ sourceFile:typeResolution.ts
 1->
 2 >    export module 
 3 >               TopLevelModule1
-1->Emitted(5, 5) Source(1, 1) + SourceIndex(0)
-2 >Emitted(5, 16) Source(1, 15) + SourceIndex(0)
-3 >Emitted(5, 31) Source(1, 30) + SourceIndex(0)
+1->Emitted(19, 5) Source(1, 1) + SourceIndex(0)
+2 >Emitted(19, 16) Source(1, 15) + SourceIndex(0)
+3 >Emitted(19, 31) Source(1, 30) + SourceIndex(0)
 ---
 >>>        var SubModule1;
 1 >^^^^^^^^
@@ -219,10 +233,10 @@ sourceFile:typeResolution.ts
   >                                  }
   >                              }
   >                          }
-1 >Emitted(6, 9) Source(2, 5) + SourceIndex(0)
-2 >Emitted(6, 13) Source(2, 19) + SourceIndex(0)
-3 >Emitted(6, 23) Source(2, 29) + SourceIndex(0)
-4 >Emitted(6, 24) Source(74, 6) + SourceIndex(0)
+1 >Emitted(20, 9) Source(2, 5) + SourceIndex(0)
+2 >Emitted(20, 13) Source(2, 19) + SourceIndex(0)
+3 >Emitted(20, 23) Source(2, 29) + SourceIndex(0)
+4 >Emitted(20, 24) Source(74, 6) + SourceIndex(0)
 ---
 >>>        (function (SubModule1) {
 1->^^^^^^^^
@@ -232,9 +246,9 @@ sourceFile:typeResolution.ts
 1->
 2 >        export module 
 3 >                   SubModule1
-1->Emitted(7, 9) Source(2, 5) + SourceIndex(0)
-2 >Emitted(7, 20) Source(2, 19) + SourceIndex(0)
-3 >Emitted(7, 30) Source(2, 29) + SourceIndex(0)
+1->Emitted(21, 9) Source(2, 5) + SourceIndex(0)
+2 >Emitted(21, 20) Source(2, 19) + SourceIndex(0)
+3 >Emitted(21, 30) Source(2, 29) + SourceIndex(0)
 ---
 >>>            var SubSubModule1;
 1->^^^^^^^^^^^^
@@ -303,10 +317,10 @@ sourceFile:typeResolution.ts
   >                                             }
   >                                         }
   >                                     }
-1->Emitted(8, 13) Source(3, 9) + SourceIndex(0)
-2 >Emitted(8, 17) Source(3, 23) + SourceIndex(0)
-3 >Emitted(8, 30) Source(3, 36) + SourceIndex(0)
-4 >Emitted(8, 31) Source(59, 10) + SourceIndex(0)
+1->Emitted(22, 13) Source(3, 9) + SourceIndex(0)
+2 >Emitted(22, 17) Source(3, 23) + SourceIndex(0)
+3 >Emitted(22, 30) Source(3, 36) + SourceIndex(0)
+4 >Emitted(22, 31) Source(59, 10) + SourceIndex(0)
 ---
 >>>            (function (SubSubModule1) {
 1->^^^^^^^^^^^^
@@ -316,22 +330,22 @@ sourceFile:typeResolution.ts
 1->
 2 >            export module 
 3 >                       SubSubModule1
-1->Emitted(9, 13) Source(3, 9) + SourceIndex(0)
-2 >Emitted(9, 24) Source(3, 23) + SourceIndex(0)
-3 >Emitted(9, 37) Source(3, 36) + SourceIndex(0)
+1->Emitted(23, 13) Source(3, 9) + SourceIndex(0)
+2 >Emitted(23, 24) Source(3, 23) + SourceIndex(0)
+3 >Emitted(23, 37) Source(3, 36) + SourceIndex(0)
 ---
 >>>                var ClassA = (function () {
 1->^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^^^^^^^^^^^^->
 1-> {
   >            
-1->Emitted(10, 17) Source(4, 13) + SourceIndex(0)
+1->Emitted(24, 17) Source(4, 13) + SourceIndex(0)
 ---
 >>>                    function ClassA() {
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^->
 1->
-1->Emitted(11, 21) Source(4, 13) + SourceIndex(0)
+1->Emitted(25, 21) Source(4, 13) + SourceIndex(0)
 ---
 >>>                    }
 1->^^^^^^^^^^^^^^^^^^^^
@@ -358,8 +372,8 @@ sourceFile:typeResolution.ts
   >                }
   >            
 2 >                    }
-1->Emitted(12, 21) Source(23, 13) + SourceIndex(0)
-2 >Emitted(12, 22) Source(23, 14) + SourceIndex(0)
+1->Emitted(26, 21) Source(23, 13) + SourceIndex(0)
+2 >Emitted(26, 22) Source(23, 14) + SourceIndex(0)
 ---
 >>>                    ClassA.prototype.AisIn1_1_1 = function () {
 1->^^^^^^^^^^^^^^^^^^^^
@@ -369,9 +383,9 @@ sourceFile:typeResolution.ts
 1->
 2 >                    AisIn1_1_1
 3 >                                               
-1->Emitted(13, 21) Source(5, 24) + SourceIndex(0)
-2 >Emitted(13, 48) Source(5, 34) + SourceIndex(0)
-3 >Emitted(13, 51) Source(5, 17) + SourceIndex(0)
+1->Emitted(27, 21) Source(5, 24) + SourceIndex(0)
+2 >Emitted(27, 48) Source(5, 34) + SourceIndex(0)
+3 >Emitted(27, 51) Source(5, 17) + SourceIndex(0)
 ---
 >>>                        // Try all qualified names of this type
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -379,8 +393,8 @@ sourceFile:typeResolution.ts
 1->public AisIn1_1_1() {
   >                    
 2 >                        // Try all qualified names of this type
-1->Emitted(14, 25) Source(6, 21) + SourceIndex(0)
-2 >Emitted(14, 64) Source(6, 60) + SourceIndex(0)
+1->Emitted(28, 25) Source(6, 21) + SourceIndex(0)
+2 >Emitted(28, 64) Source(6, 60) + SourceIndex(0)
 ---
 >>>                        var a1;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -393,10 +407,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            a1: ClassA
 4 >                              ;
-1 >Emitted(15, 25) Source(7, 21) + SourceIndex(0)
-2 >Emitted(15, 29) Source(7, 25) + SourceIndex(0)
-3 >Emitted(15, 31) Source(7, 35) + SourceIndex(0)
-4 >Emitted(15, 32) Source(7, 36) + SourceIndex(0)
+1 >Emitted(29, 25) Source(7, 21) + SourceIndex(0)
+2 >Emitted(29, 29) Source(7, 25) + SourceIndex(0)
+3 >Emitted(29, 31) Source(7, 35) + SourceIndex(0)
+4 >Emitted(29, 32) Source(7, 36) + SourceIndex(0)
 ---
 >>>                        a1.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -411,12 +425,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(16, 25) Source(7, 37) + SourceIndex(0)
-2 >Emitted(16, 27) Source(7, 39) + SourceIndex(0)
-3 >Emitted(16, 28) Source(7, 40) + SourceIndex(0)
-4 >Emitted(16, 38) Source(7, 50) + SourceIndex(0)
-5 >Emitted(16, 40) Source(7, 52) + SourceIndex(0)
-6 >Emitted(16, 41) Source(7, 53) + SourceIndex(0)
+1->Emitted(30, 25) Source(7, 37) + SourceIndex(0)
+2 >Emitted(30, 27) Source(7, 39) + SourceIndex(0)
+3 >Emitted(30, 28) Source(7, 40) + SourceIndex(0)
+4 >Emitted(30, 38) Source(7, 50) + SourceIndex(0)
+5 >Emitted(30, 40) Source(7, 52) + SourceIndex(0)
+6 >Emitted(30, 41) Source(7, 53) + SourceIndex(0)
 ---
 >>>                        var a2;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -429,10 +443,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            a2: SubSubModule1.ClassA
 4 >                              ;
-1 >Emitted(17, 25) Source(8, 21) + SourceIndex(0)
-2 >Emitted(17, 29) Source(8, 25) + SourceIndex(0)
-3 >Emitted(17, 31) Source(8, 49) + SourceIndex(0)
-4 >Emitted(17, 32) Source(8, 50) + SourceIndex(0)
+1 >Emitted(31, 25) Source(8, 21) + SourceIndex(0)
+2 >Emitted(31, 29) Source(8, 25) + SourceIndex(0)
+3 >Emitted(31, 31) Source(8, 49) + SourceIndex(0)
+4 >Emitted(31, 32) Source(8, 50) + SourceIndex(0)
 ---
 >>>                        a2.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -447,12 +461,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(18, 25) Source(8, 51) + SourceIndex(0)
-2 >Emitted(18, 27) Source(8, 53) + SourceIndex(0)
-3 >Emitted(18, 28) Source(8, 54) + SourceIndex(0)
-4 >Emitted(18, 38) Source(8, 64) + SourceIndex(0)
-5 >Emitted(18, 40) Source(8, 66) + SourceIndex(0)
-6 >Emitted(18, 41) Source(8, 67) + SourceIndex(0)
+1->Emitted(32, 25) Source(8, 51) + SourceIndex(0)
+2 >Emitted(32, 27) Source(8, 53) + SourceIndex(0)
+3 >Emitted(32, 28) Source(8, 54) + SourceIndex(0)
+4 >Emitted(32, 38) Source(8, 64) + SourceIndex(0)
+5 >Emitted(32, 40) Source(8, 66) + SourceIndex(0)
+6 >Emitted(32, 41) Source(8, 67) + SourceIndex(0)
 ---
 >>>                        var a3;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -465,10 +479,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            a3: SubModule1.SubSubModule1.ClassA
 4 >                              ;
-1 >Emitted(19, 25) Source(9, 21) + SourceIndex(0)
-2 >Emitted(19, 29) Source(9, 25) + SourceIndex(0)
-3 >Emitted(19, 31) Source(9, 60) + SourceIndex(0)
-4 >Emitted(19, 32) Source(9, 61) + SourceIndex(0)
+1 >Emitted(33, 25) Source(9, 21) + SourceIndex(0)
+2 >Emitted(33, 29) Source(9, 25) + SourceIndex(0)
+3 >Emitted(33, 31) Source(9, 60) + SourceIndex(0)
+4 >Emitted(33, 32) Source(9, 61) + SourceIndex(0)
 ---
 >>>                        a3.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -483,12 +497,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(20, 25) Source(9, 62) + SourceIndex(0)
-2 >Emitted(20, 27) Source(9, 64) + SourceIndex(0)
-3 >Emitted(20, 28) Source(9, 65) + SourceIndex(0)
-4 >Emitted(20, 38) Source(9, 75) + SourceIndex(0)
-5 >Emitted(20, 40) Source(9, 77) + SourceIndex(0)
-6 >Emitted(20, 41) Source(9, 78) + SourceIndex(0)
+1->Emitted(34, 25) Source(9, 62) + SourceIndex(0)
+2 >Emitted(34, 27) Source(9, 64) + SourceIndex(0)
+3 >Emitted(34, 28) Source(9, 65) + SourceIndex(0)
+4 >Emitted(34, 38) Source(9, 75) + SourceIndex(0)
+5 >Emitted(34, 40) Source(9, 77) + SourceIndex(0)
+6 >Emitted(34, 41) Source(9, 78) + SourceIndex(0)
 ---
 >>>                        var a4;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -501,10 +515,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            a4: TopLevelModule1.SubModule1.SubSubModule1.ClassA
 4 >                              ;
-1 >Emitted(21, 25) Source(10, 21) + SourceIndex(0)
-2 >Emitted(21, 29) Source(10, 25) + SourceIndex(0)
-3 >Emitted(21, 31) Source(10, 76) + SourceIndex(0)
-4 >Emitted(21, 32) Source(10, 77) + SourceIndex(0)
+1 >Emitted(35, 25) Source(10, 21) + SourceIndex(0)
+2 >Emitted(35, 29) Source(10, 25) + SourceIndex(0)
+3 >Emitted(35, 31) Source(10, 76) + SourceIndex(0)
+4 >Emitted(35, 32) Source(10, 77) + SourceIndex(0)
 ---
 >>>                        a4.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -520,12 +534,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(22, 25) Source(10, 78) + SourceIndex(0)
-2 >Emitted(22, 27) Source(10, 80) + SourceIndex(0)
-3 >Emitted(22, 28) Source(10, 81) + SourceIndex(0)
-4 >Emitted(22, 38) Source(10, 91) + SourceIndex(0)
-5 >Emitted(22, 40) Source(10, 93) + SourceIndex(0)
-6 >Emitted(22, 41) Source(10, 94) + SourceIndex(0)
+1->Emitted(36, 25) Source(10, 78) + SourceIndex(0)
+2 >Emitted(36, 27) Source(10, 80) + SourceIndex(0)
+3 >Emitted(36, 28) Source(10, 81) + SourceIndex(0)
+4 >Emitted(36, 38) Source(10, 91) + SourceIndex(0)
+5 >Emitted(36, 40) Source(10, 93) + SourceIndex(0)
+6 >Emitted(36, 41) Source(10, 94) + SourceIndex(0)
 ---
 >>>                        // Two variants of qualifying a peer type
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -534,8 +548,8 @@ sourceFile:typeResolution.ts
   >                    
   >                    
 2 >                        // Two variants of qualifying a peer type
-1->Emitted(23, 25) Source(12, 21) + SourceIndex(0)
-2 >Emitted(23, 66) Source(12, 62) + SourceIndex(0)
+1->Emitted(37, 25) Source(12, 21) + SourceIndex(0)
+2 >Emitted(37, 66) Source(12, 62) + SourceIndex(0)
 ---
 >>>                        var b1;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -548,10 +562,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            b1: ClassB
 4 >                              ;
-1 >Emitted(24, 25) Source(13, 21) + SourceIndex(0)
-2 >Emitted(24, 29) Source(13, 25) + SourceIndex(0)
-3 >Emitted(24, 31) Source(13, 35) + SourceIndex(0)
-4 >Emitted(24, 32) Source(13, 36) + SourceIndex(0)
+1 >Emitted(38, 25) Source(13, 21) + SourceIndex(0)
+2 >Emitted(38, 29) Source(13, 25) + SourceIndex(0)
+3 >Emitted(38, 31) Source(13, 35) + SourceIndex(0)
+4 >Emitted(38, 32) Source(13, 36) + SourceIndex(0)
 ---
 >>>                        b1.BisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -566,12 +580,12 @@ sourceFile:typeResolution.ts
 4 >                           BisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(25, 25) Source(13, 37) + SourceIndex(0)
-2 >Emitted(25, 27) Source(13, 39) + SourceIndex(0)
-3 >Emitted(25, 28) Source(13, 40) + SourceIndex(0)
-4 >Emitted(25, 38) Source(13, 50) + SourceIndex(0)
-5 >Emitted(25, 40) Source(13, 52) + SourceIndex(0)
-6 >Emitted(25, 41) Source(13, 53) + SourceIndex(0)
+1->Emitted(39, 25) Source(13, 37) + SourceIndex(0)
+2 >Emitted(39, 27) Source(13, 39) + SourceIndex(0)
+3 >Emitted(39, 28) Source(13, 40) + SourceIndex(0)
+4 >Emitted(39, 38) Source(13, 50) + SourceIndex(0)
+5 >Emitted(39, 40) Source(13, 52) + SourceIndex(0)
+6 >Emitted(39, 41) Source(13, 53) + SourceIndex(0)
 ---
 >>>                        var b2;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -584,10 +598,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            b2: TopLevelModule1.SubModule1.SubSubModule1.ClassB
 4 >                              ;
-1 >Emitted(26, 25) Source(14, 21) + SourceIndex(0)
-2 >Emitted(26, 29) Source(14, 25) + SourceIndex(0)
-3 >Emitted(26, 31) Source(14, 76) + SourceIndex(0)
-4 >Emitted(26, 32) Source(14, 77) + SourceIndex(0)
+1 >Emitted(40, 25) Source(14, 21) + SourceIndex(0)
+2 >Emitted(40, 29) Source(14, 25) + SourceIndex(0)
+3 >Emitted(40, 31) Source(14, 76) + SourceIndex(0)
+4 >Emitted(40, 32) Source(14, 77) + SourceIndex(0)
 ---
 >>>                        b2.BisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -603,12 +617,12 @@ sourceFile:typeResolution.ts
 4 >                           BisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(27, 25) Source(14, 78) + SourceIndex(0)
-2 >Emitted(27, 27) Source(14, 80) + SourceIndex(0)
-3 >Emitted(27, 28) Source(14, 81) + SourceIndex(0)
-4 >Emitted(27, 38) Source(14, 91) + SourceIndex(0)
-5 >Emitted(27, 40) Source(14, 93) + SourceIndex(0)
-6 >Emitted(27, 41) Source(14, 94) + SourceIndex(0)
+1->Emitted(41, 25) Source(14, 78) + SourceIndex(0)
+2 >Emitted(41, 27) Source(14, 80) + SourceIndex(0)
+3 >Emitted(41, 28) Source(14, 81) + SourceIndex(0)
+4 >Emitted(41, 38) Source(14, 91) + SourceIndex(0)
+5 >Emitted(41, 40) Source(14, 93) + SourceIndex(0)
+6 >Emitted(41, 41) Source(14, 94) + SourceIndex(0)
 ---
 >>>                        // Type only accessible from the root
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -617,8 +631,8 @@ sourceFile:typeResolution.ts
   >                    
   >                    
 2 >                        // Type only accessible from the root
-1->Emitted(28, 25) Source(16, 21) + SourceIndex(0)
-2 >Emitted(28, 62) Source(16, 58) + SourceIndex(0)
+1->Emitted(42, 25) Source(16, 21) + SourceIndex(0)
+2 >Emitted(42, 62) Source(16, 58) + SourceIndex(0)
 ---
 >>>                        var c1;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -631,10 +645,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            c1: TopLevelModule1.SubModule2.SubSubModule2.ClassA
 4 >                              ;
-1 >Emitted(29, 25) Source(17, 21) + SourceIndex(0)
-2 >Emitted(29, 29) Source(17, 25) + SourceIndex(0)
-3 >Emitted(29, 31) Source(17, 76) + SourceIndex(0)
-4 >Emitted(29, 32) Source(17, 77) + SourceIndex(0)
+1 >Emitted(43, 25) Source(17, 21) + SourceIndex(0)
+2 >Emitted(43, 29) Source(17, 25) + SourceIndex(0)
+3 >Emitted(43, 31) Source(17, 76) + SourceIndex(0)
+4 >Emitted(43, 32) Source(17, 77) + SourceIndex(0)
 ---
 >>>                        c1.AisIn1_2_2();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -650,12 +664,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_2_2
 5 >                                     ()
 6 >                                       ;
-1->Emitted(30, 25) Source(17, 78) + SourceIndex(0)
-2 >Emitted(30, 27) Source(17, 80) + SourceIndex(0)
-3 >Emitted(30, 28) Source(17, 81) + SourceIndex(0)
-4 >Emitted(30, 38) Source(17, 91) + SourceIndex(0)
-5 >Emitted(30, 40) Source(17, 93) + SourceIndex(0)
-6 >Emitted(30, 41) Source(17, 94) + SourceIndex(0)
+1->Emitted(44, 25) Source(17, 78) + SourceIndex(0)
+2 >Emitted(44, 27) Source(17, 80) + SourceIndex(0)
+3 >Emitted(44, 28) Source(17, 81) + SourceIndex(0)
+4 >Emitted(44, 38) Source(17, 91) + SourceIndex(0)
+5 >Emitted(44, 40) Source(17, 93) + SourceIndex(0)
+6 >Emitted(44, 41) Source(17, 94) + SourceIndex(0)
 ---
 >>>                        // Interface reference
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -664,8 +678,8 @@ sourceFile:typeResolution.ts
   >                    
   >                    
 2 >                        // Interface reference
-1->Emitted(31, 25) Source(19, 21) + SourceIndex(0)
-2 >Emitted(31, 47) Source(19, 43) + SourceIndex(0)
+1->Emitted(45, 25) Source(19, 21) + SourceIndex(0)
+2 >Emitted(45, 47) Source(19, 43) + SourceIndex(0)
 ---
 >>>                        var d1;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -678,10 +692,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            d1: InterfaceX
 4 >                              ;
-1 >Emitted(32, 25) Source(20, 21) + SourceIndex(0)
-2 >Emitted(32, 29) Source(20, 25) + SourceIndex(0)
-3 >Emitted(32, 31) Source(20, 39) + SourceIndex(0)
-4 >Emitted(32, 32) Source(20, 40) + SourceIndex(0)
+1 >Emitted(46, 25) Source(20, 21) + SourceIndex(0)
+2 >Emitted(46, 29) Source(20, 25) + SourceIndex(0)
+3 >Emitted(46, 31) Source(20, 39) + SourceIndex(0)
+4 >Emitted(46, 32) Source(20, 40) + SourceIndex(0)
 ---
 >>>                        d1.XisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -696,12 +710,12 @@ sourceFile:typeResolution.ts
 4 >                           XisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(33, 25) Source(20, 41) + SourceIndex(0)
-2 >Emitted(33, 27) Source(20, 43) + SourceIndex(0)
-3 >Emitted(33, 28) Source(20, 44) + SourceIndex(0)
-4 >Emitted(33, 38) Source(20, 54) + SourceIndex(0)
-5 >Emitted(33, 40) Source(20, 56) + SourceIndex(0)
-6 >Emitted(33, 41) Source(20, 57) + SourceIndex(0)
+1->Emitted(47, 25) Source(20, 41) + SourceIndex(0)
+2 >Emitted(47, 27) Source(20, 43) + SourceIndex(0)
+3 >Emitted(47, 28) Source(20, 44) + SourceIndex(0)
+4 >Emitted(47, 38) Source(20, 54) + SourceIndex(0)
+5 >Emitted(47, 40) Source(20, 56) + SourceIndex(0)
+6 >Emitted(47, 41) Source(20, 57) + SourceIndex(0)
 ---
 >>>                        var d2;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -714,10 +728,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            d2: SubSubModule1.InterfaceX
 4 >                              ;
-1 >Emitted(34, 25) Source(21, 21) + SourceIndex(0)
-2 >Emitted(34, 29) Source(21, 25) + SourceIndex(0)
-3 >Emitted(34, 31) Source(21, 53) + SourceIndex(0)
-4 >Emitted(34, 32) Source(21, 54) + SourceIndex(0)
+1 >Emitted(48, 25) Source(21, 21) + SourceIndex(0)
+2 >Emitted(48, 29) Source(21, 25) + SourceIndex(0)
+3 >Emitted(48, 31) Source(21, 53) + SourceIndex(0)
+4 >Emitted(48, 32) Source(21, 54) + SourceIndex(0)
 ---
 >>>                        d2.XisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -732,31 +746,32 @@ sourceFile:typeResolution.ts
 4 >                           XisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(35, 25) Source(21, 55) + SourceIndex(0)
-2 >Emitted(35, 27) Source(21, 57) + SourceIndex(0)
-3 >Emitted(35, 28) Source(21, 58) + SourceIndex(0)
-4 >Emitted(35, 38) Source(21, 68) + SourceIndex(0)
-5 >Emitted(35, 40) Source(21, 70) + SourceIndex(0)
-6 >Emitted(35, 41) Source(21, 71) + SourceIndex(0)
+1->Emitted(49, 25) Source(21, 55) + SourceIndex(0)
+2 >Emitted(49, 27) Source(21, 57) + SourceIndex(0)
+3 >Emitted(49, 28) Source(21, 58) + SourceIndex(0)
+4 >Emitted(49, 38) Source(21, 68) + SourceIndex(0)
+5 >Emitted(49, 40) Source(21, 70) + SourceIndex(0)
+6 >Emitted(49, 41) Source(21, 71) + SourceIndex(0)
 ---
 >>>                    };
 1 >^^^^^^^^^^^^^^^^^^^^
 2 >                    ^
-3 >                     ^^^^^^^^^^^^^^->
+3 >                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >                
 2 >                    }
-1 >Emitted(36, 21) Source(22, 17) + SourceIndex(0)
-2 >Emitted(36, 22) Source(22, 18) + SourceIndex(0)
+1 >Emitted(50, 21) Source(22, 17) + SourceIndex(0)
+2 >Emitted(50, 22) Source(22, 18) + SourceIndex(0)
 ---
+>>>                    __names(ClassA.prototype, ["AisIn1_1_1"]);
 >>>                    return ClassA;
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^^^
 1->
   >            
 2 >                    }
-1->Emitted(37, 21) Source(23, 13) + SourceIndex(0)
-2 >Emitted(37, 34) Source(23, 14) + SourceIndex(0)
+1->Emitted(52, 21) Source(23, 13) + SourceIndex(0)
+2 >Emitted(52, 34) Source(23, 14) + SourceIndex(0)
 ---
 >>>                }());
 1 >^^^^^^^^^^^^^^^^
@@ -787,10 +802,10 @@ sourceFile:typeResolution.ts
   >                                     var d2: SubSubModule1.InterfaceX; d2.XisIn1_1_1();
   >                                 }
   >                             }
-1 >Emitted(38, 17) Source(23, 13) + SourceIndex(0)
-2 >Emitted(38, 18) Source(23, 14) + SourceIndex(0)
-3 >Emitted(38, 18) Source(4, 13) + SourceIndex(0)
-4 >Emitted(38, 22) Source(23, 14) + SourceIndex(0)
+1 >Emitted(53, 17) Source(23, 13) + SourceIndex(0)
+2 >Emitted(53, 18) Source(23, 14) + SourceIndex(0)
+3 >Emitted(53, 18) Source(4, 13) + SourceIndex(0)
+4 >Emitted(53, 22) Source(23, 14) + SourceIndex(0)
 ---
 >>>                SubSubModule1.ClassA = ClassA;
 1->^^^^^^^^^^^^^^^^
@@ -820,23 +835,23 @@ sourceFile:typeResolution.ts
   >                                                    }
   >                                                }
 4 >                                             
-1->Emitted(39, 17) Source(4, 26) + SourceIndex(0)
-2 >Emitted(39, 37) Source(4, 32) + SourceIndex(0)
-3 >Emitted(39, 46) Source(23, 14) + SourceIndex(0)
-4 >Emitted(39, 47) Source(23, 14) + SourceIndex(0)
+1->Emitted(54, 17) Source(4, 26) + SourceIndex(0)
+2 >Emitted(54, 37) Source(4, 32) + SourceIndex(0)
+3 >Emitted(54, 46) Source(23, 14) + SourceIndex(0)
+4 >Emitted(54, 47) Source(23, 14) + SourceIndex(0)
 ---
 >>>                var ClassB = (function () {
 1 >^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >            
-1 >Emitted(40, 17) Source(24, 13) + SourceIndex(0)
+1 >Emitted(55, 17) Source(24, 13) + SourceIndex(0)
 ---
 >>>                    function ClassB() {
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^->
 1->
-1->Emitted(41, 21) Source(24, 13) + SourceIndex(0)
+1->Emitted(56, 21) Source(24, 13) + SourceIndex(0)
 ---
 >>>                    }
 1->^^^^^^^^^^^^^^^^^^^^
@@ -866,8 +881,8 @@ sourceFile:typeResolution.ts
   >                }
   >            
 2 >                    }
-1->Emitted(42, 21) Source(46, 13) + SourceIndex(0)
-2 >Emitted(42, 22) Source(46, 14) + SourceIndex(0)
+1->Emitted(57, 21) Source(46, 13) + SourceIndex(0)
+2 >Emitted(57, 22) Source(46, 14) + SourceIndex(0)
 ---
 >>>                    ClassB.prototype.BisIn1_1_1 = function () {
 1->^^^^^^^^^^^^^^^^^^^^
@@ -877,9 +892,9 @@ sourceFile:typeResolution.ts
 1->
 2 >                    BisIn1_1_1
 3 >                                               
-1->Emitted(43, 21) Source(25, 24) + SourceIndex(0)
-2 >Emitted(43, 48) Source(25, 34) + SourceIndex(0)
-3 >Emitted(43, 51) Source(25, 17) + SourceIndex(0)
+1->Emitted(58, 21) Source(25, 24) + SourceIndex(0)
+2 >Emitted(58, 48) Source(25, 34) + SourceIndex(0)
+3 >Emitted(58, 51) Source(25, 17) + SourceIndex(0)
 ---
 >>>                        /** Exactly the same as above in AisIn1_1_1 **/
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -887,8 +902,8 @@ sourceFile:typeResolution.ts
 1->public BisIn1_1_1() {
   >                    
 2 >                        /** Exactly the same as above in AisIn1_1_1 **/
-1->Emitted(44, 25) Source(26, 21) + SourceIndex(0)
-2 >Emitted(44, 72) Source(26, 68) + SourceIndex(0)
+1->Emitted(59, 25) Source(26, 21) + SourceIndex(0)
+2 >Emitted(59, 72) Source(26, 68) + SourceIndex(0)
 ---
 >>>                        // Try all qualified names of this type
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -897,8 +912,8 @@ sourceFile:typeResolution.ts
   >                    
   >                    
 2 >                        // Try all qualified names of this type
-1 >Emitted(45, 25) Source(28, 21) + SourceIndex(0)
-2 >Emitted(45, 64) Source(28, 60) + SourceIndex(0)
+1 >Emitted(60, 25) Source(28, 21) + SourceIndex(0)
+2 >Emitted(60, 64) Source(28, 60) + SourceIndex(0)
 ---
 >>>                        var a1;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -911,10 +926,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            a1: ClassA
 4 >                              ;
-1 >Emitted(46, 25) Source(29, 21) + SourceIndex(0)
-2 >Emitted(46, 29) Source(29, 25) + SourceIndex(0)
-3 >Emitted(46, 31) Source(29, 35) + SourceIndex(0)
-4 >Emitted(46, 32) Source(29, 36) + SourceIndex(0)
+1 >Emitted(61, 25) Source(29, 21) + SourceIndex(0)
+2 >Emitted(61, 29) Source(29, 25) + SourceIndex(0)
+3 >Emitted(61, 31) Source(29, 35) + SourceIndex(0)
+4 >Emitted(61, 32) Source(29, 36) + SourceIndex(0)
 ---
 >>>                        a1.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -929,12 +944,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(47, 25) Source(29, 37) + SourceIndex(0)
-2 >Emitted(47, 27) Source(29, 39) + SourceIndex(0)
-3 >Emitted(47, 28) Source(29, 40) + SourceIndex(0)
-4 >Emitted(47, 38) Source(29, 50) + SourceIndex(0)
-5 >Emitted(47, 40) Source(29, 52) + SourceIndex(0)
-6 >Emitted(47, 41) Source(29, 53) + SourceIndex(0)
+1->Emitted(62, 25) Source(29, 37) + SourceIndex(0)
+2 >Emitted(62, 27) Source(29, 39) + SourceIndex(0)
+3 >Emitted(62, 28) Source(29, 40) + SourceIndex(0)
+4 >Emitted(62, 38) Source(29, 50) + SourceIndex(0)
+5 >Emitted(62, 40) Source(29, 52) + SourceIndex(0)
+6 >Emitted(62, 41) Source(29, 53) + SourceIndex(0)
 ---
 >>>                        var a2;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -947,10 +962,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            a2: SubSubModule1.ClassA
 4 >                              ;
-1 >Emitted(48, 25) Source(30, 21) + SourceIndex(0)
-2 >Emitted(48, 29) Source(30, 25) + SourceIndex(0)
-3 >Emitted(48, 31) Source(30, 49) + SourceIndex(0)
-4 >Emitted(48, 32) Source(30, 50) + SourceIndex(0)
+1 >Emitted(63, 25) Source(30, 21) + SourceIndex(0)
+2 >Emitted(63, 29) Source(30, 25) + SourceIndex(0)
+3 >Emitted(63, 31) Source(30, 49) + SourceIndex(0)
+4 >Emitted(63, 32) Source(30, 50) + SourceIndex(0)
 ---
 >>>                        a2.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -965,12 +980,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(49, 25) Source(30, 51) + SourceIndex(0)
-2 >Emitted(49, 27) Source(30, 53) + SourceIndex(0)
-3 >Emitted(49, 28) Source(30, 54) + SourceIndex(0)
-4 >Emitted(49, 38) Source(30, 64) + SourceIndex(0)
-5 >Emitted(49, 40) Source(30, 66) + SourceIndex(0)
-6 >Emitted(49, 41) Source(30, 67) + SourceIndex(0)
+1->Emitted(64, 25) Source(30, 51) + SourceIndex(0)
+2 >Emitted(64, 27) Source(30, 53) + SourceIndex(0)
+3 >Emitted(64, 28) Source(30, 54) + SourceIndex(0)
+4 >Emitted(64, 38) Source(30, 64) + SourceIndex(0)
+5 >Emitted(64, 40) Source(30, 66) + SourceIndex(0)
+6 >Emitted(64, 41) Source(30, 67) + SourceIndex(0)
 ---
 >>>                        var a3;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -983,10 +998,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            a3: SubModule1.SubSubModule1.ClassA
 4 >                              ;
-1 >Emitted(50, 25) Source(31, 21) + SourceIndex(0)
-2 >Emitted(50, 29) Source(31, 25) + SourceIndex(0)
-3 >Emitted(50, 31) Source(31, 60) + SourceIndex(0)
-4 >Emitted(50, 32) Source(31, 61) + SourceIndex(0)
+1 >Emitted(65, 25) Source(31, 21) + SourceIndex(0)
+2 >Emitted(65, 29) Source(31, 25) + SourceIndex(0)
+3 >Emitted(65, 31) Source(31, 60) + SourceIndex(0)
+4 >Emitted(65, 32) Source(31, 61) + SourceIndex(0)
 ---
 >>>                        a3.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1001,12 +1016,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(51, 25) Source(31, 62) + SourceIndex(0)
-2 >Emitted(51, 27) Source(31, 64) + SourceIndex(0)
-3 >Emitted(51, 28) Source(31, 65) + SourceIndex(0)
-4 >Emitted(51, 38) Source(31, 75) + SourceIndex(0)
-5 >Emitted(51, 40) Source(31, 77) + SourceIndex(0)
-6 >Emitted(51, 41) Source(31, 78) + SourceIndex(0)
+1->Emitted(66, 25) Source(31, 62) + SourceIndex(0)
+2 >Emitted(66, 27) Source(31, 64) + SourceIndex(0)
+3 >Emitted(66, 28) Source(31, 65) + SourceIndex(0)
+4 >Emitted(66, 38) Source(31, 75) + SourceIndex(0)
+5 >Emitted(66, 40) Source(31, 77) + SourceIndex(0)
+6 >Emitted(66, 41) Source(31, 78) + SourceIndex(0)
 ---
 >>>                        var a4;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1019,10 +1034,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            a4: TopLevelModule1.SubModule1.SubSubModule1.ClassA
 4 >                              ;
-1 >Emitted(52, 25) Source(32, 21) + SourceIndex(0)
-2 >Emitted(52, 29) Source(32, 25) + SourceIndex(0)
-3 >Emitted(52, 31) Source(32, 76) + SourceIndex(0)
-4 >Emitted(52, 32) Source(32, 77) + SourceIndex(0)
+1 >Emitted(67, 25) Source(32, 21) + SourceIndex(0)
+2 >Emitted(67, 29) Source(32, 25) + SourceIndex(0)
+3 >Emitted(67, 31) Source(32, 76) + SourceIndex(0)
+4 >Emitted(67, 32) Source(32, 77) + SourceIndex(0)
 ---
 >>>                        a4.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1038,12 +1053,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(53, 25) Source(32, 78) + SourceIndex(0)
-2 >Emitted(53, 27) Source(32, 80) + SourceIndex(0)
-3 >Emitted(53, 28) Source(32, 81) + SourceIndex(0)
-4 >Emitted(53, 38) Source(32, 91) + SourceIndex(0)
-5 >Emitted(53, 40) Source(32, 93) + SourceIndex(0)
-6 >Emitted(53, 41) Source(32, 94) + SourceIndex(0)
+1->Emitted(68, 25) Source(32, 78) + SourceIndex(0)
+2 >Emitted(68, 27) Source(32, 80) + SourceIndex(0)
+3 >Emitted(68, 28) Source(32, 81) + SourceIndex(0)
+4 >Emitted(68, 38) Source(32, 91) + SourceIndex(0)
+5 >Emitted(68, 40) Source(32, 93) + SourceIndex(0)
+6 >Emitted(68, 41) Source(32, 94) + SourceIndex(0)
 ---
 >>>                        // Two variants of qualifying a peer type
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1052,8 +1067,8 @@ sourceFile:typeResolution.ts
   >                    
   >                    
 2 >                        // Two variants of qualifying a peer type
-1->Emitted(54, 25) Source(34, 21) + SourceIndex(0)
-2 >Emitted(54, 66) Source(34, 62) + SourceIndex(0)
+1->Emitted(69, 25) Source(34, 21) + SourceIndex(0)
+2 >Emitted(69, 66) Source(34, 62) + SourceIndex(0)
 ---
 >>>                        var b1;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1066,10 +1081,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            b1: ClassB
 4 >                              ;
-1 >Emitted(55, 25) Source(35, 21) + SourceIndex(0)
-2 >Emitted(55, 29) Source(35, 25) + SourceIndex(0)
-3 >Emitted(55, 31) Source(35, 35) + SourceIndex(0)
-4 >Emitted(55, 32) Source(35, 36) + SourceIndex(0)
+1 >Emitted(70, 25) Source(35, 21) + SourceIndex(0)
+2 >Emitted(70, 29) Source(35, 25) + SourceIndex(0)
+3 >Emitted(70, 31) Source(35, 35) + SourceIndex(0)
+4 >Emitted(70, 32) Source(35, 36) + SourceIndex(0)
 ---
 >>>                        b1.BisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1084,12 +1099,12 @@ sourceFile:typeResolution.ts
 4 >                           BisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(56, 25) Source(35, 37) + SourceIndex(0)
-2 >Emitted(56, 27) Source(35, 39) + SourceIndex(0)
-3 >Emitted(56, 28) Source(35, 40) + SourceIndex(0)
-4 >Emitted(56, 38) Source(35, 50) + SourceIndex(0)
-5 >Emitted(56, 40) Source(35, 52) + SourceIndex(0)
-6 >Emitted(56, 41) Source(35, 53) + SourceIndex(0)
+1->Emitted(71, 25) Source(35, 37) + SourceIndex(0)
+2 >Emitted(71, 27) Source(35, 39) + SourceIndex(0)
+3 >Emitted(71, 28) Source(35, 40) + SourceIndex(0)
+4 >Emitted(71, 38) Source(35, 50) + SourceIndex(0)
+5 >Emitted(71, 40) Source(35, 52) + SourceIndex(0)
+6 >Emitted(71, 41) Source(35, 53) + SourceIndex(0)
 ---
 >>>                        var b2;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1102,10 +1117,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            b2: TopLevelModule1.SubModule1.SubSubModule1.ClassB
 4 >                              ;
-1 >Emitted(57, 25) Source(36, 21) + SourceIndex(0)
-2 >Emitted(57, 29) Source(36, 25) + SourceIndex(0)
-3 >Emitted(57, 31) Source(36, 76) + SourceIndex(0)
-4 >Emitted(57, 32) Source(36, 77) + SourceIndex(0)
+1 >Emitted(72, 25) Source(36, 21) + SourceIndex(0)
+2 >Emitted(72, 29) Source(36, 25) + SourceIndex(0)
+3 >Emitted(72, 31) Source(36, 76) + SourceIndex(0)
+4 >Emitted(72, 32) Source(36, 77) + SourceIndex(0)
 ---
 >>>                        b2.BisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1121,12 +1136,12 @@ sourceFile:typeResolution.ts
 4 >                           BisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(58, 25) Source(36, 78) + SourceIndex(0)
-2 >Emitted(58, 27) Source(36, 80) + SourceIndex(0)
-3 >Emitted(58, 28) Source(36, 81) + SourceIndex(0)
-4 >Emitted(58, 38) Source(36, 91) + SourceIndex(0)
-5 >Emitted(58, 40) Source(36, 93) + SourceIndex(0)
-6 >Emitted(58, 41) Source(36, 94) + SourceIndex(0)
+1->Emitted(73, 25) Source(36, 78) + SourceIndex(0)
+2 >Emitted(73, 27) Source(36, 80) + SourceIndex(0)
+3 >Emitted(73, 28) Source(36, 81) + SourceIndex(0)
+4 >Emitted(73, 38) Source(36, 91) + SourceIndex(0)
+5 >Emitted(73, 40) Source(36, 93) + SourceIndex(0)
+6 >Emitted(73, 41) Source(36, 94) + SourceIndex(0)
 ---
 >>>                        // Type only accessible from the root
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1135,8 +1150,8 @@ sourceFile:typeResolution.ts
   >                    
   >                    
 2 >                        // Type only accessible from the root
-1->Emitted(59, 25) Source(38, 21) + SourceIndex(0)
-2 >Emitted(59, 62) Source(38, 58) + SourceIndex(0)
+1->Emitted(74, 25) Source(38, 21) + SourceIndex(0)
+2 >Emitted(74, 62) Source(38, 58) + SourceIndex(0)
 ---
 >>>                        var c1;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1149,10 +1164,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            c1: TopLevelModule1.SubModule2.SubSubModule2.ClassA
 4 >                              ;
-1 >Emitted(60, 25) Source(39, 21) + SourceIndex(0)
-2 >Emitted(60, 29) Source(39, 25) + SourceIndex(0)
-3 >Emitted(60, 31) Source(39, 76) + SourceIndex(0)
-4 >Emitted(60, 32) Source(39, 77) + SourceIndex(0)
+1 >Emitted(75, 25) Source(39, 21) + SourceIndex(0)
+2 >Emitted(75, 29) Source(39, 25) + SourceIndex(0)
+3 >Emitted(75, 31) Source(39, 76) + SourceIndex(0)
+4 >Emitted(75, 32) Source(39, 77) + SourceIndex(0)
 ---
 >>>                        c1.AisIn1_2_2();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1167,12 +1182,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_2_2
 5 >                                     ()
 6 >                                       ;
-1->Emitted(61, 25) Source(39, 78) + SourceIndex(0)
-2 >Emitted(61, 27) Source(39, 80) + SourceIndex(0)
-3 >Emitted(61, 28) Source(39, 81) + SourceIndex(0)
-4 >Emitted(61, 38) Source(39, 91) + SourceIndex(0)
-5 >Emitted(61, 40) Source(39, 93) + SourceIndex(0)
-6 >Emitted(61, 41) Source(39, 94) + SourceIndex(0)
+1->Emitted(76, 25) Source(39, 78) + SourceIndex(0)
+2 >Emitted(76, 27) Source(39, 80) + SourceIndex(0)
+3 >Emitted(76, 28) Source(39, 81) + SourceIndex(0)
+4 >Emitted(76, 38) Source(39, 91) + SourceIndex(0)
+5 >Emitted(76, 40) Source(39, 93) + SourceIndex(0)
+6 >Emitted(76, 41) Source(39, 94) + SourceIndex(0)
 ---
 >>>                        var c2;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1185,10 +1200,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            c2: TopLevelModule2.SubModule3.ClassA
 4 >                              ;
-1 >Emitted(62, 25) Source(40, 21) + SourceIndex(0)
-2 >Emitted(62, 29) Source(40, 25) + SourceIndex(0)
-3 >Emitted(62, 31) Source(40, 62) + SourceIndex(0)
-4 >Emitted(62, 32) Source(40, 63) + SourceIndex(0)
+1 >Emitted(77, 25) Source(40, 21) + SourceIndex(0)
+2 >Emitted(77, 29) Source(40, 25) + SourceIndex(0)
+3 >Emitted(77, 31) Source(40, 62) + SourceIndex(0)
+4 >Emitted(77, 32) Source(40, 63) + SourceIndex(0)
 ---
 >>>                        c2.AisIn2_3();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1204,12 +1219,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn2_3
 5 >                                   ()
 6 >                                     ;
-1->Emitted(63, 25) Source(40, 64) + SourceIndex(0)
-2 >Emitted(63, 27) Source(40, 66) + SourceIndex(0)
-3 >Emitted(63, 28) Source(40, 67) + SourceIndex(0)
-4 >Emitted(63, 36) Source(40, 75) + SourceIndex(0)
-5 >Emitted(63, 38) Source(40, 77) + SourceIndex(0)
-6 >Emitted(63, 39) Source(40, 78) + SourceIndex(0)
+1->Emitted(78, 25) Source(40, 64) + SourceIndex(0)
+2 >Emitted(78, 27) Source(40, 66) + SourceIndex(0)
+3 >Emitted(78, 28) Source(40, 67) + SourceIndex(0)
+4 >Emitted(78, 36) Source(40, 75) + SourceIndex(0)
+5 >Emitted(78, 38) Source(40, 77) + SourceIndex(0)
+6 >Emitted(78, 39) Source(40, 78) + SourceIndex(0)
 ---
 >>>                        // Interface reference
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1218,8 +1233,8 @@ sourceFile:typeResolution.ts
   >                    
   >                    
 2 >                        // Interface reference
-1->Emitted(64, 25) Source(42, 21) + SourceIndex(0)
-2 >Emitted(64, 47) Source(42, 43) + SourceIndex(0)
+1->Emitted(79, 25) Source(42, 21) + SourceIndex(0)
+2 >Emitted(79, 47) Source(42, 43) + SourceIndex(0)
 ---
 >>>                        var d1;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1232,10 +1247,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            d1: InterfaceX
 4 >                              ;
-1 >Emitted(65, 25) Source(43, 21) + SourceIndex(0)
-2 >Emitted(65, 29) Source(43, 25) + SourceIndex(0)
-3 >Emitted(65, 31) Source(43, 39) + SourceIndex(0)
-4 >Emitted(65, 32) Source(43, 40) + SourceIndex(0)
+1 >Emitted(80, 25) Source(43, 21) + SourceIndex(0)
+2 >Emitted(80, 29) Source(43, 25) + SourceIndex(0)
+3 >Emitted(80, 31) Source(43, 39) + SourceIndex(0)
+4 >Emitted(80, 32) Source(43, 40) + SourceIndex(0)
 ---
 >>>                        d1.XisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1250,12 +1265,12 @@ sourceFile:typeResolution.ts
 4 >                           XisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(66, 25) Source(43, 41) + SourceIndex(0)
-2 >Emitted(66, 27) Source(43, 43) + SourceIndex(0)
-3 >Emitted(66, 28) Source(43, 44) + SourceIndex(0)
-4 >Emitted(66, 38) Source(43, 54) + SourceIndex(0)
-5 >Emitted(66, 40) Source(43, 56) + SourceIndex(0)
-6 >Emitted(66, 41) Source(43, 57) + SourceIndex(0)
+1->Emitted(81, 25) Source(43, 41) + SourceIndex(0)
+2 >Emitted(81, 27) Source(43, 43) + SourceIndex(0)
+3 >Emitted(81, 28) Source(43, 44) + SourceIndex(0)
+4 >Emitted(81, 38) Source(43, 54) + SourceIndex(0)
+5 >Emitted(81, 40) Source(43, 56) + SourceIndex(0)
+6 >Emitted(81, 41) Source(43, 57) + SourceIndex(0)
 ---
 >>>                        var d2;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1268,10 +1283,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            d2: SubSubModule1.InterfaceX
 4 >                              ;
-1 >Emitted(67, 25) Source(44, 21) + SourceIndex(0)
-2 >Emitted(67, 29) Source(44, 25) + SourceIndex(0)
-3 >Emitted(67, 31) Source(44, 53) + SourceIndex(0)
-4 >Emitted(67, 32) Source(44, 54) + SourceIndex(0)
+1 >Emitted(82, 25) Source(44, 21) + SourceIndex(0)
+2 >Emitted(82, 29) Source(44, 25) + SourceIndex(0)
+3 >Emitted(82, 31) Source(44, 53) + SourceIndex(0)
+4 >Emitted(82, 32) Source(44, 54) + SourceIndex(0)
 ---
 >>>                        d2.XisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1286,31 +1301,32 @@ sourceFile:typeResolution.ts
 4 >                           XisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(68, 25) Source(44, 55) + SourceIndex(0)
-2 >Emitted(68, 27) Source(44, 57) + SourceIndex(0)
-3 >Emitted(68, 28) Source(44, 58) + SourceIndex(0)
-4 >Emitted(68, 38) Source(44, 68) + SourceIndex(0)
-5 >Emitted(68, 40) Source(44, 70) + SourceIndex(0)
-6 >Emitted(68, 41) Source(44, 71) + SourceIndex(0)
+1->Emitted(83, 25) Source(44, 55) + SourceIndex(0)
+2 >Emitted(83, 27) Source(44, 57) + SourceIndex(0)
+3 >Emitted(83, 28) Source(44, 58) + SourceIndex(0)
+4 >Emitted(83, 38) Source(44, 68) + SourceIndex(0)
+5 >Emitted(83, 40) Source(44, 70) + SourceIndex(0)
+6 >Emitted(83, 41) Source(44, 71) + SourceIndex(0)
 ---
 >>>                    };
 1 >^^^^^^^^^^^^^^^^^^^^
 2 >                    ^
-3 >                     ^^^^^^^^^^^^^^->
+3 >                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >                
 2 >                    }
-1 >Emitted(69, 21) Source(45, 17) + SourceIndex(0)
-2 >Emitted(69, 22) Source(45, 18) + SourceIndex(0)
+1 >Emitted(84, 21) Source(45, 17) + SourceIndex(0)
+2 >Emitted(84, 22) Source(45, 18) + SourceIndex(0)
 ---
+>>>                    __names(ClassB.prototype, ["BisIn1_1_1"]);
 >>>                    return ClassB;
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^^^
 1->
   >            
 2 >                    }
-1->Emitted(70, 21) Source(46, 13) + SourceIndex(0)
-2 >Emitted(70, 34) Source(46, 14) + SourceIndex(0)
+1->Emitted(86, 21) Source(46, 13) + SourceIndex(0)
+2 >Emitted(86, 34) Source(46, 14) + SourceIndex(0)
 ---
 >>>                }());
 1 >^^^^^^^^^^^^^^^^
@@ -1344,10 +1360,10 @@ sourceFile:typeResolution.ts
   >                                     var d2: SubSubModule1.InterfaceX; d2.XisIn1_1_1();
   >                                 }
   >                             }
-1 >Emitted(71, 17) Source(46, 13) + SourceIndex(0)
-2 >Emitted(71, 18) Source(46, 14) + SourceIndex(0)
-3 >Emitted(71, 18) Source(24, 13) + SourceIndex(0)
-4 >Emitted(71, 22) Source(46, 14) + SourceIndex(0)
+1 >Emitted(87, 17) Source(46, 13) + SourceIndex(0)
+2 >Emitted(87, 18) Source(46, 14) + SourceIndex(0)
+3 >Emitted(87, 18) Source(24, 13) + SourceIndex(0)
+4 >Emitted(87, 22) Source(46, 14) + SourceIndex(0)
 ---
 >>>                SubSubModule1.ClassB = ClassB;
 1->^^^^^^^^^^^^^^^^
@@ -1381,10 +1397,10 @@ sourceFile:typeResolution.ts
   >                                                    }
   >                                                }
 4 >                                             
-1->Emitted(72, 17) Source(24, 26) + SourceIndex(0)
-2 >Emitted(72, 37) Source(24, 32) + SourceIndex(0)
-3 >Emitted(72, 46) Source(46, 14) + SourceIndex(0)
-4 >Emitted(72, 47) Source(46, 14) + SourceIndex(0)
+1->Emitted(88, 17) Source(24, 26) + SourceIndex(0)
+2 >Emitted(88, 37) Source(24, 32) + SourceIndex(0)
+3 >Emitted(88, 46) Source(46, 14) + SourceIndex(0)
+4 >Emitted(88, 47) Source(46, 14) + SourceIndex(0)
 ---
 >>>                var NonExportedClassQ = (function () {
 1->^^^^^^^^^^^^^^^^
@@ -1392,21 +1408,21 @@ sourceFile:typeResolution.ts
 1->
   >            export interface InterfaceX { XisIn1_1_1(); }
   >            
-1->Emitted(73, 17) Source(48, 13) + SourceIndex(0)
+1->Emitted(89, 17) Source(48, 13) + SourceIndex(0)
 ---
 >>>                    function NonExportedClassQ() {
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^^^^^^^^^^->
 1->class NonExportedClassQ {
   >                
-1->Emitted(74, 21) Source(49, 17) + SourceIndex(0)
+1->Emitted(90, 21) Source(49, 17) + SourceIndex(0)
 ---
 >>>                        function QQ() {
 1->^^^^^^^^^^^^^^^^^^^^^^^^
 2 >                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->constructor() {
   >                    
-1->Emitted(75, 25) Source(50, 21) + SourceIndex(0)
+1->Emitted(91, 25) Source(50, 21) + SourceIndex(0)
 ---
 >>>                            /* Sampling of stuff from AisIn1_1_1 */
 1->^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1414,8 +1430,8 @@ sourceFile:typeResolution.ts
 1->function QQ() {
   >                        
 2 >                            /* Sampling of stuff from AisIn1_1_1 */
-1->Emitted(76, 29) Source(51, 25) + SourceIndex(0)
-2 >Emitted(76, 68) Source(51, 64) + SourceIndex(0)
+1->Emitted(92, 29) Source(51, 25) + SourceIndex(0)
+2 >Emitted(92, 68) Source(51, 64) + SourceIndex(0)
 ---
 >>>                            var a4;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1428,10 +1444,10 @@ sourceFile:typeResolution.ts
 2 >                            var 
 3 >                                a4: TopLevelModule1.SubModule1.SubSubModule1.ClassA
 4 >                                  ;
-1 >Emitted(77, 29) Source(52, 25) + SourceIndex(0)
-2 >Emitted(77, 33) Source(52, 29) + SourceIndex(0)
-3 >Emitted(77, 35) Source(52, 80) + SourceIndex(0)
-4 >Emitted(77, 36) Source(52, 81) + SourceIndex(0)
+1 >Emitted(93, 29) Source(52, 25) + SourceIndex(0)
+2 >Emitted(93, 33) Source(52, 29) + SourceIndex(0)
+3 >Emitted(93, 35) Source(52, 80) + SourceIndex(0)
+4 >Emitted(93, 36) Source(52, 81) + SourceIndex(0)
 ---
 >>>                            a4.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1446,12 +1462,12 @@ sourceFile:typeResolution.ts
 4 >                               AisIn1_1_1
 5 >                                         ()
 6 >                                           ;
-1->Emitted(78, 29) Source(52, 82) + SourceIndex(0)
-2 >Emitted(78, 31) Source(52, 84) + SourceIndex(0)
-3 >Emitted(78, 32) Source(52, 85) + SourceIndex(0)
-4 >Emitted(78, 42) Source(52, 95) + SourceIndex(0)
-5 >Emitted(78, 44) Source(52, 97) + SourceIndex(0)
-6 >Emitted(78, 45) Source(52, 98) + SourceIndex(0)
+1->Emitted(94, 29) Source(52, 82) + SourceIndex(0)
+2 >Emitted(94, 31) Source(52, 84) + SourceIndex(0)
+3 >Emitted(94, 32) Source(52, 85) + SourceIndex(0)
+4 >Emitted(94, 42) Source(52, 95) + SourceIndex(0)
+5 >Emitted(94, 44) Source(52, 97) + SourceIndex(0)
+6 >Emitted(94, 45) Source(52, 98) + SourceIndex(0)
 ---
 >>>                            var c1;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1464,10 +1480,10 @@ sourceFile:typeResolution.ts
 2 >                            var 
 3 >                                c1: TopLevelModule1.SubModule2.SubSubModule2.ClassA
 4 >                                  ;
-1 >Emitted(79, 29) Source(53, 25) + SourceIndex(0)
-2 >Emitted(79, 33) Source(53, 29) + SourceIndex(0)
-3 >Emitted(79, 35) Source(53, 80) + SourceIndex(0)
-4 >Emitted(79, 36) Source(53, 81) + SourceIndex(0)
+1 >Emitted(95, 29) Source(53, 25) + SourceIndex(0)
+2 >Emitted(95, 33) Source(53, 29) + SourceIndex(0)
+3 >Emitted(95, 35) Source(53, 80) + SourceIndex(0)
+4 >Emitted(95, 36) Source(53, 81) + SourceIndex(0)
 ---
 >>>                            c1.AisIn1_2_2();
 1->^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1482,12 +1498,12 @@ sourceFile:typeResolution.ts
 4 >                               AisIn1_2_2
 5 >                                         ()
 6 >                                           ;
-1->Emitted(80, 29) Source(53, 82) + SourceIndex(0)
-2 >Emitted(80, 31) Source(53, 84) + SourceIndex(0)
-3 >Emitted(80, 32) Source(53, 85) + SourceIndex(0)
-4 >Emitted(80, 42) Source(53, 95) + SourceIndex(0)
-5 >Emitted(80, 44) Source(53, 97) + SourceIndex(0)
-6 >Emitted(80, 45) Source(53, 98) + SourceIndex(0)
+1->Emitted(96, 29) Source(53, 82) + SourceIndex(0)
+2 >Emitted(96, 31) Source(53, 84) + SourceIndex(0)
+3 >Emitted(96, 32) Source(53, 85) + SourceIndex(0)
+4 >Emitted(96, 42) Source(53, 95) + SourceIndex(0)
+5 >Emitted(96, 44) Source(53, 97) + SourceIndex(0)
+6 >Emitted(96, 45) Source(53, 98) + SourceIndex(0)
 ---
 >>>                            var d1;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1500,10 +1516,10 @@ sourceFile:typeResolution.ts
 2 >                            var 
 3 >                                d1: InterfaceX
 4 >                                  ;
-1 >Emitted(81, 29) Source(54, 25) + SourceIndex(0)
-2 >Emitted(81, 33) Source(54, 29) + SourceIndex(0)
-3 >Emitted(81, 35) Source(54, 43) + SourceIndex(0)
-4 >Emitted(81, 36) Source(54, 44) + SourceIndex(0)
+1 >Emitted(97, 29) Source(54, 25) + SourceIndex(0)
+2 >Emitted(97, 33) Source(54, 29) + SourceIndex(0)
+3 >Emitted(97, 35) Source(54, 43) + SourceIndex(0)
+4 >Emitted(97, 36) Source(54, 44) + SourceIndex(0)
 ---
 >>>                            d1.XisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1518,12 +1534,12 @@ sourceFile:typeResolution.ts
 4 >                               XisIn1_1_1
 5 >                                         ()
 6 >                                           ;
-1->Emitted(82, 29) Source(54, 45) + SourceIndex(0)
-2 >Emitted(82, 31) Source(54, 47) + SourceIndex(0)
-3 >Emitted(82, 32) Source(54, 48) + SourceIndex(0)
-4 >Emitted(82, 42) Source(54, 58) + SourceIndex(0)
-5 >Emitted(82, 44) Source(54, 60) + SourceIndex(0)
-6 >Emitted(82, 45) Source(54, 61) + SourceIndex(0)
+1->Emitted(98, 29) Source(54, 45) + SourceIndex(0)
+2 >Emitted(98, 31) Source(54, 47) + SourceIndex(0)
+3 >Emitted(98, 32) Source(54, 48) + SourceIndex(0)
+4 >Emitted(98, 42) Source(54, 58) + SourceIndex(0)
+5 >Emitted(98, 44) Source(54, 60) + SourceIndex(0)
+6 >Emitted(98, 45) Source(54, 61) + SourceIndex(0)
 ---
 >>>                            var c2;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1536,10 +1552,10 @@ sourceFile:typeResolution.ts
 2 >                            var 
 3 >                                c2: TopLevelModule2.SubModule3.ClassA
 4 >                                  ;
-1 >Emitted(83, 29) Source(55, 25) + SourceIndex(0)
-2 >Emitted(83, 33) Source(55, 29) + SourceIndex(0)
-3 >Emitted(83, 35) Source(55, 66) + SourceIndex(0)
-4 >Emitted(83, 36) Source(55, 67) + SourceIndex(0)
+1 >Emitted(99, 29) Source(55, 25) + SourceIndex(0)
+2 >Emitted(99, 33) Source(55, 29) + SourceIndex(0)
+3 >Emitted(99, 35) Source(55, 66) + SourceIndex(0)
+4 >Emitted(99, 36) Source(55, 67) + SourceIndex(0)
 ---
 >>>                            c2.AisIn2_3();
 1->^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1554,12 +1570,12 @@ sourceFile:typeResolution.ts
 4 >                               AisIn2_3
 5 >                                       ()
 6 >                                         ;
-1->Emitted(84, 29) Source(55, 68) + SourceIndex(0)
-2 >Emitted(84, 31) Source(55, 70) + SourceIndex(0)
-3 >Emitted(84, 32) Source(55, 71) + SourceIndex(0)
-4 >Emitted(84, 40) Source(55, 79) + SourceIndex(0)
-5 >Emitted(84, 42) Source(55, 81) + SourceIndex(0)
-6 >Emitted(84, 43) Source(55, 82) + SourceIndex(0)
+1->Emitted(100, 29) Source(55, 68) + SourceIndex(0)
+2 >Emitted(100, 31) Source(55, 70) + SourceIndex(0)
+3 >Emitted(100, 32) Source(55, 71) + SourceIndex(0)
+4 >Emitted(100, 40) Source(55, 79) + SourceIndex(0)
+5 >Emitted(100, 42) Source(55, 81) + SourceIndex(0)
+6 >Emitted(100, 43) Source(55, 82) + SourceIndex(0)
 ---
 >>>                        }
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1567,8 +1583,8 @@ sourceFile:typeResolution.ts
 1 >
   >                    
 2 >                        }
-1 >Emitted(85, 25) Source(56, 21) + SourceIndex(0)
-2 >Emitted(85, 26) Source(56, 22) + SourceIndex(0)
+1 >Emitted(101, 25) Source(56, 21) + SourceIndex(0)
+2 >Emitted(101, 26) Source(56, 22) + SourceIndex(0)
 ---
 >>>                    }
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -1577,8 +1593,8 @@ sourceFile:typeResolution.ts
 1 >
   >                
 2 >                    }
-1 >Emitted(86, 21) Source(57, 17) + SourceIndex(0)
-2 >Emitted(86, 22) Source(57, 18) + SourceIndex(0)
+1 >Emitted(102, 21) Source(57, 17) + SourceIndex(0)
+2 >Emitted(102, 22) Source(57, 18) + SourceIndex(0)
 ---
 >>>                    return NonExportedClassQ;
 1->^^^^^^^^^^^^^^^^^^^^
@@ -1586,8 +1602,8 @@ sourceFile:typeResolution.ts
 1->
   >            
 2 >                    }
-1->Emitted(87, 21) Source(58, 13) + SourceIndex(0)
-2 >Emitted(87, 45) Source(58, 14) + SourceIndex(0)
+1->Emitted(103, 21) Source(58, 13) + SourceIndex(0)
+2 >Emitted(103, 45) Source(58, 14) + SourceIndex(0)
 ---
 >>>                }());
 1 >^^^^^^^^^^^^^^^^
@@ -1609,10 +1625,10 @@ sourceFile:typeResolution.ts
   >                                     }
   >                                 }
   >                             }
-1 >Emitted(88, 17) Source(58, 13) + SourceIndex(0)
-2 >Emitted(88, 18) Source(58, 14) + SourceIndex(0)
-3 >Emitted(88, 18) Source(48, 13) + SourceIndex(0)
-4 >Emitted(88, 22) Source(58, 14) + SourceIndex(0)
+1 >Emitted(104, 17) Source(58, 13) + SourceIndex(0)
+2 >Emitted(104, 18) Source(58, 14) + SourceIndex(0)
+3 >Emitted(104, 18) Source(48, 13) + SourceIndex(0)
+4 >Emitted(104, 22) Source(58, 14) + SourceIndex(0)
 ---
 >>>            })(SubSubModule1 = SubModule1.SubSubModule1 || (SubModule1.SubSubModule1 = {}));
 1->^^^^^^^^^^^^
@@ -1690,15 +1706,15 @@ sourceFile:typeResolution.ts
   >                                                                                                    }
   >                                                                                                }
   >                                                                                            }
-1->Emitted(89, 13) Source(59, 9) + SourceIndex(0)
-2 >Emitted(89, 14) Source(59, 10) + SourceIndex(0)
-3 >Emitted(89, 16) Source(3, 23) + SourceIndex(0)
-4 >Emitted(89, 29) Source(3, 36) + SourceIndex(0)
-5 >Emitted(89, 32) Source(3, 23) + SourceIndex(0)
-6 >Emitted(89, 56) Source(3, 36) + SourceIndex(0)
-7 >Emitted(89, 61) Source(3, 23) + SourceIndex(0)
-8 >Emitted(89, 85) Source(3, 36) + SourceIndex(0)
-9 >Emitted(89, 93) Source(59, 10) + SourceIndex(0)
+1->Emitted(105, 13) Source(59, 9) + SourceIndex(0)
+2 >Emitted(105, 14) Source(59, 10) + SourceIndex(0)
+3 >Emitted(105, 16) Source(3, 23) + SourceIndex(0)
+4 >Emitted(105, 29) Source(3, 36) + SourceIndex(0)
+5 >Emitted(105, 32) Source(3, 23) + SourceIndex(0)
+6 >Emitted(105, 56) Source(3, 36) + SourceIndex(0)
+7 >Emitted(105, 61) Source(3, 23) + SourceIndex(0)
+8 >Emitted(105, 85) Source(3, 36) + SourceIndex(0)
+9 >Emitted(105, 93) Source(59, 10) + SourceIndex(0)
 ---
 >>>            // Should have no effect on S1.SS1.ClassA above because it is not exported
 1 >^^^^^^^^^^^^
@@ -1707,29 +1723,29 @@ sourceFile:typeResolution.ts
   >        
   >        
 2 >            // Should have no effect on S1.SS1.ClassA above because it is not exported
-1 >Emitted(90, 13) Source(61, 9) + SourceIndex(0)
-2 >Emitted(90, 87) Source(61, 83) + SourceIndex(0)
+1 >Emitted(106, 13) Source(61, 9) + SourceIndex(0)
+2 >Emitted(106, 87) Source(61, 83) + SourceIndex(0)
 ---
 >>>            var ClassA = (function () {
 1 >^^^^^^^^^^^^
 2 >            ^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >        
-1 >Emitted(91, 13) Source(62, 9) + SourceIndex(0)
+1 >Emitted(107, 13) Source(62, 9) + SourceIndex(0)
 ---
 >>>                function ClassA() {
 1->^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^^^^^^^^->
 1->class ClassA {
   >            
-1->Emitted(92, 17) Source(63, 13) + SourceIndex(0)
+1->Emitted(108, 17) Source(63, 13) + SourceIndex(0)
 ---
 >>>                    function AA() {
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^^->
 1->constructor() {
   >                
-1->Emitted(93, 21) Source(64, 17) + SourceIndex(0)
+1->Emitted(109, 21) Source(64, 17) + SourceIndex(0)
 ---
 >>>                        var a2;
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1742,10 +1758,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            a2: SubSubModule1.ClassA
 4 >                              ;
-1->Emitted(94, 25) Source(65, 21) + SourceIndex(0)
-2 >Emitted(94, 29) Source(65, 25) + SourceIndex(0)
-3 >Emitted(94, 31) Source(65, 49) + SourceIndex(0)
-4 >Emitted(94, 32) Source(65, 50) + SourceIndex(0)
+1->Emitted(110, 25) Source(65, 21) + SourceIndex(0)
+2 >Emitted(110, 29) Source(65, 25) + SourceIndex(0)
+3 >Emitted(110, 31) Source(65, 49) + SourceIndex(0)
+4 >Emitted(110, 32) Source(65, 50) + SourceIndex(0)
 ---
 >>>                        a2.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1760,12 +1776,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(95, 25) Source(65, 51) + SourceIndex(0)
-2 >Emitted(95, 27) Source(65, 53) + SourceIndex(0)
-3 >Emitted(95, 28) Source(65, 54) + SourceIndex(0)
-4 >Emitted(95, 38) Source(65, 64) + SourceIndex(0)
-5 >Emitted(95, 40) Source(65, 66) + SourceIndex(0)
-6 >Emitted(95, 41) Source(65, 67) + SourceIndex(0)
+1->Emitted(111, 25) Source(65, 51) + SourceIndex(0)
+2 >Emitted(111, 27) Source(65, 53) + SourceIndex(0)
+3 >Emitted(111, 28) Source(65, 54) + SourceIndex(0)
+4 >Emitted(111, 38) Source(65, 64) + SourceIndex(0)
+5 >Emitted(111, 40) Source(65, 66) + SourceIndex(0)
+6 >Emitted(111, 41) Source(65, 67) + SourceIndex(0)
 ---
 >>>                        var a3;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1778,10 +1794,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            a3: SubModule1.SubSubModule1.ClassA
 4 >                              ;
-1 >Emitted(96, 25) Source(66, 21) + SourceIndex(0)
-2 >Emitted(96, 29) Source(66, 25) + SourceIndex(0)
-3 >Emitted(96, 31) Source(66, 60) + SourceIndex(0)
-4 >Emitted(96, 32) Source(66, 61) + SourceIndex(0)
+1 >Emitted(112, 25) Source(66, 21) + SourceIndex(0)
+2 >Emitted(112, 29) Source(66, 25) + SourceIndex(0)
+3 >Emitted(112, 31) Source(66, 60) + SourceIndex(0)
+4 >Emitted(112, 32) Source(66, 61) + SourceIndex(0)
 ---
 >>>                        a3.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1796,12 +1812,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(97, 25) Source(66, 62) + SourceIndex(0)
-2 >Emitted(97, 27) Source(66, 64) + SourceIndex(0)
-3 >Emitted(97, 28) Source(66, 65) + SourceIndex(0)
-4 >Emitted(97, 38) Source(66, 75) + SourceIndex(0)
-5 >Emitted(97, 40) Source(66, 77) + SourceIndex(0)
-6 >Emitted(97, 41) Source(66, 78) + SourceIndex(0)
+1->Emitted(113, 25) Source(66, 62) + SourceIndex(0)
+2 >Emitted(113, 27) Source(66, 64) + SourceIndex(0)
+3 >Emitted(113, 28) Source(66, 65) + SourceIndex(0)
+4 >Emitted(113, 38) Source(66, 75) + SourceIndex(0)
+5 >Emitted(113, 40) Source(66, 77) + SourceIndex(0)
+6 >Emitted(113, 41) Source(66, 78) + SourceIndex(0)
 ---
 >>>                        var a4;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1814,10 +1830,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            a4: TopLevelModule1.SubModule1.SubSubModule1.ClassA
 4 >                              ;
-1 >Emitted(98, 25) Source(67, 21) + SourceIndex(0)
-2 >Emitted(98, 29) Source(67, 25) + SourceIndex(0)
-3 >Emitted(98, 31) Source(67, 76) + SourceIndex(0)
-4 >Emitted(98, 32) Source(67, 77) + SourceIndex(0)
+1 >Emitted(114, 25) Source(67, 21) + SourceIndex(0)
+2 >Emitted(114, 29) Source(67, 25) + SourceIndex(0)
+3 >Emitted(114, 31) Source(67, 76) + SourceIndex(0)
+4 >Emitted(114, 32) Source(67, 77) + SourceIndex(0)
 ---
 >>>                        a4.AisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1833,12 +1849,12 @@ sourceFile:typeResolution.ts
 4 >                           AisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(99, 25) Source(67, 78) + SourceIndex(0)
-2 >Emitted(99, 27) Source(67, 80) + SourceIndex(0)
-3 >Emitted(99, 28) Source(67, 81) + SourceIndex(0)
-4 >Emitted(99, 38) Source(67, 91) + SourceIndex(0)
-5 >Emitted(99, 40) Source(67, 93) + SourceIndex(0)
-6 >Emitted(99, 41) Source(67, 94) + SourceIndex(0)
+1->Emitted(115, 25) Source(67, 78) + SourceIndex(0)
+2 >Emitted(115, 27) Source(67, 80) + SourceIndex(0)
+3 >Emitted(115, 28) Source(67, 81) + SourceIndex(0)
+4 >Emitted(115, 38) Source(67, 91) + SourceIndex(0)
+5 >Emitted(115, 40) Source(67, 93) + SourceIndex(0)
+6 >Emitted(115, 41) Source(67, 94) + SourceIndex(0)
 ---
 >>>                        // Interface reference
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1847,8 +1863,8 @@ sourceFile:typeResolution.ts
   >                    
   >                    
 2 >                        // Interface reference
-1->Emitted(100, 25) Source(69, 21) + SourceIndex(0)
-2 >Emitted(100, 47) Source(69, 43) + SourceIndex(0)
+1->Emitted(116, 25) Source(69, 21) + SourceIndex(0)
+2 >Emitted(116, 47) Source(69, 43) + SourceIndex(0)
 ---
 >>>                        var d2;
 1 >^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1861,10 +1877,10 @@ sourceFile:typeResolution.ts
 2 >                        var 
 3 >                            d2: SubSubModule1.InterfaceX
 4 >                              ;
-1 >Emitted(101, 25) Source(70, 21) + SourceIndex(0)
-2 >Emitted(101, 29) Source(70, 25) + SourceIndex(0)
-3 >Emitted(101, 31) Source(70, 53) + SourceIndex(0)
-4 >Emitted(101, 32) Source(70, 54) + SourceIndex(0)
+1 >Emitted(117, 25) Source(70, 21) + SourceIndex(0)
+2 >Emitted(117, 29) Source(70, 25) + SourceIndex(0)
+3 >Emitted(117, 31) Source(70, 53) + SourceIndex(0)
+4 >Emitted(117, 32) Source(70, 54) + SourceIndex(0)
 ---
 >>>                        d2.XisIn1_1_1();
 1->^^^^^^^^^^^^^^^^^^^^^^^^
@@ -1879,12 +1895,12 @@ sourceFile:typeResolution.ts
 4 >                           XisIn1_1_1
 5 >                                     ()
 6 >                                       ;
-1->Emitted(102, 25) Source(70, 55) + SourceIndex(0)
-2 >Emitted(102, 27) Source(70, 57) + SourceIndex(0)
-3 >Emitted(102, 28) Source(70, 58) + SourceIndex(0)
-4 >Emitted(102, 38) Source(70, 68) + SourceIndex(0)
-5 >Emitted(102, 40) Source(70, 70) + SourceIndex(0)
-6 >Emitted(102, 41) Source(70, 71) + SourceIndex(0)
+1->Emitted(118, 25) Source(70, 55) + SourceIndex(0)
+2 >Emitted(118, 27) Source(70, 57) + SourceIndex(0)
+3 >Emitted(118, 28) Source(70, 58) + SourceIndex(0)
+4 >Emitted(118, 38) Source(70, 68) + SourceIndex(0)
+5 >Emitted(118, 40) Source(70, 70) + SourceIndex(0)
+6 >Emitted(118, 41) Source(70, 71) + SourceIndex(0)
 ---
 >>>                    }
 1 >^^^^^^^^^^^^^^^^^^^^
@@ -1892,8 +1908,8 @@ sourceFile:typeResolution.ts
 1 >
   >                
 2 >                    }
-1 >Emitted(103, 21) Source(71, 17) + SourceIndex(0)
-2 >Emitted(103, 22) Source(71, 18) + SourceIndex(0)
+1 >Emitted(119, 21) Source(71, 17) + SourceIndex(0)
+2 >Emitted(119, 22) Source(71, 18) + SourceIndex(0)
 ---
 >>>                }
 1 >^^^^^^^^^^^^^^^^
@@ -1902,8 +1918,8 @@ sourceFile:typeResolution.ts
 1 >
   >            
 2 >                }
-1 >Emitted(104, 17) Source(72, 13) + SourceIndex(0)
-2 >Emitted(104, 18) Source(72, 14) + SourceIndex(0)
+1 >Emitted(120, 17) Source(72, 13) + SourceIndex(0)
+2 >Emitted(120, 18) Source(72, 14) + SourceIndex(0)
 ---
 >>>                return ClassA;
 1->^^^^^^^^^^^^^^^^
@@ -1911,8 +1927,8 @@ sourceFile:typeResolution.ts
 1->
   >        
 2 >                }
-1->Emitted(105, 17) Source(73, 9) + SourceIndex(0)
-2 >Emitted(105, 30) Source(73, 10) + SourceIndex(0)
+1->Emitted(121, 17) Source(73, 9) + SourceIndex(0)
+2 >Emitted(121, 30) Source(73, 10) + SourceIndex(0)
 ---
 >>>            }());
 1 >^^^^^^^^^^^^
@@ -1935,10 +1951,10 @@ sourceFile:typeResolution.ts
   >                             }
   >                         }
   >                     }
-1 >Emitted(106, 13) Source(73, 9) + SourceIndex(0)
-2 >Emitted(106, 14) Source(73, 10) + SourceIndex(0)
-3 >Emitted(106, 14) Source(62, 9) + SourceIndex(0)
-4 >Emitted(106, 18) Source(73, 10) + SourceIndex(0)
+1 >Emitted(122, 13) Source(73, 9) + SourceIndex(0)
+2 >Emitted(122, 14) Source(73, 10) + SourceIndex(0)
+3 >Emitted(122, 14) Source(62, 9) + SourceIndex(0)
+4 >Emitted(122, 18) Source(73, 10) + SourceIndex(0)
 ---
 >>>        })(SubModule1 = TopLevelModule1.SubModule1 || (TopLevelModule1.SubModule1 = {}));
 1->^^^^^^^^
@@ -2032,15 +2048,15 @@ sourceFile:typeResolution.ts
   >                                                                                             }
   >                                                                                         }
   >                                                                                     }
-1->Emitted(107, 9) Source(74, 5) + SourceIndex(0)
-2 >Emitted(107, 10) Source(74, 6) + SourceIndex(0)
-3 >Emitted(107, 12) Source(2, 19) + SourceIndex(0)
-4 >Emitted(107, 22) Source(2, 29) + SourceIndex(0)
-5 >Emitted(107, 25) Source(2, 19) + SourceIndex(0)
-6 >Emitted(107, 51) Source(2, 29) + SourceIndex(0)
-7 >Emitted(107, 56) Source(2, 19) + SourceIndex(0)
-8 >Emitted(107, 82) Source(2, 29) + SourceIndex(0)
-9 >Emitted(107, 90) Source(74, 6) + SourceIndex(0)
+1->Emitted(123, 9) Source(74, 5) + SourceIndex(0)
+2 >Emitted(123, 10) Source(74, 6) + SourceIndex(0)
+3 >Emitted(123, 12) Source(2, 19) + SourceIndex(0)
+4 >Emitted(123, 22) Source(2, 29) + SourceIndex(0)
+5 >Emitted(123, 25) Source(2, 19) + SourceIndex(0)
+6 >Emitted(123, 51) Source(2, 29) + SourceIndex(0)
+7 >Emitted(123, 56) Source(2, 19) + SourceIndex(0)
+8 >Emitted(123, 82) Source(2, 29) + SourceIndex(0)
+9 >Emitted(123, 90) Source(74, 6) + SourceIndex(0)
 ---
 >>>        var SubModule2;
 1 >^^^^^^^^
@@ -2065,10 +2081,10 @@ sourceFile:typeResolution.ts
   >                              
   >                              export interface InterfaceY { YisIn1_2(); }
   >                          }
-1 >Emitted(108, 9) Source(76, 5) + SourceIndex(0)
-2 >Emitted(108, 13) Source(76, 19) + SourceIndex(0)
-3 >Emitted(108, 23) Source(76, 29) + SourceIndex(0)
-4 >Emitted(108, 24) Source(87, 6) + SourceIndex(0)
+1 >Emitted(124, 9) Source(76, 5) + SourceIndex(0)
+2 >Emitted(124, 13) Source(76, 19) + SourceIndex(0)
+3 >Emitted(124, 23) Source(76, 29) + SourceIndex(0)
+4 >Emitted(124, 24) Source(87, 6) + SourceIndex(0)
 ---
 >>>        (function (SubModule2) {
 1->^^^^^^^^
@@ -2078,9 +2094,9 @@ sourceFile:typeResolution.ts
 1->
 2 >        export module 
 3 >                   SubModule2
-1->Emitted(109, 9) Source(76, 5) + SourceIndex(0)
-2 >Emitted(109, 20) Source(76, 19) + SourceIndex(0)
-3 >Emitted(109, 30) Source(76, 29) + SourceIndex(0)
+1->Emitted(125, 9) Source(76, 5) + SourceIndex(0)
+2 >Emitted(125, 20) Source(76, 19) + SourceIndex(0)
+3 >Emitted(125, 30) Source(76, 29) + SourceIndex(0)
 ---
 >>>            var SubSubModule2;
 1->^^^^^^^^^^^^
@@ -2100,10 +2116,10 @@ sourceFile:typeResolution.ts
   >                                         export interface InterfaceY { YisIn1_2_2(); }
   >                                         interface NonExportedInterfaceQ { }
   >                                     }
-1->Emitted(110, 13) Source(77, 9) + SourceIndex(0)
-2 >Emitted(110, 17) Source(77, 23) + SourceIndex(0)
-3 >Emitted(110, 30) Source(77, 36) + SourceIndex(0)
-4 >Emitted(110, 31) Source(84, 10) + SourceIndex(0)
+1->Emitted(126, 13) Source(77, 9) + SourceIndex(0)
+2 >Emitted(126, 17) Source(77, 23) + SourceIndex(0)
+3 >Emitted(126, 30) Source(77, 36) + SourceIndex(0)
+4 >Emitted(126, 31) Source(84, 10) + SourceIndex(0)
 ---
 >>>            (function (SubSubModule2) {
 1->^^^^^^^^^^^^
@@ -2113,9 +2129,9 @@ sourceFile:typeResolution.ts
 1->
 2 >            export module 
 3 >                       SubSubModule2
-1->Emitted(111, 13) Source(77, 9) + SourceIndex(0)
-2 >Emitted(111, 24) Source(77, 23) + SourceIndex(0)
-3 >Emitted(111, 37) Source(77, 36) + SourceIndex(0)
+1->Emitted(127, 13) Source(77, 9) + SourceIndex(0)
+2 >Emitted(127, 24) Source(77, 23) + SourceIndex(0)
+3 >Emitted(127, 37) Source(77, 36) + SourceIndex(0)
 ---
 >>>                // No code here since these are the mirror of the above calls
 1->^^^^^^^^^^^^^^^^
@@ -2123,21 +2139,21 @@ sourceFile:typeResolution.ts
 1-> {
   >            
 2 >                // No code here since these are the mirror of the above calls
-1->Emitted(112, 17) Source(78, 13) + SourceIndex(0)
-2 >Emitted(112, 78) Source(78, 74) + SourceIndex(0)
+1->Emitted(128, 17) Source(78, 13) + SourceIndex(0)
+2 >Emitted(128, 78) Source(78, 74) + SourceIndex(0)
 ---
 >>>                var ClassA = (function () {
 1 >^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >            
-1 >Emitted(113, 17) Source(79, 13) + SourceIndex(0)
+1 >Emitted(129, 17) Source(79, 13) + SourceIndex(0)
 ---
 >>>                    function ClassA() {
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^->
 1->
-1->Emitted(114, 21) Source(79, 13) + SourceIndex(0)
+1->Emitted(130, 21) Source(79, 13) + SourceIndex(0)
 ---
 >>>                    }
 1->^^^^^^^^^^^^^^^^^^^^
@@ -2145,8 +2161,8 @@ sourceFile:typeResolution.ts
 3 >                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->export class ClassA { public AisIn1_2_2() { } 
 2 >                    }
-1->Emitted(115, 21) Source(79, 59) + SourceIndex(0)
-2 >Emitted(115, 22) Source(79, 60) + SourceIndex(0)
+1->Emitted(131, 21) Source(79, 59) + SourceIndex(0)
+2 >Emitted(131, 22) Source(79, 60) + SourceIndex(0)
 ---
 >>>                    ClassA.prototype.AisIn1_2_2 = function () { };
 1->^^^^^^^^^^^^^^^^^^^^
@@ -2159,19 +2175,20 @@ sourceFile:typeResolution.ts
 3 >                                               
 4 >                                                  public AisIn1_2_2() { 
 5 >                                                                }
-1->Emitted(116, 21) Source(79, 42) + SourceIndex(0)
-2 >Emitted(116, 48) Source(79, 52) + SourceIndex(0)
-3 >Emitted(116, 51) Source(79, 35) + SourceIndex(0)
-4 >Emitted(116, 65) Source(79, 57) + SourceIndex(0)
-5 >Emitted(116, 66) Source(79, 58) + SourceIndex(0)
+1->Emitted(132, 21) Source(79, 42) + SourceIndex(0)
+2 >Emitted(132, 48) Source(79, 52) + SourceIndex(0)
+3 >Emitted(132, 51) Source(79, 35) + SourceIndex(0)
+4 >Emitted(132, 65) Source(79, 57) + SourceIndex(0)
+5 >Emitted(132, 66) Source(79, 58) + SourceIndex(0)
 ---
+>>>                    __names(ClassA.prototype, ["AisIn1_2_2"]);
 >>>                    return ClassA;
 1 >^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^^^
 1 > 
 2 >                    }
-1 >Emitted(117, 21) Source(79, 59) + SourceIndex(0)
-2 >Emitted(117, 34) Source(79, 60) + SourceIndex(0)
+1 >Emitted(134, 21) Source(79, 59) + SourceIndex(0)
+2 >Emitted(134, 34) Source(79, 60) + SourceIndex(0)
 ---
 >>>                }());
 1 >^^^^^^^^^^^^^^^^
@@ -2183,10 +2200,10 @@ sourceFile:typeResolution.ts
 2 >                }
 3 >                 
 4 >                 export class ClassA { public AisIn1_2_2() { } }
-1 >Emitted(118, 17) Source(79, 59) + SourceIndex(0)
-2 >Emitted(118, 18) Source(79, 60) + SourceIndex(0)
-3 >Emitted(118, 18) Source(79, 13) + SourceIndex(0)
-4 >Emitted(118, 22) Source(79, 60) + SourceIndex(0)
+1 >Emitted(135, 17) Source(79, 59) + SourceIndex(0)
+2 >Emitted(135, 18) Source(79, 60) + SourceIndex(0)
+3 >Emitted(135, 18) Source(79, 13) + SourceIndex(0)
+4 >Emitted(135, 22) Source(79, 60) + SourceIndex(0)
 ---
 >>>                SubSubModule2.ClassA = ClassA;
 1->^^^^^^^^^^^^^^^^
@@ -2197,23 +2214,23 @@ sourceFile:typeResolution.ts
 2 >                ClassA
 3 >                                     { public AisIn1_2_2() { } }
 4 >                                             
-1->Emitted(119, 17) Source(79, 26) + SourceIndex(0)
-2 >Emitted(119, 37) Source(79, 32) + SourceIndex(0)
-3 >Emitted(119, 46) Source(79, 60) + SourceIndex(0)
-4 >Emitted(119, 47) Source(79, 60) + SourceIndex(0)
+1->Emitted(136, 17) Source(79, 26) + SourceIndex(0)
+2 >Emitted(136, 37) Source(79, 32) + SourceIndex(0)
+3 >Emitted(136, 46) Source(79, 60) + SourceIndex(0)
+4 >Emitted(136, 47) Source(79, 60) + SourceIndex(0)
 ---
 >>>                var ClassB = (function () {
 1 >^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >            
-1 >Emitted(120, 17) Source(80, 13) + SourceIndex(0)
+1 >Emitted(137, 17) Source(80, 13) + SourceIndex(0)
 ---
 >>>                    function ClassB() {
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^->
 1->
-1->Emitted(121, 21) Source(80, 13) + SourceIndex(0)
+1->Emitted(138, 21) Source(80, 13) + SourceIndex(0)
 ---
 >>>                    }
 1->^^^^^^^^^^^^^^^^^^^^
@@ -2221,8 +2238,8 @@ sourceFile:typeResolution.ts
 3 >                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->export class ClassB { public BisIn1_2_2() { } 
 2 >                    }
-1->Emitted(122, 21) Source(80, 59) + SourceIndex(0)
-2 >Emitted(122, 22) Source(80, 60) + SourceIndex(0)
+1->Emitted(139, 21) Source(80, 59) + SourceIndex(0)
+2 >Emitted(139, 22) Source(80, 60) + SourceIndex(0)
 ---
 >>>                    ClassB.prototype.BisIn1_2_2 = function () { };
 1->^^^^^^^^^^^^^^^^^^^^
@@ -2235,19 +2252,20 @@ sourceFile:typeResolution.ts
 3 >                                               
 4 >                                                  public BisIn1_2_2() { 
 5 >                                                                }
-1->Emitted(123, 21) Source(80, 42) + SourceIndex(0)
-2 >Emitted(123, 48) Source(80, 52) + SourceIndex(0)
-3 >Emitted(123, 51) Source(80, 35) + SourceIndex(0)
-4 >Emitted(123, 65) Source(80, 57) + SourceIndex(0)
-5 >Emitted(123, 66) Source(80, 58) + SourceIndex(0)
+1->Emitted(140, 21) Source(80, 42) + SourceIndex(0)
+2 >Emitted(140, 48) Source(80, 52) + SourceIndex(0)
+3 >Emitted(140, 51) Source(80, 35) + SourceIndex(0)
+4 >Emitted(140, 65) Source(80, 57) + SourceIndex(0)
+5 >Emitted(140, 66) Source(80, 58) + SourceIndex(0)
 ---
+>>>                    __names(ClassB.prototype, ["BisIn1_2_2"]);
 >>>                    return ClassB;
 1 >^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^^^
 1 > 
 2 >                    }
-1 >Emitted(124, 21) Source(80, 59) + SourceIndex(0)
-2 >Emitted(124, 34) Source(80, 60) + SourceIndex(0)
+1 >Emitted(142, 21) Source(80, 59) + SourceIndex(0)
+2 >Emitted(142, 34) Source(80, 60) + SourceIndex(0)
 ---
 >>>                }());
 1 >^^^^^^^^^^^^^^^^
@@ -2259,10 +2277,10 @@ sourceFile:typeResolution.ts
 2 >                }
 3 >                 
 4 >                 export class ClassB { public BisIn1_2_2() { } }
-1 >Emitted(125, 17) Source(80, 59) + SourceIndex(0)
-2 >Emitted(125, 18) Source(80, 60) + SourceIndex(0)
-3 >Emitted(125, 18) Source(80, 13) + SourceIndex(0)
-4 >Emitted(125, 22) Source(80, 60) + SourceIndex(0)
+1 >Emitted(143, 17) Source(80, 59) + SourceIndex(0)
+2 >Emitted(143, 18) Source(80, 60) + SourceIndex(0)
+3 >Emitted(143, 18) Source(80, 13) + SourceIndex(0)
+4 >Emitted(143, 22) Source(80, 60) + SourceIndex(0)
 ---
 >>>                SubSubModule2.ClassB = ClassB;
 1->^^^^^^^^^^^^^^^^
@@ -2273,23 +2291,23 @@ sourceFile:typeResolution.ts
 2 >                ClassB
 3 >                                     { public BisIn1_2_2() { } }
 4 >                                             
-1->Emitted(126, 17) Source(80, 26) + SourceIndex(0)
-2 >Emitted(126, 37) Source(80, 32) + SourceIndex(0)
-3 >Emitted(126, 46) Source(80, 60) + SourceIndex(0)
-4 >Emitted(126, 47) Source(80, 60) + SourceIndex(0)
+1->Emitted(144, 17) Source(80, 26) + SourceIndex(0)
+2 >Emitted(144, 37) Source(80, 32) + SourceIndex(0)
+3 >Emitted(144, 46) Source(80, 60) + SourceIndex(0)
+4 >Emitted(144, 47) Source(80, 60) + SourceIndex(0)
 ---
 >>>                var ClassC = (function () {
 1 >^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^^^^^^^^^^^^->
 1 >
   >            
-1 >Emitted(127, 17) Source(81, 13) + SourceIndex(0)
+1 >Emitted(145, 17) Source(81, 13) + SourceIndex(0)
 ---
 >>>                    function ClassC() {
 1->^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^->
 1->
-1->Emitted(128, 21) Source(81, 13) + SourceIndex(0)
+1->Emitted(146, 21) Source(81, 13) + SourceIndex(0)
 ---
 >>>                    }
 1->^^^^^^^^^^^^^^^^^^^^
@@ -2297,8 +2315,8 @@ sourceFile:typeResolution.ts
 3 >                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^->
 1->export class ClassC { public CisIn1_2_2() { } 
 2 >                    }
-1->Emitted(129, 21) Source(81, 59) + SourceIndex(0)
-2 >Emitted(129, 22) Source(81, 60) + SourceIndex(0)
+1->Emitted(147, 21) Source(81, 59) + SourceIndex(0)
+2 >Emitted(147, 22) Source(81, 60) + SourceIndex(0)
 ---
 >>>                    ClassC.prototype.CisIn1_2_2 = function () { };
 1->^^^^^^^^^^^^^^^^^^^^
@@ -2311,19 +2329,20 @@ sourceFile:typeResolution.ts
 3 >                                               
 4 >                                                  public CisIn1_2_2() { 
 5 >                                                                }
-1->Emitted(130, 21) Source(81, 42) + SourceIndex(0)
-2 >Emitted(130, 48) Source(81, 52) + SourceIndex(0)
-3 >Emitted(130, 51) Source(81, 35) + SourceIndex(0)
-4 >Emitted(130, 65) Source(81, 57) + SourceIndex(0)
-5 >Emitted(130, 66) Source(81, 58) + SourceIndex(0)
+1->Emitted(148, 21) Source(81, 42) + SourceIndex(0)
+2 >Emitted(148, 48) Source(81, 52) + SourceIndex(0)
+3 >Emitted(148, 51) Source(81, 35) + SourceIndex(0)
+4 >Emitted(148, 65) Source(81, 57) + SourceIndex(0)
+5 >Emitted(148, 66) Source(81, 58) + SourceIndex(0)
 ---
+>>>                    __names(ClassC.prototype, ["CisIn1_2_2"]);
 >>>                    return ClassC;
 1 >^^^^^^^^^^^^^^^^^^^^
 2 >                    ^^^^^^^^^^^^^
 1 > 
 2 >                    }
-1 >Emitted(131, 21) Source(81, 59) + SourceIndex(0)
-2 >Emitted(131, 34) Source(81, 60) + SourceIndex(0)
+1 >Emitted(150, 21) Source(81, 59) + SourceIndex(0)
+2 >Emitted(150, 34) Source(81, 60) + SourceIndex(0)
 ---
 >>>                }());
 1 >^^^^^^^^^^^^^^^^
@@ -2335,10 +2354,10 @@ sourceFile:typeResolution.ts
 2 >                }
 3 >                 
 4 >                 export class ClassC { public CisIn1_2_2() { } }
-1 >Emitted(132, 17) Source(81, 59) + SourceIndex(0)
-2 >Emitted(132, 18) Source(81, 60) + SourceIndex(0)
-3 >Emitted(132, 18) Source(81, 13) + SourceIndex(0)
-4 >Emitted(132, 22) Source(81, 60) + SourceIndex(0)
+1 >Emitted(151, 17) Source(81, 59) + SourceIndex(0)
+2 >Emitted(151, 18) Source(81, 60) + SourceIndex(0)
+3 >Emitted(151, 18) Source(81, 13) + SourceIndex(0)
+4 >Emitted(151, 22) Source(81, 60) + SourceIndex(0)
 ---
 >>>                SubSubModule2.ClassC = ClassC;
 1->^^^^^^^^^^^^^^^^
@@ -2350,10 +2369,10 @@ sourceFile:typeResolution.ts
 2 >                ClassC
 3 >                                     { public CisIn1_2_2() { } }
 4 >                                             
-1->Emitted(133, 17) Source(81, 26) + SourceIndex(0)
-2 >Emitted(133, 37) Source(81, 32) + SourceIndex(0)
-3 >Emitted(133, 46) Source(81, 60) + SourceIndex(0)
-4 >Emitted(133, 47) Source(81, 60) + SourceIndex(0)
+1->Emitted(152, 17) Source(81, 26) + SourceIndex(0)
+2 >Emitted(152, 37) Source(81, 32) + SourceIndex(0)
+3 >Emitted(152, 46) Source(81, 60) + SourceIndex(0)
+4 >Emitted(152, 47) Source(81, 60) + SourceIndex(0)
 ---
 >>>            })(SubSubModule2 = SubModule2.SubSubModule2 || (SubModule2.SubSubModule2 = {}));
 1->^^^^^^^^^^^^
@@ -2384,15 +2403,15 @@ sourceFile:typeResolution.ts
   >                                                                                                export interface InterfaceY { YisIn1_2_2(); }
   >                                                                                                interface NonExportedInterfaceQ { }
   >                                                                                            }
-1->Emitted(134, 13) Source(84, 9) + SourceIndex(0)
-2 >Emitted(134, 14) Source(84, 10) + SourceIndex(0)
-3 >Emitted(134, 16) Source(77, 23) + SourceIndex(0)
-4 >Emitted(134, 29) Source(77, 36) + SourceIndex(0)
-5 >Emitted(134, 32) Source(77, 23) + SourceIndex(0)
-6 >Emitted(134, 56) Source(77, 36) + SourceIndex(0)
-7 >Emitted(134, 61) Source(77, 23) + SourceIndex(0)
-8 >Emitted(134, 85) Source(77, 36) + SourceIndex(0)
-9 >Emitted(134, 93) Source(84, 10) + SourceIndex(0)
+1->Emitted(153, 13) Source(84, 9) + SourceIndex(0)
+2 >Emitted(153, 14) Source(84, 10) + SourceIndex(0)
+3 >Emitted(153, 16) Source(77, 23) + SourceIndex(0)
+4 >Emitted(153, 29) Source(77, 36) + SourceIndex(0)
+5 >Emitted(153, 32) Source(77, 23) + SourceIndex(0)
+6 >Emitted(153, 56) Source(77, 36) + SourceIndex(0)
+7 >Emitted(153, 61) Source(77, 23) + SourceIndex(0)
+8 >Emitted(153, 85) Source(77, 36) + SourceIndex(0)
+9 >Emitted(153, 93) Source(84, 10) + SourceIndex(0)
 ---
 >>>        })(SubModule2 = TopLevelModule1.SubModule2 || (TopLevelModule1.SubModule2 = {}));
 1 >^^^^^^^^
@@ -2427,15 +2446,15 @@ sourceFile:typeResolution.ts
   >                                                                                         
   >                                                                                         export interface InterfaceY { YisIn1_2(); }
   >                                                                                     }
-1 >Emitted(135, 9) Source(87, 5) + SourceIndex(0)
-2 >Emitted(135, 10) Source(87, 6) + SourceIndex(0)
-3 >Emitted(135, 12) Source(76, 19) + SourceIndex(0)
-4 >Emitted(135, 22) Source(76, 29) + SourceIndex(0)
-5 >Emitted(135, 25) Source(76, 19) + SourceIndex(0)
-6 >Emitted(135, 51) Source(76, 29) + SourceIndex(0)
-7 >Emitted(135, 56) Source(76, 19) + SourceIndex(0)
-8 >Emitted(135, 82) Source(76, 29) + SourceIndex(0)
-9 >Emitted(135, 90) Source(87, 6) + SourceIndex(0)
+1 >Emitted(154, 9) Source(87, 5) + SourceIndex(0)
+2 >Emitted(154, 10) Source(87, 6) + SourceIndex(0)
+3 >Emitted(154, 12) Source(76, 19) + SourceIndex(0)
+4 >Emitted(154, 22) Source(76, 29) + SourceIndex(0)
+5 >Emitted(154, 25) Source(76, 19) + SourceIndex(0)
+6 >Emitted(154, 51) Source(76, 29) + SourceIndex(0)
+7 >Emitted(154, 56) Source(76, 19) + SourceIndex(0)
+8 >Emitted(154, 82) Source(76, 29) + SourceIndex(0)
+9 >Emitted(154, 90) Source(87, 6) + SourceIndex(0)
 ---
 >>>        var ClassA = (function () {
 1 >^^^^^^^^
@@ -2443,13 +2462,13 @@ sourceFile:typeResolution.ts
 1 >
   >    
   >    
-1 >Emitted(136, 9) Source(89, 5) + SourceIndex(0)
+1 >Emitted(155, 9) Source(89, 5) + SourceIndex(0)
 ---
 >>>            function ClassA() {
 1->^^^^^^^^^^^^
 2 >            ^^->
 1->
-1->Emitted(137, 13) Source(89, 5) + SourceIndex(0)
+1->Emitted(156, 13) Source(89, 5) + SourceIndex(0)
 ---
 >>>            }
 1->^^^^^^^^^^^^
@@ -2459,8 +2478,8 @@ sourceFile:typeResolution.ts
   >        public AisIn1() { }
   >    
 2 >            }
-1->Emitted(138, 13) Source(91, 5) + SourceIndex(0)
-2 >Emitted(138, 14) Source(91, 6) + SourceIndex(0)
+1->Emitted(157, 13) Source(91, 5) + SourceIndex(0)
+2 >Emitted(157, 14) Source(91, 6) + SourceIndex(0)
 ---
 >>>            ClassA.prototype.AisIn1 = function () { };
 1->^^^^^^^^^^^^
@@ -2473,20 +2492,21 @@ sourceFile:typeResolution.ts
 3 >                                   
 4 >                                      public AisIn1() { 
 5 >                                                    }
-1->Emitted(139, 13) Source(90, 16) + SourceIndex(0)
-2 >Emitted(139, 36) Source(90, 22) + SourceIndex(0)
-3 >Emitted(139, 39) Source(90, 9) + SourceIndex(0)
-4 >Emitted(139, 53) Source(90, 27) + SourceIndex(0)
-5 >Emitted(139, 54) Source(90, 28) + SourceIndex(0)
+1->Emitted(158, 13) Source(90, 16) + SourceIndex(0)
+2 >Emitted(158, 36) Source(90, 22) + SourceIndex(0)
+3 >Emitted(158, 39) Source(90, 9) + SourceIndex(0)
+4 >Emitted(158, 53) Source(90, 27) + SourceIndex(0)
+5 >Emitted(158, 54) Source(90, 28) + SourceIndex(0)
 ---
+>>>            __names(ClassA.prototype, ["AisIn1"]);
 >>>            return ClassA;
 1 >^^^^^^^^^^^^
 2 >            ^^^^^^^^^^^^^
 1 >
   >    
 2 >            }
-1 >Emitted(140, 13) Source(91, 5) + SourceIndex(0)
-2 >Emitted(140, 26) Source(91, 6) + SourceIndex(0)
+1 >Emitted(160, 13) Source(91, 5) + SourceIndex(0)
+2 >Emitted(160, 26) Source(91, 6) + SourceIndex(0)
 ---
 >>>        }());
 1 >^^^^^^^^
@@ -2500,10 +2520,10 @@ sourceFile:typeResolution.ts
 4 >         class ClassA {
   >                 public AisIn1() { }
   >             }
-1 >Emitted(141, 9) Source(91, 5) + SourceIndex(0)
-2 >Emitted(141, 10) Source(91, 6) + SourceIndex(0)
-3 >Emitted(141, 10) Source(89, 5) + SourceIndex(0)
-4 >Emitted(141, 14) Source(91, 6) + SourceIndex(0)
+1 >Emitted(161, 9) Source(91, 5) + SourceIndex(0)
+2 >Emitted(161, 10) Source(91, 6) + SourceIndex(0)
+3 >Emitted(161, 10) Source(89, 5) + SourceIndex(0)
+4 >Emitted(161, 14) Source(91, 6) + SourceIndex(0)
 ---
 >>>        var NotExportedModule;
 1->^^^^^^^^
@@ -2523,10 +2543,10 @@ sourceFile:typeResolution.ts
 4 >                              {
   >                                     export class ClassA { }
   >                                 }
-1->Emitted(142, 9) Source(97, 5) + SourceIndex(0)
-2 >Emitted(142, 13) Source(97, 12) + SourceIndex(0)
-3 >Emitted(142, 30) Source(97, 29) + SourceIndex(0)
-4 >Emitted(142, 31) Source(99, 6) + SourceIndex(0)
+1->Emitted(162, 9) Source(97, 5) + SourceIndex(0)
+2 >Emitted(162, 13) Source(97, 12) + SourceIndex(0)
+3 >Emitted(162, 30) Source(97, 29) + SourceIndex(0)
+4 >Emitted(162, 31) Source(99, 6) + SourceIndex(0)
 ---
 >>>        (function (NotExportedModule) {
 1->^^^^^^^^
@@ -2536,22 +2556,22 @@ sourceFile:typeResolution.ts
 1->
 2 >        module 
 3 >                   NotExportedModule
-1->Emitted(143, 9) Source(97, 5) + SourceIndex(0)
-2 >Emitted(143, 20) Source(97, 12) + SourceIndex(0)
-3 >Emitted(143, 37) Source(97, 29) + SourceIndex(0)
+1->Emitted(163, 9) Source(97, 5) + SourceIndex(0)
+2 >Emitted(163, 20) Source(97, 12) + SourceIndex(0)
+3 >Emitted(163, 37) Source(97, 29) + SourceIndex(0)
 ---
 >>>            var ClassA = (function () {
 1->^^^^^^^^^^^^
 2 >            ^^^^^^^^^^^^^^^^^^^^^^^^->
 1-> {
   >        
-1->Emitted(144, 13) Source(98, 9) + SourceIndex(0)
+1->Emitted(164, 13) Source(98, 9) + SourceIndex(0)
 ---
 >>>                function ClassA() {
 1->^^^^^^^^^^^^^^^^
 2 >                ^^->
 1->
-1->Emitted(145, 17) Source(98, 9) + SourceIndex(0)
+1->Emitted(165, 17) Source(98, 9) + SourceIndex(0)
 ---
 >>>                }
 1->^^^^^^^^^^^^^^^^
@@ -2559,16 +2579,16 @@ sourceFile:typeResolution.ts
 3 >                 ^^^^^^^^^^^^^^->
 1->export class ClassA { 
 2 >                }
-1->Emitted(146, 17) Source(98, 31) + SourceIndex(0)
-2 >Emitted(146, 18) Source(98, 32) + SourceIndex(0)
+1->Emitted(166, 17) Source(98, 31) + SourceIndex(0)
+2 >Emitted(166, 18) Source(98, 32) + SourceIndex(0)
 ---
 >>>                return ClassA;
 1->^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^
 1->
 2 >                }
-1->Emitted(147, 17) Source(98, 31) + SourceIndex(0)
-2 >Emitted(147, 30) Source(98, 32) + SourceIndex(0)
+1->Emitted(167, 17) Source(98, 31) + SourceIndex(0)
+2 >Emitted(167, 30) Source(98, 32) + SourceIndex(0)
 ---
 >>>            }());
 1 >^^^^^^^^^^^^
@@ -2580,10 +2600,10 @@ sourceFile:typeResolution.ts
 2 >            }
 3 >             
 4 >             export class ClassA { }
-1 >Emitted(148, 13) Source(98, 31) + SourceIndex(0)
-2 >Emitted(148, 14) Source(98, 32) + SourceIndex(0)
-3 >Emitted(148, 14) Source(98, 9) + SourceIndex(0)
-4 >Emitted(148, 18) Source(98, 32) + SourceIndex(0)
+1 >Emitted(168, 13) Source(98, 31) + SourceIndex(0)
+2 >Emitted(168, 14) Source(98, 32) + SourceIndex(0)
+3 >Emitted(168, 14) Source(98, 9) + SourceIndex(0)
+4 >Emitted(168, 18) Source(98, 32) + SourceIndex(0)
 ---
 >>>            NotExportedModule.ClassA = ClassA;
 1->^^^^^^^^^^^^
@@ -2595,10 +2615,10 @@ sourceFile:typeResolution.ts
 2 >            ClassA
 3 >                                     { }
 4 >                                             
-1->Emitted(149, 13) Source(98, 22) + SourceIndex(0)
-2 >Emitted(149, 37) Source(98, 28) + SourceIndex(0)
-3 >Emitted(149, 46) Source(98, 32) + SourceIndex(0)
-4 >Emitted(149, 47) Source(98, 32) + SourceIndex(0)
+1->Emitted(169, 13) Source(98, 22) + SourceIndex(0)
+2 >Emitted(169, 37) Source(98, 28) + SourceIndex(0)
+3 >Emitted(169, 46) Source(98, 32) + SourceIndex(0)
+4 >Emitted(169, 47) Source(98, 32) + SourceIndex(0)
 ---
 >>>        })(NotExportedModule || (NotExportedModule = {}));
 1->^^^^^^^^
@@ -2619,13 +2639,13 @@ sourceFile:typeResolution.ts
 7 >                                                   {
   >                                                          export class ClassA { }
   >                                                      }
-1->Emitted(150, 9) Source(99, 5) + SourceIndex(0)
-2 >Emitted(150, 10) Source(99, 6) + SourceIndex(0)
-3 >Emitted(150, 12) Source(97, 12) + SourceIndex(0)
-4 >Emitted(150, 29) Source(97, 29) + SourceIndex(0)
-5 >Emitted(150, 34) Source(97, 12) + SourceIndex(0)
-6 >Emitted(150, 51) Source(97, 29) + SourceIndex(0)
-7 >Emitted(150, 59) Source(99, 6) + SourceIndex(0)
+1->Emitted(170, 9) Source(99, 5) + SourceIndex(0)
+2 >Emitted(170, 10) Source(99, 6) + SourceIndex(0)
+3 >Emitted(170, 12) Source(97, 12) + SourceIndex(0)
+4 >Emitted(170, 29) Source(97, 29) + SourceIndex(0)
+5 >Emitted(170, 34) Source(97, 12) + SourceIndex(0)
+6 >Emitted(170, 51) Source(97, 29) + SourceIndex(0)
+7 >Emitted(170, 59) Source(99, 6) + SourceIndex(0)
 ---
 >>>    })(TopLevelModule1 = exports.TopLevelModule1 || (exports.TopLevelModule1 = {}));
 1->^^^^
@@ -2746,15 +2766,15 @@ sourceFile:typeResolution.ts
   >                                                                                    export class ClassA { }
   >                                                                                }
   >                                                                            }
-1->Emitted(151, 5) Source(100, 1) + SourceIndex(0)
-2 >Emitted(151, 6) Source(100, 2) + SourceIndex(0)
-3 >Emitted(151, 8) Source(1, 15) + SourceIndex(0)
-4 >Emitted(151, 23) Source(1, 30) + SourceIndex(0)
-5 >Emitted(151, 26) Source(1, 15) + SourceIndex(0)
-6 >Emitted(151, 49) Source(1, 30) + SourceIndex(0)
-7 >Emitted(151, 54) Source(1, 15) + SourceIndex(0)
-8 >Emitted(151, 77) Source(1, 30) + SourceIndex(0)
-9 >Emitted(151, 85) Source(100, 2) + SourceIndex(0)
+1->Emitted(171, 5) Source(100, 1) + SourceIndex(0)
+2 >Emitted(171, 6) Source(100, 2) + SourceIndex(0)
+3 >Emitted(171, 8) Source(1, 15) + SourceIndex(0)
+4 >Emitted(171, 23) Source(1, 30) + SourceIndex(0)
+5 >Emitted(171, 26) Source(1, 15) + SourceIndex(0)
+6 >Emitted(171, 49) Source(1, 30) + SourceIndex(0)
+7 >Emitted(171, 54) Source(1, 15) + SourceIndex(0)
+8 >Emitted(171, 77) Source(1, 30) + SourceIndex(0)
+9 >Emitted(171, 85) Source(100, 2) + SourceIndex(0)
 ---
 >>>    var TopLevelModule2;
 1 >^^^^
@@ -2774,10 +2794,10 @@ sourceFile:typeResolution.ts
   >                               }
   >                           }
   >                       }
-1 >Emitted(152, 5) Source(102, 1) + SourceIndex(0)
-2 >Emitted(152, 9) Source(102, 8) + SourceIndex(0)
-3 >Emitted(152, 24) Source(102, 23) + SourceIndex(0)
-4 >Emitted(152, 25) Source(108, 2) + SourceIndex(0)
+1 >Emitted(172, 5) Source(102, 1) + SourceIndex(0)
+2 >Emitted(172, 9) Source(102, 8) + SourceIndex(0)
+3 >Emitted(172, 24) Source(102, 23) + SourceIndex(0)
+4 >Emitted(172, 25) Source(108, 2) + SourceIndex(0)
 ---
 >>>    (function (TopLevelModule2) {
 1->^^^^
@@ -2786,9 +2806,9 @@ sourceFile:typeResolution.ts
 1->
 2 >    module 
 3 >               TopLevelModule2
-1->Emitted(153, 5) Source(102, 1) + SourceIndex(0)
-2 >Emitted(153, 16) Source(102, 8) + SourceIndex(0)
-3 >Emitted(153, 31) Source(102, 23) + SourceIndex(0)
+1->Emitted(173, 5) Source(102, 1) + SourceIndex(0)
+2 >Emitted(173, 16) Source(102, 8) + SourceIndex(0)
+3 >Emitted(173, 31) Source(102, 23) + SourceIndex(0)
 ---
 >>>        var SubModule3;
 1 >^^^^^^^^
@@ -2805,10 +2825,10 @@ sourceFile:typeResolution.ts
   >                                  public AisIn2_3() { }
   >                              }
   >                          }
-1 >Emitted(154, 9) Source(103, 5) + SourceIndex(0)
-2 >Emitted(154, 13) Source(103, 19) + SourceIndex(0)
-3 >Emitted(154, 23) Source(103, 29) + SourceIndex(0)
-4 >Emitted(154, 24) Source(107, 6) + SourceIndex(0)
+1 >Emitted(174, 9) Source(103, 5) + SourceIndex(0)
+2 >Emitted(174, 13) Source(103, 19) + SourceIndex(0)
+3 >Emitted(174, 23) Source(103, 29) + SourceIndex(0)
+4 >Emitted(174, 24) Source(107, 6) + SourceIndex(0)
 ---
 >>>        (function (SubModule3) {
 1->^^^^^^^^
@@ -2818,22 +2838,22 @@ sourceFile:typeResolution.ts
 1->
 2 >        export module 
 3 >                   SubModule3
-1->Emitted(155, 9) Source(103, 5) + SourceIndex(0)
-2 >Emitted(155, 20) Source(103, 19) + SourceIndex(0)
-3 >Emitted(155, 30) Source(103, 29) + SourceIndex(0)
+1->Emitted(175, 9) Source(103, 5) + SourceIndex(0)
+2 >Emitted(175, 20) Source(103, 19) + SourceIndex(0)
+3 >Emitted(175, 30) Source(103, 29) + SourceIndex(0)
 ---
 >>>            var ClassA = (function () {
 1->^^^^^^^^^^^^
 2 >            ^^^^^^^^^^^^^^^^^^^^^^^^->
 1-> {
   >        
-1->Emitted(156, 13) Source(104, 9) + SourceIndex(0)
+1->Emitted(176, 13) Source(104, 9) + SourceIndex(0)
 ---
 >>>                function ClassA() {
 1->^^^^^^^^^^^^^^^^
 2 >                ^^->
 1->
-1->Emitted(157, 17) Source(104, 9) + SourceIndex(0)
+1->Emitted(177, 17) Source(104, 9) + SourceIndex(0)
 ---
 >>>                }
 1->^^^^^^^^^^^^^^^^
@@ -2843,8 +2863,8 @@ sourceFile:typeResolution.ts
   >            public AisIn2_3() { }
   >        
 2 >                }
-1->Emitted(158, 17) Source(106, 9) + SourceIndex(0)
-2 >Emitted(158, 18) Source(106, 10) + SourceIndex(0)
+1->Emitted(178, 17) Source(106, 9) + SourceIndex(0)
+2 >Emitted(178, 18) Source(106, 10) + SourceIndex(0)
 ---
 >>>                ClassA.prototype.AisIn2_3 = function () { };
 1->^^^^^^^^^^^^^^^^
@@ -2857,20 +2877,21 @@ sourceFile:typeResolution.ts
 3 >                                         
 4 >                                            public AisIn2_3() { 
 5 >                                                          }
-1->Emitted(159, 17) Source(105, 20) + SourceIndex(0)
-2 >Emitted(159, 42) Source(105, 28) + SourceIndex(0)
-3 >Emitted(159, 45) Source(105, 13) + SourceIndex(0)
-4 >Emitted(159, 59) Source(105, 33) + SourceIndex(0)
-5 >Emitted(159, 60) Source(105, 34) + SourceIndex(0)
+1->Emitted(179, 17) Source(105, 20) + SourceIndex(0)
+2 >Emitted(179, 42) Source(105, 28) + SourceIndex(0)
+3 >Emitted(179, 45) Source(105, 13) + SourceIndex(0)
+4 >Emitted(179, 59) Source(105, 33) + SourceIndex(0)
+5 >Emitted(179, 60) Source(105, 34) + SourceIndex(0)
 ---
+>>>                __names(ClassA.prototype, ["AisIn2_3"]);
 >>>                return ClassA;
 1 >^^^^^^^^^^^^^^^^
 2 >                ^^^^^^^^^^^^^
 1 >
   >        
 2 >                }
-1 >Emitted(160, 17) Source(106, 9) + SourceIndex(0)
-2 >Emitted(160, 30) Source(106, 10) + SourceIndex(0)
+1 >Emitted(181, 17) Source(106, 9) + SourceIndex(0)
+2 >Emitted(181, 30) Source(106, 10) + SourceIndex(0)
 ---
 >>>            }());
 1 >^^^^^^^^^^^^
@@ -2884,10 +2905,10 @@ sourceFile:typeResolution.ts
 4 >             export class ClassA {
   >                         public AisIn2_3() { }
   >                     }
-1 >Emitted(161, 13) Source(106, 9) + SourceIndex(0)
-2 >Emitted(161, 14) Source(106, 10) + SourceIndex(0)
-3 >Emitted(161, 14) Source(104, 9) + SourceIndex(0)
-4 >Emitted(161, 18) Source(106, 10) + SourceIndex(0)
+1 >Emitted(182, 13) Source(106, 9) + SourceIndex(0)
+2 >Emitted(182, 14) Source(106, 10) + SourceIndex(0)
+3 >Emitted(182, 14) Source(104, 9) + SourceIndex(0)
+4 >Emitted(182, 18) Source(106, 10) + SourceIndex(0)
 ---
 >>>            SubModule3.ClassA = ClassA;
 1->^^^^^^^^^^^^
@@ -2901,10 +2922,10 @@ sourceFile:typeResolution.ts
   >                                         public AisIn2_3() { }
   >                                     }
 4 >                                      
-1->Emitted(162, 13) Source(104, 22) + SourceIndex(0)
-2 >Emitted(162, 30) Source(104, 28) + SourceIndex(0)
-3 >Emitted(162, 39) Source(106, 10) + SourceIndex(0)
-4 >Emitted(162, 40) Source(106, 10) + SourceIndex(0)
+1->Emitted(183, 13) Source(104, 22) + SourceIndex(0)
+2 >Emitted(183, 30) Source(104, 28) + SourceIndex(0)
+3 >Emitted(183, 39) Source(106, 10) + SourceIndex(0)
+4 >Emitted(183, 40) Source(106, 10) + SourceIndex(0)
 ---
 >>>        })(SubModule3 = TopLevelModule2.SubModule3 || (TopLevelModule2.SubModule3 = {}));
 1->^^^^^^^^
@@ -2930,15 +2951,15 @@ sourceFile:typeResolution.ts
   >                                                                                             public AisIn2_3() { }
   >                                                                                         }
   >                                                                                     }
-1->Emitted(163, 9) Source(107, 5) + SourceIndex(0)
-2 >Emitted(163, 10) Source(107, 6) + SourceIndex(0)
-3 >Emitted(163, 12) Source(103, 19) + SourceIndex(0)
-4 >Emitted(163, 22) Source(103, 29) + SourceIndex(0)
-5 >Emitted(163, 25) Source(103, 19) + SourceIndex(0)
-6 >Emitted(163, 51) Source(103, 29) + SourceIndex(0)
-7 >Emitted(163, 56) Source(103, 19) + SourceIndex(0)
-8 >Emitted(163, 82) Source(103, 29) + SourceIndex(0)
-9 >Emitted(163, 90) Source(107, 6) + SourceIndex(0)
+1->Emitted(184, 9) Source(107, 5) + SourceIndex(0)
+2 >Emitted(184, 10) Source(107, 6) + SourceIndex(0)
+3 >Emitted(184, 12) Source(103, 19) + SourceIndex(0)
+4 >Emitted(184, 22) Source(103, 29) + SourceIndex(0)
+5 >Emitted(184, 25) Source(103, 19) + SourceIndex(0)
+6 >Emitted(184, 51) Source(103, 29) + SourceIndex(0)
+7 >Emitted(184, 56) Source(103, 19) + SourceIndex(0)
+8 >Emitted(184, 82) Source(103, 29) + SourceIndex(0)
+9 >Emitted(184, 90) Source(107, 6) + SourceIndex(0)
 ---
 >>>    })(TopLevelModule2 || (TopLevelModule2 = {}));
 1 >^^^^
@@ -2962,13 +2983,13 @@ sourceFile:typeResolution.ts
   >                                                  }
   >                                              }
   >                                          }
-1 >Emitted(164, 5) Source(108, 1) + SourceIndex(0)
-2 >Emitted(164, 6) Source(108, 2) + SourceIndex(0)
-3 >Emitted(164, 8) Source(102, 8) + SourceIndex(0)
-4 >Emitted(164, 23) Source(102, 23) + SourceIndex(0)
-5 >Emitted(164, 28) Source(102, 8) + SourceIndex(0)
-6 >Emitted(164, 43) Source(102, 23) + SourceIndex(0)
-7 >Emitted(164, 51) Source(108, 2) + SourceIndex(0)
+1 >Emitted(185, 5) Source(108, 1) + SourceIndex(0)
+2 >Emitted(185, 6) Source(108, 2) + SourceIndex(0)
+3 >Emitted(185, 8) Source(102, 8) + SourceIndex(0)
+4 >Emitted(185, 23) Source(102, 23) + SourceIndex(0)
+5 >Emitted(185, 28) Source(102, 8) + SourceIndex(0)
+6 >Emitted(185, 43) Source(102, 23) + SourceIndex(0)
+7 >Emitted(185, 51) Source(108, 2) + SourceIndex(0)
 ---
 >>>});
 >>>//# sourceMappingURL=typeResolution.js.map
\ No newline at end of file
diff --git a/tests/baselines/reference/typeVariableTypeGuards.js b/tests/baselines/reference/typeVariableTypeGuards.js
index 8525bde0f779c..7f54c0a0695c7 100644
--- a/tests/baselines/reference/typeVariableTypeGuards.js
+++ b/tests/baselines/reference/typeVariableTypeGuards.js
@@ -85,6 +85,20 @@ function f5<T, K extends keyof T>(obj: T | undefined, key: K) {
 //// [typeVariableTypeGuards.js]
 "use strict";
 // Repro from #14091
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -101,6 +115,7 @@ var A = (function () {
     A.prototype.doSomething = function () {
         this.props.foo && this.props.foo();
     };
+    __names(A.prototype, ["doSomething"]);
     return A;
 }());
 var Monkey = (function () {
@@ -111,6 +126,7 @@ var Monkey = (function () {
             this.a.color;
         }
     };
+    __names(Monkey.prototype, ["render"]);
     return Monkey;
 }());
 var BigMonkey = (function (_super) {
@@ -123,6 +139,7 @@ var BigMonkey = (function (_super) {
             this.a.color;
         }
     };
+    __names(BigMonkey.prototype, ["render"]);
     return BigMonkey;
 }(Monkey));
 function f1(obj) {
diff --git a/tests/baselines/reference/typedGenericPrototypeMember.js b/tests/baselines/reference/typedGenericPrototypeMember.js
index 16b4d93315fb2..2288b62519f87 100644
--- a/tests/baselines/reference/typedGenericPrototypeMember.js
+++ b/tests/baselines/reference/typedGenericPrototypeMember.js
@@ -7,10 +7,25 @@ List.prototype.add("abc"); // Valid because T is instantiated to any
 
 
 //// [typedGenericPrototypeMember.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var List = (function () {
     function List() {
     }
     List.prototype.add = function (item) { };
+    __names(List.prototype, ["add"]);
     return List;
 }());
 List.prototype.add("abc"); // Valid because T is instantiated to any
diff --git a/tests/baselines/reference/typeofClass2.js b/tests/baselines/reference/typeofClass2.js
index f5b11e0c8338f..9f88c7e0de4bb 100644
--- a/tests/baselines/reference/typeofClass2.js
+++ b/tests/baselines/reference/typeofClass2.js
@@ -32,6 +32,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(x) {
     }
@@ -46,6 +60,7 @@ var D = (function (_super) {
     }
     D.baz = function (x) { };
     D.prototype.foo = function () { };
+    __names(D.prototype, ["foo"]);
     return D;
 }(C));
 var d;
diff --git a/tests/baselines/reference/typesWithSpecializedCallSignatures.js b/tests/baselines/reference/typesWithSpecializedCallSignatures.js
index 7a006e1a8ce2f..cd9c19c947dae 100644
--- a/tests/baselines/reference/typesWithSpecializedCallSignatures.js
+++ b/tests/baselines/reference/typesWithSpecializedCallSignatures.js
@@ -53,6 +53,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Base = (function () {
     function Base() {
     }
@@ -78,6 +92,7 @@ var C = (function () {
     C.prototype.foo = function (x) {
         return x;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c = new C();
diff --git a/tests/baselines/reference/undeclaredMethod.js b/tests/baselines/reference/undeclaredMethod.js
index 071f45776aa57..56799db14160a 100644
--- a/tests/baselines/reference/undeclaredMethod.js
+++ b/tests/baselines/reference/undeclaredMethod.js
@@ -13,12 +13,27 @@ c.saltbar();	// crash
 
 
 //// [undeclaredMethod.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var C = (function () {
         function C() {
         }
         C.prototype.salt = function () { };
+        __names(C.prototype, ["salt"]);
         return C;
     }());
     M.C = C;
diff --git a/tests/baselines/reference/underscoreMapFirst.js b/tests/baselines/reference/underscoreMapFirst.js
index dcd95f85a12dc..ccacda241629d 100644
--- a/tests/baselines/reference/underscoreMapFirst.js
+++ b/tests/baselines/reference/underscoreMapFirst.js
@@ -59,6 +59,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var MyView = (function (_super) {
     __extends(MyView, _super);
     function MyView() {
@@ -69,5 +83,6 @@ var MyView = (function (_super) {
         var allSeries = _.pluck(data, "series");
         return _.map(allSeries, _.first);
     };
+    __names(MyView.prototype, ["getDataSeries"]);
     return MyView;
 }(View));
diff --git a/tests/baselines/reference/unionTypeEquivalence.js b/tests/baselines/reference/unionTypeEquivalence.js
index 11ef3a7974eaf..dffd6cf986ddc 100644
--- a/tests/baselines/reference/unionTypeEquivalence.js
+++ b/tests/baselines/reference/unionTypeEquivalence.js
@@ -30,6 +30,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // A | B is equivalent to A if B is a subtype of A
 var C = (function () {
     function C() {
@@ -42,6 +56,7 @@ var D = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     D.prototype.foo = function () { };
+    __names(D.prototype, ["foo"]);
     return D;
 }(C));
 var x;
diff --git a/tests/baselines/reference/unionTypeFromArrayLiteral.js b/tests/baselines/reference/unionTypeFromArrayLiteral.js
index 11f53a8b98562..7631c7e4357a8 100644
--- a/tests/baselines/reference/unionTypeFromArrayLiteral.js
+++ b/tests/baselines/reference/unionTypeFromArrayLiteral.js
@@ -28,6 +28,20 @@ var arr9 = [e, f]; // (E|F)[]
 // If the array literal is empty, the resulting type is an array type with the element type Undefined.
 // Otherwise, if the array literal is contextually typed by a type that has a property with the numeric name ‘0’, the resulting type is a tuple type constructed from the types of the element expressions.
 // Otherwise, the resulting type is an array type with an element type that is the union of the types of the element expressions.
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -48,12 +62,14 @@ var C = (function () {
     function C() {
     }
     C.prototype.foo = function () { };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var D = (function () {
     function D() {
     }
     D.prototype.foo2 = function () { };
+    __names(D.prototype, ["foo2"]);
     return D;
 }());
 var E = (function (_super) {
@@ -62,6 +78,7 @@ var E = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     E.prototype.foo3 = function () { };
+    __names(E.prototype, ["foo3"]);
     return E;
 }(C));
 var F = (function (_super) {
@@ -70,6 +87,7 @@ var F = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     F.prototype.foo4 = function () { };
+    __names(F.prototype, ["foo4"]);
     return F;
 }(C));
 var c, d, e, f;
diff --git a/tests/baselines/reference/unionTypesAssignability.js b/tests/baselines/reference/unionTypesAssignability.js
index a26de7d2747dd..b9db9a0917370 100644
--- a/tests/baselines/reference/unionTypesAssignability.js
+++ b/tests/baselines/reference/unionTypesAssignability.js
@@ -84,6 +84,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var unionNumberString;
 var C = (function () {
     function C() {
@@ -96,6 +110,7 @@ var D = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     D.prototype.foo1 = function () { };
+    __names(D.prototype, ["foo1"]);
     return D;
 }(C));
 var E = (function (_super) {
@@ -104,6 +119,7 @@ var E = (function (_super) {
         return _super !== null && _super.apply(this, arguments) || this;
     }
     E.prototype.foo2 = function () { };
+    __names(E.prototype, ["foo2"]);
     return E;
 }(C));
 var unionDE;
diff --git a/tests/baselines/reference/unknownTypeArgOnCall.js b/tests/baselines/reference/unknownTypeArgOnCall.js
index 129e2e351f15a..bd4bdbc9682d5 100644
--- a/tests/baselines/reference/unknownTypeArgOnCall.js
+++ b/tests/baselines/reference/unknownTypeArgOnCall.js
@@ -9,12 +9,27 @@ var r = f.clone<Uhhhh>()
 
 
 //// [unknownTypeArgOnCall.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Foo = (function () {
     function Foo() {
     }
     Foo.prototype.clone = function () {
         return null;
     };
+    __names(Foo.prototype, ["clone"]);
     return Foo;
 }());
 var f = new Foo();
diff --git a/tests/baselines/reference/unspecializedConstraints.js b/tests/baselines/reference/unspecializedConstraints.js
index 4c459c29be1d6..d21e1adc34b0e 100644
--- a/tests/baselines/reference/unspecializedConstraints.js
+++ b/tests/baselines/reference/unspecializedConstraints.js
@@ -164,6 +164,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var ts;
 (function (ts) {
     var Symbol = (function () {
@@ -233,6 +247,7 @@ var ts;
         };
         Type.prototype.isSubTypeOf = function (type) {
         };
+        __names(Type.prototype, ["equals", "getProperties", "getProperty", "getPropertyByName", "getPropertyCount", "getSignature", "getSignatureCount", "getSignatures", "isPrimitive", "isObjectType", "isTypeParameter", "isSubTypeOf"]);
         return Type;
     }(Symbol));
     var Property = (function (_super) {
@@ -249,6 +264,7 @@ var ts;
                 this.flags === other.flags &&
                 this.type.equals(other.type);
         };
+        __names(Property.prototype, ["equals"]);
         return Property;
     }(Symbol));
     var PropertyFlags;
@@ -275,6 +291,7 @@ var ts;
             return this.equalsNoReturn(other) &&
                 this.returnType.equals(other.returnType);
         };
+        __names(Signature.prototype, ["equalsNoReturn", "equals"]);
         return Signature;
     }(Symbol));
     var Parameter = (function (_super) {
@@ -291,6 +308,7 @@ var ts;
                 this.flags === other.flags &&
                 this.type.equals(other.type);
         };
+        __names(Parameter.prototype, ["equals"]);
         return Parameter;
     }(Symbol));
     var ParameterFlags;
diff --git a/tests/baselines/reference/unusedClassesinModule1.js b/tests/baselines/reference/unusedClassesinModule1.js
index 4ffdc0d881280..888619d512649 100644
--- a/tests/baselines/reference/unusedClassesinModule1.js
+++ b/tests/baselines/reference/unusedClassesinModule1.js
@@ -7,6 +7,20 @@ module A {
 }
 
 //// [unusedClassesinModule1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A;
 (function (A) {
     var Calculator = (function () {
@@ -14,6 +28,7 @@ var A;
         }
         Calculator.prototype.handelChar = function () {
         };
+        __names(Calculator.prototype, ["handelChar"]);
         return Calculator;
     }());
 })(A || (A = {}));
diff --git a/tests/baselines/reference/unusedIdentifiersConsolidated1.js b/tests/baselines/reference/unusedIdentifiersConsolidated1.js
index 401da10769792..45e2d5331982f 100644
--- a/tests/baselines/reference/unusedIdentifiersConsolidated1.js
+++ b/tests/baselines/reference/unusedIdentifiersConsolidated1.js
@@ -102,6 +102,20 @@ namespace Greeter {
 }
 
 //// [unusedIdentifiersConsolidated1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var __extends = (this && this.__extends) || (function () {
     var extendStatics = Object.setPrototypeOf ||
         ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
@@ -128,6 +142,7 @@ var Dummy = (function () {
     };
     Dummy.prototype.unUsedPrivateFunction = function () {
     };
+    __names(Dummy.prototype, ["greeter", "usedPrivateFunction", "unUsedPrivateFunction"]);
     return Dummy;
 }());
 var user = "Jane User";
@@ -144,6 +159,7 @@ var Validation;
         };
         LettersOnlyValidator.prototype.unUsedPrivateFunction = function () {
         };
+        __names(LettersOnlyValidator.prototype, ["isAcceptable", "unUsedPrivateFunction"]);
         return LettersOnlyValidator;
     }());
     Validation.LettersOnlyValidator = LettersOnlyValidator;
@@ -153,6 +169,7 @@ var Validation;
         ZipCodeValidator.prototype.isAcceptable = function (s3) {
             return s3.length === 5;
         };
+        __names(ZipCodeValidator.prototype, ["isAcceptable"]);
         return ZipCodeValidator;
     }());
     Validation.ZipCodeValidator = ZipCodeValidator;
diff --git a/tests/baselines/reference/unusedImports10.js b/tests/baselines/reference/unusedImports10.js
index 5f40c1f1fa18d..25dc307b927a3 100644
--- a/tests/baselines/reference/unusedImports10.js
+++ b/tests/baselines/reference/unusedImports10.js
@@ -11,6 +11,20 @@ module B {
 }
 
 //// [unusedImports10.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A;
 (function (A) {
     var Calculator = (function () {
@@ -18,6 +32,7 @@ var A;
         }
         Calculator.prototype.handelChar = function () {
         };
+        __names(Calculator.prototype, ["handelChar"]);
         return Calculator;
     }());
     A.Calculator = Calculator;
diff --git a/tests/baselines/reference/unusedImports2.js b/tests/baselines/reference/unusedImports2.js
index 5f01507a44431..424c980a93d8b 100644
--- a/tests/baselines/reference/unusedImports2.js
+++ b/tests/baselines/reference/unusedImports2.js
@@ -18,11 +18,26 @@ x.handleChar();
 
 //// [file1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Calculator = (function () {
     function Calculator() {
     }
     Calculator.prototype.handleChar = function () { };
+    __names(Calculator.prototype, ["handleChar"]);
     return Calculator;
 }());
 exports.Calculator = Calculator;
diff --git a/tests/baselines/reference/unusedImports3.js b/tests/baselines/reference/unusedImports3.js
index 788cecf54703b..18750f668c214 100644
--- a/tests/baselines/reference/unusedImports3.js
+++ b/tests/baselines/reference/unusedImports3.js
@@ -21,11 +21,26 @@ test2();
 
 //// [file1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Calculator = (function () {
     function Calculator() {
     }
     Calculator.prototype.handleChar = function () { };
+    __names(Calculator.prototype, ["handleChar"]);
     return Calculator;
 }());
 exports.Calculator = Calculator;
diff --git a/tests/baselines/reference/unusedImports4.js b/tests/baselines/reference/unusedImports4.js
index cfcc9eb1a61c0..4d7e0bb332813 100644
--- a/tests/baselines/reference/unusedImports4.js
+++ b/tests/baselines/reference/unusedImports4.js
@@ -22,11 +22,26 @@ test2();
 
 //// [file1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Calculator = (function () {
     function Calculator() {
     }
     Calculator.prototype.handleChar = function () { };
+    __names(Calculator.prototype, ["handleChar"]);
     return Calculator;
 }());
 exports.Calculator = Calculator;
diff --git a/tests/baselines/reference/unusedImports5.js b/tests/baselines/reference/unusedImports5.js
index 0ee931e57a59b..1437b8b91df29 100644
--- a/tests/baselines/reference/unusedImports5.js
+++ b/tests/baselines/reference/unusedImports5.js
@@ -22,11 +22,26 @@ test();
 
 //// [file1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Calculator = (function () {
     function Calculator() {
     }
     Calculator.prototype.handleChar = function () { };
+    __names(Calculator.prototype, ["handleChar"]);
     return Calculator;
 }());
 exports.Calculator = Calculator;
diff --git a/tests/baselines/reference/unusedImports6.js b/tests/baselines/reference/unusedImports6.js
index ea7392de4e15c..f754e235b9045 100644
--- a/tests/baselines/reference/unusedImports6.js
+++ b/tests/baselines/reference/unusedImports6.js
@@ -22,11 +22,26 @@ import d from "./file1"
 
 //// [file1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Calculator = (function () {
     function Calculator() {
     }
     Calculator.prototype.handleChar = function () { };
+    __names(Calculator.prototype, ["handleChar"]);
     return Calculator;
 }());
 exports.Calculator = Calculator;
diff --git a/tests/baselines/reference/unusedImports7.js b/tests/baselines/reference/unusedImports7.js
index dc4f707f62999..0c3ba963d131e 100644
--- a/tests/baselines/reference/unusedImports7.js
+++ b/tests/baselines/reference/unusedImports7.js
@@ -20,11 +20,26 @@ import * as n from "./file1"
 
 //// [file1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Calculator = (function () {
     function Calculator() {
     }
     Calculator.prototype.handleChar = function () { };
+    __names(Calculator.prototype, ["handleChar"]);
     return Calculator;
 }());
 exports.Calculator = Calculator;
diff --git a/tests/baselines/reference/unusedImports8.js b/tests/baselines/reference/unusedImports8.js
index 88983976362b1..2b6294f65c911 100644
--- a/tests/baselines/reference/unusedImports8.js
+++ b/tests/baselines/reference/unusedImports8.js
@@ -22,11 +22,26 @@ t1();
 
 //// [file1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Calculator = (function () {
     function Calculator() {
     }
     Calculator.prototype.handleChar = function () { };
+    __names(Calculator.prototype, ["handleChar"]);
     return Calculator;
 }());
 exports.Calculator = Calculator;
diff --git a/tests/baselines/reference/unusedImports9.js b/tests/baselines/reference/unusedImports9.js
index e089a1445b9c3..5f1a45f37a66e 100644
--- a/tests/baselines/reference/unusedImports9.js
+++ b/tests/baselines/reference/unusedImports9.js
@@ -18,11 +18,26 @@ import c = require('./file1')
 
 //// [file1.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var Calculator = (function () {
     function Calculator() {
     }
     Calculator.prototype.handleChar = function () { };
+    __names(Calculator.prototype, ["handleChar"]);
     return Calculator;
 }());
 exports.Calculator = Calculator;
diff --git a/tests/baselines/reference/unusedInvalidTypeArguments.js b/tests/baselines/reference/unusedInvalidTypeArguments.js
index 9f32181a0fb34..5926ff9013590 100644
--- a/tests/baselines/reference/unusedInvalidTypeArguments.js
+++ b/tests/baselines/reference/unusedInvalidTypeArguments.js
@@ -106,6 +106,20 @@ var __extends = (this && this.__extends) || (function () {
         d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
     };
 })();
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var unknown_1 = require("unknown");
 var C = (function (_super) {
@@ -117,6 +131,7 @@ var C = (function (_super) {
         _super.prototype.m.call(this, 1);
         _super.prototype.m.call(this); // Should get error for type argument
     };
+    __names(C.prototype, ["m"]);
     return C;
 }(unknown_1.A));
 exports.C = C;
diff --git a/tests/baselines/reference/unusedLocalProperty.js b/tests/baselines/reference/unusedLocalProperty.js
index a124b752125d7..ef9c41c51c459 100644
--- a/tests/baselines/reference/unusedLocalProperty.js
+++ b/tests/baselines/reference/unusedLocalProperty.js
@@ -13,6 +13,20 @@ class Animal {
 
 
 //// [unusedLocalProperty.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Animal = (function () {
     function Animal(species) {
         this.species = species;
@@ -21,5 +35,6 @@ var Animal = (function () {
         var species = this.species;
         console.log(species);
     };
+    __names(Animal.prototype, ["printSpecies"]);
     return Animal;
 }());
diff --git a/tests/baselines/reference/unusedLocalsAndParameters.js b/tests/baselines/reference/unusedLocalsAndParameters.js
index eb4db589c5369..e4b3490a945d9 100644
--- a/tests/baselines/reference/unusedLocalsAndParameters.js
+++ b/tests/baselines/reference/unusedLocalsAndParameters.js
@@ -85,6 +85,20 @@ namespace N {
 
 //// [unusedLocalsAndParameters.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 // function declaration paramter
 function f(a) {
@@ -110,6 +124,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, ["method"]);
     return C;
 }());
 var E = (function () {
@@ -125,6 +140,7 @@ var E = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(class_1.prototype, ["method"]);
     return class_1;
 }());
 var o = {
diff --git a/tests/baselines/reference/unusedLocalsAndParametersDeferred.js b/tests/baselines/reference/unusedLocalsAndParametersDeferred.js
index faa5ad2b0dfe2..4b6cbce4f187b 100644
--- a/tests/baselines/reference/unusedLocalsAndParametersDeferred.js
+++ b/tests/baselines/reference/unusedLocalsAndParametersDeferred.js
@@ -161,6 +161,20 @@ N;
 
 //// [unusedLocalsAndParametersDeferred.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 function defered(a) {
     return a();
@@ -210,6 +224,7 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(C.prototype, ["method"]);
     return C;
 }());
 new C();
@@ -237,6 +252,7 @@ var E = (function () {
         enumerable: true,
         configurable: true
     });
+    __names(class_1.prototype, ["method"]);
     return class_1;
 }());
 new E();
diff --git a/tests/baselines/reference/unusedLocalsAndParametersOverloadSignatures.js b/tests/baselines/reference/unusedLocalsAndParametersOverloadSignatures.js
index 559a2cb7761e8..ae887bb7eeb66 100644
--- a/tests/baselines/reference/unusedLocalsAndParametersOverloadSignatures.js
+++ b/tests/baselines/reference/unusedLocalsAndParametersOverloadSignatures.js
@@ -24,6 +24,20 @@ export function genericFunc(details: number, message: any): any {
 
 //// [unusedLocalsAndParametersOverloadSignatures.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 function func(details, message) {
     return details + message;
@@ -36,6 +50,7 @@ var C = (function () {
     C.prototype.method = function (details, message) {
         return details + message;
     };
+    __names(C.prototype, ["method"]);
     return C;
 }());
 exports.C = C;
diff --git a/tests/baselines/reference/unusedLocalsInMethod1.js b/tests/baselines/reference/unusedLocalsInMethod1.js
index cec478ef204db..9c4a5213ebd07 100644
--- a/tests/baselines/reference/unusedLocalsInMethod1.js
+++ b/tests/baselines/reference/unusedLocalsInMethod1.js
@@ -6,11 +6,26 @@ class greeter {
 }
 
 //// [unusedLocalsInMethod1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var greeter = (function () {
     function greeter() {
     }
     greeter.prototype.function1 = function () {
         var x = 10;
     };
+    __names(greeter.prototype, ["function1"]);
     return greeter;
 }());
diff --git a/tests/baselines/reference/unusedLocalsInMethod2.js b/tests/baselines/reference/unusedLocalsInMethod2.js
index f02d27f586e5d..cf25b93466ce6 100644
--- a/tests/baselines/reference/unusedLocalsInMethod2.js
+++ b/tests/baselines/reference/unusedLocalsInMethod2.js
@@ -7,6 +7,20 @@ class greeter {
 }
 
 //// [unusedLocalsInMethod2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var greeter = (function () {
     function greeter() {
     }
@@ -14,5 +28,6 @@ var greeter = (function () {
         var x, y = 10;
         y++;
     };
+    __names(greeter.prototype, ["function1"]);
     return greeter;
 }());
diff --git a/tests/baselines/reference/unusedLocalsInMethod3.js b/tests/baselines/reference/unusedLocalsInMethod3.js
index e13958c13b6d9..1b6480078ee05 100644
--- a/tests/baselines/reference/unusedLocalsInMethod3.js
+++ b/tests/baselines/reference/unusedLocalsInMethod3.js
@@ -7,6 +7,20 @@ class greeter {
 }
 
 //// [unusedLocalsInMethod3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var greeter = (function () {
     function greeter() {
     }
@@ -14,5 +28,6 @@ var greeter = (function () {
         var x, y;
         y = 1;
     };
+    __names(greeter.prototype, ["function1"]);
     return greeter;
 }());
diff --git a/tests/baselines/reference/unusedMultipleParameters1InMethodDeclaration.js b/tests/baselines/reference/unusedMultipleParameters1InMethodDeclaration.js
index 3189618a48a06..59a5829bf7806 100644
--- a/tests/baselines/reference/unusedMultipleParameters1InMethodDeclaration.js
+++ b/tests/baselines/reference/unusedMultipleParameters1InMethodDeclaration.js
@@ -7,6 +7,20 @@ class Dummy {
 }
 
 //// [unusedMultipleParameters1InMethodDeclaration.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Dummy = (function () {
     function Dummy() {
     }
@@ -14,5 +28,6 @@ var Dummy = (function () {
         var unused = 20;
         person2 = "dummy value";
     };
+    __names(Dummy.prototype, ["greeter"]);
     return Dummy;
 }());
diff --git a/tests/baselines/reference/unusedMultipleParameters2InMethodDeclaration.js b/tests/baselines/reference/unusedMultipleParameters2InMethodDeclaration.js
index 357a96c2e24e4..06d97116da2c3 100644
--- a/tests/baselines/reference/unusedMultipleParameters2InMethodDeclaration.js
+++ b/tests/baselines/reference/unusedMultipleParameters2InMethodDeclaration.js
@@ -7,6 +7,20 @@ class Dummy {
 }
 
 //// [unusedMultipleParameters2InMethodDeclaration.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Dummy = (function () {
     function Dummy() {
     }
@@ -14,5 +28,6 @@ var Dummy = (function () {
         var unused = 20;
         person2 = "dummy value";
     };
+    __names(Dummy.prototype, ["greeter"]);
     return Dummy;
 }());
diff --git a/tests/baselines/reference/unusedParametersInLambda1.js b/tests/baselines/reference/unusedParametersInLambda1.js
index 58fe26677bf84..b75be92593590 100644
--- a/tests/baselines/reference/unusedParametersInLambda1.js
+++ b/tests/baselines/reference/unusedParametersInLambda1.js
@@ -7,6 +7,20 @@ class A {
 }
 
 //// [unusedParametersInLambda1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -14,5 +28,6 @@ var A = (function () {
         return function (X) {
         };
     };
+    __names(A.prototype, ["f1"]);
     return A;
 }());
diff --git a/tests/baselines/reference/unusedParametersInLambda2.js b/tests/baselines/reference/unusedParametersInLambda2.js
index 836c88a725015..10f5d131ea066 100644
--- a/tests/baselines/reference/unusedParametersInLambda2.js
+++ b/tests/baselines/reference/unusedParametersInLambda2.js
@@ -8,6 +8,20 @@ class A {
 }
 
 //// [unusedParametersInLambda2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -16,5 +30,6 @@ var A = (function () {
             Y;
         };
     };
+    __names(A.prototype, ["f1"]);
     return A;
 }());
diff --git a/tests/baselines/reference/unusedParametersThis.js b/tests/baselines/reference/unusedParametersThis.js
index 5e96781edaa72..45e379de380ba 100644
--- a/tests/baselines/reference/unusedParametersThis.js
+++ b/tests/baselines/reference/unusedParametersThis.js
@@ -34,6 +34,20 @@ var f2 = function f2(this: A): number {
 };
 
 //// [unusedParametersThis.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -56,6 +70,7 @@ var A = (function () {
     A.staticMethod = function () {
         return this.a;
     };
+    __names(A.prototype, ["method", "method2", "method3", "method4"]);
     return A;
 }());
 function f() {
diff --git a/tests/baselines/reference/unusedPrivateMembers.js b/tests/baselines/reference/unusedPrivateMembers.js
index 35efb9bd91285..370caa430df4d 100644
--- a/tests/baselines/reference/unusedPrivateMembers.js
+++ b/tests/baselines/reference/unusedPrivateMembers.js
@@ -49,6 +49,20 @@ class Test5<T> {
 
 
 //// [unusedPrivateMembers.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Test1 = (function () {
     function Test1() {
     }
@@ -58,6 +72,7 @@ var Test1 = (function () {
         var x = new Test1();
         x.initializeInternal();
     };
+    __names(Test1.prototype, ["initializeInternal", "test"]);
     return Test1;
 }());
 var Test2 = (function () {
@@ -68,6 +83,7 @@ var Test2 = (function () {
         var x = new Test2();
         x.p;
     };
+    __names(Test2.prototype, ["test"]);
     return Test2;
 }());
 var Test3 = (function () {
@@ -84,6 +100,7 @@ var Test3 = (function () {
         var x = new Test3();
         x.x;
     };
+    __names(Test3.prototype, ["test"]);
     return Test3;
 }());
 var Test4 = (function () {
@@ -100,6 +117,7 @@ var Test4 = (function () {
         var x = new Test4();
         x.x;
     };
+    __names(Test4.prototype, ["test"]);
     return Test4;
 }());
 var Test5 = (function () {
@@ -109,5 +127,6 @@ var Test5 = (function () {
         var x = new Test5();
         x.p;
     };
+    __names(Test5.prototype, ["test"]);
     return Test5;
 }());
diff --git a/tests/baselines/reference/unusedPrivateMethodInClass1.js b/tests/baselines/reference/unusedPrivateMethodInClass1.js
index 9383d12dc557b..ec7decda4b3bd 100644
--- a/tests/baselines/reference/unusedPrivateMethodInClass1.js
+++ b/tests/baselines/reference/unusedPrivateMethodInClass1.js
@@ -7,6 +7,20 @@ class greeter {
 }
 
 //// [unusedPrivateMethodInClass1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var greeter = (function () {
     function greeter() {
     }
@@ -14,5 +28,6 @@ var greeter = (function () {
         var y = 10;
         y++;
     };
+    __names(greeter.prototype, ["function1"]);
     return greeter;
 }());
diff --git a/tests/baselines/reference/unusedPrivateMethodInClass2.js b/tests/baselines/reference/unusedPrivateMethodInClass2.js
index 247a1be4f5919..f7a0bdad58558 100644
--- a/tests/baselines/reference/unusedPrivateMethodInClass2.js
+++ b/tests/baselines/reference/unusedPrivateMethodInClass2.js
@@ -12,6 +12,20 @@ class greeter {
 }
 
 //// [unusedPrivateMethodInClass2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var greeter = (function () {
     function greeter() {
     }
@@ -23,5 +37,6 @@ var greeter = (function () {
         var y = 10;
         y++;
     };
+    __names(greeter.prototype, ["function1", "function2"]);
     return greeter;
 }());
diff --git a/tests/baselines/reference/unusedPrivateMethodInClass3.js b/tests/baselines/reference/unusedPrivateMethodInClass3.js
index 94c9c1d8ff4ab..bc3e269325bb2 100644
--- a/tests/baselines/reference/unusedPrivateMethodInClass3.js
+++ b/tests/baselines/reference/unusedPrivateMethodInClass3.js
@@ -17,6 +17,20 @@ class greeter {
 }
 
 //// [unusedPrivateMethodInClass3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var greeter = (function () {
     function greeter() {
     }
@@ -32,5 +46,6 @@ var greeter = (function () {
         var y = 10;
         y++;
     };
+    __names(greeter.prototype, ["function1", "function2", "function3"]);
     return greeter;
 }());
diff --git a/tests/baselines/reference/unusedPrivateMethodInClass4.js b/tests/baselines/reference/unusedPrivateMethodInClass4.js
index f767a13917c6c..0552eb1c6ed22 100644
--- a/tests/baselines/reference/unusedPrivateMethodInClass4.js
+++ b/tests/baselines/reference/unusedPrivateMethodInClass4.js
@@ -18,6 +18,20 @@ class greeter {
 }
 
 //// [unusedPrivateMethodInClass4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var greeter = (function () {
     function greeter() {
     }
@@ -34,5 +48,6 @@ var greeter = (function () {
         y++;
         this.function2();
     };
+    __names(greeter.prototype, ["function1", "function2", "function3"]);
     return greeter;
 }());
diff --git a/tests/baselines/reference/unusedPrivateVariableInClass4.js b/tests/baselines/reference/unusedPrivateVariableInClass4.js
index 809e6cf754e9c..de6bbe0d0054e 100644
--- a/tests/baselines/reference/unusedPrivateVariableInClass4.js
+++ b/tests/baselines/reference/unusedPrivateVariableInClass4.js
@@ -10,11 +10,26 @@ class greeter {
 }
 
 //// [unusedPrivateVariableInClass4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var greeter = (function () {
     function greeter() {
     }
     greeter.prototype.method1 = function () {
         this.x = "dummy value";
     };
+    __names(greeter.prototype, ["method1"]);
     return greeter;
 }());
diff --git a/tests/baselines/reference/unusedSingleParameterInMethodDeclaration.js b/tests/baselines/reference/unusedSingleParameterInMethodDeclaration.js
index a173da2a95edf..5aa6a8b7438d8 100644
--- a/tests/baselines/reference/unusedSingleParameterInMethodDeclaration.js
+++ b/tests/baselines/reference/unusedSingleParameterInMethodDeclaration.js
@@ -6,11 +6,26 @@ class Dummy {
 }
 
 //// [unusedSingleParameterInMethodDeclaration.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Dummy = (function () {
     function Dummy() {
     }
     Dummy.prototype.greeter = function (person) {
         var unused = 20;
     };
+    __names(Dummy.prototype, ["greeter"]);
     return Dummy;
 }());
diff --git a/tests/baselines/reference/unusedTypeParameterInLambda1.js b/tests/baselines/reference/unusedTypeParameterInLambda1.js
index 78433757ed79c..bfcc70d2d87ca 100644
--- a/tests/baselines/reference/unusedTypeParameterInLambda1.js
+++ b/tests/baselines/reference/unusedTypeParameterInLambda1.js
@@ -8,6 +8,20 @@ class A {
 }
 
 //// [unusedTypeParameterInLambda1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -15,5 +29,6 @@ var A = (function () {
         return function () {
         };
     };
+    __names(A.prototype, ["f1"]);
     return A;
 }());
diff --git a/tests/baselines/reference/unusedTypeParameterInLambda2.js b/tests/baselines/reference/unusedTypeParameterInLambda2.js
index 46332f44dbdfc..e9c2c88a6a570 100644
--- a/tests/baselines/reference/unusedTypeParameterInLambda2.js
+++ b/tests/baselines/reference/unusedTypeParameterInLambda2.js
@@ -9,6 +9,20 @@ class A {
 }
 
 //// [unusedTypeParameterInLambda2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -18,5 +32,6 @@ var A = (function () {
             a;
         };
     };
+    __names(A.prototype, ["f1"]);
     return A;
 }());
diff --git a/tests/baselines/reference/unusedTypeParameterInMethod1.js b/tests/baselines/reference/unusedTypeParameterInMethod1.js
index d35afc1cdb330..b28fffce5069a 100644
--- a/tests/baselines/reference/unusedTypeParameterInMethod1.js
+++ b/tests/baselines/reference/unusedTypeParameterInMethod1.js
@@ -9,6 +9,20 @@ class A {
 }
 
 //// [unusedTypeParameterInMethod1.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -18,5 +32,6 @@ var A = (function () {
         a;
         b;
     };
+    __names(A.prototype, ["f1"]);
     return A;
 }());
diff --git a/tests/baselines/reference/unusedTypeParameterInMethod2.js b/tests/baselines/reference/unusedTypeParameterInMethod2.js
index c5b70ef8d8a50..9d737cce6f30d 100644
--- a/tests/baselines/reference/unusedTypeParameterInMethod2.js
+++ b/tests/baselines/reference/unusedTypeParameterInMethod2.js
@@ -9,6 +9,20 @@ class A {
 }
 
 //// [unusedTypeParameterInMethod2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -18,5 +32,6 @@ var A = (function () {
         a;
         b;
     };
+    __names(A.prototype, ["f1"]);
     return A;
 }());
diff --git a/tests/baselines/reference/unusedTypeParameterInMethod3.js b/tests/baselines/reference/unusedTypeParameterInMethod3.js
index 3b6a19191bb1c..15783e3ec2c5b 100644
--- a/tests/baselines/reference/unusedTypeParameterInMethod3.js
+++ b/tests/baselines/reference/unusedTypeParameterInMethod3.js
@@ -9,6 +9,20 @@ class A {
 }
 
 //// [unusedTypeParameterInMethod3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
@@ -18,5 +32,6 @@ var A = (function () {
         a;
         b;
     };
+    __names(A.prototype, ["f1"]);
     return A;
 }());
diff --git a/tests/baselines/reference/unusedTypeParameterInMethod4.js b/tests/baselines/reference/unusedTypeParameterInMethod4.js
index fcb368276d199..5fe8e59a6500f 100644
--- a/tests/baselines/reference/unusedTypeParameterInMethod4.js
+++ b/tests/baselines/reference/unusedTypeParameterInMethod4.js
@@ -6,10 +6,25 @@ class A {
 }
 
 //// [unusedTypeParameterInMethod4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var A = (function () {
     function A() {
     }
     A.prototype.f1 = function () {
     };
+    __names(A.prototype, ["f1"]);
     return A;
 }());
diff --git a/tests/baselines/reference/unusedTypeParameters2.js b/tests/baselines/reference/unusedTypeParameters2.js
index ed89c5550234c..1fb1418637d6c 100644
--- a/tests/baselines/reference/unusedTypeParameters2.js
+++ b/tests/baselines/reference/unusedTypeParameters2.js
@@ -8,11 +8,26 @@ class greeter<typeparameter1, typeparameter2> {
 }
 
 //// [unusedTypeParameters2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var greeter = (function () {
     function greeter() {
     }
     greeter.prototype.function1 = function () {
         this.x;
     };
+    __names(greeter.prototype, ["function1"]);
     return greeter;
 }());
diff --git a/tests/baselines/reference/unusedTypeParameters3.js b/tests/baselines/reference/unusedTypeParameters3.js
index 5644a177bef2a..19634509b1666 100644
--- a/tests/baselines/reference/unusedTypeParameters3.js
+++ b/tests/baselines/reference/unusedTypeParameters3.js
@@ -8,11 +8,26 @@ class greeter<typeparameter1, typeparameter2, typeparameter3> {
 }
 
 //// [unusedTypeParameters3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var greeter = (function () {
     function greeter() {
     }
     greeter.prototype.function1 = function () {
         this.x;
     };
+    __names(greeter.prototype, ["function1"]);
     return greeter;
 }());
diff --git a/tests/baselines/reference/unusedVariablesinNamespaces2.js b/tests/baselines/reference/unusedVariablesinNamespaces2.js
index f306f3992e111..c479aa8bfdd38 100644
--- a/tests/baselines/reference/unusedVariablesinNamespaces2.js
+++ b/tests/baselines/reference/unusedVariablesinNamespaces2.js
@@ -11,6 +11,20 @@ namespace Validation {
 }
 
 //// [unusedVariablesinNamespaces2.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Validation;
 (function (Validation) {
     var lettersRegexp = /^[A-Za-z]+$/;
@@ -21,6 +35,7 @@ var Validation;
         LettersOnlyValidator.prototype.isAcceptable = function (s2) {
             return lettersRegexp.test(s2);
         };
+        __names(LettersOnlyValidator.prototype, ["isAcceptable"]);
         return LettersOnlyValidator;
     }());
     Validation.LettersOnlyValidator = LettersOnlyValidator;
diff --git a/tests/baselines/reference/unusedVariablesinNamespaces3.js b/tests/baselines/reference/unusedVariablesinNamespaces3.js
index f293f589d6585..8462206adf388 100644
--- a/tests/baselines/reference/unusedVariablesinNamespaces3.js
+++ b/tests/baselines/reference/unusedVariablesinNamespaces3.js
@@ -12,6 +12,20 @@ namespace Validation {
 }
 
 //// [unusedVariablesinNamespaces3.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var Validation;
 (function (Validation) {
     var lettersRegexp = /^[A-Za-z]+$/;
@@ -23,6 +37,7 @@ var Validation;
         LettersOnlyValidator.prototype.isAcceptable = function (s2) {
             return lettersRegexp.test(s2);
         };
+        __names(LettersOnlyValidator.prototype, ["isAcceptable"]);
         return LettersOnlyValidator;
     }());
     Validation.LettersOnlyValidator = LettersOnlyValidator;
diff --git a/tests/baselines/reference/vararg.js b/tests/baselines/reference/vararg.js
index bd4a79b462631..f99b030af4a77 100644
--- a/tests/baselines/reference/vararg.js
+++ b/tests/baselines/reference/vararg.js
@@ -39,6 +39,20 @@ result+=x.fonly("a","b","c","d"); //ok
 
 
 //// [vararg.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var M;
 (function (M) {
     var C = (function () {
@@ -73,6 +87,7 @@ var M;
             }
             return builder;
         };
+        __names(C.prototype, ["f", "fnope", "fonly"]);
         return C;
     }());
     M.C = C;
diff --git a/tests/baselines/reference/variableDeclaratorResolvedDuringContextualTyping.js b/tests/baselines/reference/variableDeclaratorResolvedDuringContextualTyping.js
index ed6111ec3c570..6f66f73fd779d 100644
--- a/tests/baselines/reference/variableDeclaratorResolvedDuringContextualTyping.js
+++ b/tests/baselines/reference/variableDeclaratorResolvedDuringContextualTyping.js
@@ -126,6 +126,20 @@ class FileService {
 }
 
 //// [variableDeclaratorResolvedDuringContextualTyping.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var WinJS;
 (function (WinJS) {
 })(WinJS || (WinJS = {}));
@@ -159,5 +173,6 @@ var FileService = (function () {
             return WinJS.Promise.wrapError(new Errors.ConnectionError(xhr));
         });
     };
+    __names(FileService.prototype, ["uploadData"]);
     return FileService;
 }());
diff --git a/tests/baselines/reference/visibilityOfTypeParameters.js b/tests/baselines/reference/visibilityOfTypeParameters.js
index 3a1adf3f97d35..278ebb5280bac 100644
--- a/tests/baselines/reference/visibilityOfTypeParameters.js
+++ b/tests/baselines/reference/visibilityOfTypeParameters.js
@@ -7,6 +7,20 @@ export class MyClass {
 
 //// [visibilityOfTypeParameters.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 var MyClass = (function () {
     function MyClass() {
@@ -14,6 +28,7 @@ var MyClass = (function () {
     MyClass.prototype.myMethod = function (val) {
         return val;
     };
+    __names(MyClass.prototype, ["myMethod"]);
     return MyClass;
 }());
 exports.MyClass = MyClass;
diff --git a/tests/baselines/reference/witness.js b/tests/baselines/reference/witness.js
index ebd1669d17764..5223630a173a6 100644
--- a/tests/baselines/reference/witness.js
+++ b/tests/baselines/reference/witness.js
@@ -137,6 +137,20 @@ var qq: any;
 
 
 //// [witness.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 // Initializers
 var varInit = varInit; // any
 var pInit;
@@ -152,6 +166,7 @@ var InitClass = (function () {
         var y = this.x;
         var y;
     };
+    __names(InitClass.prototype, ["fn"]);
     return InitClass;
 }());
 // Return type
@@ -226,6 +241,7 @@ var C = (function () {
         var a;
         return new a(this.fn3);
     };
+    __names(C.prototype, ["fn1", "fn2", "fn3"]);
     return C;
 }());
 function fn5() {
diff --git a/tests/baselines/reference/wrappedAndRecursiveConstraints.js b/tests/baselines/reference/wrappedAndRecursiveConstraints.js
index 06103235ecb97..689185d1cd9f0 100644
--- a/tests/baselines/reference/wrappedAndRecursiveConstraints.js
+++ b/tests/baselines/reference/wrappedAndRecursiveConstraints.js
@@ -18,6 +18,20 @@ var r = c.foo(y);
 
 //// [wrappedAndRecursiveConstraints.js]
 // no errors expected
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(data) {
         this.data = data;
@@ -25,6 +39,7 @@ var C = (function () {
     C.prototype.foo = function (x) {
         return x;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var y = null;
diff --git a/tests/baselines/reference/wrappedAndRecursiveConstraints3.js b/tests/baselines/reference/wrappedAndRecursiveConstraints3.js
index b5d6e65a1832a..0039016b2d584 100644
--- a/tests/baselines/reference/wrappedAndRecursiveConstraints3.js
+++ b/tests/baselines/reference/wrappedAndRecursiveConstraints3.js
@@ -17,6 +17,20 @@ var r2 = r('');
 
 //// [wrappedAndRecursiveConstraints3.js]
 // no errors expected
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(x) {
     }
@@ -26,6 +40,7 @@ var C = (function () {
         }
         return bar;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c = new C({ length: 2 });
diff --git a/tests/baselines/reference/wrappedAndRecursiveConstraints4.js b/tests/baselines/reference/wrappedAndRecursiveConstraints4.js
index 2a84f8cc4262c..53bf5b1d3423f 100644
--- a/tests/baselines/reference/wrappedAndRecursiveConstraints4.js
+++ b/tests/baselines/reference/wrappedAndRecursiveConstraints4.js
@@ -14,6 +14,20 @@ var r = c.foo('');
 var r2 = r({ length: 3, charAt: (x: number) => { '' } }); // error
 
 //// [wrappedAndRecursiveConstraints4.js]
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true, writable: false, enumerable: false
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 var C = (function () {
     function C(x) {
     }
@@ -23,6 +37,7 @@ var C = (function () {
         }
         return bar;
     };
+    __names(C.prototype, ["foo"]);
     return C;
 }());
 var c = new C({ length: 2 });

From f59c1bca5f73d7464dd1f826ba3015e7615d9aad Mon Sep 17 00:00:00 2001
From: Wesley Wigham <wewigham@microsoft.com>
Date: Mon, 7 Aug 2017 18:02:56 -0700
Subject: [PATCH 3/4] Leverage defaults

---
 src/compiler/transformers/es2015.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/transformers/es2015.ts b/src/compiler/transformers/es2015.ts
index aa623e628ecf9..7d38c3a1cd305 100644
--- a/src/compiler/transformers/es2015.ts
+++ b/src/compiler/transformers/es2015.ts
@@ -4137,7 +4137,7 @@ namespace ts {
             var __names = (this && this.__names) || (function() {
                 var name = Object.defineProperty ? (function(proto, name) {
                     Object.defineProperty(proto[name], 'name', { 
-                        value: name, configurable: true, writable: false, enumerable: false
+                        value: name, configurable: true
                     });
                 }) : (function(proto, name) {
                     proto[name].name = name;

From 0df7d2c74aa1a4dcbb63347d94dabdafca00ab00 Mon Sep 17 00:00:00 2001
From: Wesley Wigham <wewigham@microsoft.com>
Date: Mon, 7 Aug 2017 18:06:28 -0700
Subject: [PATCH 4/4] Accept new baselines

---
 tests/baselines/reference/2dArrays.js          |  2 +-
 .../baselines/reference/ClassDeclaration11.js  |  2 +-
 .../baselines/reference/ClassDeclaration13.js  |  2 +-
 .../baselines/reference/ClassDeclaration21.js  |  2 +-
 .../baselines/reference/ClassDeclaration22.js  |  2 +-
 .../reference/ES5For-ofTypeCheck10.js          |  2 +-
 .../baselines/reference/ES5SymbolProperty2.js  |  2 +-
 .../baselines/reference/ES5SymbolProperty3.js  |  2 +-
 .../baselines/reference/ES5SymbolProperty4.js  |  2 +-
 .../baselines/reference/ES5SymbolProperty5.js  |  2 +-
 .../baselines/reference/ES5SymbolProperty6.js  |  2 +-
 .../baselines/reference/ES5SymbolProperty7.js  |  2 +-
 ...hichExtendsInterfaceWithInaccessibleType.js |  2 +-
 tests/baselines/reference/Protected4.js        |  2 +-
 tests/baselines/reference/Protected7.js        |  2 +-
 ...portedAndNonExportedClassesOfTheSameName.js |  2 +-
 tests/baselines/reference/abstractProperty.js  |  2 +-
 .../accessInstanceMemberFromStaticMethod01.js  |  2 +-
 .../accessOverriddenBaseClassMember1.js        |  2 +-
 .../reference/accessibilityModifiers.js        |  2 +-
 .../ambiguousCallsWhereReturnTypesAgree.js     |  2 +-
 tests/baselines/reference/anonterface.js       |  2 +-
 .../reference/anonymousClassExpression2.js     |  2 +-
 tests/baselines/reference/argsInScope.js       |  2 +-
 .../reference/arrayAssignmentTest1.js          |  2 +-
 .../reference/arrayAssignmentTest2.js          |  2 +-
 .../reference/arrayAssignmentTest4.js          |  2 +-
 .../reference/arrayAssignmentTest5.js          |  2 +-
 .../reference/arrayAssignmentTest6.js          |  2 +-
 .../reference/arrayBestCommonTypes.js          |  2 +-
 .../reference/arrayOfExportedClass.js          |  2 +-
 .../reference/arrayReferenceWithoutTypeArgs.js |  2 +-
 tests/baselines/reference/arrayconcat.js       |  2 +-
 .../reference/arrowFunctionExpressions.js      |  2 +-
 tests/baselines/reference/asiAbstract.js       |  2 +-
 tests/baselines/reference/asiInES6Classes.js   |  2 +-
 .../reference/asiPublicPrivateProtected.js     |  2 +-
 .../reference/assertInWrapSomeTypeParameter.js |  2 +-
 .../reference/assignToExistingClass.js         |  2 +-
 ...tCompatInterfaceWithStringIndexSignature.js |  2 +-
 .../reference/assignmentLHSIsValue.js          |  2 +-
 .../reference/asyncAwaitIsolatedModules_es5.js |  2 +-
 tests/baselines/reference/asyncAwait_es5.js    |  2 +-
 .../reference/asyncImportedPromise_es5.js      |  2 +-
 .../baselines/reference/augmentedTypesClass.js |  2 +-
 .../reference/augmentedTypesClass2.js          |  2 +-
 .../reference/augmentedTypesClass2a.js         |  2 +-
 .../reference/augmentedTypesClass3.js          |  2 +-
 .../reference/augmentedTypesClass4.js          |  2 +-
 .../baselines/reference/augmentedTypesEnum.js  |  2 +-
 .../baselines/reference/augmentedTypesEnum2.js |  2 +-
 .../reference/augmentedTypesExternalModule1.js |  2 +-
 .../reference/augmentedTypesFunction.js        |  2 +-
 .../reference/augmentedTypesInterface.js       |  2 +-
 .../reference/augmentedTypesModules.js         |  2 +-
 .../reference/augmentedTypesModules2.js        |  2 +-
 .../reference/augmentedTypesModules3.js        |  2 +-
 .../reference/augmentedTypesModules3b.js       |  2 +-
 .../reference/augmentedTypesModules4.js        |  2 +-
 tests/baselines/reference/augmentedTypesVar.js |  2 +-
 tests/baselines/reference/autoLift2.js         |  2 +-
 tests/baselines/reference/autolift4.js         |  2 +-
 tests/baselines/reference/avoid.js             |  2 +-
 tests/baselines/reference/baseCheck.js         |  2 +-
 .../reference/baseTypeAfterDerivedType.js      |  2 +-
 .../baseTypeWrappingInstantiationChain.js      |  2 +-
 .../reference/binopAssignmentShouldHaveType.js |  2 +-
 ...ckScopedFunctionDeclarationInStrictClass.js |  2 +-
 .../blockScopedVariablesUseBeforeDef.js        |  2 +-
 ...nctionWithIncorrectNumberOfTypeArguments.js |  2 +-
 ...callGenericFunctionWithZeroTypeArguments.js |  2 +-
 .../callNonGenericFunctionWithTypeArguments.js |  2 +-
 .../callOverloadViaElementAccessExpression.js  |  2 +-
 tests/baselines/reference/callOverloads1.js    |  2 +-
 tests/baselines/reference/callOverloads2.js    |  2 +-
 tests/baselines/reference/callOverloads3.js    |  2 +-
 tests/baselines/reference/callOverloads4.js    |  2 +-
 tests/baselines/reference/callOverloads5.js    |  2 +-
 ...atureWithOptionalParameterAndInitializer.js |  2 +-
 ...esWithAccessibilityModifiersOnParameters.js |  2 +-
 .../callSignaturesWithDuplicateParameters.js   |  2 +-
 .../callSignaturesWithOptionalParameters.js    |  2 +-
 .../callSignaturesWithOptionalParameters2.js   |  2 +-
 .../callSignaturesWithParameterInitializers.js |  2 +-
 ...callSignaturesWithParameterInitializers2.js |  2 +-
 tests/baselines/reference/callWithSpread.js    |  2 +-
 .../captureSuperPropertyAccessInSuperCall01.js |  2 +-
 .../reference/captureThisInSuperCall.js        |  2 +-
 .../reference/capturedLetConstInLoop10.js      |  2 +-
 .../reference/capturedLetConstInLoop13.js      |  2 +-
 .../reference/capturedLetConstInLoop9.js       |  2 +-
 ...ParameterConstrainedToOtherTypeParameter.js |  2 +-
 ...arameterConstrainedToOtherTypeParameter2.js |  2 +-
 .../reference/checkJsxChildrenProperty10.js    |  2 +-
 .../reference/checkJsxChildrenProperty11.js    |  2 +-
 .../reference/checkJsxChildrenProperty12.js    |  2 +-
 .../reference/checkJsxChildrenProperty13.js    |  2 +-
 .../reference/checkJsxChildrenProperty3.js     |  2 +-
 .../reference/checkJsxChildrenProperty4.js     |  2 +-
 .../reference/checkJsxChildrenProperty5.js     |  2 +-
 .../reference/checkJsxChildrenProperty6.js     |  2 +-
 .../reference/checkJsxChildrenProperty7.js     |  2 +-
 .../reference/checkJsxChildrenProperty8.js     |  2 +-
 .../checkSwitchStatementIfCaseTypeIsString.js  |  2 +-
 .../reference/classAbstractAsIdentifier.js     |  2 +-
 .../reference/classAbstractCrashedOnce.js      |  2 +-
 .../reference/classAbstractExtends.js          |  2 +-
 .../reference/classAbstractGeneric.js          |  2 +-
 .../reference/classAbstractInstantiations2.js  |  2 +-
 .../classAbstractMethodInNonAbstractClass.js   |  2 +-
 .../classAbstractMethodWithImplementation.js   |  2 +-
 .../reference/classAbstractOverloads.js        |  2 +-
 .../classAbstractOverrideWithAbstract.js       |  2 +-
 .../reference/classAbstractSuperCalls.js       |  2 +-
 .../classAbstractUsingAbstractMethod1.js       |  2 +-
 .../classAbstractUsingAbstractMethods2.js      |  2 +-
 tests/baselines/reference/classBlockScoping.js |  2 +-
 .../classConstructorAccessibility2.js          |  2 +-
 .../classConstructorAccessibility4.js          |  2 +-
 tests/baselines/reference/classExpression4.js  |  2 +-
 tests/baselines/reference/classExpression5.js  |  2 +-
 .../reference/classExpressionTest1.js          |  2 +-
 .../reference/classExpressionTest2.js          |  2 +-
 tests/baselines/reference/classExpressions.js  |  2 +-
 .../baselines/reference/classExtendingClass.js |  2 +-
 ...dsInterfaceThatExtendsClassWithPrivates1.js |  2 +-
 .../reference/classImplementsClass2.js         |  2 +-
 .../reference/classImplementsClass3.js         |  2 +-
 .../reference/classImplementsClass4.js         |  2 +-
 .../reference/classImplementsClass5.js         |  2 +-
 .../reference/classImplementsClass6.js         |  2 +-
 .../classImplementsImportedInterface.js        |  2 +-
 tests/baselines/reference/classOrder1.js       |  2 +-
 tests/baselines/reference/classOrder2.js       |  2 +-
 .../reference/classPropertyAsPrivate.js        |  2 +-
 .../reference/classPropertyAsProtected.js      |  2 +-
 .../classPropertyIsPublicByDefault.js          |  2 +-
 .../reference/classSideInheritance1.js         |  2 +-
 .../reference/classSideInheritance2.js         |  2 +-
 .../reference/classWithDuplicateIdentifier.js  |  2 +-
 .../reference/classWithMultipleBaseClasses.js  |  2 +-
 ...thOnlyPublicMembersEquivalentToInterface.js |  2 +-
 ...hOnlyPublicMembersEquivalentToInterface2.js |  2 +-
 .../reference/classWithOptionalParameter.js    |  2 +-
 ...assWithOverloadImplementationOfWrongName.js |  2 +-
 ...ssWithOverloadImplementationOfWrongName2.js |  2 +-
 .../reference/classWithPrivateProperty.js      |  2 +-
 .../reference/classWithProtectedProperty.js    |  2 +-
 .../reference/classWithPublicProperty.js       |  2 +-
 tests/baselines/reference/classdecl.js         |  2 +-
 .../cloduleAcrossModuleDefinitions.js          |  2 +-
 .../reference/collisionArgumentsClassMethod.js |  2 +-
 ...collisionCodeGenModuleWithMethodChildren.js |  2 +-
 .../collisionRestParameterClassMethod.js       |  2 +-
 .../collisionSuperAndLocalFunctionInMethod.js  |  2 +-
 .../collisionSuperAndLocalVarInMethod.js       |  2 +-
 .../collisionSuperAndNameResolution.js         |  2 +-
 .../reference/collisionSuperAndParameter.js    |  2 +-
 .../reference/collisionSuperAndParameter1.js   |  2 +-
 ...llisionThisExpressionAndLocalVarInMethod.js |  2 +-
 ...ExpressionAndLocalVarWithSuperExperssion.js |  2 +-
 ...collisionThisExpressionAndNameResolution.js |  2 +-
 .../collisionThisExpressionAndParameter.js     |  2 +-
 .../reference/commentOnClassMethod1.js         |  2 +-
 .../baselines/reference/commentOnSignature1.js |  2 +-
 .../reference/commentsClassMembers.js          |  2 +-
 .../baselines/reference/commentsInheritance.js |  2 +-
 tests/baselines/reference/commentsOverloads.js |  2 +-
 .../reference/commentsTypeParameters.js        |  2 +-
 .../reference/commentsdoNotEmitComments.js     |  2 +-
 .../reference/commentsemitComments.js          |  2 +-
 .../comparisonOperatorWithIdenticalObjects.js  |  2 +-
 .../reference/complexClassRelationships.js     |  2 +-
 .../reference/complexNarrowingWithAny.js       |  2 +-
 .../baselines/reference/complicatedPrivacy.js  |  2 +-
 .../reference/compoundAssignmentLHSIsValue.js  |  2 +-
 ...mpoundExponentiationAssignmentLHSIsValue.js |  2 +-
 .../reference/computedPropertyNames10_ES5.js   |  2 +-
 .../reference/computedPropertyNames13_ES5.js   |  2 +-
 .../reference/computedPropertyNames14_ES5.js   |  2 +-
 .../reference/computedPropertyNames15_ES5.js   |  2 +-
 .../reference/computedPropertyNames21_ES5.js   |  2 +-
 .../reference/computedPropertyNames22_ES5.js   |  2 +-
 .../reference/computedPropertyNames23_ES5.js   |  2 +-
 .../reference/computedPropertyNames24_ES5.js   |  2 +-
 .../reference/computedPropertyNames25_ES5.js   |  2 +-
 .../reference/computedPropertyNames26_ES5.js   |  2 +-
 .../reference/computedPropertyNames27_ES5.js   |  2 +-
 .../reference/computedPropertyNames28_ES5.js   |  2 +-
 .../reference/computedPropertyNames29_ES5.js   |  2 +-
 .../reference/computedPropertyNames2_ES5.js    |  2 +-
 .../reference/computedPropertyNames30_ES5.js   |  2 +-
 .../reference/computedPropertyNames31_ES5.js   |  2 +-
 .../reference/computedPropertyNames32_ES5.js   |  2 +-
 .../reference/computedPropertyNames33_ES5.js   |  2 +-
 .../reference/computedPropertyNames34_ES5.js   |  2 +-
 .../reference/computedPropertyNames3_ES5.js    |  2 +-
 .../reference/computedPropertyNames40_ES5.js   |  2 +-
 ...computedPropertyNamesContextualType1_ES5.js |  2 +-
 ...computedPropertyNamesContextualType2_ES5.js |  2 +-
 ...computedPropertyNamesContextualType3_ES5.js |  2 +-
 ...omputedPropertyNamesDeclarationEmit1_ES5.js |  2 +-
 ...omputedPropertyNamesDeclarationEmit5_ES5.js |  2 +-
 .../computedPropertyNamesOnOverloads_ES5.js    |  2 +-
 .../computedPropertyNamesSourceMap1_ES5.js     |  2 +-
 ...edPropertyNamesSourceMap1_ES5.sourcemap.txt |  2 +-
 .../computedPropertyNamesSourceMap2_ES5.js     |  2 +-
 ...edPropertyNamesSourceMap2_ES5.sourcemap.txt |  2 +-
 .../reference/conflictMarkerDiff3Trivia2.js    |  2 +-
 .../reference/conflictMarkerTrivia2.js         |  2 +-
 .../reference/constantOverloadFunction.js      |  2 +-
 .../constantOverloadFunctionNoSubtypeError.js  |  2 +-
 ...onstraintCheckInGenericBaseTypeReference.js |  2 +-
 .../reference/constructorOverloads1.js         |  2 +-
 .../reference/constructorOverloads2.js         |  2 +-
 .../reference/constructorOverloads3.js         |  2 +-
 .../reference/constructorReturnsInvalidType.js |  2 +-
 .../constructorWithIncompleteTypeAnnotation.js |  2 +-
 .../contextualTypeAppliedToVarArgs.js          |  2 +-
 ...yTypedClassExpressionMethodDeclaration02.js |  2 +-
 .../controlFlowSuperPropertyAccess.js          |  2 +-
 .../reference/crashInresolveReturnStatement.js |  2 +-
 ...crashIntypeCheckObjectCreationExpression.js |  2 +-
 .../baselines/reference/crashRegressionTest.js |  2 +-
 .../declFileForClassWithMultipleBaseClasses.js |  2 +-
 ...ileForClassWithPrivateOverloadedFunction.js |  2 +-
 .../reference/declFileForTypeParameters.js     |  2 +-
 tests/baselines/reference/declFileMethods.js   |  4 ++--
 .../declFilePrivateMethodOverloads.js          |  2 +-
 tests/baselines/reference/declInput-2.js       |  2 +-
 tests/baselines/reference/declInput.js         |  2 +-
 tests/baselines/reference/declInput3.js        |  2 +-
 tests/baselines/reference/declInput4.js        |  2 +-
 .../declarationEmitClassMemberNameConflict.js  |  2 +-
 .../declarationEmitProtectedMembers.js         |  2 +-
 .../declarationEmitThisPredicates01.js         |  2 +-
 ...ationEmitThisPredicatesWithPrivateName01.js |  2 +-
 tests/baselines/reference/declarationFiles.js  |  2 +-
 .../baselines/reference/declarationMerging1.js |  2 +-
 .../baselines/reference/declarationMerging2.js |  2 +-
 .../reference/decoratorChecksFunctionBodies.js |  2 +-
 tests/baselines/reference/decoratorMetadata.js |  2 +-
 ...torMetadataRestParameterWithImportedType.js |  2 +-
 tests/baselines/reference/decoratorOnClass9.js |  2 +-
 .../reference/decoratorOnClassMethod1.js       |  2 +-
 .../reference/decoratorOnClassMethod10.js      |  2 +-
 .../reference/decoratorOnClassMethod11.js      |  2 +-
 .../reference/decoratorOnClassMethod12.js      |  2 +-
 .../reference/decoratorOnClassMethod2.js       |  2 +-
 .../reference/decoratorOnClassMethod3.js       |  2 +-
 .../reference/decoratorOnClassMethod8.js       |  2 +-
 .../decoratorOnClassMethodOverload1.js         |  2 +-
 .../decoratorOnClassMethodOverload2.js         |  2 +-
 .../decoratorOnClassMethodParameter1.js        |  2 +-
 .../reference/defaultArgsInOverloads.js        |  2 +-
 ...vedClassConstructorWithExplicitReturns01.js |  2 +-
 ...structorWithExplicitReturns01.sourcemap.txt |  2 +-
 ...dClassFunctionOverridesBaseClassAccessor.js |  2 +-
 .../derivedClassIncludesInheritedMembers.js    |  2 +-
 .../derivedClassOverridesPrivateFunction1.js   |  2 +-
 .../derivedClassOverridesProtectedMembers.js   |  2 +-
 .../derivedClassOverridesProtectedMembers2.js  |  2 +-
 .../derivedClassOverridesProtectedMembers3.js  |  2 +-
 .../derivedClassOverridesPublicMembers.js      |  2 +-
 ...edClassSuperCallsInNonConstructorMembers.js |  2 +-
 .../reference/derivedClassTransitivity.js      |  2 +-
 .../reference/derivedClassTransitivity2.js     |  2 +-
 .../reference/derivedClassTransitivity3.js     |  2 +-
 .../reference/derivedClassTransitivity4.js     |  2 +-
 .../baselines/reference/derivedClassWithAny.js |  2 +-
 ...rivateInstanceShadowingProtectedInstance.js |  2 +-
 ...thPrivateInstanceShadowingPublicInstance.js |  2 +-
 tests/baselines/reference/derivedClasses.js    |  2 +-
 .../reference/derivedGenericClassWithAny.js    |  2 +-
 ...ssesHiddenBaseCallViaSuperPropertyAccess.js |  2 +-
 ...vedTypeCallingBaseImplWithOptionalParams.js |  2 +-
 .../destructuringParameterDeclaration1ES5.js   |  2 +-
 ...ucturingParameterDeclaration1ES5iterable.js |  2 +-
 .../destructuringParameterDeclaration2.js      |  2 +-
 .../destructuringParameterProperties2.js       |  2 +-
 .../destructuringParameterProperties3.js       |  2 +-
 .../detachedCommentAtStartOfFunctionBody1.js   |  2 +-
 .../detachedCommentAtStartOfFunctionBody2.js   |  2 +-
 .../detachedCommentAtStartOfLambdaFunction1.js |  2 +-
 .../detachedCommentAtStartOfLambdaFunction2.js |  2 +-
 .../doNotEmitPinnedCommentOnNotEmittedNode.js  |  2 +-
 ...doNotEmitPinnedCommentOnNotEmittedNodets.js |  2 +-
 .../reference/dottedSymbolResolution1.js       |  2 +-
 .../baselines/reference/downlevelLetConst16.js |  2 +-
 .../reference/duplicateClassElements.js        |  2 +-
 .../reference/duplicateLocalVariable1.js       |  2 +-
 .../reference/duplicateLocalVariable2.js       |  2 +-
 .../reference/duplicatePropertyNames.js        |  2 +-
 .../reference/duplicateTypeParameters2.js      |  2 +-
 .../reference/duplicateVariablesByScope.js     |  2 +-
 .../emitArrowFunctionWhenUsingArguments12.js   |  2 +-
 .../emitCapturingThisInTupleDestructuring2.js  |  2 +-
 .../emitClassExpressionInDeclarationFile.js    |  2 +-
 .../emitClassExpressionInDeclarationFile2.js   |  2 +-
 .../reference/emitDecoratorMetadata_object.js  |  2 +-
 .../emitDecoratorMetadata_restArgs.js          |  2 +-
 .../reference/emitDefaultParametersMethod.js   |  2 +-
 .../reference/emitMemberAccessExpression.js    |  2 +-
 .../reference/emitRestParametersMethod.js      |  2 +-
 .../reference/emitThisInSuperMethodCall.js     |  2 +-
 ...emitter.asyncGenerators.classMethods.es5.js | 18 +++++++++---------
 .../errorRecoveryInClassDeclaration.js         |  2 +-
 tests/baselines/reference/errorSuperCalls.js   |  2 +-
 .../reference/errorSuperPropertyAccess.js      |  2 +-
 .../reference/errorsInGenericTypeReference.js  |  2 +-
 tests/baselines/reference/es3-amd.js           |  2 +-
 .../baselines/reference/es3-declaration-amd.js |  2 +-
 tests/baselines/reference/es3-sourcemap-amd.js |  2 +-
 .../reference/es3-sourcemap-amd.sourcemap.txt  |  2 +-
 tests/baselines/reference/es5-amd.js           |  2 +-
 tests/baselines/reference/es5-commonjs.js      |  2 +-
 tests/baselines/reference/es5-commonjs4.js     |  2 +-
 .../baselines/reference/es5-declaration-amd.js |  2 +-
 tests/baselines/reference/es5-souremap-amd.js  |  2 +-
 .../reference/es5-souremap-amd.sourcemap.txt   |  2 +-
 tests/baselines/reference/es5-system.js        |  2 +-
 tests/baselines/reference/es5-umd.js           |  2 +-
 tests/baselines/reference/es5-umd2.js          |  2 +-
 tests/baselines/reference/es5-umd3.js          |  2 +-
 tests/baselines/reference/es5-umd4.js          |  2 +-
 .../es5ExportDefaultClassDeclaration.js        |  2 +-
 .../es5ExportDefaultClassDeclaration2.js       |  2 +-
 .../es5ExportDefaultClassDeclaration3.js       |  2 +-
 .../baselines/reference/es5ExportEqualsDts.js  |  2 +-
 .../reference/es5ModuleWithModuleGenAmd.js     |  2 +-
 .../es5ModuleWithModuleGenCommonjs.js          |  2 +-
 .../es5ModuleWithoutModuleGenTarget.js         |  2 +-
 tests/baselines/reference/es5andes6module.js   |  2 +-
 tests/baselines/reference/es6ClassTest.js      |  2 +-
 tests/baselines/reference/es6ClassTest2.js     |  2 +-
 tests/baselines/reference/es6ClassTest3.js     |  2 +-
 tests/baselines/reference/es6DeclOrdering.js   |  2 +-
 tests/baselines/reference/es6MemberScoping.js  |  2 +-
 .../reference/es6modulekindWithES5Target.js    |  2 +-
 .../reference/es6modulekindWithES5Target11.js  |  2 +-
 .../reference/es6modulekindWithES5Target2.js   |  2 +-
 .../reference/es6modulekindWithES5Target3.js   |  2 +-
 .../baselines/reference/escapedIdentifiers.js  |  2 +-
 tests/baselines/reference/exportPrivateType.js |  2 +-
 .../reference/expressionTypeNodeShouldError.js |  6 +++---
 .../extendAndImplementTheSameBaseType.js       |  2 +-
 .../extendAndImplementTheSameBaseType2.js      |  2 +-
 .../reference/extendNonClassSymbol1.js         |  2 +-
 .../reference/extendsClauseAlreadySeen.js      |  2 +-
 .../reference/extendsClauseAlreadySeen2.js     |  2 +-
 .../reference/externalModuleQualification.js   |  2 +-
 tests/baselines/reference/fatArrowSelf.js      |  2 +-
 tests/baselines/reference/flowInFinally1.js    |  2 +-
 tests/baselines/reference/fluentClasses.js     |  2 +-
 tests/baselines/reference/for-inStatements.js  |  2 +-
 .../reference/for-inStatementsInvalid.js       |  2 +-
 .../reference/forwardRefInClassProperties.js   |  2 +-
 .../functionAndPropertyNameConflict.js         |  2 +-
 .../reference/functionArgShadowing.js          |  2 +-
 .../functionExpressionContextualTyping1.js     |  2 +-
 .../reference/functionOverloadErrors.js        |  2 +-
 .../baselines/reference/functionOverloads5.js  |  2 +-
 .../baselines/reference/functionOverloads7.js  |  2 +-
 .../reference/functionOverloadsOutOfOrder.js   |  2 +-
 .../reference/functionSubtypingOfVarArgs.js    |  2 +-
 .../reference/functionSubtypingOfVarArgs2.js   |  2 +-
 .../reference/functionWithSameNameAsField.js   |  2 +-
 .../reference/functionsInClassExpressions.js   |  2 +-
 tests/baselines/reference/fuzzy.js             |  2 +-
 .../genericArrayWithoutTypeAnnotation.js       |  2 +-
 .../genericAssignmentCompatWithInterfaces1.js  |  2 +-
 .../genericBaseClassLiteralProperty.js         |  2 +-
 .../genericBaseClassLiteralProperty2.js        |  2 +-
 .../genericCallTypeArgumentInference.js        |  2 +-
 ...CallWithConstraintsTypeArgumentInference.js |  2 +-
 .../reference/genericCallWithFixedArguments.js |  2 +-
 .../genericCallbacksAndClassHierarchy.js       |  2 +-
 ...icClassPropertyInheritanceSpecialization.js |  2 +-
 ...ricClassWithFunctionTypedMemberArguments.js |  2 +-
 ...ricClassWithObjectTypeArgsAndConstraints.js |  2 +-
 .../reference/genericClassWithStaticFactory.js |  2 +-
 tests/baselines/reference/genericClasses4.js   |  2 +-
 .../reference/genericClassesInModule2.js       |  2 +-
 .../reference/genericCloduleInModule.js        |  2 +-
 .../reference/genericCloduleInModule2.js       |  2 +-
 .../reference/genericCloneReturnTypes.js       |  2 +-
 .../reference/genericCloneReturnTypes2.js      |  2 +-
 .../baselines/reference/genericConstraint1.js  |  2 +-
 .../baselines/reference/genericConstraint2.js  |  2 +-
 .../genericFunctionsWithOptionalParameters3.js |  2 +-
 tests/baselines/reference/genericImplements.js |  2 +-
 tests/baselines/reference/genericInstanceOf.js |  2 +-
 .../genericInterfaceImplementation.js          |  2 +-
 .../reference/genericMemberFunction.js         |  2 +-
 .../reference/genericObjectLitReturnType.js    |  2 +-
 .../reference/genericOfACloduleType1.js        |  2 +-
 .../reference/genericOfACloduleType2.js        |  2 +-
 .../reference/genericPrototypeProperty.js      |  2 +-
 ...nericRecursiveImplicitConstructorErrors2.js |  2 +-
 ...nericRecursiveImplicitConstructorErrors3.js |  2 +-
 .../genericReversingTypeParameters.js          |  2 +-
 .../genericReversingTypeParameters2.js         |  2 +-
 .../reference/genericSpecializations1.js       |  2 +-
 .../reference/genericSpecializations2.js       |  2 +-
 .../reference/genericSpecializations3.js       |  2 +-
 .../reference/genericTypeAssertions1.js        |  2 +-
 .../reference/genericTypeAssertions2.js        |  2 +-
 .../reference/genericTypeAssertions4.js        |  2 +-
 .../reference/genericTypeAssertions6.js        |  2 +-
 .../reference/genericTypeConstraints.js        |  2 +-
 .../genericTypeReferencesRequireTypeArgs.js    |  2 +-
 .../genericTypeWithCallableMembers.js          |  2 +-
 .../genericTypeWithNonGenericBaseMisMatch.js   |  2 +-
 .../reference/genericWithCallSignatures1.js    |  2 +-
 .../genericWithIndexerOfTypeParameterType1.js  |  2 +-
 .../genericWithIndexerOfTypeParameterType2.js  |  2 +-
 .../genericWithOpenTypeParameters1.js          |  2 +-
 .../genericsWithDuplicateTypeParameters1.js    |  2 +-
 .../genericsWithoutTypeParameters1.js          |  2 +-
 .../reference/getAndSetAsMemberNames.js        |  2 +-
 .../reference/getterControlFlowStrictNull.js   |  2 +-
 .../getterThatThrowsShouldNotNeedReturn.js     |  2 +-
 tests/baselines/reference/giant.js             |  2 +-
 .../baselines/reference/grammarAmbiguities1.js |  2 +-
 .../heterogeneousArrayAndOverloads.js          |  2 +-
 .../implementGenericWithMismatchedTypes.js     |  2 +-
 .../implementInterfaceAnyMemberWithVoid.js     |  2 +-
 .../reference/implementsClauseAlreadySeen.js   |  2 +-
 .../reference/implementsInClassExpression.js   |  2 +-
 .../implicitAnyAnyReturningFunction.js         |  2 +-
 .../reference/implicitAnyCastedValue.js        |  2 +-
 .../implicitAnyDeclareMemberWithoutType2.js    |  2 +-
 ...implicitAnyFunctionReturnNullOrUndefined.js |  2 +-
 .../baselines/reference/implicitAnyInCatch.js  |  2 +-
 .../importAndVariableDeclarationConflict2.js   |  2 +-
 tests/baselines/reference/importAsBaseClass.js |  2 +-
 .../importCallExpressionAsyncES3AMD.js         |  2 +-
 .../importCallExpressionAsyncES3CJS.js         |  2 +-
 .../importCallExpressionAsyncES3System.js      |  2 +-
 .../importCallExpressionAsyncES3UMD.js         |  2 +-
 .../importCallExpressionAsyncES5AMD.js         |  2 +-
 .../importCallExpressionAsyncES5CJS.js         |  2 +-
 .../importCallExpressionAsyncES5System.js      |  2 +-
 .../importCallExpressionAsyncES5UMD.js         |  2 +-
 .../reference/importCallExpressionES5AMD.js    |  2 +-
 .../reference/importCallExpressionES5CJS.js    |  2 +-
 .../reference/importCallExpressionES5System.js |  2 +-
 .../reference/importCallExpressionES5UMD.js    |  2 +-
 ...mportCallExpressionNoModuleKindSpecified.js |  4 ++--
 tests/baselines/reference/importHelpers.js     |  2 +-
 .../reference/importHelpersNoHelpers.js        |  2 +-
 .../reference/importHelpersNoModule.js         |  2 +-
 .../import_reference-exported-alias.js         |  2 +-
 .../import_reference-to-type-alias.js          |  2 +-
 .../importedAliasesInTypePositions.js          |  2 +-
 .../reference/inOperatorWithGeneric.js         |  2 +-
 ...patibleAssignmentOfIdenticallyNamedTypes.js |  2 +-
 tests/baselines/reference/incompatibleTypes.js |  2 +-
 .../reference/incrementOnTypeParameter.js      |  2 +-
 tests/baselines/reference/indexTypeCheck.js    |  2 +-
 .../reference/indexedAccessRelation.js         |  2 +-
 .../reference/indexedAccessTypeConstraints.js  |  2 +-
 .../indexerReturningTypeParameter1.js          |  2 +-
 .../baselines/reference/indexersInClassType.js |  2 +-
 .../inferFromGenericFunctionReturnTypes1.js    |  2 +-
 .../inferFromGenericFunctionReturnTypes2.js    |  2 +-
 .../inferParameterWithMethodCallInitializer.js |  2 +-
 .../inferentialTypingUsingApparentType3.js     |  2 +-
 .../inferringClassMembersFromAssignments.js    |  2 +-
 tests/baselines/reference/inheritance.js       |  2 +-
 tests/baselines/reference/inheritance1.js      |  2 +-
 ...ritanceGrandParentPrivateMemberCollision.js |  2 +-
 ...ntPrivateMemberCollisionWithPublicMember.js |  2 +-
 ...ntPublicMemberCollisionWithPrivateMember.js |  2 +-
 ...nheritanceMemberAccessorOverridingMethod.js |  2 +-
 .../inheritanceMemberFuncOverridingAccessor.js |  2 +-
 .../inheritanceMemberFuncOverridingMethod.js   |  2 +-
 .../inheritanceMemberFuncOverridingProperty.js |  2 +-
 ...nheritanceMemberPropertyOverridingMethod.js |  2 +-
 tests/baselines/reference/innerAliases2.js     |  2 +-
 .../innerTypeParameterShadowingOuterOne2.js    |  2 +-
 .../instanceAndStaticDeclarations1.js          |  2 +-
 .../instanceMemberAssignsToClassPrototype.js   |  2 +-
 ...instancePropertiesInheritedIntoClassType.js |  2 +-
 .../reference/instancePropertyInClassType.js   |  2 +-
 .../instanceofOperatorWithInvalidOperands.js   |  2 +-
 .../instantiatedBaseTypeConstraints.js         |  2 +-
 .../instantiatedReturnTypeContravariance.js    |  2 +-
 tests/baselines/reference/intTypeCheck.js      |  2 +-
 .../reference/interfaceClassMerging.js         |  2 +-
 .../reference/interfaceClassMerging2.js        |  2 +-
 .../reference/interfaceContextualType.js       |  2 +-
 .../reference/interfaceExtendingClass.js       |  2 +-
 .../reference/interfaceExtendingClass2.js      |  2 +-
 .../reference/interfaceExtendsClass1.js        |  2 +-
 .../interfaceExtendsClassWithPrivate1.js       |  2 +-
 .../interfaceExtendsClassWithPrivate2.js       |  2 +-
 .../reference/interfaceImplementation1.js      |  2 +-
 .../reference/interfaceImplementation3.js      |  2 +-
 .../reference/interfaceImplementation4.js      |  2 +-
 .../reference/interfaceImplementation7.js      |  2 +-
 .../baselines/reference/interfaceSubtyping.js  |  2 +-
 ...faceWithPropertyThatIsPrivateInBaseType2.js |  2 +-
 ...nalAliasClassInsideLocalModuleWithExport.js |  2 +-
 ...AliasClassInsideLocalModuleWithoutExport.js |  2 +-
 ...nsideLocalModuleWithoutExportAccessError.js |  2 +-
 ...AliasClassInsideTopLevelModuleWithExport.js |  2 +-
 ...asClassInsideTopLevelModuleWithoutExport.js |  2 +-
 .../reference/invalidNewTarget.es5.js          |  2 +-
 .../reference/invalidReturnStatements.js       |  2 +-
 .../baselines/reference/invalidStaticField.js  |  2 +-
 ...invalidThisEmitInContextualObjectLiteral.js |  2 +-
 ...lationClassMethodContainingArrowFunction.js |  2 +-
 .../jsxFactoryQualifiedNameWithEs5.js          |  2 +-
 .../baselines/reference/jsxInExtendsClause.js  |  2 +-
 tests/baselines/reference/jsxViaImport.2.js    |  2 +-
 tests/baselines/reference/jsxViaImport.js      |  2 +-
 .../reference/keyofAndIndexedAccess.js         |  2 +-
 tests/baselines/reference/lambdaArgCrash.js    |  2 +-
 tests/baselines/reference/lambdaPropSelf.js    |  2 +-
 tests/baselines/reference/lift.js              |  2 +-
 tests/baselines/reference/listFailure.js       |  2 +-
 tests/baselines/reference/literalTypes2.js     |  2 +-
 tests/baselines/reference/localTypes1.js       |  2 +-
 tests/baselines/reference/localTypes5.js       |  2 +-
 .../reference/looseThisTypeInFunctions.js      |  2 +-
 tests/baselines/reference/mappedTypeErrors.js  |  2 +-
 .../reference/mappedTypePartialConstraints.js  |  2 +-
 .../reference/matchReturnTypeInAllBranches.js  |  2 +-
 .../memberFunctionsWithPrivateOverloads.js     |  2 +-
 .../memberFunctionsWithPublicOverloads.js      |  2 +-
 ...emberFunctionsWithPublicPrivateOverloads.js |  2 +-
 .../baselines/reference/mergedDeclarations5.js |  4 ++--
 .../baselines/reference/mergedDeclarations6.js |  4 ++--
 .../reference/mergedInheritedClassInterface.js |  2 +-
 .../reference/methodContainingLocalFunction.js |  2 +-
 .../methodSignatureDeclarationEmit1.js         |  2 +-
 .../reference/mismatchedGenericArguments1.js   |  2 +-
 .../reference/missingDecoratorType.js          |  2 +-
 .../missingPropertiesOfClassExpression.js      |  2 +-
 .../reference/missingReturnStatement.js        |  2 +-
 .../reference/missingReturnStatement1.js       |  2 +-
 tests/baselines/reference/missingSelf.js       |  2 +-
 .../mixedStaticAndInstanceClassMembers.js      |  2 +-
 .../reference/mixinAccessModifiers.js          |  2 +-
 .../reference/mixinClassesAnnotated.js         |  2 +-
 .../reference/mixinClassesAnonymous.js         |  2 +-
 .../baselines/reference/mixinClassesMembers.js |  2 +-
 .../reference/mixinPrivateAndProtected.js      |  2 +-
 .../mixingStaticAndInstanceOverloads.js        |  2 +-
 ...difierOnClassDeclarationMemberInFunction.js |  2 +-
 ...odifierOnClassExpressionMemberInFunction.js |  2 +-
 .../reference/moduleAliasInterface.js          |  2 +-
 .../baselines/reference/moduleCodeGenTest5.js  |  2 +-
 .../moduleMemberWithoutTypeAnnotation1.js      |  2 +-
 tests/baselines/reference/moduleMerge.js       |  2 +-
 .../baselines/reference/moduleNewExportBug.js  |  2 +-
 .../reference/moduleReopenedTypeOtherBlock.js  |  2 +-
 .../reference/moduleReopenedTypeSameBlock.js   |  2 +-
 .../reference/moduleVisibilityTest1.js         |  2 +-
 .../reference/moduleVisibilityTest2.js         |  2 +-
 tests/baselines/reference/moduledecl.js        |  2 +-
 tests/baselines/reference/multiImportExport.js |  2 +-
 .../baselines/reference/multiModuleClodule1.js |  2 +-
 .../reference/multipleDeclarations.js          |  2 +-
 .../baselines/reference/multipleInheritance.js |  2 +-
 .../mutuallyRecursiveGenericBaseTypes2.js      |  2 +-
 .../reference/narrowTypeByInstanceof.js        |  2 +-
 .../reference/narrowedConstInMethod.js         |  2 +-
 tests/baselines/reference/nestedLoops.js       |  2 +-
 tests/baselines/reference/nestedSelf.js        |  2 +-
 tests/baselines/reference/neverType.js         |  2 +-
 tests/baselines/reference/newArrays.js         |  2 +-
 ...llisionThisExpressionAndLocalVarInMethod.js |  2 +-
 ...oImplicitAnyDestructuringInPrivateMethod.js |  2 +-
 .../noImplicitAnyForMethodParameters.js        |  2 +-
 .../noImplicitAnyParametersInClass.js          |  2 +-
 .../reference/noTypeArgumentOnReturnType1.js   |  2 +-
 .../reference/noUnusedLocals_selfReference.js  | 17 +++++++++++++++++
 .../nonMergedDeclarationsAndOverloads.js       |  2 +-
 ...ricIndexerConstrainsPropertyDeclarations.js |  2 +-
 ...icIndexerConstrainsPropertyDeclarations2.js |  2 +-
 .../reference/numericIndexerConstraint1.js     |  2 +-
 .../reference/numericIndexerConstraint2.js     |  2 +-
 .../objectCreationOfElementAccessExpression.js |  2 +-
 .../reference/objectRestParameterES5.js        |  2 +-
 tests/baselines/reference/objectSpread.js      |  2 +-
 .../reference/objectSpreadNegative.js          |  2 +-
 .../objectTypeHidingMembersOfExtendedObject.js |  2 +-
 .../objectTypeHidingMembersOfObject.js         |  2 +-
 ...ypeHidingMembersOfObjectAssignmentCompat.js |  2 +-
 ...peHidingMembersOfObjectAssignmentCompat2.js |  2 +-
 .../objectTypesIdentityWithCallSignatures.js   |  2 +-
 .../objectTypesIdentityWithCallSignatures2.js  |  2 +-
 ...tyWithCallSignaturesDifferingParamCounts.js |  2 +-
 ...sIdentityWithCallSignaturesWithOverloads.js |  2 +-
 ...ctTypesIdentityWithGenericCallSignatures.js |  2 +-
 ...tTypesIdentityWithGenericCallSignatures2.js |  2 +-
 ...ericCallSignaturesDifferingByConstraints.js |  2 +-
 ...ricCallSignaturesDifferingByConstraints2.js |  2 +-
 ...ricCallSignaturesDifferingByConstraints3.js |  2 +-
 ...nericCallSignaturesDifferingByReturnType.js |  2 +-
 ...ericCallSignaturesDifferingByReturnType2.js |  2 +-
 ...llSignaturesDifferingTypeParameterCounts.js |  2 +-
 ...allSignaturesDifferingTypeParameterNames.js |  2 +-
 ...yWithGenericCallSignaturesOptionalParams.js |  2 +-
 ...WithGenericCallSignaturesOptionalParams2.js |  2 +-
 ...WithGenericCallSignaturesOptionalParams3.js |  2 +-
 .../objectTypesWithOptionalProperties2.js      |  2 +-
 .../reference/optionalArgsWithDefaultValues.js |  2 +-
 .../reference/optionalConstructorArgInSuper.js |  2 +-
 tests/baselines/reference/optionalMethods.js   |  2 +-
 .../reference/optionalParamArgsTest.js         |  2 +-
 .../reference/optionalParamInOverride.js       |  2 +-
 tests/baselines/reference/out-flag.js          |  2 +-
 .../baselines/reference/out-flag.sourcemap.txt |  2 +-
 .../reference/overloadConsecutiveness.js       |  2 +-
 .../reference/overloadModifiersMustAgree.js    |  2 +-
 .../overloadOnConstConstraintChecks1.js        |  2 +-
 .../overloadOnConstConstraintChecks2.js        |  2 +-
 .../overloadOnConstConstraintChecks3.js        |  2 +-
 .../overloadOnConstConstraintChecks4.js        |  2 +-
 ...onstInBaseWithBadImplementationInDerived.js |  2 +-
 .../reference/overloadOnConstInCallback1.js    |  2 +-
 .../reference/overloadOnConstInheritance4.js   |  2 +-
 .../overloadOnConstNoAnyImplementation2.js     |  2 +-
 ...overloadOnConstNoNonSpecializedSignature.js |  2 +-
 .../overloadOnConstNoStringImplementation2.js  |  2 +-
 .../overloadOnConstantsInvalidOverload1.js     |  2 +-
 .../overloadResolutionOnDefaultConstructor1.js |  2 +-
 .../reference/overloadingOnConstants1.js       |  2 +-
 .../reference/overloadsWithinClasses.js        |  2 +-
 .../overrideBaseIntersectionMethod.js          |  2 +-
 .../parameterInitializersForwardReferencing.js |  2 +-
 .../parameterNamesInTypeParameterList.js       |  2 +-
 .../parameterPropertyOutsideConstructor.js     |  2 +-
 .../parametersWithNoAnnotationAreAny.js        |  2 +-
 tests/baselines/reference/parser509667.js      |  2 +-
 tests/baselines/reference/parser553699.js      |  2 +-
 tests/baselines/reference/parser618973.js      |  2 +-
 tests/baselines/reference/parserAstSpans1.js   |  2 +-
 tests/baselines/reference/parserClass1.js      |  2 +-
 .../reference/parserClassDeclaration11.js      |  2 +-
 .../reference/parserClassDeclaration13.js      |  2 +-
 .../reference/parserClassDeclaration16.js      |  2 +-
 .../reference/parserClassDeclaration19.js      |  2 +-
 .../reference/parserClassDeclaration20.js      |  2 +-
 .../reference/parserClassDeclaration21.js      |  2 +-
 .../reference/parserClassDeclaration22.js      |  2 +-
 .../parserES5ComputedPropertyName3.js          |  2 +-
 .../reference/parserES5SymbolProperty7.js      |  2 +-
 .../reference/parserErrantSemicolonInClass1.js |  2 +-
 .../parserErrorRecoveryIfStatement1.js         |  2 +-
 .../parserErrorRecoveryIfStatement2.js         |  2 +-
 .../parserErrorRecoveryIfStatement3.js         |  2 +-
 .../parserErrorRecoveryIfStatement4.js         |  2 +-
 .../parserErrorRecoveryIfStatement5.js         |  2 +-
 .../parserErrorRecoveryIfStatement6.js         |  2 +-
 .../reference/parserErrorRecovery_Block3.js    |  2 +-
 ...rErrorRecovery_IncompleteMemberVariable1.js |  2 +-
 ...rErrorRecovery_IncompleteMemberVariable2.js |  2 +-
 .../parserMemberFunctionDeclaration1.js        |  2 +-
 .../parserMemberFunctionDeclaration4.js        |  2 +-
 .../parserMemberFunctionDeclaration5.js        |  2 +-
 ...serMemberFunctionDeclarationAmbiguities1.js |  2 +-
 .../reference/parserMissingLambdaOpenBrace1.js |  2 +-
 .../reference/parserParameterList1.js          |  2 +-
 .../reference/parserParameterList10.js         |  2 +-
 .../reference/parserParameterList16.js         |  2 +-
 .../reference/parserParameterList2.js          |  2 +-
 .../reference/parserParameterList3.js          |  2 +-
 .../reference/parserParameterList9.js          |  2 +-
 tests/baselines/reference/parserRealSource1.js |  2 +-
 .../baselines/reference/parserRealSource10.js  |  2 +-
 .../baselines/reference/parserRealSource11.js  |  2 +-
 .../baselines/reference/parserRealSource12.js  |  2 +-
 .../baselines/reference/parserRealSource14.js  |  2 +-
 tests/baselines/reference/parserRealSource4.js |  2 +-
 tests/baselines/reference/parserRealSource5.js |  2 +-
 tests/baselines/reference/parserRealSource6.js |  2 +-
 tests/baselines/reference/parserRealSource8.js |  2 +-
 tests/baselines/reference/parserRealSource9.js |  2 +-
 .../reference/parserSuperExpression1.js        |  2 +-
 .../reference/parserSuperExpression2.js        |  2 +-
 .../reference/parserSuperExpression3.js        |  2 +-
 .../reference/parserSuperExpression4.js        |  2 +-
 tests/baselines/reference/parserharness.js     |  2 +-
 tests/baselines/reference/parserindenter.js    |  2 +-
 ...ssRecoversWhenHittingUnexpectedSemicolon.js |  2 +-
 .../reference/primitiveConstraints2.js         |  2 +-
 tests/baselines/reference/primitiveMembers.js  |  2 +-
 tests/baselines/reference/privacyClass.js      |  2 +-
 .../privacyClassExtendsClauseDeclFile.js       |  4 ++--
 tests/baselines/reference/privacyFunc.js       |  2 +-
 ...yFunctionCannotNameParameterTypeDeclFile.js |  2 +-
 ...vacyFunctionCannotNameReturnTypeDeclFile.js |  2 +-
 .../privacyFunctionParameterDeclFile.js        |  4 ++--
 .../privacyFunctionReturnTypeDeclFile.js       |  4 ++--
 tests/baselines/reference/privacyGetter.js     |  2 +-
 tests/baselines/reference/privacyGloClass.js   |  2 +-
 tests/baselines/reference/privacyGloFunc.js    |  2 +-
 tests/baselines/reference/privacyGloGetter.js  |  2 +-
 .../baselines/reference/privacyGloInterface.js |  2 +-
 tests/baselines/reference/privacyGloVar.js     |  2 +-
 tests/baselines/reference/privacyInterface.js  |  2 +-
 .../privacyTypeParameterOfFunction.js          |  2 +-
 .../privacyTypeParameterOfFunctionDeclFile.js  |  2 +-
 .../reference/privacyTypeParametersOfClass.js  |  2 +-
 .../privacyTypeParametersOfClassDeclFile.js    |  2 +-
 tests/baselines/reference/privacyVar.js        |  2 +-
 .../reference/privateAccessInSubclass1.js      |  2 +-
 ...rivateClassPropertyAccessibleWithinClass.js |  2 +-
 ...ClassPropertyAccessibleWithinNestedClass.js |  2 +-
 .../privateInstanceMemberAccessibility.js      |  2 +-
 .../reference/privateInstanceVisibility.js     |  2 +-
 ...ctedMembersAreNotAccessibleDestructuring.js |  2 +-
 tests/baselines/reference/privateVisibility.js |  2 +-
 tests/baselines/reference/privateVisibles.js   |  2 +-
 .../amd/li'b/class'A.js                        |  2 +-
 .../node/li'b/class'A.js                       |  2 +-
 .../amd/fs.js                                  |  2 +-
 .../node/fs.js                                 |  2 +-
 tests/baselines/reference/promiseChaining.js   |  2 +-
 tests/baselines/reference/promiseChaining1.js  |  2 +-
 tests/baselines/reference/promiseChaining2.js  |  2 +-
 ...ertyAccessOnTypeParameterWithConstraints.js |  2 +-
 ...rtyAccessOnTypeParameterWithConstraints2.js |  2 +-
 ...rtyAccessOnTypeParameterWithConstraints3.js |  2 +-
 ...rtyAccessOnTypeParameterWithConstraints4.js |  2 +-
 ...rtyAccessOnTypeParameterWithConstraints5.js |  2 +-
 ...yAccessOnTypeParameterWithoutConstraints.js |  2 +-
 .../propertyAndFunctionWithSameName.js         |  2 +-
 tests/baselines/reference/propertyOrdering.js  |  2 +-
 tests/baselines/reference/propertyOrdering2.js |  2 +-
 ...tectedClassPropertyAccessibleWithinClass.js |  2 +-
 ...ClassPropertyAccessibleWithinNestedClass.js |  2 +-
 ...ssPropertyAccessibleWithinNestedSubclass.js |  2 +-
 ...sPropertyAccessibleWithinNestedSubclass1.js |  2 +-
 ...tedClassPropertyAccessibleWithinSubclass.js |  2 +-
 ...edClassPropertyAccessibleWithinSubclass2.js |  2 +-
 ...edClassPropertyAccessibleWithinSubclass3.js |  2 +-
 .../protectedInstanceMemberAccessibility.js    |  2 +-
 tests/baselines/reference/protectedMembers.js  |  2 +-
 .../baselines/reference/quotedFunctionName1.js |  2 +-
 .../baselines/reference/quotedPropertyName3.js |  2 +-
 .../readonlyInNonPropertyParameters.js         |  2 +-
 tests/baselines/reference/readonlyMembers.js   |  2 +-
 .../recursiveBaseConstructorCreation1.js       |  2 +-
 .../reference/recursiveClassReferenceTest.js   |  2 +-
 .../recursiveClassReferenceTest.sourcemap.txt  |  2 +-
 .../reference/recursiveComplicatedClasses.js   |  2 +-
 .../reference/recursiveInheritance3.js         |  2 +-
 .../reference/requireEmitSemicolon.js          |  2 +-
 .../reference/requiredInitializedParameter2.js |  2 +-
 .../reference/requiredInitializedParameter3.js |  2 +-
 .../reference/requiredInitializedParameter4.js |  2 +-
 ...ClassDeclarationWhenInBaseTypeResolution.js |  2 +-
 .../restParameterAssignmentCompatibility.js    |  2 +-
 ...restParameterWithoutAnnotationIsAnyArray.js |  2 +-
 .../reference/restParametersOfNonArrayTypes.js |  2 +-
 .../restParametersOfNonArrayTypes2.js          |  2 +-
 .../restParametersWithArrayTypeAnnotations.js  |  2 +-
 .../reference/returnInConstructor1.js          |  2 +-
 tests/baselines/reference/returnStatements.js  |  2 +-
 .../reference/returnTypeTypeArguments.js       |  2 +-
 ...opeCheckExtendedClassInsidePublicMethod2.js |  2 +-
 .../reference/scopeCheckInsidePublicMethod1.js |  2 +-
 .../reference/scopeResolutionIdentifiers.js    |  2 +-
 tests/baselines/reference/selfInCallback.js    |  2 +-
 tests/baselines/reference/selfInLambdas.js     |  2 +-
 .../selfReferencesInFunctionParameters.js      |  2 +-
 .../reference/shadowPrivateMembers.js          |  2 +-
 .../sigantureIsSubTypeIfTheyAreIdentical.js    |  2 +-
 ...ureInstantiationWithRecursiveConstraints.js |  2 +-
 .../baselines/reference/sourceMap-Comments.js  |  2 +-
 .../reference/sourceMap-Comments.sourcemap.txt |  2 +-
 .../reference/sourceMap-FileWithComments.js    |  2 +-
 .../sourceMap-FileWithComments.sourcemap.txt   |  2 +-
 tests/baselines/reference/sourceMapSample.js   |  2 +-
 .../reference/sourceMapSample.sourcemap.txt    |  2 +-
 .../reference/sourceMapValidationClass.js      |  2 +-
 .../sourceMapValidationClass.sourcemap.txt     |  2 +-
 .../reference/sourceMapValidationClasses.js    |  2 +-
 .../sourceMapValidationClasses.sourcemap.txt   |  2 +-
 .../reference/sourceMapValidationDecorators.js |  2 +-
 ...sourceMapValidationDecorators.sourcemap.txt |  2 +-
 .../specializedOverloadWithRestParameters.js   |  2 +-
 ...ureIsNotSubtypeOfNonSpecializedSignature.js |  2 +-
 ...natureIsSubtypeOfNonSpecializedSignature.js |  2 +-
 tests/baselines/reference/spreadMethods.js     |  2 +-
 .../reference/staticAndMemberFunctions.js      |  2 +-
 .../staticAndNonStaticPropertiesSameName.js    |  2 +-
 .../reference/staticClassMemberError.js        |  2 +-
 tests/baselines/reference/staticClassProps.js  |  2 +-
 tests/baselines/reference/staticFactory1.js    |  2 +-
 .../reference/staticInstanceResolution.js      |  2 +-
 .../reference/staticInstanceResolution4.js     |  2 +-
 .../reference/staticMemberExportAccess.js      |  2 +-
 ...sAndPublicMemberOfAnotherClassAssignment.js |  2 +-
 ...odWithTypeParameterExtendsClauseDeclFile.js |  2 +-
 .../reference/staticOffOfInstance1.js          |  2 +-
 .../reference/staticOffOfInstance2.js          |  2 +-
 .../staticPropertyAndFunctionWithSameName.js   |  2 +-
 .../reference/staticPropertyNameConflicts.js   |  2 +-
 .../reference/staticPropertyNotInClassType.js  |  2 +-
 ...strictModeReservedWordInClassDeclaration.js |  2 +-
 .../strictModeUseContextualKeyword.js          |  2 +-
 ...ingIndexerConstrainsPropertyDeclarations.js |  2 +-
 ...ngIndexerConstrainsPropertyDeclarations2.js |  2 +-
 .../stringLiteralTypeIsSubtypeOfString.js      |  2 +-
 ...ngLiteralTypesInImplementationSignatures.js |  2 +-
 ...gLiteralTypesInImplementationSignatures2.js |  2 +-
 tests/baselines/reference/stripInternal1.js    |  2 +-
 tests/baselines/reference/super.js             |  2 +-
 tests/baselines/reference/super1.js            |  2 +-
 tests/baselines/reference/super2.js            |  2 +-
 tests/baselines/reference/superAccess.js       |  2 +-
 tests/baselines/reference/superAccess2.js      |  2 +-
 .../reference/superAccessInFatArrow1.js        |  2 +-
 .../reference/superCallInNonStaticMethod.js    |  2 +-
 .../superCallInsideObjectLiteralExpression.js  |  2 +-
 .../reference/superCallOutsideConstructor.js   |  2 +-
 .../superCallParameterContextualTyping3.js     |  2 +-
 .../reference/superCallWithMissingBaseClass.js |  2 +-
 .../reference/superCallsInConstructor.js       |  2 +-
 tests/baselines/reference/superErrors.js       |  2 +-
 .../superHasMethodsFromMergedInterface.js      |  2 +-
 .../baselines/reference/superInCatchBlock1.js  |  2 +-
 .../reference/superInConstructorParam1.js      |  2 +-
 tests/baselines/reference/superInLambdas.js    |  2 +-
 .../reference/superInObjectLiterals_ES5.js     |  2 +-
 .../baselines/reference/superPropertyAccess.js |  2 +-
 .../reference/superPropertyAccess1.js          |  2 +-
 ...cessInComputedPropertiesOfNestedType_ES5.js |  2 +-
 .../superPropertyAccessInSuperCall01.js        |  2 +-
 .../reference/superPropertyAccessNoError.js    |  2 +-
 .../reference/superPropertyAccess_ES5.js       |  2 +-
 ...uperPropertyInConstructorBeforeSuperCall.js |  2 +-
 .../reference/superSymbolIndexedAccess5.js     |  2 +-
 .../reference/superWithTypeArgument3.js        |  2 +-
 ...nside-object-literal-getters-and-setters.js |  2 +-
 tests/baselines/reference/thisBinding.js       |  2 +-
 tests/baselines/reference/thisCapture1.js      |  2 +-
 ...ressionInCallExpressionWithTypeArguments.js |  2 +-
 .../reference/thisInConstructorParameter2.js   |  2 +-
 .../reference/thisInInnerFunctions.js          |  2 +-
 tests/baselines/reference/thisInLambda.js      |  2 +-
 .../reference/thisInObjectLiterals.js          |  2 +-
 .../reference/thisInOuterClassBody.js          |  2 +-
 .../thisInPropertyBoundDeclarations.js         |  2 +-
 .../reference/thisTypeAndConstraints.js        |  2 +-
 .../reference/thisTypeAsConstraint.js          |  2 +-
 tests/baselines/reference/thisTypeErrors.js    |  2 +-
 tests/baselines/reference/thisTypeInClasses.js |  2 +-
 .../baselines/reference/thisTypeInFunctions.js |  2 +-
 .../reference/thisTypeInFunctionsNegative.js   |  2 +-
 .../reference/thisWhenTypeCheckFails.js        |  2 +-
 .../reference/throwInEnclosingStatements.js    |  2 +-
 tests/baselines/reference/topLevel.js          |  2 +-
 ...trailingCommaInHeterogenousArrayLiteral1.js |  2 +-
 .../reference/tsxAttributeResolution10.js      |  2 +-
 .../reference/tsxAttributeResolution11.js      |  2 +-
 .../reference/tsxAttributeResolution15.js      |  2 +-
 .../reference/tsxAttributeResolution16.js      |  2 +-
 .../reference/tsxAttributeResolution9.js       |  2 +-
 .../tsxCorrectlyParseLessThanComparison1.js    |  2 +-
 .../tsxDefaultAttributesResolution1.js         |  2 +-
 .../tsxDefaultAttributesResolution2.js         |  2 +-
 .../tsxDefaultAttributesResolution3.js         |  2 +-
 .../baselines/reference/tsxDynamicTagName5.js  |  2 +-
 .../baselines/reference/tsxDynamicTagName7.js  |  2 +-
 .../baselines/reference/tsxDynamicTagName8.js  |  2 +-
 .../baselines/reference/tsxDynamicTagName9.js  |  2 +-
 tests/baselines/reference/tsxEmit1.js          |  2 +-
 .../reference/tsxExternalModuleEmit1.js        |  4 ++--
 .../reference/tsxGenericAttributesType3.js     |  2 +-
 .../reference/tsxGenericAttributesType4.js     |  2 +-
 .../reference/tsxGenericAttributesType5.js     |  2 +-
 .../reference/tsxGenericAttributesType6.js     |  2 +-
 .../reference/tsxGenericAttributesType9.js     |  2 +-
 tests/baselines/reference/tsxReactEmit1.js     |  2 +-
 .../tsxSpreadAttributesResolution1.js          |  2 +-
 .../tsxSpreadAttributesResolution10.js         |  2 +-
 .../tsxSpreadAttributesResolution11.js         |  2 +-
 .../tsxSpreadAttributesResolution12.js         |  2 +-
 .../tsxSpreadAttributesResolution2.js          |  2 +-
 .../tsxSpreadAttributesResolution3.js          |  2 +-
 .../tsxSpreadAttributesResolution4.js          |  2 +-
 .../tsxSpreadAttributesResolution5.js          |  2 +-
 .../tsxSpreadAttributesResolution6.js          |  2 +-
 .../tsxSpreadAttributesResolution7.js          |  2 +-
 .../tsxSpreadAttributesResolution8.js          |  2 +-
 .../tsxSpreadAttributesResolution9.js          |  2 +-
 .../tsxStatelessFunctionComponents2.js         |  2 +-
 .../reference/tsxUnionElementType3.js          |  2 +-
 .../reference/tsxUnionElementType4.js          |  2 +-
 .../reference/tsxUnionTypeComponent1.js        |  2 +-
 .../reference/typeCheckTypeArgument.js         |  2 +-
 .../typeConstraintsWithConstructSignatures.js  |  2 +-
 tests/baselines/reference/typeGuardFunction.js |  2 +-
 .../reference/typeGuardFunctionOfFormThis.js   |  2 +-
 .../typeGuardFunctionOfFormThisErrors.js       |  2 +-
 .../reference/typeGuardsInClassMethods.js      |  2 +-
 .../reference/typeGuardsInProperties.js        |  2 +-
 .../reference/typeGuardsOnClassProperty.js     |  2 +-
 .../reference/typeInferenceLiteralUnion.js     |  2 +-
 .../typeInferenceReturnTypeCallback.js         |  2 +-
 tests/baselines/reference/typeOfThis.js        |  2 +-
 .../reference/typeOfThisInInstanceMember.js    |  2 +-
 .../reference/typeOfThisInInstanceMember2.js   |  2 +-
 .../reference/typeOfThisInMemberFunctions.js   |  2 +-
 .../typeParameterAssignmentCompat1.js          |  2 +-
 .../reference/typeParameterExtendingUnion1.js  |  2 +-
 .../reference/typeParameterExtendingUnion2.js  |  2 +-
 ...eParameterUsedAsTypeParameterConstraint4.js |  2 +-
 .../typeParameterWithInvalidConstraintType.js  |  2 +-
 ...peParametersAndParametersInComputedNames.js |  2 +-
 .../typeParametersAreIdenticalToThemselves.js  |  2 +-
 .../typeParametersAvailableInNestedScope.js    |  2 +-
 tests/baselines/reference/typeQueryOnClass.js  |  2 +-
 .../reference/typeQueryWithReservedWords.js    |  2 +-
 tests/baselines/reference/typeRelationships.js |  2 +-
 tests/baselines/reference/typeResolution.js    |  2 +-
 .../reference/typeResolution.sourcemap.txt     |  2 +-
 .../reference/typeVariableTypeGuards.js        |  2 +-
 .../reference/typedGenericPrototypeMember.js   |  2 +-
 tests/baselines/reference/typeofClass2.js      |  2 +-
 .../typesWithSpecializedCallSignatures.js      |  2 +-
 tests/baselines/reference/undeclaredMethod.js  |  2 +-
 .../baselines/reference/underscoreMapFirst.js  |  2 +-
 .../reference/unionTypeEquivalence.js          |  2 +-
 .../reference/unionTypeFromArrayLiteral.js     |  2 +-
 .../reference/unionTypesAssignability.js       |  2 +-
 .../reference/unknownTypeArgOnCall.js          |  2 +-
 .../reference/unspecializedConstraints.js      |  2 +-
 .../reference/unusedClassesinModule1.js        |  2 +-
 .../unusedIdentifiersConsolidated1.js          |  2 +-
 tests/baselines/reference/unusedImports10.js   |  2 +-
 tests/baselines/reference/unusedImports2.js    |  2 +-
 tests/baselines/reference/unusedImports3.js    |  2 +-
 tests/baselines/reference/unusedImports4.js    |  2 +-
 tests/baselines/reference/unusedImports5.js    |  2 +-
 tests/baselines/reference/unusedImports6.js    |  2 +-
 tests/baselines/reference/unusedImports7.js    |  2 +-
 tests/baselines/reference/unusedImports8.js    |  2 +-
 tests/baselines/reference/unusedImports9.js    |  2 +-
 .../reference/unusedInvalidTypeArguments.js    |  2 +-
 .../baselines/reference/unusedLocalProperty.js |  2 +-
 .../reference/unusedLocalsAndParameters.js     |  2 +-
 .../unusedLocalsAndParametersDeferred.js       |  2 +-
 ...sedLocalsAndParametersOverloadSignatures.js |  2 +-
 .../reference/unusedLocalsInMethod1.js         |  2 +-
 .../reference/unusedLocalsInMethod2.js         |  2 +-
 .../reference/unusedLocalsInMethod3.js         |  2 +-
 ...edMultipleParameters1InMethodDeclaration.js |  2 +-
 ...edMultipleParameters2InMethodDeclaration.js |  2 +-
 .../reference/unusedParametersInLambda1.js     |  2 +-
 .../reference/unusedParametersInLambda2.js     |  2 +-
 .../reference/unusedParametersThis.js          |  2 +-
 .../reference/unusedPrivateMembers.js          |  2 +-
 .../reference/unusedPrivateMethodInClass1.js   |  2 +-
 .../reference/unusedPrivateMethodInClass2.js   |  2 +-
 .../reference/unusedPrivateMethodInClass3.js   |  2 +-
 .../reference/unusedPrivateMethodInClass4.js   |  2 +-
 .../reference/unusedPrivateVariableInClass4.js |  2 +-
 ...unusedSingleParameterInMethodDeclaration.js |  2 +-
 .../reference/unusedTypeParameterInLambda1.js  |  2 +-
 .../reference/unusedTypeParameterInLambda2.js  |  2 +-
 .../reference/unusedTypeParameterInMethod1.js  |  2 +-
 .../reference/unusedTypeParameterInMethod2.js  |  2 +-
 .../reference/unusedTypeParameterInMethod3.js  |  2 +-
 .../reference/unusedTypeParameterInMethod4.js  |  2 +-
 .../reference/unusedTypeParameters2.js         |  2 +-
 .../reference/unusedTypeParameters3.js         |  2 +-
 .../reference/unusedVariablesinNamespaces2.js  |  2 +-
 .../reference/unusedVariablesinNamespaces3.js  |  2 +-
 tests/baselines/reference/vararg.js            |  2 +-
 ...DeclaratorResolvedDuringContextualTyping.js |  2 +-
 .../reference/visibilityOfTypeParameters.js    |  2 +-
 tests/baselines/reference/witness.js           |  2 +-
 .../wrappedAndRecursiveConstraints.js          |  2 +-
 .../wrappedAndRecursiveConstraints3.js         |  2 +-
 .../wrappedAndRecursiveConstraints4.js         |  2 +-
 983 files changed, 1017 insertions(+), 1000 deletions(-)

diff --git a/tests/baselines/reference/2dArrays.js b/tests/baselines/reference/2dArrays.js
index df4fe99cb9f76..6efc06c930e68 100644
--- a/tests/baselines/reference/2dArrays.js
+++ b/tests/baselines/reference/2dArrays.js
@@ -19,7 +19,7 @@ class Board {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ClassDeclaration11.js b/tests/baselines/reference/ClassDeclaration11.js
index e7a0cd57bf8d2..e38340fe71370 100644
--- a/tests/baselines/reference/ClassDeclaration11.js
+++ b/tests/baselines/reference/ClassDeclaration11.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ClassDeclaration13.js b/tests/baselines/reference/ClassDeclaration13.js
index f5cd1cf9dd707..b5c601da63196 100644
--- a/tests/baselines/reference/ClassDeclaration13.js
+++ b/tests/baselines/reference/ClassDeclaration13.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ClassDeclaration21.js b/tests/baselines/reference/ClassDeclaration21.js
index f45db91d3c01d..36601245464c6 100644
--- a/tests/baselines/reference/ClassDeclaration21.js
+++ b/tests/baselines/reference/ClassDeclaration21.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ClassDeclaration22.js b/tests/baselines/reference/ClassDeclaration22.js
index cc3501f34b6e9..339f67ed9a8f3 100644
--- a/tests/baselines/reference/ClassDeclaration22.js
+++ b/tests/baselines/reference/ClassDeclaration22.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ES5For-ofTypeCheck10.js b/tests/baselines/reference/ES5For-ofTypeCheck10.js
index 218c3ac481f6c..24c2aeb122a5a 100644
--- a/tests/baselines/reference/ES5For-ofTypeCheck10.js
+++ b/tests/baselines/reference/ES5For-ofTypeCheck10.js
@@ -18,7 +18,7 @@ for (var v of new StringIterator) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ES5SymbolProperty2.js b/tests/baselines/reference/ES5SymbolProperty2.js
index ba993fc8aa84b..025ccbabe3926 100644
--- a/tests/baselines/reference/ES5SymbolProperty2.js
+++ b/tests/baselines/reference/ES5SymbolProperty2.js
@@ -14,7 +14,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ES5SymbolProperty3.js b/tests/baselines/reference/ES5SymbolProperty3.js
index aa8858d628160..5e5fb48acb3c8 100644
--- a/tests/baselines/reference/ES5SymbolProperty3.js
+++ b/tests/baselines/reference/ES5SymbolProperty3.js
@@ -11,7 +11,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ES5SymbolProperty4.js b/tests/baselines/reference/ES5SymbolProperty4.js
index 445d2c287a8dc..01d11b7c37264 100644
--- a/tests/baselines/reference/ES5SymbolProperty4.js
+++ b/tests/baselines/reference/ES5SymbolProperty4.js
@@ -11,7 +11,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ES5SymbolProperty5.js b/tests/baselines/reference/ES5SymbolProperty5.js
index 7080a4731c575..8a9fccdac2ac5 100644
--- a/tests/baselines/reference/ES5SymbolProperty5.js
+++ b/tests/baselines/reference/ES5SymbolProperty5.js
@@ -11,7 +11,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ES5SymbolProperty6.js b/tests/baselines/reference/ES5SymbolProperty6.js
index 227b858ae1533..f75ad8f9cd40b 100644
--- a/tests/baselines/reference/ES5SymbolProperty6.js
+++ b/tests/baselines/reference/ES5SymbolProperty6.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ES5SymbolProperty7.js b/tests/baselines/reference/ES5SymbolProperty7.js
index dab10c6ed9382..7959bba459119 100644
--- a/tests/baselines/reference/ES5SymbolProperty7.js
+++ b/tests/baselines/reference/ES5SymbolProperty7.js
@@ -11,7 +11,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ExportClassWhichExtendsInterfaceWithInaccessibleType.js b/tests/baselines/reference/ExportClassWhichExtendsInterfaceWithInaccessibleType.js
index df1341194dca7..5b48523b144a8 100644
--- a/tests/baselines/reference/ExportClassWhichExtendsInterfaceWithInaccessibleType.js
+++ b/tests/baselines/reference/ExportClassWhichExtendsInterfaceWithInaccessibleType.js
@@ -23,7 +23,7 @@ module A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/Protected4.js b/tests/baselines/reference/Protected4.js
index 76c6cd2ce2f1f..f747d8a1ce2ab 100644
--- a/tests/baselines/reference/Protected4.js
+++ b/tests/baselines/reference/Protected4.js
@@ -7,7 +7,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/Protected7.js b/tests/baselines/reference/Protected7.js
index 7f80771561a58..8c1a7a0ce63a0 100644
--- a/tests/baselines/reference/Protected7.js
+++ b/tests/baselines/reference/Protected7.js
@@ -7,7 +7,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/TwoInternalModulesThatMergeEachWithExportedAndNonExportedClassesOfTheSameName.js b/tests/baselines/reference/TwoInternalModulesThatMergeEachWithExportedAndNonExportedClassesOfTheSameName.js
index e6b607eb82a13..739bb3e624ebc 100644
--- a/tests/baselines/reference/TwoInternalModulesThatMergeEachWithExportedAndNonExportedClassesOfTheSameName.js
+++ b/tests/baselines/reference/TwoInternalModulesThatMergeEachWithExportedAndNonExportedClassesOfTheSameName.js
@@ -44,7 +44,7 @@ var l: X.Y.Z.Line;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/abstractProperty.js b/tests/baselines/reference/abstractProperty.js
index e7d7888405e21..07bf1c18fc325 100644
--- a/tests/baselines/reference/abstractProperty.js
+++ b/tests/baselines/reference/abstractProperty.js
@@ -35,7 +35,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/accessInstanceMemberFromStaticMethod01.js b/tests/baselines/reference/accessInstanceMemberFromStaticMethod01.js
index 3703c8a5f1721..9b17d431c804c 100644
--- a/tests/baselines/reference/accessInstanceMemberFromStaticMethod01.js
+++ b/tests/baselines/reference/accessInstanceMemberFromStaticMethod01.js
@@ -11,7 +11,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/accessOverriddenBaseClassMember1.js b/tests/baselines/reference/accessOverriddenBaseClassMember1.js
index 6679aeb8f37ae..48d148bc18294 100644
--- a/tests/baselines/reference/accessOverriddenBaseClassMember1.js
+++ b/tests/baselines/reference/accessOverriddenBaseClassMember1.js
@@ -19,7 +19,7 @@ class ColoredPoint extends Point {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/accessibilityModifiers.js b/tests/baselines/reference/accessibilityModifiers.js
index eafe71a0b1523..3a692bdfc670e 100644
--- a/tests/baselines/reference/accessibilityModifiers.js
+++ b/tests/baselines/reference/accessibilityModifiers.js
@@ -48,7 +48,7 @@ class E {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/ambiguousCallsWhereReturnTypesAgree.js b/tests/baselines/reference/ambiguousCallsWhereReturnTypesAgree.js
index 5331718d748fd..9df30a09c2981 100644
--- a/tests/baselines/reference/ambiguousCallsWhereReturnTypesAgree.js
+++ b/tests/baselines/reference/ambiguousCallsWhereReturnTypesAgree.js
@@ -32,7 +32,7 @@ class TestClass2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/anonterface.js b/tests/baselines/reference/anonterface.js
index 3659301015dbb..d81ef50f9638f 100644
--- a/tests/baselines/reference/anonterface.js
+++ b/tests/baselines/reference/anonterface.js
@@ -18,7 +18,7 @@ c.m(function(n) { return "hello: "+n; },18);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/anonymousClassExpression2.js b/tests/baselines/reference/anonymousClassExpression2.js
index 091849f1e4b8f..c7f750b86d4d6 100644
--- a/tests/baselines/reference/anonymousClassExpression2.js
+++ b/tests/baselines/reference/anonymousClassExpression2.js
@@ -22,7 +22,7 @@ while (0) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/argsInScope.js b/tests/baselines/reference/argsInScope.js
index d5f922d418dcf..9519d16c8b6a7 100644
--- a/tests/baselines/reference/argsInScope.js
+++ b/tests/baselines/reference/argsInScope.js
@@ -15,7 +15,7 @@ c.P(1,2,3);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/arrayAssignmentTest1.js b/tests/baselines/reference/arrayAssignmentTest1.js
index a1ca1842bb07b..af01a784f6b1b 100644
--- a/tests/baselines/reference/arrayAssignmentTest1.js
+++ b/tests/baselines/reference/arrayAssignmentTest1.js
@@ -89,7 +89,7 @@ arr_any = i1; // should be an error - is
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/arrayAssignmentTest2.js b/tests/baselines/reference/arrayAssignmentTest2.js
index 7fd17596bb376..0ac5c7f7de034 100644
--- a/tests/baselines/reference/arrayAssignmentTest2.js
+++ b/tests/baselines/reference/arrayAssignmentTest2.js
@@ -63,7 +63,7 @@ arr_any = i1; // should be an error - is
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/arrayAssignmentTest4.js b/tests/baselines/reference/arrayAssignmentTest4.js
index 768671803b426..1596ddb15ef3f 100644
--- a/tests/baselines/reference/arrayAssignmentTest4.js
+++ b/tests/baselines/reference/arrayAssignmentTest4.js
@@ -28,7 +28,7 @@ arr_any = c3; // should be an error - is
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/arrayAssignmentTest5.js b/tests/baselines/reference/arrayAssignmentTest5.js
index f43e5072841cb..7c72e5c0bf82c 100644
--- a/tests/baselines/reference/arrayAssignmentTest5.js
+++ b/tests/baselines/reference/arrayAssignmentTest5.js
@@ -37,7 +37,7 @@ module Test {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/arrayAssignmentTest6.js b/tests/baselines/reference/arrayAssignmentTest6.js
index 5ff3058351be2..8842ab533fab2 100644
--- a/tests/baselines/reference/arrayAssignmentTest6.js
+++ b/tests/baselines/reference/arrayAssignmentTest6.js
@@ -24,7 +24,7 @@ module Test {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/arrayBestCommonTypes.js b/tests/baselines/reference/arrayBestCommonTypes.js
index 2beb7fca153b1..ebf558d49f293 100644
--- a/tests/baselines/reference/arrayBestCommonTypes.js
+++ b/tests/baselines/reference/arrayBestCommonTypes.js
@@ -121,7 +121,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/arrayOfExportedClass.js b/tests/baselines/reference/arrayOfExportedClass.js
index ef4bd8cfa70f0..68afeec4cd3bf 100644
--- a/tests/baselines/reference/arrayOfExportedClass.js
+++ b/tests/baselines/reference/arrayOfExportedClass.js
@@ -37,7 +37,7 @@ module.exports = Car;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/arrayReferenceWithoutTypeArgs.js b/tests/baselines/reference/arrayReferenceWithoutTypeArgs.js
index a5300c94ff796..14b1bb2e295d5 100644
--- a/tests/baselines/reference/arrayReferenceWithoutTypeArgs.js
+++ b/tests/baselines/reference/arrayReferenceWithoutTypeArgs.js
@@ -7,7 +7,7 @@ class X {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/arrayconcat.js b/tests/baselines/reference/arrayconcat.js
index 78b9d75a0073d..3a3d5b66c9358 100644
--- a/tests/baselines/reference/arrayconcat.js
+++ b/tests/baselines/reference/arrayconcat.js
@@ -32,7 +32,7 @@ class parser {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/arrowFunctionExpressions.js b/tests/baselines/reference/arrowFunctionExpressions.js
index 418a3f1079b90..a477d06624fa1 100644
--- a/tests/baselines/reference/arrowFunctionExpressions.js
+++ b/tests/baselines/reference/arrowFunctionExpressions.js
@@ -103,7 +103,7 @@ function tryCatchFn() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/asiAbstract.js b/tests/baselines/reference/asiAbstract.js
index f8cb55f61512d..218d2dc0c73b4 100644
--- a/tests/baselines/reference/asiAbstract.js
+++ b/tests/baselines/reference/asiAbstract.js
@@ -19,7 +19,7 @@ class C3 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/asiInES6Classes.js b/tests/baselines/reference/asiInES6Classes.js
index 48bd24a8447e6..93393e77d9f28 100644
--- a/tests/baselines/reference/asiInES6Classes.js
+++ b/tests/baselines/reference/asiInES6Classes.js
@@ -26,7 +26,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/asiPublicPrivateProtected.js b/tests/baselines/reference/asiPublicPrivateProtected.js
index 281a94b1c65fb..98fe4ab84fe41 100644
--- a/tests/baselines/reference/asiPublicPrivateProtected.js
+++ b/tests/baselines/reference/asiPublicPrivateProtected.js
@@ -44,7 +44,7 @@ class ClassWithThreeMembers {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/assertInWrapSomeTypeParameter.js b/tests/baselines/reference/assertInWrapSomeTypeParameter.js
index d2c45d5f9ffbb..4da283e050bd7 100644
--- a/tests/baselines/reference/assertInWrapSomeTypeParameter.js
+++ b/tests/baselines/reference/assertInWrapSomeTypeParameter.js
@@ -9,7 +9,7 @@ class C<T extends C<T>> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/assignToExistingClass.js b/tests/baselines/reference/assignToExistingClass.js
index 4c70dc5db5dd8..7abfde2a72465 100644
--- a/tests/baselines/reference/assignToExistingClass.js
+++ b/tests/baselines/reference/assignToExistingClass.js
@@ -19,7 +19,7 @@ module Test {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/assignmentCompatInterfaceWithStringIndexSignature.js b/tests/baselines/reference/assignmentCompatInterfaceWithStringIndexSignature.js
index 611796e23648a..08863fe1a1eab 100644
--- a/tests/baselines/reference/assignmentCompatInterfaceWithStringIndexSignature.js
+++ b/tests/baselines/reference/assignmentCompatInterfaceWithStringIndexSignature.js
@@ -20,7 +20,7 @@ Biz(new Foo());
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/assignmentLHSIsValue.js b/tests/baselines/reference/assignmentLHSIsValue.js
index 6ac57acd08e41..072733202be4f 100644
--- a/tests/baselines/reference/assignmentLHSIsValue.js
+++ b/tests/baselines/reference/assignmentLHSIsValue.js
@@ -74,7 +74,7 @@ foo() = value;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/asyncAwaitIsolatedModules_es5.js b/tests/baselines/reference/asyncAwaitIsolatedModules_es5.js
index 13a4aa91eea53..5283220b8485e 100644
--- a/tests/baselines/reference/asyncAwaitIsolatedModules_es5.js
+++ b/tests/baselines/reference/asyncAwaitIsolatedModules_es5.js
@@ -44,7 +44,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/asyncAwait_es5.js b/tests/baselines/reference/asyncAwait_es5.js
index 6491e06e906ec..1b37fc52d840c 100644
--- a/tests/baselines/reference/asyncAwait_es5.js
+++ b/tests/baselines/reference/asyncAwait_es5.js
@@ -43,7 +43,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/asyncImportedPromise_es5.js b/tests/baselines/reference/asyncImportedPromise_es5.js
index 1657952b7bdf2..d24b9cbf592c9 100644
--- a/tests/baselines/reference/asyncImportedPromise_es5.js
+++ b/tests/baselines/reference/asyncImportedPromise_es5.js
@@ -35,7 +35,7 @@ exports.Task = Task;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesClass.js b/tests/baselines/reference/augmentedTypesClass.js
index 2df6215fa0f65..1f09eae2018cc 100644
--- a/tests/baselines/reference/augmentedTypesClass.js
+++ b/tests/baselines/reference/augmentedTypesClass.js
@@ -11,7 +11,7 @@ enum c4 { One } // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesClass2.js b/tests/baselines/reference/augmentedTypesClass2.js
index 9f884b4662cb1..2ccfebcb61239 100644
--- a/tests/baselines/reference/augmentedTypesClass2.js
+++ b/tests/baselines/reference/augmentedTypesClass2.js
@@ -35,7 +35,7 @@ class c44 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesClass2a.js b/tests/baselines/reference/augmentedTypesClass2a.js
index d9210fe443b54..65d4f2a8a98a4 100644
--- a/tests/baselines/reference/augmentedTypesClass2a.js
+++ b/tests/baselines/reference/augmentedTypesClass2a.js
@@ -8,7 +8,7 @@ var c2 = () => { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesClass3.js b/tests/baselines/reference/augmentedTypesClass3.js
index 84967d0911bf8..0875e90c07cde 100644
--- a/tests/baselines/reference/augmentedTypesClass3.js
+++ b/tests/baselines/reference/augmentedTypesClass3.js
@@ -17,7 +17,7 @@ class c5c { public foo() { } }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesClass4.js b/tests/baselines/reference/augmentedTypesClass4.js
index 1f01bd67cb4ac..a0d0a7bc9167c 100644
--- a/tests/baselines/reference/augmentedTypesClass4.js
+++ b/tests/baselines/reference/augmentedTypesClass4.js
@@ -8,7 +8,7 @@ class c3 { public bar() { } } // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesEnum.js b/tests/baselines/reference/augmentedTypesEnum.js
index 03ad8f49f8cfd..671cca6cf579b 100644
--- a/tests/baselines/reference/augmentedTypesEnum.js
+++ b/tests/baselines/reference/augmentedTypesEnum.js
@@ -39,7 +39,7 @@ module e6b { export var y = 2; } // should be error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesEnum2.js b/tests/baselines/reference/augmentedTypesEnum2.js
index 785bf63ef10f6..5a14262dfaabb 100644
--- a/tests/baselines/reference/augmentedTypesEnum2.js
+++ b/tests/baselines/reference/augmentedTypesEnum2.js
@@ -23,7 +23,7 @@ class e2 { // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesExternalModule1.js b/tests/baselines/reference/augmentedTypesExternalModule1.js
index fa3ceebf95cbd..6f692b39e5901 100644
--- a/tests/baselines/reference/augmentedTypesExternalModule1.js
+++ b/tests/baselines/reference/augmentedTypesExternalModule1.js
@@ -7,7 +7,7 @@ module c5 { } // should be ok everywhere
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesFunction.js b/tests/baselines/reference/augmentedTypesFunction.js
index 8568e87a32674..3b55e6318ec6e 100644
--- a/tests/baselines/reference/augmentedTypesFunction.js
+++ b/tests/baselines/reference/augmentedTypesFunction.js
@@ -42,7 +42,7 @@ module y5c { export interface I { foo(): void } } // should be an error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesInterface.js b/tests/baselines/reference/augmentedTypesInterface.js
index 8f0ac15c0bae5..fb87655645b75 100644
--- a/tests/baselines/reference/augmentedTypesInterface.js
+++ b/tests/baselines/reference/augmentedTypesInterface.js
@@ -38,7 +38,7 @@ interface i4 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesModules.js b/tests/baselines/reference/augmentedTypesModules.js
index c940ed86e3ea3..be5cff017bf4e 100644
--- a/tests/baselines/reference/augmentedTypesModules.js
+++ b/tests/baselines/reference/augmentedTypesModules.js
@@ -101,7 +101,7 @@ module m6 { export var y = 2; }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesModules2.js b/tests/baselines/reference/augmentedTypesModules2.js
index e3bbc2ca79170..db2a6033b142c 100644
--- a/tests/baselines/reference/augmentedTypesModules2.js
+++ b/tests/baselines/reference/augmentedTypesModules2.js
@@ -32,7 +32,7 @@ module m2g { export class C { foo() { } } }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesModules3.js b/tests/baselines/reference/augmentedTypesModules3.js
index cf1ca88d4a997..f2b3c91279bc5 100644
--- a/tests/baselines/reference/augmentedTypesModules3.js
+++ b/tests/baselines/reference/augmentedTypesModules3.js
@@ -10,7 +10,7 @@ class m3a { foo() { } } // error, class isn't ambient or declared before the mod
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesModules3b.js b/tests/baselines/reference/augmentedTypesModules3b.js
index bc885b86be001..776efa20aa7f7 100644
--- a/tests/baselines/reference/augmentedTypesModules3b.js
+++ b/tests/baselines/reference/augmentedTypesModules3b.js
@@ -22,7 +22,7 @@ module m3g { export class C { foo() { } } }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesModules4.js b/tests/baselines/reference/augmentedTypesModules4.js
index 0aa12b48d10bd..499639c8bffed 100644
--- a/tests/baselines/reference/augmentedTypesModules4.js
+++ b/tests/baselines/reference/augmentedTypesModules4.js
@@ -26,7 +26,7 @@ module m5 { export interface I { foo(): void } } // should already be reasonably
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/augmentedTypesVar.js b/tests/baselines/reference/augmentedTypesVar.js
index 0dc90e7ed8057..f50351cefd69a 100644
--- a/tests/baselines/reference/augmentedTypesVar.js
+++ b/tests/baselines/reference/augmentedTypesVar.js
@@ -40,7 +40,7 @@ module x6b { export var y = 2; } // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/autoLift2.js b/tests/baselines/reference/autoLift2.js
index c44e62f67e076..411676beaa24d 100644
--- a/tests/baselines/reference/autoLift2.js
+++ b/tests/baselines/reference/autoLift2.js
@@ -35,7 +35,7 @@ a.baz();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/autolift4.js b/tests/baselines/reference/autolift4.js
index c3ab0d4b7ea47..9266114e3111a 100644
--- a/tests/baselines/reference/autolift4.js
+++ b/tests/baselines/reference/autolift4.js
@@ -27,7 +27,7 @@ class Point3D extends Point {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/avoid.js b/tests/baselines/reference/avoid.js
index a5695425548d3..77ccdd7c1f072 100644
--- a/tests/baselines/reference/avoid.js
+++ b/tests/baselines/reference/avoid.js
@@ -23,7 +23,7 @@ var N=new f();  // ok with void fn
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/baseCheck.js b/tests/baselines/reference/baseCheck.js
index 1bf14a65f8f32..e95bfcfc90fae 100644
--- a/tests/baselines/reference/baseCheck.js
+++ b/tests/baselines/reference/baseCheck.js
@@ -43,7 +43,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/baseTypeAfterDerivedType.js b/tests/baselines/reference/baseTypeAfterDerivedType.js
index b88f393adc3a3..d2ac028ef5052 100644
--- a/tests/baselines/reference/baseTypeAfterDerivedType.js
+++ b/tests/baselines/reference/baseTypeAfterDerivedType.js
@@ -20,7 +20,7 @@ interface Base2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/baseTypeWrappingInstantiationChain.js b/tests/baselines/reference/baseTypeWrappingInstantiationChain.js
index 1c9e89f2e2b05..873caa805bb70 100644
--- a/tests/baselines/reference/baseTypeWrappingInstantiationChain.js
+++ b/tests/baselines/reference/baseTypeWrappingInstantiationChain.js
@@ -41,7 +41,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/binopAssignmentShouldHaveType.js b/tests/baselines/reference/binopAssignmentShouldHaveType.js
index bfd238265dd55..ad198e1f6427f 100644
--- a/tests/baselines/reference/binopAssignmentShouldHaveType.js
+++ b/tests/baselines/reference/binopAssignmentShouldHaveType.js
@@ -23,7 +23,7 @@ module Test {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/blockScopedFunctionDeclarationInStrictClass.js b/tests/baselines/reference/blockScopedFunctionDeclarationInStrictClass.js
index 4da34779e29eb..c921d4858d8e3 100644
--- a/tests/baselines/reference/blockScopedFunctionDeclarationInStrictClass.js
+++ b/tests/baselines/reference/blockScopedFunctionDeclarationInStrictClass.js
@@ -13,7 +13,7 @@ class c {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/blockScopedVariablesUseBeforeDef.js b/tests/baselines/reference/blockScopedVariablesUseBeforeDef.js
index e0255e543d12b..636c9bc7e0f9b 100644
--- a/tests/baselines/reference/blockScopedVariablesUseBeforeDef.js
+++ b/tests/baselines/reference/blockScopedVariablesUseBeforeDef.js
@@ -107,7 +107,7 @@ function foo14() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callGenericFunctionWithIncorrectNumberOfTypeArguments.js b/tests/baselines/reference/callGenericFunctionWithIncorrectNumberOfTypeArguments.js
index 8aa77cb43251c..5e3269c5a5298 100644
--- a/tests/baselines/reference/callGenericFunctionWithIncorrectNumberOfTypeArguments.js
+++ b/tests/baselines/reference/callGenericFunctionWithIncorrectNumberOfTypeArguments.js
@@ -50,7 +50,7 @@ var r7b = i2.f<number, string, number>(1, '');
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callGenericFunctionWithZeroTypeArguments.js b/tests/baselines/reference/callGenericFunctionWithZeroTypeArguments.js
index e324c528ef2ae..f3dc12e959092 100644
--- a/tests/baselines/reference/callGenericFunctionWithZeroTypeArguments.js
+++ b/tests/baselines/reference/callGenericFunctionWithZeroTypeArguments.js
@@ -41,7 +41,7 @@ var r7 = i2.f(1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callNonGenericFunctionWithTypeArguments.js b/tests/baselines/reference/callNonGenericFunctionWithTypeArguments.js
index de31d2b6a6c41..0fbd173712376 100644
--- a/tests/baselines/reference/callNonGenericFunctionWithTypeArguments.js
+++ b/tests/baselines/reference/callNonGenericFunctionWithTypeArguments.js
@@ -49,7 +49,7 @@ var r8 = a2<number>();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callOverloadViaElementAccessExpression.js b/tests/baselines/reference/callOverloadViaElementAccessExpression.js
index 108b1deb1be29..fd03dcb6b7a41 100644
--- a/tests/baselines/reference/callOverloadViaElementAccessExpression.js
+++ b/tests/baselines/reference/callOverloadViaElementAccessExpression.js
@@ -15,7 +15,7 @@ var r2: number = c['foo']('');
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callOverloads1.js b/tests/baselines/reference/callOverloads1.js
index 6122d36bad581..4bdfc90cea710 100644
--- a/tests/baselines/reference/callOverloads1.js
+++ b/tests/baselines/reference/callOverloads1.js
@@ -21,7 +21,7 @@ Foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callOverloads2.js b/tests/baselines/reference/callOverloads2.js
index bbcac35f20085..06ac17dad9ffa 100644
--- a/tests/baselines/reference/callOverloads2.js
+++ b/tests/baselines/reference/callOverloads2.js
@@ -27,7 +27,7 @@ Foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callOverloads3.js b/tests/baselines/reference/callOverloads3.js
index 024d946618155..2d81158acb5f4 100644
--- a/tests/baselines/reference/callOverloads3.js
+++ b/tests/baselines/reference/callOverloads3.js
@@ -21,7 +21,7 @@ Foo("s");
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callOverloads4.js b/tests/baselines/reference/callOverloads4.js
index 35422f36edd4c..dd28490bb3610 100644
--- a/tests/baselines/reference/callOverloads4.js
+++ b/tests/baselines/reference/callOverloads4.js
@@ -21,7 +21,7 @@ Foo("s");
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callOverloads5.js b/tests/baselines/reference/callOverloads5.js
index 79da12c536952..f825b622d8fa4 100644
--- a/tests/baselines/reference/callOverloads5.js
+++ b/tests/baselines/reference/callOverloads5.js
@@ -23,7 +23,7 @@ Foo("s");
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callSignatureWithOptionalParameterAndInitializer.js b/tests/baselines/reference/callSignatureWithOptionalParameterAndInitializer.js
index 025ca7d42d738..a1bce8bf6e096 100644
--- a/tests/baselines/reference/callSignatureWithOptionalParameterAndInitializer.js
+++ b/tests/baselines/reference/callSignatureWithOptionalParameterAndInitializer.js
@@ -60,7 +60,7 @@ b.b(1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callSignaturesWithAccessibilityModifiersOnParameters.js b/tests/baselines/reference/callSignaturesWithAccessibilityModifiersOnParameters.js
index 7fadb09ad6532..8d1e1d7af5e83 100644
--- a/tests/baselines/reference/callSignaturesWithAccessibilityModifiersOnParameters.js
+++ b/tests/baselines/reference/callSignaturesWithAccessibilityModifiersOnParameters.js
@@ -43,7 +43,7 @@ var b = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callSignaturesWithDuplicateParameters.js b/tests/baselines/reference/callSignaturesWithDuplicateParameters.js
index e2d4feaf236ce..f52f4d204f158 100644
--- a/tests/baselines/reference/callSignaturesWithDuplicateParameters.js
+++ b/tests/baselines/reference/callSignaturesWithDuplicateParameters.js
@@ -43,7 +43,7 @@ var b = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callSignaturesWithOptionalParameters.js b/tests/baselines/reference/callSignaturesWithOptionalParameters.js
index da7248d8918c3..00dad4a36ed49 100644
--- a/tests/baselines/reference/callSignaturesWithOptionalParameters.js
+++ b/tests/baselines/reference/callSignaturesWithOptionalParameters.js
@@ -60,7 +60,7 @@ b.b(1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callSignaturesWithOptionalParameters2.js b/tests/baselines/reference/callSignaturesWithOptionalParameters2.js
index ceaa857acdec7..abff5436694ce 100644
--- a/tests/baselines/reference/callSignaturesWithOptionalParameters2.js
+++ b/tests/baselines/reference/callSignaturesWithOptionalParameters2.js
@@ -64,7 +64,7 @@ a.foo(1, 2, 3);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callSignaturesWithParameterInitializers.js b/tests/baselines/reference/callSignaturesWithParameterInitializers.js
index 03ddb17e65ff4..feb934898e916 100644
--- a/tests/baselines/reference/callSignaturesWithParameterInitializers.js
+++ b/tests/baselines/reference/callSignaturesWithParameterInitializers.js
@@ -62,7 +62,7 @@ b.b(1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callSignaturesWithParameterInitializers2.js b/tests/baselines/reference/callSignaturesWithParameterInitializers2.js
index a4b5c22c09b36..9ad6b10939ff6 100644
--- a/tests/baselines/reference/callSignaturesWithParameterInitializers2.js
+++ b/tests/baselines/reference/callSignaturesWithParameterInitializers2.js
@@ -31,7 +31,7 @@ b.foo(1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/callWithSpread.js b/tests/baselines/reference/callWithSpread.js
index b019b2f7152de..8e815cfc73b48 100644
--- a/tests/baselines/reference/callWithSpread.js
+++ b/tests/baselines/reference/callWithSpread.js
@@ -62,7 +62,7 @@ class D extends C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js b/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js
index 9b4dc3ea04b49..f6806f8a72e67 100644
--- a/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js
+++ b/tests/baselines/reference/captureSuperPropertyAccessInSuperCall01.js
@@ -15,7 +15,7 @@ class B extends A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/captureThisInSuperCall.js b/tests/baselines/reference/captureThisInSuperCall.js
index 051495829cb30..bd2f298fddea6 100644
--- a/tests/baselines/reference/captureThisInSuperCall.js
+++ b/tests/baselines/reference/captureThisInSuperCall.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/capturedLetConstInLoop10.js b/tests/baselines/reference/capturedLetConstInLoop10.js
index ae6a1ea4b87b5..5da064f30157a 100644
--- a/tests/baselines/reference/capturedLetConstInLoop10.js
+++ b/tests/baselines/reference/capturedLetConstInLoop10.js
@@ -49,7 +49,7 @@ class B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/capturedLetConstInLoop13.js b/tests/baselines/reference/capturedLetConstInLoop13.js
index ed38248394155..4930986ebf46c 100644
--- a/tests/baselines/reference/capturedLetConstInLoop13.js
+++ b/tests/baselines/reference/capturedLetConstInLoop13.js
@@ -26,7 +26,7 @@ new Main();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/capturedLetConstInLoop9.js b/tests/baselines/reference/capturedLetConstInLoop9.js
index 4270f9f52ed79..5f2aa7eebb184 100644
--- a/tests/baselines/reference/capturedLetConstInLoop9.js
+++ b/tests/baselines/reference/capturedLetConstInLoop9.js
@@ -142,7 +142,7 @@ function foo3 () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js b/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js
index 093c7fe5e5f04..244b314ab043a 100644
--- a/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js
+++ b/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.js
@@ -23,7 +23,7 @@ class C extends B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.js b/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.js
index f430c1eac327d..8ed08284892ba 100644
--- a/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.js
+++ b/tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.js
@@ -45,7 +45,7 @@ class Chain2<T extends I> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/checkJsxChildrenProperty10.js b/tests/baselines/reference/checkJsxChildrenProperty10.js
index c0af8756007f0..f28b88947fe12 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty10.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty10.js
@@ -26,7 +26,7 @@ let k4 = <Button> <h2> Hello </h2> </Button>;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/checkJsxChildrenProperty11.js b/tests/baselines/reference/checkJsxChildrenProperty11.js
index c0af8756007f0..f28b88947fe12 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty11.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty11.js
@@ -26,7 +26,7 @@ let k4 = <Button> <h2> Hello </h2> </Button>;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/checkJsxChildrenProperty12.js b/tests/baselines/reference/checkJsxChildrenProperty12.js
index 0669739358d01..4c133916e5ed8 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty12.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty12.js
@@ -47,7 +47,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/checkJsxChildrenProperty13.js b/tests/baselines/reference/checkJsxChildrenProperty13.js
index 550873e41f2e4..280f40f5f3a4f 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty13.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty13.js
@@ -42,7 +42,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/checkJsxChildrenProperty3.js b/tests/baselines/reference/checkJsxChildrenProperty3.js
index cf68946122b0f..abbdd2782d758 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty3.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty3.js
@@ -54,7 +54,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/checkJsxChildrenProperty4.js b/tests/baselines/reference/checkJsxChildrenProperty4.js
index bc759363642ca..b1f2c848256b1 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty4.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty4.js
@@ -59,7 +59,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/checkJsxChildrenProperty5.js b/tests/baselines/reference/checkJsxChildrenProperty5.js
index 5a0b5a414b7ca..dff3f60e5066c 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty5.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty5.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/checkJsxChildrenProperty6.js b/tests/baselines/reference/checkJsxChildrenProperty6.js
index 4a6a56a864558..3326559f4359a 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty6.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty6.js
@@ -58,7 +58,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/checkJsxChildrenProperty7.js b/tests/baselines/reference/checkJsxChildrenProperty7.js
index 3ac2ebe39c16a..3d636d44bfa7d 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty7.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty7.js
@@ -43,7 +43,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/checkJsxChildrenProperty8.js b/tests/baselines/reference/checkJsxChildrenProperty8.js
index 111c407133523..f426ed6fe9e98 100644
--- a/tests/baselines/reference/checkJsxChildrenProperty8.js
+++ b/tests/baselines/reference/checkJsxChildrenProperty8.js
@@ -44,7 +44,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.js b/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.js
index 8e45ac53fdd70..4342e6a90c2b3 100644
--- a/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.js
+++ b/tests/baselines/reference/checkSwitchStatementIfCaseTypeIsString.js
@@ -15,7 +15,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractAsIdentifier.js b/tests/baselines/reference/classAbstractAsIdentifier.js
index 96a03e1de476a..493eb5234fac5 100644
--- a/tests/baselines/reference/classAbstractAsIdentifier.js
+++ b/tests/baselines/reference/classAbstractAsIdentifier.js
@@ -9,7 +9,7 @@ new abstract;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractCrashedOnce.js b/tests/baselines/reference/classAbstractCrashedOnce.js
index acb93f58c82ff..76117f6862851 100644
--- a/tests/baselines/reference/classAbstractCrashedOnce.js
+++ b/tests/baselines/reference/classAbstractCrashedOnce.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractExtends.js b/tests/baselines/reference/classAbstractExtends.js
index 8a4dcd5ec3802..206bde07b5316 100644
--- a/tests/baselines/reference/classAbstractExtends.js
+++ b/tests/baselines/reference/classAbstractExtends.js
@@ -19,7 +19,7 @@ class E extends B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractGeneric.js b/tests/baselines/reference/classAbstractGeneric.js
index d01b5b6350017..cbd15bd17cafc 100644
--- a/tests/baselines/reference/classAbstractGeneric.js
+++ b/tests/baselines/reference/classAbstractGeneric.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractInstantiations2.js b/tests/baselines/reference/classAbstractInstantiations2.js
index 286341200d950..feb87fa9dd91a 100644
--- a/tests/baselines/reference/classAbstractInstantiations2.js
+++ b/tests/baselines/reference/classAbstractInstantiations2.js
@@ -55,7 +55,7 @@ class H { // error -- not declared abstract
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractMethodInNonAbstractClass.js b/tests/baselines/reference/classAbstractMethodInNonAbstractClass.js
index 696848b58a31a..d6b8681402831 100644
--- a/tests/baselines/reference/classAbstractMethodInNonAbstractClass.js
+++ b/tests/baselines/reference/classAbstractMethodInNonAbstractClass.js
@@ -11,7 +11,7 @@ class B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractMethodWithImplementation.js b/tests/baselines/reference/classAbstractMethodWithImplementation.js
index 25db3df4d6f68..1ae64d6d1681f 100644
--- a/tests/baselines/reference/classAbstractMethodWithImplementation.js
+++ b/tests/baselines/reference/classAbstractMethodWithImplementation.js
@@ -7,7 +7,7 @@ abstract class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractOverloads.js b/tests/baselines/reference/classAbstractOverloads.js
index 77619fce61cde..f02fae10e6cb4 100644
--- a/tests/baselines/reference/classAbstractOverloads.js
+++ b/tests/baselines/reference/classAbstractOverloads.js
@@ -28,7 +28,7 @@ abstract class B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractOverrideWithAbstract.js b/tests/baselines/reference/classAbstractOverrideWithAbstract.js
index 254b8686c02e4..156168d83abcc 100644
--- a/tests/baselines/reference/classAbstractOverrideWithAbstract.js
+++ b/tests/baselines/reference/classAbstractOverrideWithAbstract.js
@@ -27,7 +27,7 @@ class DD extends BB {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractSuperCalls.js b/tests/baselines/reference/classAbstractSuperCalls.js
index fa99360fd1017..13f55f6a600ec 100644
--- a/tests/baselines/reference/classAbstractSuperCalls.js
+++ b/tests/baselines/reference/classAbstractSuperCalls.js
@@ -30,7 +30,7 @@ abstract class BB extends AA {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractUsingAbstractMethod1.js b/tests/baselines/reference/classAbstractUsingAbstractMethod1.js
index 99715ee8e69f2..e1b52ebf8419c 100644
--- a/tests/baselines/reference/classAbstractUsingAbstractMethod1.js
+++ b/tests/baselines/reference/classAbstractUsingAbstractMethod1.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classAbstractUsingAbstractMethods2.js b/tests/baselines/reference/classAbstractUsingAbstractMethods2.js
index 364cae47a9186..23be8586011fc 100644
--- a/tests/baselines/reference/classAbstractUsingAbstractMethods2.js
+++ b/tests/baselines/reference/classAbstractUsingAbstractMethods2.js
@@ -41,7 +41,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classBlockScoping.js b/tests/baselines/reference/classBlockScoping.js
index 1151a24ab72db..db1f575dae409 100644
--- a/tests/baselines/reference/classBlockScoping.js
+++ b/tests/baselines/reference/classBlockScoping.js
@@ -37,7 +37,7 @@ function f(b: boolean) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classConstructorAccessibility2.js b/tests/baselines/reference/classConstructorAccessibility2.js
index 63944ff2cd2f2..8bcc6fd16337a 100644
--- a/tests/baselines/reference/classConstructorAccessibility2.js
+++ b/tests/baselines/reference/classConstructorAccessibility2.js
@@ -49,7 +49,7 @@ var dc = new DerivedC(1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classConstructorAccessibility4.js b/tests/baselines/reference/classConstructorAccessibility4.js
index 3efa4cbb2e871..5538370e110a5 100644
--- a/tests/baselines/reference/classConstructorAccessibility4.js
+++ b/tests/baselines/reference/classConstructorAccessibility4.js
@@ -33,7 +33,7 @@ class D {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classExpression4.js b/tests/baselines/reference/classExpression4.js
index 072f5ba0c2d6f..ec2972f0c1793 100644
--- a/tests/baselines/reference/classExpression4.js
+++ b/tests/baselines/reference/classExpression4.js
@@ -11,7 +11,7 @@ let x = (new C).foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classExpression5.js b/tests/baselines/reference/classExpression5.js
index 1685fdde3c11c..1d46433653a6b 100644
--- a/tests/baselines/reference/classExpression5.js
+++ b/tests/baselines/reference/classExpression5.js
@@ -9,7 +9,7 @@ new class {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classExpressionTest1.js b/tests/baselines/reference/classExpressionTest1.js
index c48c51b9401d4..0a76866cac38f 100644
--- a/tests/baselines/reference/classExpressionTest1.js
+++ b/tests/baselines/reference/classExpressionTest1.js
@@ -16,7 +16,7 @@ function M() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classExpressionTest2.js b/tests/baselines/reference/classExpressionTest2.js
index 742187bdcd33f..4f6878bedd5a5 100644
--- a/tests/baselines/reference/classExpressionTest2.js
+++ b/tests/baselines/reference/classExpressionTest2.js
@@ -16,7 +16,7 @@ function M() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classExpressions.js b/tests/baselines/reference/classExpressions.js
index ceab0fbda894f..1a167e0c116da 100644
--- a/tests/baselines/reference/classExpressions.js
+++ b/tests/baselines/reference/classExpressions.js
@@ -12,7 +12,7 @@ let x = class B implements A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classExtendingClass.js b/tests/baselines/reference/classExtendingClass.js
index 6daaab5017685..ce6ea2cecefec 100644
--- a/tests/baselines/reference/classExtendingClass.js
+++ b/tests/baselines/reference/classExtendingClass.js
@@ -35,7 +35,7 @@ var r8 = D2.other(1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classExtendsInterfaceThatExtendsClassWithPrivates1.js b/tests/baselines/reference/classExtendsInterfaceThatExtendsClassWithPrivates1.js
index 7e2a70655ab61..d4a59ac4ec964 100644
--- a/tests/baselines/reference/classExtendsInterfaceThatExtendsClassWithPrivates1.js
+++ b/tests/baselines/reference/classExtendsInterfaceThatExtendsClassWithPrivates1.js
@@ -18,7 +18,7 @@ class D2 implements I {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classImplementsClass2.js b/tests/baselines/reference/classImplementsClass2.js
index 0d9da36165f06..919169da60c6d 100644
--- a/tests/baselines/reference/classImplementsClass2.js
+++ b/tests/baselines/reference/classImplementsClass2.js
@@ -17,7 +17,7 @@ c2 = c;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classImplementsClass3.js b/tests/baselines/reference/classImplementsClass3.js
index c788aeaf566e1..304e64d36a08b 100644
--- a/tests/baselines/reference/classImplementsClass3.js
+++ b/tests/baselines/reference/classImplementsClass3.js
@@ -18,7 +18,7 @@ c2 = c;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classImplementsClass4.js b/tests/baselines/reference/classImplementsClass4.js
index 6b00105152293..79e5839d6174b 100644
--- a/tests/baselines/reference/classImplementsClass4.js
+++ b/tests/baselines/reference/classImplementsClass4.js
@@ -20,7 +20,7 @@ c2 = c;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classImplementsClass5.js b/tests/baselines/reference/classImplementsClass5.js
index 3807c7a8654b0..4e572a2d6f036 100644
--- a/tests/baselines/reference/classImplementsClass5.js
+++ b/tests/baselines/reference/classImplementsClass5.js
@@ -21,7 +21,7 @@ c2 = c;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classImplementsClass6.js b/tests/baselines/reference/classImplementsClass6.js
index 720329f26f7fa..c5003ec28f9d8 100644
--- a/tests/baselines/reference/classImplementsClass6.js
+++ b/tests/baselines/reference/classImplementsClass6.js
@@ -25,7 +25,7 @@ c2.bar(); // should error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classImplementsImportedInterface.js b/tests/baselines/reference/classImplementsImportedInterface.js
index 1fd42ebc163df..d0ad42be777aa 100644
--- a/tests/baselines/reference/classImplementsImportedInterface.js
+++ b/tests/baselines/reference/classImplementsImportedInterface.js
@@ -16,7 +16,7 @@ module M2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classOrder1.js b/tests/baselines/reference/classOrder1.js
index 9b8807a421c38..d03ff2de56684 100644
--- a/tests/baselines/reference/classOrder1.js
+++ b/tests/baselines/reference/classOrder1.js
@@ -15,7 +15,7 @@ a.foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classOrder2.js b/tests/baselines/reference/classOrder2.js
index be1b21cca5f6b..cb5856b64b07f 100644
--- a/tests/baselines/reference/classOrder2.js
+++ b/tests/baselines/reference/classOrder2.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classPropertyAsPrivate.js b/tests/baselines/reference/classPropertyAsPrivate.js
index 0420dfc2e65e6..b12c9dfb25365 100644
--- a/tests/baselines/reference/classPropertyAsPrivate.js
+++ b/tests/baselines/reference/classPropertyAsPrivate.js
@@ -27,7 +27,7 @@ C.foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classPropertyAsProtected.js b/tests/baselines/reference/classPropertyAsProtected.js
index f5d0549d55a69..e6cb8b0df439a 100644
--- a/tests/baselines/reference/classPropertyAsProtected.js
+++ b/tests/baselines/reference/classPropertyAsProtected.js
@@ -27,7 +27,7 @@ C.foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classPropertyIsPublicByDefault.js b/tests/baselines/reference/classPropertyIsPublicByDefault.js
index 0e4b5bdc6d214..4c90e850d6b5f 100644
--- a/tests/baselines/reference/classPropertyIsPublicByDefault.js
+++ b/tests/baselines/reference/classPropertyIsPublicByDefault.js
@@ -26,7 +26,7 @@ C.foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classSideInheritance1.js b/tests/baselines/reference/classSideInheritance1.js
index 783ea6a9c7fef..14dd830854241 100644
--- a/tests/baselines/reference/classSideInheritance1.js
+++ b/tests/baselines/reference/classSideInheritance1.js
@@ -19,7 +19,7 @@ C2.bar(); // valid
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classSideInheritance2.js b/tests/baselines/reference/classSideInheritance2.js
index 49304de2dac76..a2ba7953a489d 100644
--- a/tests/baselines/reference/classSideInheritance2.js
+++ b/tests/baselines/reference/classSideInheritance2.js
@@ -34,7 +34,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classWithDuplicateIdentifier.js b/tests/baselines/reference/classWithDuplicateIdentifier.js
index 28d5d9ab917a9..98591f5874106 100644
--- a/tests/baselines/reference/classWithDuplicateIdentifier.js
+++ b/tests/baselines/reference/classWithDuplicateIdentifier.js
@@ -17,7 +17,7 @@ class D {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classWithMultipleBaseClasses.js b/tests/baselines/reference/classWithMultipleBaseClasses.js
index 67e782141b8e6..55f17c46a48a9 100644
--- a/tests/baselines/reference/classWithMultipleBaseClasses.js
+++ b/tests/baselines/reference/classWithMultipleBaseClasses.js
@@ -28,7 +28,7 @@ interface I extends A, B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface.js b/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface.js
index a70ed7e2fb744..233d4c7a9ae99 100644
--- a/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface.js
+++ b/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface.js
@@ -30,7 +30,7 @@ i = c;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface2.js b/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface2.js
index 3b7f48fbf66f5..f358a3f3b96b7 100644
--- a/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface2.js
+++ b/tests/baselines/reference/classWithOnlyPublicMembersEquivalentToInterface2.js
@@ -32,7 +32,7 @@ i = c;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classWithOptionalParameter.js b/tests/baselines/reference/classWithOptionalParameter.js
index 1247164480138..d120aadc52205 100644
--- a/tests/baselines/reference/classWithOptionalParameter.js
+++ b/tests/baselines/reference/classWithOptionalParameter.js
@@ -16,7 +16,7 @@ class C2<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classWithOverloadImplementationOfWrongName.js b/tests/baselines/reference/classWithOverloadImplementationOfWrongName.js
index 95d3ed4e17872..6b5ecf0075f26 100644
--- a/tests/baselines/reference/classWithOverloadImplementationOfWrongName.js
+++ b/tests/baselines/reference/classWithOverloadImplementationOfWrongName.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classWithOverloadImplementationOfWrongName2.js b/tests/baselines/reference/classWithOverloadImplementationOfWrongName2.js
index 45cd55a779a30..14282ca062a91 100644
--- a/tests/baselines/reference/classWithOverloadImplementationOfWrongName2.js
+++ b/tests/baselines/reference/classWithOverloadImplementationOfWrongName2.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classWithPrivateProperty.js b/tests/baselines/reference/classWithPrivateProperty.js
index eb0b0f30c2570..93d742ec3a9b3 100644
--- a/tests/baselines/reference/classWithPrivateProperty.js
+++ b/tests/baselines/reference/classWithPrivateProperty.js
@@ -27,7 +27,7 @@ var r8: string = C.g();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classWithProtectedProperty.js b/tests/baselines/reference/classWithProtectedProperty.js
index 98c92cd3d6142..fbacfe6b634ee 100644
--- a/tests/baselines/reference/classWithProtectedProperty.js
+++ b/tests/baselines/reference/classWithProtectedProperty.js
@@ -32,7 +32,7 @@ class D extends C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classWithPublicProperty.js b/tests/baselines/reference/classWithPublicProperty.js
index 4590324930e57..457afdcb2cc38 100644
--- a/tests/baselines/reference/classWithPublicProperty.js
+++ b/tests/baselines/reference/classWithPublicProperty.js
@@ -25,7 +25,7 @@ var r8: string = C.g();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/classdecl.js b/tests/baselines/reference/classdecl.js
index 632553c70c831..d408cfc86ce74 100644
--- a/tests/baselines/reference/classdecl.js
+++ b/tests/baselines/reference/classdecl.js
@@ -97,7 +97,7 @@ class e {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/cloduleAcrossModuleDefinitions.js b/tests/baselines/reference/cloduleAcrossModuleDefinitions.js
index 0398b28611776..44d3d307d3e27 100644
--- a/tests/baselines/reference/cloduleAcrossModuleDefinitions.js
+++ b/tests/baselines/reference/cloduleAcrossModuleDefinitions.js
@@ -19,7 +19,7 @@ var b: A.B; // ok
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionArgumentsClassMethod.js b/tests/baselines/reference/collisionArgumentsClassMethod.js
index 56bbd852ca4e2..4037552a2d346 100644
--- a/tests/baselines/reference/collisionArgumentsClassMethod.js
+++ b/tests/baselines/reference/collisionArgumentsClassMethod.js
@@ -52,7 +52,7 @@ class c3 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionCodeGenModuleWithMethodChildren.js b/tests/baselines/reference/collisionCodeGenModuleWithMethodChildren.js
index f844db00c0df0..adbc7cbf115bd 100644
--- a/tests/baselines/reference/collisionCodeGenModuleWithMethodChildren.js
+++ b/tests/baselines/reference/collisionCodeGenModuleWithMethodChildren.js
@@ -36,7 +36,7 @@ module M { // Shouldnt bn _M
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionRestParameterClassMethod.js b/tests/baselines/reference/collisionRestParameterClassMethod.js
index 3aab32fe5a3c7..3918bca3fe4aa 100644
--- a/tests/baselines/reference/collisionRestParameterClassMethod.js
+++ b/tests/baselines/reference/collisionRestParameterClassMethod.js
@@ -42,7 +42,7 @@ class c3 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js b/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js
index 7a2c8cc6c578f..5915b5d2eda03 100644
--- a/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js
+++ b/tests/baselines/reference/collisionSuperAndLocalFunctionInMethod.js
@@ -32,7 +32,7 @@ class c extends Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js b/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js
index c567ac3d5b901..34ae153b8076d 100644
--- a/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js
+++ b/tests/baselines/reference/collisionSuperAndLocalVarInMethod.js
@@ -22,7 +22,7 @@ class c extends Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionSuperAndNameResolution.js b/tests/baselines/reference/collisionSuperAndNameResolution.js
index 39fe45fe6ddcc..1394b5a0f42bb 100644
--- a/tests/baselines/reference/collisionSuperAndNameResolution.js
+++ b/tests/baselines/reference/collisionSuperAndNameResolution.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionSuperAndParameter.js b/tests/baselines/reference/collisionSuperAndParameter.js
index 4340022352c18..3580fd527a48f 100644
--- a/tests/baselines/reference/collisionSuperAndParameter.js
+++ b/tests/baselines/reference/collisionSuperAndParameter.js
@@ -66,7 +66,7 @@ class Foo4 extends Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionSuperAndParameter1.js b/tests/baselines/reference/collisionSuperAndParameter1.js
index c36e2f1ddb585..4877cdff4d277 100644
--- a/tests/baselines/reference/collisionSuperAndParameter1.js
+++ b/tests/baselines/reference/collisionSuperAndParameter1.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionThisExpressionAndLocalVarInMethod.js b/tests/baselines/reference/collisionThisExpressionAndLocalVarInMethod.js
index 560bb4293e516..98e3160ebba2f 100644
--- a/tests/baselines/reference/collisionThisExpressionAndLocalVarInMethod.js
+++ b/tests/baselines/reference/collisionThisExpressionAndLocalVarInMethod.js
@@ -22,7 +22,7 @@ class a {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js b/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js
index 90eff4333f1e8..7a92dab3c4090 100644
--- a/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js
+++ b/tests/baselines/reference/collisionThisExpressionAndLocalVarWithSuperExperssion.js
@@ -22,7 +22,7 @@ class b2 extends a {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionThisExpressionAndNameResolution.js b/tests/baselines/reference/collisionThisExpressionAndNameResolution.js
index 1ba2a0c4bb425..af4ba2408663f 100644
--- a/tests/baselines/reference/collisionThisExpressionAndNameResolution.js
+++ b/tests/baselines/reference/collisionThisExpressionAndNameResolution.js
@@ -16,7 +16,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/collisionThisExpressionAndParameter.js b/tests/baselines/reference/collisionThisExpressionAndParameter.js
index a5047243da710..11d4b79ac908b 100644
--- a/tests/baselines/reference/collisionThisExpressionAndParameter.js
+++ b/tests/baselines/reference/collisionThisExpressionAndParameter.js
@@ -97,7 +97,7 @@ declare function f4(_this: string); // no code gen - no error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/commentOnClassMethod1.js b/tests/baselines/reference/commentOnClassMethod1.js
index ff958b769826b..60e5d1f7ed8ef 100644
--- a/tests/baselines/reference/commentOnClassMethod1.js
+++ b/tests/baselines/reference/commentOnClassMethod1.js
@@ -11,7 +11,7 @@ class WebControls {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/commentOnSignature1.js b/tests/baselines/reference/commentOnSignature1.js
index e281f8f660383..50319c90bde00 100644
--- a/tests/baselines/reference/commentOnSignature1.js
+++ b/tests/baselines/reference/commentOnSignature1.js
@@ -45,7 +45,7 @@ function foo2(a: any): void {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/commentsClassMembers.js b/tests/baselines/reference/commentsClassMembers.js
index 43f5758b96cc2..129200add3759 100644
--- a/tests/baselines/reference/commentsClassMembers.js
+++ b/tests/baselines/reference/commentsClassMembers.js
@@ -221,7 +221,7 @@ cProperties_i.nc_p2 = cProperties_i.nc_p1;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/commentsInheritance.js b/tests/baselines/reference/commentsInheritance.js
index b088a6b08fdc4..307486381b92b 100644
--- a/tests/baselines/reference/commentsInheritance.js
+++ b/tests/baselines/reference/commentsInheritance.js
@@ -154,7 +154,7 @@ i2_i = i3_i;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/commentsOverloads.js b/tests/baselines/reference/commentsOverloads.js
index c4a72f0cbfd97..9d6b89062d0e8 100644
--- a/tests/baselines/reference/commentsOverloads.js
+++ b/tests/baselines/reference/commentsOverloads.js
@@ -178,7 +178,7 @@ var c5_i_2 = new c5("hello");
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/commentsTypeParameters.js b/tests/baselines/reference/commentsTypeParameters.js
index c77583e3787bc..574306851bb71 100644
--- a/tests/baselines/reference/commentsTypeParameters.js
+++ b/tests/baselines/reference/commentsTypeParameters.js
@@ -19,7 +19,7 @@ function compare</**type*/T>(a: T, b: T) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/commentsdoNotEmitComments.js b/tests/baselines/reference/commentsdoNotEmitComments.js
index ead5b5bc925f8..fc223c8e5d2a6 100644
--- a/tests/baselines/reference/commentsdoNotEmitComments.js
+++ b/tests/baselines/reference/commentsdoNotEmitComments.js
@@ -96,7 +96,7 @@ var shade: color = color.green;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/commentsemitComments.js b/tests/baselines/reference/commentsemitComments.js
index 850ed9c226bac..4c6318f668431 100644
--- a/tests/baselines/reference/commentsemitComments.js
+++ b/tests/baselines/reference/commentsemitComments.js
@@ -91,7 +91,7 @@ declare var x;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js b/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js
index a02c8278ed2a9..3c9efa107bfa4 100644
--- a/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js
+++ b/tests/baselines/reference/comparisonOperatorWithIdenticalObjects.js
@@ -198,7 +198,7 @@ var r8b7 = b6 !== a6;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/complexClassRelationships.js b/tests/baselines/reference/complexClassRelationships.js
index 8732e7863060a..a891fb8a5f1a0 100644
--- a/tests/baselines/reference/complexClassRelationships.js
+++ b/tests/baselines/reference/complexClassRelationships.js
@@ -61,7 +61,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/complexNarrowingWithAny.js b/tests/baselines/reference/complexNarrowingWithAny.js
index bac4d0363e2b3..108358b3896b3 100644
--- a/tests/baselines/reference/complexNarrowingWithAny.js
+++ b/tests/baselines/reference/complexNarrowingWithAny.js
@@ -565,7 +565,7 @@ export function viewFactory_AppComponent0(viewUtils:any,parentInjector:any,decla
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/complicatedPrivacy.js b/tests/baselines/reference/complicatedPrivacy.js
index 9a36ad1589605..52b1fb3061229 100644
--- a/tests/baselines/reference/complicatedPrivacy.js
+++ b/tests/baselines/reference/complicatedPrivacy.js
@@ -108,7 +108,7 @@ module mglo5 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/compoundAssignmentLHSIsValue.js b/tests/baselines/reference/compoundAssignmentLHSIsValue.js
index 5623081a1358b..7596febf6047d 100644
--- a/tests/baselines/reference/compoundAssignmentLHSIsValue.js
+++ b/tests/baselines/reference/compoundAssignmentLHSIsValue.js
@@ -126,7 +126,7 @@ foo() += value;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js b/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js
index ca2459a23e727..d8b7a70fced3e 100644
--- a/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js
+++ b/tests/baselines/reference/compoundExponentiationAssignmentLHSIsValue.js
@@ -89,7 +89,7 @@ foo() **= value;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames10_ES5.js b/tests/baselines/reference/computedPropertyNames10_ES5.js
index af70c23380470..3f26a5f866ec6 100644
--- a/tests/baselines/reference/computedPropertyNames10_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames10_ES5.js
@@ -20,7 +20,7 @@ var v = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames13_ES5.js b/tests/baselines/reference/computedPropertyNames13_ES5.js
index a3a1e6cc7790d..d5bbf58f9ba1a 100644
--- a/tests/baselines/reference/computedPropertyNames13_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames13_ES5.js
@@ -20,7 +20,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames14_ES5.js b/tests/baselines/reference/computedPropertyNames14_ES5.js
index cb460e507a3df..4485487b9d05a 100644
--- a/tests/baselines/reference/computedPropertyNames14_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames14_ES5.js
@@ -13,7 +13,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames15_ES5.js b/tests/baselines/reference/computedPropertyNames15_ES5.js
index f6cdaf4abce01..6da02707cc2a0 100644
--- a/tests/baselines/reference/computedPropertyNames15_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames15_ES5.js
@@ -12,7 +12,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames21_ES5.js b/tests/baselines/reference/computedPropertyNames21_ES5.js
index 366b06bf9ce66..6652e2b08d3f0 100644
--- a/tests/baselines/reference/computedPropertyNames21_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames21_ES5.js
@@ -10,7 +10,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames22_ES5.js b/tests/baselines/reference/computedPropertyNames22_ES5.js
index fbfaf84111e3d..2d4c44b30bc44 100644
--- a/tests/baselines/reference/computedPropertyNames22_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames22_ES5.js
@@ -12,7 +12,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames23_ES5.js b/tests/baselines/reference/computedPropertyNames23_ES5.js
index f640239062130..8f26305f05bca 100644
--- a/tests/baselines/reference/computedPropertyNames23_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames23_ES5.js
@@ -12,7 +12,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames24_ES5.js b/tests/baselines/reference/computedPropertyNames24_ES5.js
index af40d6584858c..9953be8fc6ef8 100644
--- a/tests/baselines/reference/computedPropertyNames24_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames24_ES5.js
@@ -12,7 +12,7 @@ class C extends Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames25_ES5.js b/tests/baselines/reference/computedPropertyNames25_ES5.js
index 7dd0db2b6bb0e..ec13f55ecfc2e 100644
--- a/tests/baselines/reference/computedPropertyNames25_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames25_ES5.js
@@ -17,7 +17,7 @@ class C extends Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames26_ES5.js b/tests/baselines/reference/computedPropertyNames26_ES5.js
index 7fe8eea00c281..cfcd0f8dd3070 100644
--- a/tests/baselines/reference/computedPropertyNames26_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames26_ES5.js
@@ -14,7 +14,7 @@ class C extends Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames27_ES5.js b/tests/baselines/reference/computedPropertyNames27_ES5.js
index 6c68f6ee19bdd..5ba407d17e8d4 100644
--- a/tests/baselines/reference/computedPropertyNames27_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames27_ES5.js
@@ -19,7 +19,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames28_ES5.js b/tests/baselines/reference/computedPropertyNames28_ES5.js
index a801e9b536b86..31a3d61099b4e 100644
--- a/tests/baselines/reference/computedPropertyNames28_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames28_ES5.js
@@ -24,7 +24,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames29_ES5.js b/tests/baselines/reference/computedPropertyNames29_ES5.js
index 3bd4238d16673..df2b9f9fde077 100644
--- a/tests/baselines/reference/computedPropertyNames29_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames29_ES5.js
@@ -14,7 +14,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames2_ES5.js b/tests/baselines/reference/computedPropertyNames2_ES5.js
index 4744a6c5175bc..bde281f68319b 100644
--- a/tests/baselines/reference/computedPropertyNames2_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames2_ES5.js
@@ -14,7 +14,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames30_ES5.js b/tests/baselines/reference/computedPropertyNames30_ES5.js
index 24741b44de518..bf5a1548820f0 100644
--- a/tests/baselines/reference/computedPropertyNames30_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames30_ES5.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames31_ES5.js b/tests/baselines/reference/computedPropertyNames31_ES5.js
index 2b0af1b947122..1aba8200ed237 100644
--- a/tests/baselines/reference/computedPropertyNames31_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames31_ES5.js
@@ -19,7 +19,7 @@ class C extends Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames32_ES5.js b/tests/baselines/reference/computedPropertyNames32_ES5.js
index 2f109349d50a5..43005920bdcd7 100644
--- a/tests/baselines/reference/computedPropertyNames32_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames32_ES5.js
@@ -11,7 +11,7 @@ class C<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames33_ES5.js b/tests/baselines/reference/computedPropertyNames33_ES5.js
index 9babd055223a1..1a42f9c195500 100644
--- a/tests/baselines/reference/computedPropertyNames33_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames33_ES5.js
@@ -13,7 +13,7 @@ class C<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames34_ES5.js b/tests/baselines/reference/computedPropertyNames34_ES5.js
index 0caee13fdde61..f39cf2a6f8310 100644
--- a/tests/baselines/reference/computedPropertyNames34_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames34_ES5.js
@@ -13,7 +13,7 @@ class C<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames3_ES5.js b/tests/baselines/reference/computedPropertyNames3_ES5.js
index ae85b07a974e6..e0c3fa7d930c4 100644
--- a/tests/baselines/reference/computedPropertyNames3_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames3_ES5.js
@@ -13,7 +13,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNames40_ES5.js b/tests/baselines/reference/computedPropertyNames40_ES5.js
index 1c08223b610a2..407f084d9b05a 100644
--- a/tests/baselines/reference/computedPropertyNames40_ES5.js
+++ b/tests/baselines/reference/computedPropertyNames40_ES5.js
@@ -14,7 +14,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNamesContextualType1_ES5.js b/tests/baselines/reference/computedPropertyNamesContextualType1_ES5.js
index 0059503531577..12488af98199f 100644
--- a/tests/baselines/reference/computedPropertyNamesContextualType1_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesContextualType1_ES5.js
@@ -13,7 +13,7 @@ var o: I = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNamesContextualType2_ES5.js b/tests/baselines/reference/computedPropertyNamesContextualType2_ES5.js
index b1d59f8f30b4a..6d0836e061e4e 100644
--- a/tests/baselines/reference/computedPropertyNamesContextualType2_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesContextualType2_ES5.js
@@ -13,7 +13,7 @@ var o: I = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNamesContextualType3_ES5.js b/tests/baselines/reference/computedPropertyNamesContextualType3_ES5.js
index b2e2d969e993e..dfeb0da718150 100644
--- a/tests/baselines/reference/computedPropertyNamesContextualType3_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesContextualType3_ES5.js
@@ -12,7 +12,7 @@ var o: I = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNamesDeclarationEmit1_ES5.js b/tests/baselines/reference/computedPropertyNamesDeclarationEmit1_ES5.js
index af44f1aa05bcf..f224cf5cf2104 100644
--- a/tests/baselines/reference/computedPropertyNamesDeclarationEmit1_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesDeclarationEmit1_ES5.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNamesDeclarationEmit5_ES5.js b/tests/baselines/reference/computedPropertyNamesDeclarationEmit5_ES5.js
index c41f85fad4f45..f859fd16eddbb 100644
--- a/tests/baselines/reference/computedPropertyNamesDeclarationEmit5_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesDeclarationEmit5_ES5.js
@@ -10,7 +10,7 @@ var v = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNamesOnOverloads_ES5.js b/tests/baselines/reference/computedPropertyNamesOnOverloads_ES5.js
index fdfba4a8e701b..d89c1a34ed68e 100644
--- a/tests/baselines/reference/computedPropertyNamesOnOverloads_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesOnOverloads_ES5.js
@@ -11,7 +11,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js b/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js
index d5b036de58465..a56d7f5c06747 100644
--- a/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.js
@@ -12,7 +12,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.sourcemap.txt b/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.sourcemap.txt
index 219efededfb2f..a4098b5eb43a3 100644
--- a/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.sourcemap.txt
+++ b/tests/baselines/reference/computedPropertyNamesSourceMap1_ES5.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:computedPropertyNamesSourceMap1_ES5.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js b/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js
index 152418521d9ae..7b7c4747c8514 100644
--- a/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js
+++ b/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.js
@@ -12,7 +12,7 @@ var v = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.sourcemap.txt b/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.sourcemap.txt
index 2c5eb32d0b181..3e1278b8b78ba 100644
--- a/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.sourcemap.txt
+++ b/tests/baselines/reference/computedPropertyNamesSourceMap2_ES5.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:computedPropertyNamesSourceMap2_ES5.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/conflictMarkerDiff3Trivia2.js b/tests/baselines/reference/conflictMarkerDiff3Trivia2.js
index 6119862eb7ee2..fb5646d340fd7 100644
--- a/tests/baselines/reference/conflictMarkerDiff3Trivia2.js
+++ b/tests/baselines/reference/conflictMarkerDiff3Trivia2.js
@@ -20,7 +20,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/conflictMarkerTrivia2.js b/tests/baselines/reference/conflictMarkerTrivia2.js
index 6af12c6af847c..4b857f45c3e5d 100644
--- a/tests/baselines/reference/conflictMarkerTrivia2.js
+++ b/tests/baselines/reference/conflictMarkerTrivia2.js
@@ -17,7 +17,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/constantOverloadFunction.js b/tests/baselines/reference/constantOverloadFunction.js
index 46b87c957f5be..53103b43a5fc8 100644
--- a/tests/baselines/reference/constantOverloadFunction.js
+++ b/tests/baselines/reference/constantOverloadFunction.js
@@ -17,7 +17,7 @@ function foo(tagName: any): Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js b/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js
index 6d9a2ccf9901a..25d136bfb6d92 100644
--- a/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js
+++ b/tests/baselines/reference/constantOverloadFunctionNoSubtypeError.js
@@ -18,7 +18,7 @@ function foo(tagName: any): Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js b/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js
index a583aad5cac6e..913812b972c0a 100644
--- a/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js
+++ b/tests/baselines/reference/constraintCheckInGenericBaseTypeReference.js
@@ -23,7 +23,7 @@ class Container {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/constructorOverloads1.js b/tests/baselines/reference/constructorOverloads1.js
index d2bc81a0506a4..d654c14fd2aa8 100644
--- a/tests/baselines/reference/constructorOverloads1.js
+++ b/tests/baselines/reference/constructorOverloads1.js
@@ -25,7 +25,7 @@ f1.bar2();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/constructorOverloads2.js b/tests/baselines/reference/constructorOverloads2.js
index 482af5b193487..1629273ebf0b1 100644
--- a/tests/baselines/reference/constructorOverloads2.js
+++ b/tests/baselines/reference/constructorOverloads2.js
@@ -29,7 +29,7 @@ f1.bar1();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/constructorOverloads3.js b/tests/baselines/reference/constructorOverloads3.js
index 36dbd7bfae5b5..cacc56f8bbbd0 100644
--- a/tests/baselines/reference/constructorOverloads3.js
+++ b/tests/baselines/reference/constructorOverloads3.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/constructorReturnsInvalidType.js b/tests/baselines/reference/constructorReturnsInvalidType.js
index 0f6b1637482e6..947f8f3c81519 100644
--- a/tests/baselines/reference/constructorReturnsInvalidType.js
+++ b/tests/baselines/reference/constructorReturnsInvalidType.js
@@ -13,7 +13,7 @@ var x = new X();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js b/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js
index 88c7569c62d60..aa1d969336f6f 100644
--- a/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js
+++ b/tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js
@@ -283,7 +283,7 @@ TypeScriptAllInOne.Program.Main();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/contextualTypeAppliedToVarArgs.js b/tests/baselines/reference/contextualTypeAppliedToVarArgs.js
index 6738556dcde99..84e50203ba2d0 100644
--- a/tests/baselines/reference/contextualTypeAppliedToVarArgs.js
+++ b/tests/baselines/reference/contextualTypeAppliedToVarArgs.js
@@ -20,7 +20,7 @@ class Foo{
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/contextuallyTypedClassExpressionMethodDeclaration02.js b/tests/baselines/reference/contextuallyTypedClassExpressionMethodDeclaration02.js
index fc32a8fd12296..d9dd2ae27ab31 100644
--- a/tests/baselines/reference/contextuallyTypedClassExpressionMethodDeclaration02.js
+++ b/tests/baselines/reference/contextuallyTypedClassExpressionMethodDeclaration02.js
@@ -53,7 +53,7 @@ function getFoo3(): Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/controlFlowSuperPropertyAccess.js b/tests/baselines/reference/controlFlowSuperPropertyAccess.js
index 2776eeeee644b..b816d3813292a 100644
--- a/tests/baselines/reference/controlFlowSuperPropertyAccess.js
+++ b/tests/baselines/reference/controlFlowSuperPropertyAccess.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/crashInresolveReturnStatement.js b/tests/baselines/reference/crashInresolveReturnStatement.js
index 8607d636331d0..3fbb8ff30519a 100644
--- a/tests/baselines/reference/crashInresolveReturnStatement.js
+++ b/tests/baselines/reference/crashInresolveReturnStatement.js
@@ -22,7 +22,7 @@ class WITDialogs {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/crashIntypeCheckObjectCreationExpression.js b/tests/baselines/reference/crashIntypeCheckObjectCreationExpression.js
index 23649d763f64a..9619edcd7027e 100644
--- a/tests/baselines/reference/crashIntypeCheckObjectCreationExpression.js
+++ b/tests/baselines/reference/crashIntypeCheckObjectCreationExpression.js
@@ -12,7 +12,7 @@ export class BuildWorkspaceService {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/crashRegressionTest.js b/tests/baselines/reference/crashRegressionTest.js
index 17d491f70b049..b5bfaf9b4ff42 100644
--- a/tests/baselines/reference/crashRegressionTest.js
+++ b/tests/baselines/reference/crashRegressionTest.js
@@ -29,7 +29,7 @@ module MsPortal.Util.TemplateEngine {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declFileForClassWithMultipleBaseClasses.js b/tests/baselines/reference/declFileForClassWithMultipleBaseClasses.js
index f7b503b249fe0..ee73566b91aed 100644
--- a/tests/baselines/reference/declFileForClassWithMultipleBaseClasses.js
+++ b/tests/baselines/reference/declFileForClassWithMultipleBaseClasses.js
@@ -30,7 +30,7 @@ interface I extends A, B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declFileForClassWithPrivateOverloadedFunction.js b/tests/baselines/reference/declFileForClassWithPrivateOverloadedFunction.js
index 9bc132115ab65..a8c369b165eb8 100644
--- a/tests/baselines/reference/declFileForClassWithPrivateOverloadedFunction.js
+++ b/tests/baselines/reference/declFileForClassWithPrivateOverloadedFunction.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declFileForTypeParameters.js b/tests/baselines/reference/declFileForTypeParameters.js
index 01c3b75bce6c2..cfec464dac212 100644
--- a/tests/baselines/reference/declFileForTypeParameters.js
+++ b/tests/baselines/reference/declFileForTypeParameters.js
@@ -10,7 +10,7 @@ class C<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declFileMethods.js b/tests/baselines/reference/declFileMethods.js
index ad57603843b18..e132e26b16756 100644
--- a/tests/baselines/reference/declFileMethods.js
+++ b/tests/baselines/reference/declFileMethods.js
@@ -194,7 +194,7 @@ interface I2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -293,7 +293,7 @@ exports.c1 = c1;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declFilePrivateMethodOverloads.js b/tests/baselines/reference/declFilePrivateMethodOverloads.js
index d33fd007cf6ed..647246d3a9f29 100644
--- a/tests/baselines/reference/declFilePrivateMethodOverloads.js
+++ b/tests/baselines/reference/declFilePrivateMethodOverloads.js
@@ -26,7 +26,7 @@ declare class c2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declInput-2.js b/tests/baselines/reference/declInput-2.js
index 7682e2e040562..7514ca8323de0 100644
--- a/tests/baselines/reference/declInput-2.js
+++ b/tests/baselines/reference/declInput-2.js
@@ -25,7 +25,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declInput.js b/tests/baselines/reference/declInput.js
index b5de6f0b988ed..a7ab01745ffb8 100644
--- a/tests/baselines/reference/declInput.js
+++ b/tests/baselines/reference/declInput.js
@@ -14,7 +14,7 @@ class bar {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declInput3.js b/tests/baselines/reference/declInput3.js
index 409becec7b5d8..3485b34d77b33 100644
--- a/tests/baselines/reference/declInput3.js
+++ b/tests/baselines/reference/declInput3.js
@@ -14,7 +14,7 @@ class bar {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declInput4.js b/tests/baselines/reference/declInput4.js
index a7e2e53dcbd14..fc9552dc4c7c4 100644
--- a/tests/baselines/reference/declInput4.js
+++ b/tests/baselines/reference/declInput4.js
@@ -19,7 +19,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declarationEmitClassMemberNameConflict.js b/tests/baselines/reference/declarationEmitClassMemberNameConflict.js
index a40f4bf5a584f..7d2622f57c4b8 100644
--- a/tests/baselines/reference/declarationEmitClassMemberNameConflict.js
+++ b/tests/baselines/reference/declarationEmitClassMemberNameConflict.js
@@ -40,7 +40,7 @@ export class C4 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declarationEmitProtectedMembers.js b/tests/baselines/reference/declarationEmitProtectedMembers.js
index 6158ff50ca14e..6e4745e956130 100644
--- a/tests/baselines/reference/declarationEmitProtectedMembers.js
+++ b/tests/baselines/reference/declarationEmitProtectedMembers.js
@@ -53,7 +53,7 @@ class C4 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declarationEmitThisPredicates01.js b/tests/baselines/reference/declarationEmitThisPredicates01.js
index bc6aab26f7e06..aaf9f72f4cd2e 100644
--- a/tests/baselines/reference/declarationEmitThisPredicates01.js
+++ b/tests/baselines/reference/declarationEmitThisPredicates01.js
@@ -13,7 +13,7 @@ export class D extends C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js b/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js
index d398c181585d3..6036280052e9c 100644
--- a/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js
+++ b/tests/baselines/reference/declarationEmitThisPredicatesWithPrivateName01.js
@@ -13,7 +13,7 @@ class D extends C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declarationFiles.js b/tests/baselines/reference/declarationFiles.js
index 1b706a5c9b705..7fe3de30b798c 100644
--- a/tests/baselines/reference/declarationFiles.js
+++ b/tests/baselines/reference/declarationFiles.js
@@ -51,7 +51,7 @@ class C4 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declarationMerging1.js b/tests/baselines/reference/declarationMerging1.js
index 21cbc0d000560..2cbfb98c28784 100644
--- a/tests/baselines/reference/declarationMerging1.js
+++ b/tests/baselines/reference/declarationMerging1.js
@@ -15,7 +15,7 @@ interface A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/declarationMerging2.js b/tests/baselines/reference/declarationMerging2.js
index 586435bf50378..3d15510ca88ea 100644
--- a/tests/baselines/reference/declarationMerging2.js
+++ b/tests/baselines/reference/declarationMerging2.js
@@ -18,7 +18,7 @@ declare module "./a" {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorChecksFunctionBodies.js b/tests/baselines/reference/decoratorChecksFunctionBodies.js
index df4c2c873ae3a..a692be99b4c3f 100644
--- a/tests/baselines/reference/decoratorChecksFunctionBodies.js
+++ b/tests/baselines/reference/decoratorChecksFunctionBodies.js
@@ -18,7 +18,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorMetadata.js b/tests/baselines/reference/decoratorMetadata.js
index ec7d644f7ccf2..b3ca0131c2286 100644
--- a/tests/baselines/reference/decoratorMetadata.js
+++ b/tests/baselines/reference/decoratorMetadata.js
@@ -32,7 +32,7 @@ exports.default = Service;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorMetadataRestParameterWithImportedType.js b/tests/baselines/reference/decoratorMetadataRestParameterWithImportedType.js
index 1bf8673e1c403..7803c688f397a 100644
--- a/tests/baselines/reference/decoratorMetadataRestParameterWithImportedType.js
+++ b/tests/baselines/reference/decoratorMetadataRestParameterWithImportedType.js
@@ -71,7 +71,7 @@ exports.SomeClass2 = SomeClass2;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorOnClass9.js b/tests/baselines/reference/decoratorOnClass9.js
index a3146727a3479..2d5ec9f210cae 100644
--- a/tests/baselines/reference/decoratorOnClass9.js
+++ b/tests/baselines/reference/decoratorOnClass9.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorOnClassMethod1.js b/tests/baselines/reference/decoratorOnClassMethod1.js
index 61c37558a81f7..040b93fb16d46 100644
--- a/tests/baselines/reference/decoratorOnClassMethod1.js
+++ b/tests/baselines/reference/decoratorOnClassMethod1.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorOnClassMethod10.js b/tests/baselines/reference/decoratorOnClassMethod10.js
index 550ec8e67bbb9..1657da18b88be 100644
--- a/tests/baselines/reference/decoratorOnClassMethod10.js
+++ b/tests/baselines/reference/decoratorOnClassMethod10.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorOnClassMethod11.js b/tests/baselines/reference/decoratorOnClassMethod11.js
index 4f3fd9d1ea9b7..23bf66cd7ac72 100644
--- a/tests/baselines/reference/decoratorOnClassMethod11.js
+++ b/tests/baselines/reference/decoratorOnClassMethod11.js
@@ -12,7 +12,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorOnClassMethod12.js b/tests/baselines/reference/decoratorOnClassMethod12.js
index 1a3fce78c32a9..e882a1314af06 100644
--- a/tests/baselines/reference/decoratorOnClassMethod12.js
+++ b/tests/baselines/reference/decoratorOnClassMethod12.js
@@ -13,7 +13,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorOnClassMethod2.js b/tests/baselines/reference/decoratorOnClassMethod2.js
index 78395182d5843..db84d2638aa44 100644
--- a/tests/baselines/reference/decoratorOnClassMethod2.js
+++ b/tests/baselines/reference/decoratorOnClassMethod2.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorOnClassMethod3.js b/tests/baselines/reference/decoratorOnClassMethod3.js
index d692b49453849..1da1ad0605c07 100644
--- a/tests/baselines/reference/decoratorOnClassMethod3.js
+++ b/tests/baselines/reference/decoratorOnClassMethod3.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorOnClassMethod8.js b/tests/baselines/reference/decoratorOnClassMethod8.js
index e3c9382d43bef..820837de3ecbd 100644
--- a/tests/baselines/reference/decoratorOnClassMethod8.js
+++ b/tests/baselines/reference/decoratorOnClassMethod8.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorOnClassMethodOverload1.js b/tests/baselines/reference/decoratorOnClassMethodOverload1.js
index f904faf6b099a..3e9e94ec20416 100644
--- a/tests/baselines/reference/decoratorOnClassMethodOverload1.js
+++ b/tests/baselines/reference/decoratorOnClassMethodOverload1.js
@@ -11,7 +11,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorOnClassMethodOverload2.js b/tests/baselines/reference/decoratorOnClassMethodOverload2.js
index ccc1c4bf8b3bc..d2b36bd3f73a6 100644
--- a/tests/baselines/reference/decoratorOnClassMethodOverload2.js
+++ b/tests/baselines/reference/decoratorOnClassMethodOverload2.js
@@ -11,7 +11,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/decoratorOnClassMethodParameter1.js b/tests/baselines/reference/decoratorOnClassMethodParameter1.js
index d75b3d6d01d3f..5de11f915b719 100644
--- a/tests/baselines/reference/decoratorOnClassMethodParameter1.js
+++ b/tests/baselines/reference/decoratorOnClassMethodParameter1.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/defaultArgsInOverloads.js b/tests/baselines/reference/defaultArgsInOverloads.js
index e802062b17b5e..f9be54b989c77 100644
--- a/tests/baselines/reference/defaultArgsInOverloads.js
+++ b/tests/baselines/reference/defaultArgsInOverloads.js
@@ -23,7 +23,7 @@ var f: (a = 3) => number;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js
index b8fcab9401687..10804a6782b76 100644
--- a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js
+++ b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.js
@@ -37,7 +37,7 @@ class D extends C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt
index 12d005b9a5fa7..e4c76a0a74ce1 100644
--- a/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt
+++ b/tests/baselines/reference/derivedClassConstructorWithExplicitReturns01.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:derivedClassConstructorWithExplicitReturns01.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js b/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js
index 5fc6f693f2c4f..fdaf72f7d7b55 100644
--- a/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js
+++ b/tests/baselines/reference/derivedClassFunctionOverridesBaseClassAccessor.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassIncludesInheritedMembers.js b/tests/baselines/reference/derivedClassIncludesInheritedMembers.js
index 941eea28ed2f1..0b592d82a938b 100644
--- a/tests/baselines/reference/derivedClassIncludesInheritedMembers.js
+++ b/tests/baselines/reference/derivedClassIncludesInheritedMembers.js
@@ -44,7 +44,7 @@ var r8 = d2[1];
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js b/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js
index e9b0a050bee05..243bcc8673daa 100644
--- a/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js
+++ b/tests/baselines/reference/derivedClassOverridesPrivateFunction1.js
@@ -19,7 +19,7 @@ new DerivedClass();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassOverridesProtectedMembers.js b/tests/baselines/reference/derivedClassOverridesProtectedMembers.js
index afe13ab98b389..a29f77de19612 100644
--- a/tests/baselines/reference/derivedClassOverridesProtectedMembers.js
+++ b/tests/baselines/reference/derivedClassOverridesProtectedMembers.js
@@ -39,7 +39,7 @@ class Derived extends Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js b/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js
index 79642066777a5..de4780abeb601 100644
--- a/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js
+++ b/tests/baselines/reference/derivedClassOverridesProtectedMembers2.js
@@ -67,7 +67,7 @@ var r8 = d2[1];
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js b/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js
index e0d58d6683746..34fb92ef791e0 100644
--- a/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js
+++ b/tests/baselines/reference/derivedClassOverridesProtectedMembers3.js
@@ -74,7 +74,7 @@ class Derived10 extends Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassOverridesPublicMembers.js b/tests/baselines/reference/derivedClassOverridesPublicMembers.js
index 234e35958ce5c..c240f465531c1 100644
--- a/tests/baselines/reference/derivedClassOverridesPublicMembers.js
+++ b/tests/baselines/reference/derivedClassOverridesPublicMembers.js
@@ -66,7 +66,7 @@ var r8 = d2[1];
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js b/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js
index fc152c0b7c659..c5ebd6a9a1426 100644
--- a/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js
+++ b/tests/baselines/reference/derivedClassSuperCallsInNonConstructorMembers.js
@@ -46,7 +46,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassTransitivity.js b/tests/baselines/reference/derivedClassTransitivity.js
index 33aa61db48174..6bbccb2ca96d9 100644
--- a/tests/baselines/reference/derivedClassTransitivity.js
+++ b/tests/baselines/reference/derivedClassTransitivity.js
@@ -25,7 +25,7 @@ var r2 = e.foo('');
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassTransitivity2.js b/tests/baselines/reference/derivedClassTransitivity2.js
index 39a9d91866564..9d74b9963727c 100644
--- a/tests/baselines/reference/derivedClassTransitivity2.js
+++ b/tests/baselines/reference/derivedClassTransitivity2.js
@@ -25,7 +25,7 @@ var r2 = e.foo(1, '');
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassTransitivity3.js b/tests/baselines/reference/derivedClassTransitivity3.js
index 5b6f72f5eaeda..937750144eed7 100644
--- a/tests/baselines/reference/derivedClassTransitivity3.js
+++ b/tests/baselines/reference/derivedClassTransitivity3.js
@@ -25,7 +25,7 @@ var r2 = e.foo('', 1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassTransitivity4.js b/tests/baselines/reference/derivedClassTransitivity4.js
index 68162bb8a6324..8adcbc4b93c56 100644
--- a/tests/baselines/reference/derivedClassTransitivity4.js
+++ b/tests/baselines/reference/derivedClassTransitivity4.js
@@ -25,7 +25,7 @@ var r2 = e.foo('');
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassWithAny.js b/tests/baselines/reference/derivedClassWithAny.js
index 75dbf8c61c682..3f91b9a9dc0f4 100644
--- a/tests/baselines/reference/derivedClassWithAny.js
+++ b/tests/baselines/reference/derivedClassWithAny.js
@@ -63,7 +63,7 @@ var r = c.foo(); // e.foo would return string
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js
index 51b82b3f7848a..453117078c559 100644
--- a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js
+++ b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingProtectedInstance.js
@@ -25,7 +25,7 @@ class Derived extends Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js
index db82dcdc6da3e..14f1ad00c9324 100644
--- a/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js
+++ b/tests/baselines/reference/derivedClassWithPrivateInstanceShadowingPublicInstance.js
@@ -36,7 +36,7 @@ Derived.a = 2; // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedClasses.js b/tests/baselines/reference/derivedClasses.js
index 1631e9b97066a..e56622ec69eea 100644
--- a/tests/baselines/reference/derivedClasses.js
+++ b/tests/baselines/reference/derivedClasses.js
@@ -44,7 +44,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedGenericClassWithAny.js b/tests/baselines/reference/derivedGenericClassWithAny.js
index 7d352e5a571b3..32c44c1903d37 100644
--- a/tests/baselines/reference/derivedGenericClassWithAny.js
+++ b/tests/baselines/reference/derivedGenericClassWithAny.js
@@ -46,7 +46,7 @@ var r = c.foo(); // e.foo would return string
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js b/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js
index 0ef964991ef2a..9fa717e2c607d 100644
--- a/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js
+++ b/tests/baselines/reference/derivedTypeAccessesHiddenBaseCallViaSuperPropertyAccess.js
@@ -21,7 +21,7 @@ class Derived extends Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/derivedTypeCallingBaseImplWithOptionalParams.js b/tests/baselines/reference/derivedTypeCallingBaseImplWithOptionalParams.js
index 7981a31b3665e..13f44c0f4217c 100644
--- a/tests/baselines/reference/derivedTypeCallingBaseImplWithOptionalParams.js
+++ b/tests/baselines/reference/derivedTypeCallingBaseImplWithOptionalParams.js
@@ -17,7 +17,7 @@ y.myMethod(); // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/destructuringParameterDeclaration1ES5.js b/tests/baselines/reference/destructuringParameterDeclaration1ES5.js
index 79213b521ee4e..12e36a45937c3 100644
--- a/tests/baselines/reference/destructuringParameterDeclaration1ES5.js
+++ b/tests/baselines/reference/destructuringParameterDeclaration1ES5.js
@@ -104,7 +104,7 @@ function e5({x: [a, b, c]}: { x: [number, number, number] }) { }  // x has type
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/destructuringParameterDeclaration1ES5iterable.js b/tests/baselines/reference/destructuringParameterDeclaration1ES5iterable.js
index c30fbffb1114a..f74e7cd057233 100644
--- a/tests/baselines/reference/destructuringParameterDeclaration1ES5iterable.js
+++ b/tests/baselines/reference/destructuringParameterDeclaration1ES5iterable.js
@@ -104,7 +104,7 @@ function e5({x: [a, b, c]}: { x: [number, number, number] }) { }  // x has type
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/destructuringParameterDeclaration2.js b/tests/baselines/reference/destructuringParameterDeclaration2.js
index 5523945b259f4..241f7936b2313 100644
--- a/tests/baselines/reference/destructuringParameterDeclaration2.js
+++ b/tests/baselines/reference/destructuringParameterDeclaration2.js
@@ -75,7 +75,7 @@ function e0({x: [number, number, number]}) { }  // error, duplicate identifier;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/destructuringParameterProperties2.js b/tests/baselines/reference/destructuringParameterProperties2.js
index 31e41d091c932..4ab61a4fceb31 100644
--- a/tests/baselines/reference/destructuringParameterProperties2.js
+++ b/tests/baselines/reference/destructuringParameterProperties2.js
@@ -33,7 +33,7 @@ var [z_a, z_b, z_c] = [z.getA(), z.getB(), z.getC()];
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/destructuringParameterProperties3.js b/tests/baselines/reference/destructuringParameterProperties3.js
index 98284a97bc42e..e139b4e5755de 100644
--- a/tests/baselines/reference/destructuringParameterProperties3.js
+++ b/tests/baselines/reference/destructuringParameterProperties3.js
@@ -36,7 +36,7 @@ var [z_a, z_b, z_c] = [z.getA(), z.getB(), z.getC()];
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/detachedCommentAtStartOfFunctionBody1.js b/tests/baselines/reference/detachedCommentAtStartOfFunctionBody1.js
index 27926bb2b9dc0..a2eb2aaa6130a 100644
--- a/tests/baselines/reference/detachedCommentAtStartOfFunctionBody1.js
+++ b/tests/baselines/reference/detachedCommentAtStartOfFunctionBody1.js
@@ -12,7 +12,7 @@ class TestFile {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/detachedCommentAtStartOfFunctionBody2.js b/tests/baselines/reference/detachedCommentAtStartOfFunctionBody2.js
index 93358d1abfe0e..e3dcee50ec62d 100644
--- a/tests/baselines/reference/detachedCommentAtStartOfFunctionBody2.js
+++ b/tests/baselines/reference/detachedCommentAtStartOfFunctionBody2.js
@@ -13,7 +13,7 @@ class TestFile {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js b/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js
index 2a4b23bd30239..37081860619c8 100644
--- a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js
+++ b/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction1.js
@@ -14,7 +14,7 @@ class TestFile {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js b/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js
index 034674da0a97a..96ebcf9b2a76f 100644
--- a/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js
+++ b/tests/baselines/reference/detachedCommentAtStartOfLambdaFunction2.js
@@ -15,7 +15,7 @@ class TestFile {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNode.js b/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNode.js
index e16d8cc16240a..8b4358c936fd9 100644
--- a/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNode.js
+++ b/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNode.js
@@ -14,7 +14,7 @@ declare var OData: any;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNodets.js b/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNodets.js
index ff43f4a7ccd00..2248390d76bcc 100644
--- a/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNodets.js
+++ b/tests/baselines/reference/doNotEmitPinnedCommentOnNotEmittedNodets.js
@@ -12,7 +12,7 @@ declare var OData: any;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/dottedSymbolResolution1.js b/tests/baselines/reference/dottedSymbolResolution1.js
index 87a4bfe8fc7c7..bfc72f61e5634 100644
--- a/tests/baselines/reference/dottedSymbolResolution1.js
+++ b/tests/baselines/reference/dottedSymbolResolution1.js
@@ -29,7 +29,7 @@ function _setBarAndText(): void {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/downlevelLetConst16.js b/tests/baselines/reference/downlevelLetConst16.js
index 56f230b67e6ae..b0feb49cbf8d5 100644
--- a/tests/baselines/reference/downlevelLetConst16.js
+++ b/tests/baselines/reference/downlevelLetConst16.js
@@ -232,7 +232,7 @@ function foo12() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/duplicateClassElements.js b/tests/baselines/reference/duplicateClassElements.js
index 58727cb755053..32a03af4895aa 100644
--- a/tests/baselines/reference/duplicateClassElements.js
+++ b/tests/baselines/reference/duplicateClassElements.js
@@ -48,7 +48,7 @@ class a {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/duplicateLocalVariable1.js b/tests/baselines/reference/duplicateLocalVariable1.js
index f59969ed30f66..f5c02d5b35962 100644
--- a/tests/baselines/reference/duplicateLocalVariable1.js
+++ b/tests/baselines/reference/duplicateLocalVariable1.js
@@ -349,7 +349,7 @@ export var tests: TestRunner = (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/duplicateLocalVariable2.js b/tests/baselines/reference/duplicateLocalVariable2.js
index c5155b033a6e7..47cc3007106f5 100644
--- a/tests/baselines/reference/duplicateLocalVariable2.js
+++ b/tests/baselines/reference/duplicateLocalVariable2.js
@@ -39,7 +39,7 @@ export var tests: TestRunner = (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/duplicatePropertyNames.js b/tests/baselines/reference/duplicatePropertyNames.js
index db3ce57366b5a..757fd60aafbc1 100644
--- a/tests/baselines/reference/duplicatePropertyNames.js
+++ b/tests/baselines/reference/duplicatePropertyNames.js
@@ -53,7 +53,7 @@ var b = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/duplicateTypeParameters2.js b/tests/baselines/reference/duplicateTypeParameters2.js
index 50ec7c7c72f15..0678c513ccd1f 100644
--- a/tests/baselines/reference/duplicateTypeParameters2.js
+++ b/tests/baselines/reference/duplicateTypeParameters2.js
@@ -8,7 +8,7 @@ interface I<T extends A, T extends B> {}
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/duplicateVariablesByScope.js b/tests/baselines/reference/duplicateVariablesByScope.js
index 7e21154755551..9a80abc0452e8 100644
--- a/tests/baselines/reference/duplicateVariablesByScope.js
+++ b/tests/baselines/reference/duplicateVariablesByScope.js
@@ -36,7 +36,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/emitArrowFunctionWhenUsingArguments12.js b/tests/baselines/reference/emitArrowFunctionWhenUsingArguments12.js
index 53eff83d7448b..8f75db1289609 100644
--- a/tests/baselines/reference/emitArrowFunctionWhenUsingArguments12.js
+++ b/tests/baselines/reference/emitArrowFunctionWhenUsingArguments12.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/emitCapturingThisInTupleDestructuring2.js b/tests/baselines/reference/emitCapturingThisInTupleDestructuring2.js
index 9bac87c157d21..8e91cc34172a7 100644
--- a/tests/baselines/reference/emitCapturingThisInTupleDestructuring2.js
+++ b/tests/baselines/reference/emitCapturingThisInTupleDestructuring2.js
@@ -14,7 +14,7 @@ class B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/emitClassExpressionInDeclarationFile.js b/tests/baselines/reference/emitClassExpressionInDeclarationFile.js
index 4c937f4299377..d44d1aa68db7a 100644
--- a/tests/baselines/reference/emitClassExpressionInDeclarationFile.js
+++ b/tests/baselines/reference/emitClassExpressionInDeclarationFile.js
@@ -35,7 +35,7 @@ test.tags();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js b/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js
index e9ee74a63e62e..3559fcd242c6b 100644
--- a/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js
+++ b/tests/baselines/reference/emitClassExpressionInDeclarationFile2.js
@@ -34,7 +34,7 @@ test.tags();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/emitDecoratorMetadata_object.js b/tests/baselines/reference/emitDecoratorMetadata_object.js
index 7a3552f86ff68..2e9b165e19a9d 100644
--- a/tests/baselines/reference/emitDecoratorMetadata_object.js
+++ b/tests/baselines/reference/emitDecoratorMetadata_object.js
@@ -14,7 +14,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/emitDecoratorMetadata_restArgs.js b/tests/baselines/reference/emitDecoratorMetadata_restArgs.js
index 4c2aebbd23f64..eedff464cd124 100644
--- a/tests/baselines/reference/emitDecoratorMetadata_restArgs.js
+++ b/tests/baselines/reference/emitDecoratorMetadata_restArgs.js
@@ -21,7 +21,7 @@ class B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/emitDefaultParametersMethod.js b/tests/baselines/reference/emitDefaultParametersMethod.js
index 58a34d9509228..c25328e90bb6c 100644
--- a/tests/baselines/reference/emitDefaultParametersMethod.js
+++ b/tests/baselines/reference/emitDefaultParametersMethod.js
@@ -21,7 +21,7 @@ class E {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/emitMemberAccessExpression.js b/tests/baselines/reference/emitMemberAccessExpression.js
index d3a05ce0afb3b..ff283cdf80b0b 100644
--- a/tests/baselines/reference/emitMemberAccessExpression.js
+++ b/tests/baselines/reference/emitMemberAccessExpression.js
@@ -30,7 +30,7 @@ module Microsoft.PeopleAtWork.Model {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/emitRestParametersMethod.js b/tests/baselines/reference/emitRestParametersMethod.js
index 9cbffe48f0a26..a0e89134deba4 100644
--- a/tests/baselines/reference/emitRestParametersMethod.js
+++ b/tests/baselines/reference/emitRestParametersMethod.js
@@ -17,7 +17,7 @@ class D {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/emitThisInSuperMethodCall.js b/tests/baselines/reference/emitThisInSuperMethodCall.js
index 9a6984e704ac5..0c4e9c8ffb51a 100644
--- a/tests/baselines/reference/emitThisInSuperMethodCall.js
+++ b/tests/baselines/reference/emitThisInSuperMethodCall.js
@@ -31,7 +31,7 @@ class RegisteredUser extends User {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js b/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js
index 81b4109059d06..32feaf2fdf68e 100644
--- a/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js
+++ b/tests/baselines/reference/emitter.asyncGenerators.classMethods.es5.js
@@ -64,7 +64,7 @@ class C9 extends B9 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -131,7 +131,7 @@ var C1 = (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -204,7 +204,7 @@ var C2 = (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -277,7 +277,7 @@ var C3 = (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -371,7 +371,7 @@ var C4 = (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -472,7 +472,7 @@ var C5 = (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -545,7 +545,7 @@ var C6 = (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -612,7 +612,7 @@ var C7 = (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -682,7 +682,7 @@ var C8 = (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/errorRecoveryInClassDeclaration.js b/tests/baselines/reference/errorRecoveryInClassDeclaration.js
index 1c9a761269e87..334460d76d6a4 100644
--- a/tests/baselines/reference/errorRecoveryInClassDeclaration.js
+++ b/tests/baselines/reference/errorRecoveryInClassDeclaration.js
@@ -11,7 +11,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/errorSuperCalls.js b/tests/baselines/reference/errorSuperCalls.js
index e4e192ff77243..af47591d725f4 100644
--- a/tests/baselines/reference/errorSuperCalls.js
+++ b/tests/baselines/reference/errorSuperCalls.js
@@ -78,7 +78,7 @@ class OtherDerived extends OtherBase {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/errorSuperPropertyAccess.js b/tests/baselines/reference/errorSuperPropertyAccess.js
index 92cc81eed0baa..da850720a86f3 100644
--- a/tests/baselines/reference/errorSuperPropertyAccess.js
+++ b/tests/baselines/reference/errorSuperPropertyAccess.js
@@ -132,7 +132,7 @@ var obj = { n: super.wat, p: super.foo() };
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/errorsInGenericTypeReference.js b/tests/baselines/reference/errorsInGenericTypeReference.js
index a4a3e3d8f3c96..f9daaea58d05d 100644
--- a/tests/baselines/reference/errorsInGenericTypeReference.js
+++ b/tests/baselines/reference/errorsInGenericTypeReference.js
@@ -75,7 +75,7 @@ interface testInterface2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es3-amd.js b/tests/baselines/reference/es3-amd.js
index 4c68ada569bba..a348f8c3f11d4 100644
--- a/tests/baselines/reference/es3-amd.js
+++ b/tests/baselines/reference/es3-amd.js
@@ -16,7 +16,7 @@ class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es3-declaration-amd.js b/tests/baselines/reference/es3-declaration-amd.js
index 99814c9e3f9fd..a44d81a4998ae 100644
--- a/tests/baselines/reference/es3-declaration-amd.js
+++ b/tests/baselines/reference/es3-declaration-amd.js
@@ -16,7 +16,7 @@ class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es3-sourcemap-amd.js b/tests/baselines/reference/es3-sourcemap-amd.js
index ecf68f3c7e1ce..12d2291614eea 100644
--- a/tests/baselines/reference/es3-sourcemap-amd.js
+++ b/tests/baselines/reference/es3-sourcemap-amd.js
@@ -16,7 +16,7 @@ class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es3-sourcemap-amd.sourcemap.txt b/tests/baselines/reference/es3-sourcemap-amd.sourcemap.txt
index d7f6ca493ac07..1c091ba05646e 100644
--- a/tests/baselines/reference/es3-sourcemap-amd.sourcemap.txt
+++ b/tests/baselines/reference/es3-sourcemap-amd.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:es3-sourcemap-amd.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/es5-amd.js b/tests/baselines/reference/es5-amd.js
index 2620ba51f9eb6..e29defa1b820d 100644
--- a/tests/baselines/reference/es5-amd.js
+++ b/tests/baselines/reference/es5-amd.js
@@ -16,7 +16,7 @@ class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5-commonjs.js b/tests/baselines/reference/es5-commonjs.js
index f0024afbc9df7..912d28b5190c3 100644
--- a/tests/baselines/reference/es5-commonjs.js
+++ b/tests/baselines/reference/es5-commonjs.js
@@ -18,7 +18,7 @@ export default class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5-commonjs4.js b/tests/baselines/reference/es5-commonjs4.js
index 8615128f270b6..0872fa02cae3f 100644
--- a/tests/baselines/reference/es5-commonjs4.js
+++ b/tests/baselines/reference/es5-commonjs4.js
@@ -19,7 +19,7 @@ export var __esModule = 1;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5-declaration-amd.js b/tests/baselines/reference/es5-declaration-amd.js
index 8d08794b7cc87..41ac454c6c45d 100644
--- a/tests/baselines/reference/es5-declaration-amd.js
+++ b/tests/baselines/reference/es5-declaration-amd.js
@@ -16,7 +16,7 @@ class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5-souremap-amd.js b/tests/baselines/reference/es5-souremap-amd.js
index 988a5329aca38..8e1ec2c79920f 100644
--- a/tests/baselines/reference/es5-souremap-amd.js
+++ b/tests/baselines/reference/es5-souremap-amd.js
@@ -16,7 +16,7 @@ class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5-souremap-amd.sourcemap.txt b/tests/baselines/reference/es5-souremap-amd.sourcemap.txt
index 3166b74211c74..342bff7e959b2 100644
--- a/tests/baselines/reference/es5-souremap-amd.sourcemap.txt
+++ b/tests/baselines/reference/es5-souremap-amd.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:es5-souremap-amd.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/es5-system.js b/tests/baselines/reference/es5-system.js
index 8253b2391f0f9..31e41b38b8657 100644
--- a/tests/baselines/reference/es5-system.js
+++ b/tests/baselines/reference/es5-system.js
@@ -19,7 +19,7 @@ System.register([], function (exports_1, context_1) {
     var __names = (this && this.__names) || (function() {
         var name = Object.defineProperty ? (function(proto, name) {
             Object.defineProperty(proto[name], 'name', { 
-                value: name, configurable: true, writable: false, enumerable: false
+                value: name, configurable: true
             });
         }) : (function(proto, name) {
             proto[name].name = name;
diff --git a/tests/baselines/reference/es5-umd.js b/tests/baselines/reference/es5-umd.js
index 4ab99de13c111..fdf83f5b61eaa 100644
--- a/tests/baselines/reference/es5-umd.js
+++ b/tests/baselines/reference/es5-umd.js
@@ -17,7 +17,7 @@ class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5-umd2.js b/tests/baselines/reference/es5-umd2.js
index 491ff70fc3516..c7ec4137d8b9c 100644
--- a/tests/baselines/reference/es5-umd2.js
+++ b/tests/baselines/reference/es5-umd2.js
@@ -17,7 +17,7 @@ export class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5-umd3.js b/tests/baselines/reference/es5-umd3.js
index 23d83f18acb7d..4ee23abe43657 100644
--- a/tests/baselines/reference/es5-umd3.js
+++ b/tests/baselines/reference/es5-umd3.js
@@ -17,7 +17,7 @@ export default class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5-umd4.js b/tests/baselines/reference/es5-umd4.js
index 1872dbc3b1ebd..5e1871c6db941 100644
--- a/tests/baselines/reference/es5-umd4.js
+++ b/tests/baselines/reference/es5-umd4.js
@@ -19,7 +19,7 @@ export = A;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5ExportDefaultClassDeclaration.js b/tests/baselines/reference/es5ExportDefaultClassDeclaration.js
index ff3b48174024f..8df260d054b44 100644
--- a/tests/baselines/reference/es5ExportDefaultClassDeclaration.js
+++ b/tests/baselines/reference/es5ExportDefaultClassDeclaration.js
@@ -9,7 +9,7 @@ export default class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5ExportDefaultClassDeclaration2.js b/tests/baselines/reference/es5ExportDefaultClassDeclaration2.js
index 0ad182f670c7a..c3027509f8dc7 100644
--- a/tests/baselines/reference/es5ExportDefaultClassDeclaration2.js
+++ b/tests/baselines/reference/es5ExportDefaultClassDeclaration2.js
@@ -9,7 +9,7 @@ export default class {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5ExportDefaultClassDeclaration3.js b/tests/baselines/reference/es5ExportDefaultClassDeclaration3.js
index 3799302bc1a9d..73af83beea02a 100644
--- a/tests/baselines/reference/es5ExportDefaultClassDeclaration3.js
+++ b/tests/baselines/reference/es5ExportDefaultClassDeclaration3.js
@@ -18,7 +18,7 @@ var t: typeof C = C;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5ExportEqualsDts.js b/tests/baselines/reference/es5ExportEqualsDts.js
index 7160e9849ae03..34eb1e6368b46 100644
--- a/tests/baselines/reference/es5ExportEqualsDts.js
+++ b/tests/baselines/reference/es5ExportEqualsDts.js
@@ -17,7 +17,7 @@ export = A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5ModuleWithModuleGenAmd.js b/tests/baselines/reference/es5ModuleWithModuleGenAmd.js
index a8e01c9889484..6dfe80163b01a 100644
--- a/tests/baselines/reference/es5ModuleWithModuleGenAmd.js
+++ b/tests/baselines/reference/es5ModuleWithModuleGenAmd.js
@@ -15,7 +15,7 @@ export class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5ModuleWithModuleGenCommonjs.js b/tests/baselines/reference/es5ModuleWithModuleGenCommonjs.js
index c404174ff47e7..49d9f18593ad2 100644
--- a/tests/baselines/reference/es5ModuleWithModuleGenCommonjs.js
+++ b/tests/baselines/reference/es5ModuleWithModuleGenCommonjs.js
@@ -16,7 +16,7 @@ export class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5ModuleWithoutModuleGenTarget.js b/tests/baselines/reference/es5ModuleWithoutModuleGenTarget.js
index c5a273bb1a626..d2278ee986061 100644
--- a/tests/baselines/reference/es5ModuleWithoutModuleGenTarget.js
+++ b/tests/baselines/reference/es5ModuleWithoutModuleGenTarget.js
@@ -16,7 +16,7 @@ export class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es5andes6module.js b/tests/baselines/reference/es5andes6module.js
index 8cc74caacc73b..bfcf323c05e0b 100644
--- a/tests/baselines/reference/es5andes6module.js
+++ b/tests/baselines/reference/es5andes6module.js
@@ -17,7 +17,7 @@ export default class A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es6ClassTest.js b/tests/baselines/reference/es6ClassTest.js
index a2845ab2b77d2..6e306c9523d93 100644
--- a/tests/baselines/reference/es6ClassTest.js
+++ b/tests/baselines/reference/es6ClassTest.js
@@ -88,7 +88,7 @@ declare module AmbientMod {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es6ClassTest2.js b/tests/baselines/reference/es6ClassTest2.js
index bd2f40e2a631a..a78b6edd62aaa 100644
--- a/tests/baselines/reference/es6ClassTest2.js
+++ b/tests/baselines/reference/es6ClassTest2.js
@@ -162,7 +162,7 @@ var ccwc = new ChildClassWithoutConstructor(1, "s");
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es6ClassTest3.js b/tests/baselines/reference/es6ClassTest3.js
index de7c83e590ee4..583f74f727929 100644
--- a/tests/baselines/reference/es6ClassTest3.js
+++ b/tests/baselines/reference/es6ClassTest3.js
@@ -18,7 +18,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es6DeclOrdering.js b/tests/baselines/reference/es6DeclOrdering.js
index eb3ebce16f4bc..e751c1b71f0bc 100644
--- a/tests/baselines/reference/es6DeclOrdering.js
+++ b/tests/baselines/reference/es6DeclOrdering.js
@@ -20,7 +20,7 @@ class Bar {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es6MemberScoping.js b/tests/baselines/reference/es6MemberScoping.js
index 46966bf9d149d..4a7c129ffafc7 100644
--- a/tests/baselines/reference/es6MemberScoping.js
+++ b/tests/baselines/reference/es6MemberScoping.js
@@ -19,7 +19,7 @@ class Foo2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es6modulekindWithES5Target.js b/tests/baselines/reference/es6modulekindWithES5Target.js
index 8e8ace8a7146e..96591304880be 100644
--- a/tests/baselines/reference/es6modulekindWithES5Target.js
+++ b/tests/baselines/reference/es6modulekindWithES5Target.js
@@ -23,7 +23,7 @@ export {E};
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es6modulekindWithES5Target11.js b/tests/baselines/reference/es6modulekindWithES5Target11.js
index 7a1d5908897ca..7f36b5bb9272b 100644
--- a/tests/baselines/reference/es6modulekindWithES5Target11.js
+++ b/tests/baselines/reference/es6modulekindWithES5Target11.js
@@ -12,7 +12,7 @@ export default class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es6modulekindWithES5Target2.js b/tests/baselines/reference/es6modulekindWithES5Target2.js
index bf4537a66693e..596202dd78152 100644
--- a/tests/baselines/reference/es6modulekindWithES5Target2.js
+++ b/tests/baselines/reference/es6modulekindWithES5Target2.js
@@ -10,7 +10,7 @@ export default class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/es6modulekindWithES5Target3.js b/tests/baselines/reference/es6modulekindWithES5Target3.js
index c30069cfedd18..dc7fc0cb21a27 100644
--- a/tests/baselines/reference/es6modulekindWithES5Target3.js
+++ b/tests/baselines/reference/es6modulekindWithES5Target3.js
@@ -11,7 +11,7 @@ export default class D {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/escapedIdentifiers.js b/tests/baselines/reference/escapedIdentifiers.js
index f81e10040d8f7..1c59e66f2aeca 100644
--- a/tests/baselines/reference/escapedIdentifiers.js
+++ b/tests/baselines/reference/escapedIdentifiers.js
@@ -133,7 +133,7 @@ l\u0061bel4:
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/exportPrivateType.js b/tests/baselines/reference/exportPrivateType.js
index 96ced78ac85b3..03d60fd3fb94c 100644
--- a/tests/baselines/reference/exportPrivateType.js
+++ b/tests/baselines/reference/exportPrivateType.js
@@ -34,7 +34,7 @@ var y = foo.g; // Exported variable 'y' has or is using private type 'foo.C2'.
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/expressionTypeNodeShouldError.js b/tests/baselines/reference/expressionTypeNodeShouldError.js
index c4f9180eb733c..3a2465916f669 100644
--- a/tests/baselines/reference/expressionTypeNodeShouldError.js
+++ b/tests/baselines/reference/expressionTypeNodeShouldError.js
@@ -51,7 +51,7 @@ type ItemType3 = true.typeof(nodes.item(0));
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -78,7 +78,7 @@ typeof (nodes.item(0));
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -105,7 +105,7 @@ typeof (nodes.item(0));
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/extendAndImplementTheSameBaseType.js b/tests/baselines/reference/extendAndImplementTheSameBaseType.js
index 1a75cec7113bf..b4d9c046641ca 100644
--- a/tests/baselines/reference/extendAndImplementTheSameBaseType.js
+++ b/tests/baselines/reference/extendAndImplementTheSameBaseType.js
@@ -17,7 +17,7 @@ d.foo;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/extendAndImplementTheSameBaseType2.js b/tests/baselines/reference/extendAndImplementTheSameBaseType2.js
index eba1970df050a..c1fea12763255 100644
--- a/tests/baselines/reference/extendAndImplementTheSameBaseType2.js
+++ b/tests/baselines/reference/extendAndImplementTheSameBaseType2.js
@@ -20,7 +20,7 @@ var r4: number = d.bar();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/extendNonClassSymbol1.js b/tests/baselines/reference/extendNonClassSymbol1.js
index b0aee22cdfb6e..59d70f34a051a 100644
--- a/tests/baselines/reference/extendNonClassSymbol1.js
+++ b/tests/baselines/reference/extendNonClassSymbol1.js
@@ -7,7 +7,7 @@ class C extends x { } // error, could not find symbol xs
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/extendsClauseAlreadySeen.js b/tests/baselines/reference/extendsClauseAlreadySeen.js
index 3c4a9ea2b2f90..bd138bc6ecce7 100644
--- a/tests/baselines/reference/extendsClauseAlreadySeen.js
+++ b/tests/baselines/reference/extendsClauseAlreadySeen.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/extendsClauseAlreadySeen2.js b/tests/baselines/reference/extendsClauseAlreadySeen2.js
index d5ad5ba5a9883..a451cb4e10f2a 100644
--- a/tests/baselines/reference/extendsClauseAlreadySeen2.js
+++ b/tests/baselines/reference/extendsClauseAlreadySeen2.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/externalModuleQualification.js b/tests/baselines/reference/externalModuleQualification.js
index ca7d872918841..c736e277544ea 100644
--- a/tests/baselines/reference/externalModuleQualification.js
+++ b/tests/baselines/reference/externalModuleQualification.js
@@ -16,7 +16,7 @@ class NavigateAction {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/fatArrowSelf.js b/tests/baselines/reference/fatArrowSelf.js
index ca49966076eda..e6a096e209bfc 100644
--- a/tests/baselines/reference/fatArrowSelf.js
+++ b/tests/baselines/reference/fatArrowSelf.js
@@ -28,7 +28,7 @@ module Consumer {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/flowInFinally1.js b/tests/baselines/reference/flowInFinally1.js
index a01f5db7f507e..a8040e2676694 100644
--- a/tests/baselines/reference/flowInFinally1.js
+++ b/tests/baselines/reference/flowInFinally1.js
@@ -18,7 +18,7 @@ try {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/fluentClasses.js b/tests/baselines/reference/fluentClasses.js
index 72b4f8f1a425a..f3dcde7aec747 100644
--- a/tests/baselines/reference/fluentClasses.js
+++ b/tests/baselines/reference/fluentClasses.js
@@ -22,7 +22,7 @@ var z = c.foo().bar().baz();  // Fluent pattern
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/for-inStatements.js b/tests/baselines/reference/for-inStatements.js
index 29e87cef0ab86..0d9e9fe5d542d 100644
--- a/tests/baselines/reference/for-inStatements.js
+++ b/tests/baselines/reference/for-inStatements.js
@@ -84,7 +84,7 @@ for (var x in Color.Blue) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/for-inStatementsInvalid.js b/tests/baselines/reference/for-inStatementsInvalid.js
index a83897717f3c6..e23705ad28eb8 100644
--- a/tests/baselines/reference/for-inStatementsInvalid.js
+++ b/tests/baselines/reference/for-inStatementsInvalid.js
@@ -67,7 +67,7 @@ for (var x in i[42]) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/forwardRefInClassProperties.js b/tests/baselines/reference/forwardRefInClassProperties.js
index 50e4251023803..6f7ae2669782d 100644
--- a/tests/baselines/reference/forwardRefInClassProperties.js
+++ b/tests/baselines/reference/forwardRefInClassProperties.js
@@ -19,7 +19,7 @@ class Test
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/functionAndPropertyNameConflict.js b/tests/baselines/reference/functionAndPropertyNameConflict.js
index 707a0287fd07c..1176050e3a269 100644
--- a/tests/baselines/reference/functionAndPropertyNameConflict.js
+++ b/tests/baselines/reference/functionAndPropertyNameConflict.js
@@ -10,7 +10,7 @@ class C65 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/functionArgShadowing.js b/tests/baselines/reference/functionArgShadowing.js
index 8c2d0caf39f1a..13e2800685911 100644
--- a/tests/baselines/reference/functionArgShadowing.js
+++ b/tests/baselines/reference/functionArgShadowing.js
@@ -18,7 +18,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/functionExpressionContextualTyping1.js b/tests/baselines/reference/functionExpressionContextualTyping1.js
index 849611a002337..10d8249fd2c7f 100644
--- a/tests/baselines/reference/functionExpressionContextualTyping1.js
+++ b/tests/baselines/reference/functionExpressionContextualTyping1.js
@@ -62,7 +62,7 @@ class C<T, U> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/functionOverloadErrors.js b/tests/baselines/reference/functionOverloadErrors.js
index f6d100d8a705c..46599e909fdd3 100644
--- a/tests/baselines/reference/functionOverloadErrors.js
+++ b/tests/baselines/reference/functionOverloadErrors.js
@@ -122,7 +122,7 @@ function initExpr() { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/functionOverloads5.js b/tests/baselines/reference/functionOverloads5.js
index 0813b01dd6be3..0e8283eb4ff88 100644
--- a/tests/baselines/reference/functionOverloads5.js
+++ b/tests/baselines/reference/functionOverloads5.js
@@ -9,7 +9,7 @@ class baz {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/functionOverloads7.js b/tests/baselines/reference/functionOverloads7.js
index 96789228b511f..30df09a5adeac 100644
--- a/tests/baselines/reference/functionOverloads7.js
+++ b/tests/baselines/reference/functionOverloads7.js
@@ -14,7 +14,7 @@ class foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/functionOverloadsOutOfOrder.js b/tests/baselines/reference/functionOverloadsOutOfOrder.js
index a1390f72d5b78..46f77660bbdd4 100644
--- a/tests/baselines/reference/functionOverloadsOutOfOrder.js
+++ b/tests/baselines/reference/functionOverloadsOutOfOrder.js
@@ -19,7 +19,7 @@ class e {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/functionSubtypingOfVarArgs.js b/tests/baselines/reference/functionSubtypingOfVarArgs.js
index 9f6911f65f1d3..2b9b55d20fffe 100644
--- a/tests/baselines/reference/functionSubtypingOfVarArgs.js
+++ b/tests/baselines/reference/functionSubtypingOfVarArgs.js
@@ -18,7 +18,7 @@ class StringEvent extends EventBase { // should work
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/functionSubtypingOfVarArgs2.js b/tests/baselines/reference/functionSubtypingOfVarArgs2.js
index e1d89699ab9d5..b6d457d43540e 100644
--- a/tests/baselines/reference/functionSubtypingOfVarArgs2.js
+++ b/tests/baselines/reference/functionSubtypingOfVarArgs2.js
@@ -18,7 +18,7 @@ class StringEvent extends EventBase {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/functionWithSameNameAsField.js b/tests/baselines/reference/functionWithSameNameAsField.js
index 7a2d236d38af4..5511529a06fd3 100644
--- a/tests/baselines/reference/functionWithSameNameAsField.js
+++ b/tests/baselines/reference/functionWithSameNameAsField.js
@@ -12,7 +12,7 @@ class TestProgressBar {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/functionsInClassExpressions.js b/tests/baselines/reference/functionsInClassExpressions.js
index e2340728ee616..2459a7ed5ce5a 100644
--- a/tests/baselines/reference/functionsInClassExpressions.js
+++ b/tests/baselines/reference/functionsInClassExpressions.js
@@ -14,7 +14,7 @@ let Foo = class {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/fuzzy.js b/tests/baselines/reference/fuzzy.js
index 021a6366c4b59..9c65496462be4 100644
--- a/tests/baselines/reference/fuzzy.js
+++ b/tests/baselines/reference/fuzzy.js
@@ -34,7 +34,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericArrayWithoutTypeAnnotation.js b/tests/baselines/reference/genericArrayWithoutTypeAnnotation.js
index 534052822d084..a351e4ef3d359 100644
--- a/tests/baselines/reference/genericArrayWithoutTypeAnnotation.js
+++ b/tests/baselines/reference/genericArrayWithoutTypeAnnotation.js
@@ -11,7 +11,7 @@ class Bar {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericAssignmentCompatWithInterfaces1.js b/tests/baselines/reference/genericAssignmentCompatWithInterfaces1.js
index ead801fa484eb..5afc6d51b41bf 100644
--- a/tests/baselines/reference/genericAssignmentCompatWithInterfaces1.js
+++ b/tests/baselines/reference/genericAssignmentCompatWithInterfaces1.js
@@ -23,7 +23,7 @@ var a4: I<string> = <K<number>>z;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericBaseClassLiteralProperty.js b/tests/baselines/reference/genericBaseClassLiteralProperty.js
index 9381c836cafcb..5ebc07f7a512a 100644
--- a/tests/baselines/reference/genericBaseClassLiteralProperty.js
+++ b/tests/baselines/reference/genericBaseClassLiteralProperty.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericBaseClassLiteralProperty2.js b/tests/baselines/reference/genericBaseClassLiteralProperty2.js
index ee60e740e8baf..a2420e56f65d0 100644
--- a/tests/baselines/reference/genericBaseClassLiteralProperty2.js
+++ b/tests/baselines/reference/genericBaseClassLiteralProperty2.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericCallTypeArgumentInference.js b/tests/baselines/reference/genericCallTypeArgumentInference.js
index 9dd457b8a3359..3f0cacadec479 100644
--- a/tests/baselines/reference/genericCallTypeArgumentInference.js
+++ b/tests/baselines/reference/genericCallTypeArgumentInference.js
@@ -96,7 +96,7 @@ var r11 = i.foo8(); // {}
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js b/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js
index 46f8ae6b125e7..32745b06bc2e4 100644
--- a/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js
+++ b/tests/baselines/reference/genericCallWithConstraintsTypeArgumentInference.js
@@ -122,7 +122,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericCallWithFixedArguments.js b/tests/baselines/reference/genericCallWithFixedArguments.js
index 9667af15fc753..f8fcd24320819 100644
--- a/tests/baselines/reference/genericCallWithFixedArguments.js
+++ b/tests/baselines/reference/genericCallWithFixedArguments.js
@@ -11,7 +11,7 @@ g<A, B>(7) // the parameter list is fixed, so this should not error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericCallbacksAndClassHierarchy.js b/tests/baselines/reference/genericCallbacksAndClassHierarchy.js
index f86b54dd49e31..69a97a39a7c20 100644
--- a/tests/baselines/reference/genericCallbacksAndClassHierarchy.js
+++ b/tests/baselines/reference/genericCallbacksAndClassHierarchy.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js b/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js
index 39abba1d602dd..a81aeb6dd567f 100644
--- a/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js
+++ b/tests/baselines/reference/genericClassPropertyInheritanceSpecialization.js
@@ -79,7 +79,7 @@ class ViewModel<TValue> implements Contract<TValue> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericClassWithFunctionTypedMemberArguments.js b/tests/baselines/reference/genericClassWithFunctionTypedMemberArguments.js
index 5c056f6d635e5..13f1cb2d1eb59 100644
--- a/tests/baselines/reference/genericClassWithFunctionTypedMemberArguments.js
+++ b/tests/baselines/reference/genericClassWithFunctionTypedMemberArguments.js
@@ -70,7 +70,7 @@ module WithCandidates {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericClassWithObjectTypeArgsAndConstraints.js b/tests/baselines/reference/genericClassWithObjectTypeArgsAndConstraints.js
index 09598e634dda8..f7a5a76cb2680 100644
--- a/tests/baselines/reference/genericClassWithObjectTypeArgsAndConstraints.js
+++ b/tests/baselines/reference/genericClassWithObjectTypeArgsAndConstraints.js
@@ -66,7 +66,7 @@ module Interface {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericClassWithStaticFactory.js b/tests/baselines/reference/genericClassWithStaticFactory.js
index de507a4280da3..8f07588a73065 100644
--- a/tests/baselines/reference/genericClassWithStaticFactory.js
+++ b/tests/baselines/reference/genericClassWithStaticFactory.js
@@ -145,7 +145,7 @@ module Editor {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericClasses4.js b/tests/baselines/reference/genericClasses4.js
index 9322f68d0493d..a0681b234bbb1 100644
--- a/tests/baselines/reference/genericClasses4.js
+++ b/tests/baselines/reference/genericClasses4.js
@@ -21,7 +21,7 @@ class Vec2_T<A>
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericClassesInModule2.js b/tests/baselines/reference/genericClassesInModule2.js
index 36a0d4bcbff6d..54e7accc9aef3 100644
--- a/tests/baselines/reference/genericClassesInModule2.js
+++ b/tests/baselines/reference/genericClassesInModule2.js
@@ -24,7 +24,7 @@ export class B<T2> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericCloduleInModule.js b/tests/baselines/reference/genericCloduleInModule.js
index 3b5e5696dc53d..f8e45bd09b741 100644
--- a/tests/baselines/reference/genericCloduleInModule.js
+++ b/tests/baselines/reference/genericCloduleInModule.js
@@ -16,7 +16,7 @@ b.foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericCloduleInModule2.js b/tests/baselines/reference/genericCloduleInModule2.js
index 82aa1a219f061..3a6bb63f957fb 100644
--- a/tests/baselines/reference/genericCloduleInModule2.js
+++ b/tests/baselines/reference/genericCloduleInModule2.js
@@ -19,7 +19,7 @@ b.foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericCloneReturnTypes.js b/tests/baselines/reference/genericCloneReturnTypes.js
index 9f7f95df4acda..aad9025f2f757 100644
--- a/tests/baselines/reference/genericCloneReturnTypes.js
+++ b/tests/baselines/reference/genericCloneReturnTypes.js
@@ -29,7 +29,7 @@ b = b3;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericCloneReturnTypes2.js b/tests/baselines/reference/genericCloneReturnTypes2.js
index d07b42f11634e..2b6fe6373d304 100644
--- a/tests/baselines/reference/genericCloneReturnTypes2.js
+++ b/tests/baselines/reference/genericCloneReturnTypes2.js
@@ -19,7 +19,7 @@ var d: MyList<number> = a.clone(); // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericConstraint1.js b/tests/baselines/reference/genericConstraint1.js
index c996cfbffd8a0..ac79a61b88d2c 100644
--- a/tests/baselines/reference/genericConstraint1.js
+++ b/tests/baselines/reference/genericConstraint1.js
@@ -12,7 +12,7 @@ x.bar2<string>(2, "");
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericConstraint2.js b/tests/baselines/reference/genericConstraint2.js
index 928bc58ab291d..e0e93da636f81 100644
--- a/tests/baselines/reference/genericConstraint2.js
+++ b/tests/baselines/reference/genericConstraint2.js
@@ -25,7 +25,7 @@ var c = compare<ComparableString>(a, b);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericFunctionsWithOptionalParameters3.js b/tests/baselines/reference/genericFunctionsWithOptionalParameters3.js
index d3e38d9962b8e..69fd3559d2578 100644
--- a/tests/baselines/reference/genericFunctionsWithOptionalParameters3.js
+++ b/tests/baselines/reference/genericFunctionsWithOptionalParameters3.js
@@ -19,7 +19,7 @@ var r5 = utils.mapReduce(c, f1, f2);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericImplements.js b/tests/baselines/reference/genericImplements.js
index 811be4880ab9b..dcd27870d96eb 100644
--- a/tests/baselines/reference/genericImplements.js
+++ b/tests/baselines/reference/genericImplements.js
@@ -24,7 +24,7 @@ class Z implements I {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericInstanceOf.js b/tests/baselines/reference/genericInstanceOf.js
index b8572adc8dedb..17b1df2059e38 100644
--- a/tests/baselines/reference/genericInstanceOf.js
+++ b/tests/baselines/reference/genericInstanceOf.js
@@ -15,7 +15,7 @@ class C<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericInterfaceImplementation.js b/tests/baselines/reference/genericInterfaceImplementation.js
index 60f14af278bd1..779982ebb33ac 100644
--- a/tests/baselines/reference/genericInterfaceImplementation.js
+++ b/tests/baselines/reference/genericInterfaceImplementation.js
@@ -20,7 +20,7 @@ class None<T> implements IOption<T>{
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericMemberFunction.js b/tests/baselines/reference/genericMemberFunction.js
index ebc879aed2408..9d768f3b80813 100644
--- a/tests/baselines/reference/genericMemberFunction.js
+++ b/tests/baselines/reference/genericMemberFunction.js
@@ -26,7 +26,7 @@ export class BuildResult<A, B, C>{
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericObjectLitReturnType.js b/tests/baselines/reference/genericObjectLitReturnType.js
index e368018690bf5..a2215841fb7ad 100644
--- a/tests/baselines/reference/genericObjectLitReturnType.js
+++ b/tests/baselines/reference/genericObjectLitReturnType.js
@@ -15,7 +15,7 @@ t1.a = 5; // Should not error: t1 should have type {a: number}, instead has type
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericOfACloduleType1.js b/tests/baselines/reference/genericOfACloduleType1.js
index df77fbfa97475..2072c5ff811ef 100644
--- a/tests/baselines/reference/genericOfACloduleType1.js
+++ b/tests/baselines/reference/genericOfACloduleType1.js
@@ -16,7 +16,7 @@ var g2 = new G<M.C>() // was: error Type reference cannot refer to container 'M.
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericOfACloduleType2.js b/tests/baselines/reference/genericOfACloduleType2.js
index e7e748301c165..335c55c24052e 100644
--- a/tests/baselines/reference/genericOfACloduleType2.js
+++ b/tests/baselines/reference/genericOfACloduleType2.js
@@ -19,7 +19,7 @@ module N {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericPrototypeProperty.js b/tests/baselines/reference/genericPrototypeProperty.js
index 0b02c6a43912a..f9246ea76b121 100644
--- a/tests/baselines/reference/genericPrototypeProperty.js
+++ b/tests/baselines/reference/genericPrototypeProperty.js
@@ -13,7 +13,7 @@ var r3 = r.foo(null);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js
index 570bbf372aaaf..0b358e71c1082 100644
--- a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js
+++ b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors2.js
@@ -30,7 +30,7 @@ module TypeScript2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js
index 66cf3dd3d3cd8..6f7082d6292ef 100644
--- a/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js
+++ b/tests/baselines/reference/genericRecursiveImplicitConstructorErrors3.js
@@ -44,7 +44,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericReversingTypeParameters.js b/tests/baselines/reference/genericReversingTypeParameters.js
index 64a2360afe8c1..3fd8b52805876 100644
--- a/tests/baselines/reference/genericReversingTypeParameters.js
+++ b/tests/baselines/reference/genericReversingTypeParameters.js
@@ -14,7 +14,7 @@ var r2b = i.get(1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericReversingTypeParameters2.js b/tests/baselines/reference/genericReversingTypeParameters2.js
index 70e3efd024c6a..fa0d824870ad0 100644
--- a/tests/baselines/reference/genericReversingTypeParameters2.js
+++ b/tests/baselines/reference/genericReversingTypeParameters2.js
@@ -13,7 +13,7 @@ var r2b = i.get(1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericSpecializations1.js b/tests/baselines/reference/genericSpecializations1.js
index 96e264287167f..6120114af0bd5 100644
--- a/tests/baselines/reference/genericSpecializations1.js
+++ b/tests/baselines/reference/genericSpecializations1.js
@@ -19,7 +19,7 @@ class StringFoo3 implements IFoo<string> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericSpecializations2.js b/tests/baselines/reference/genericSpecializations2.js
index 73bfe79e0d097..e8916ca7c891d 100644
--- a/tests/baselines/reference/genericSpecializations2.js
+++ b/tests/baselines/reference/genericSpecializations2.js
@@ -23,7 +23,7 @@ class StringFoo3 implements IFoo<string> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericSpecializations3.js b/tests/baselines/reference/genericSpecializations3.js
index 1c3ce72cc7b3b..bd817d0630e30 100644
--- a/tests/baselines/reference/genericSpecializations3.js
+++ b/tests/baselines/reference/genericSpecializations3.js
@@ -39,7 +39,7 @@ var stringFoo3: StringFoo3;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericTypeAssertions1.js b/tests/baselines/reference/genericTypeAssertions1.js
index dc62289a75250..6518490c415aa 100644
--- a/tests/baselines/reference/genericTypeAssertions1.js
+++ b/tests/baselines/reference/genericTypeAssertions1.js
@@ -8,7 +8,7 @@ var r2: A<number> = <A<A<number>>>foo; // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericTypeAssertions2.js b/tests/baselines/reference/genericTypeAssertions2.js
index b4a489e8c65de..851a75cbc4c16 100644
--- a/tests/baselines/reference/genericTypeAssertions2.js
+++ b/tests/baselines/reference/genericTypeAssertions2.js
@@ -17,7 +17,7 @@ var r5: A<number> = <A<number>>[]; // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericTypeAssertions4.js b/tests/baselines/reference/genericTypeAssertions4.js
index 783ee453c5f89..3340454939c43 100644
--- a/tests/baselines/reference/genericTypeAssertions4.js
+++ b/tests/baselines/reference/genericTypeAssertions4.js
@@ -29,7 +29,7 @@ function foo2<T extends A>(x: T) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericTypeAssertions6.js b/tests/baselines/reference/genericTypeAssertions6.js
index a64f84c8be865..e397ebdefc7ca 100644
--- a/tests/baselines/reference/genericTypeAssertions6.js
+++ b/tests/baselines/reference/genericTypeAssertions6.js
@@ -28,7 +28,7 @@ var c: A<Date, Date> = <A<Date, Date>>b;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericTypeConstraints.js b/tests/baselines/reference/genericTypeConstraints.js
index c2079ba9d027e..b57f58a2791af 100644
--- a/tests/baselines/reference/genericTypeConstraints.js
+++ b/tests/baselines/reference/genericTypeConstraints.js
@@ -17,7 +17,7 @@ class BarExtended extends Bar<FooExtended> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericTypeReferencesRequireTypeArgs.js b/tests/baselines/reference/genericTypeReferencesRequireTypeArgs.js
index 00c626cbe06dc..67963a1117ad0 100644
--- a/tests/baselines/reference/genericTypeReferencesRequireTypeArgs.js
+++ b/tests/baselines/reference/genericTypeReferencesRequireTypeArgs.js
@@ -15,7 +15,7 @@ var i2: I<C>; // should be an error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericTypeWithCallableMembers.js b/tests/baselines/reference/genericTypeWithCallableMembers.js
index b9a2b4633e3b0..3086202b09c42 100644
--- a/tests/baselines/reference/genericTypeWithCallableMembers.js
+++ b/tests/baselines/reference/genericTypeWithCallableMembers.js
@@ -16,7 +16,7 @@ class C<T extends Constructable> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericTypeWithNonGenericBaseMisMatch.js b/tests/baselines/reference/genericTypeWithNonGenericBaseMisMatch.js
index 4ddbbf64f0e6d..7bfd850a86ec8 100644
--- a/tests/baselines/reference/genericTypeWithNonGenericBaseMisMatch.js
+++ b/tests/baselines/reference/genericTypeWithNonGenericBaseMisMatch.js
@@ -13,7 +13,7 @@ var i: I = x; // Should not be allowed -- type of 'f' is incompatible with 'I'
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericWithCallSignatures1.js b/tests/baselines/reference/genericWithCallSignatures1.js
index 129c67f4f19ec..4e824922a84fa 100644
--- a/tests/baselines/reference/genericWithCallSignatures1.js
+++ b/tests/baselines/reference/genericWithCallSignatures1.js
@@ -23,7 +23,7 @@ class MyClass {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericWithIndexerOfTypeParameterType1.js b/tests/baselines/reference/genericWithIndexerOfTypeParameterType1.js
index dd1ca4bba5a3b..b98b03143f0ba 100644
--- a/tests/baselines/reference/genericWithIndexerOfTypeParameterType1.js
+++ b/tests/baselines/reference/genericWithIndexerOfTypeParameterType1.js
@@ -12,7 +12,7 @@ var value: string = lazyArray.array()["test"]; // used to be an error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js b/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js
index 0c56f496e6e73..840eb551f2728 100644
--- a/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js
+++ b/tests/baselines/reference/genericWithIndexerOfTypeParameterType2.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericWithOpenTypeParameters1.js b/tests/baselines/reference/genericWithOpenTypeParameters1.js
index a6e656349a6ee..314ce52b76f4d 100644
--- a/tests/baselines/reference/genericWithOpenTypeParameters1.js
+++ b/tests/baselines/reference/genericWithOpenTypeParameters1.js
@@ -15,7 +15,7 @@ var f4 = (x: B<number>) => { return x.foo(1); } // no error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericsWithDuplicateTypeParameters1.js b/tests/baselines/reference/genericsWithDuplicateTypeParameters1.js
index c860a22889628..dd8fd28b9b4d6 100644
--- a/tests/baselines/reference/genericsWithDuplicateTypeParameters1.js
+++ b/tests/baselines/reference/genericsWithDuplicateTypeParameters1.js
@@ -20,7 +20,7 @@ var m = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/genericsWithoutTypeParameters1.js b/tests/baselines/reference/genericsWithoutTypeParameters1.js
index ffc23aca680fd..d7cbc04343d0b 100644
--- a/tests/baselines/reference/genericsWithoutTypeParameters1.js
+++ b/tests/baselines/reference/genericsWithoutTypeParameters1.js
@@ -37,7 +37,7 @@ function f<T>(x: T): A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/getAndSetAsMemberNames.js b/tests/baselines/reference/getAndSetAsMemberNames.js
index 7d04d2b76610b..3e1b907e201d4 100644
--- a/tests/baselines/reference/getAndSetAsMemberNames.js
+++ b/tests/baselines/reference/getAndSetAsMemberNames.js
@@ -25,7 +25,7 @@ class C5 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/getterControlFlowStrictNull.js b/tests/baselines/reference/getterControlFlowStrictNull.js
index b752ea5df4b42..5919143c80a59 100644
--- a/tests/baselines/reference/getterControlFlowStrictNull.js
+++ b/tests/baselines/reference/getterControlFlowStrictNull.js
@@ -22,7 +22,7 @@ class B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/getterThatThrowsShouldNotNeedReturn.js b/tests/baselines/reference/getterThatThrowsShouldNotNeedReturn.js
index aa92a19c81c55..46e7fe943d57a 100644
--- a/tests/baselines/reference/getterThatThrowsShouldNotNeedReturn.js
+++ b/tests/baselines/reference/getterThatThrowsShouldNotNeedReturn.js
@@ -13,7 +13,7 @@ class Greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/giant.js b/tests/baselines/reference/giant.js
index 94535444c75ea..650744110e66c 100644
--- a/tests/baselines/reference/giant.js
+++ b/tests/baselines/reference/giant.js
@@ -684,7 +684,7 @@ export declare module eaM {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/grammarAmbiguities1.js b/tests/baselines/reference/grammarAmbiguities1.js
index 338f5f5d8676a..7372bd6fbacfd 100644
--- a/tests/baselines/reference/grammarAmbiguities1.js
+++ b/tests/baselines/reference/grammarAmbiguities1.js
@@ -14,7 +14,7 @@ f(g < A, B > +(7));
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/heterogeneousArrayAndOverloads.js b/tests/baselines/reference/heterogeneousArrayAndOverloads.js
index 6e0630735a737..f2eed933924fd 100644
--- a/tests/baselines/reference/heterogeneousArrayAndOverloads.js
+++ b/tests/baselines/reference/heterogeneousArrayAndOverloads.js
@@ -15,7 +15,7 @@ class arrTest {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/implementGenericWithMismatchedTypes.js b/tests/baselines/reference/implementGenericWithMismatchedTypes.js
index b83d66f63431c..ca435020e25b0 100644
--- a/tests/baselines/reference/implementGenericWithMismatchedTypes.js
+++ b/tests/baselines/reference/implementGenericWithMismatchedTypes.js
@@ -26,7 +26,7 @@ class C2<T> implements IFoo2<T> { // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/implementInterfaceAnyMemberWithVoid.js b/tests/baselines/reference/implementInterfaceAnyMemberWithVoid.js
index 2cdd7fc51b637..57e8be8d6ae2a 100644
--- a/tests/baselines/reference/implementInterfaceAnyMemberWithVoid.js
+++ b/tests/baselines/reference/implementInterfaceAnyMemberWithVoid.js
@@ -13,7 +13,7 @@ class Bug implements I {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/implementsClauseAlreadySeen.js b/tests/baselines/reference/implementsClauseAlreadySeen.js
index 9140fcf662cac..ced4663a5ee8c 100644
--- a/tests/baselines/reference/implementsClauseAlreadySeen.js
+++ b/tests/baselines/reference/implementsClauseAlreadySeen.js
@@ -10,7 +10,7 @@ class D implements C implements C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/implementsInClassExpression.js b/tests/baselines/reference/implementsInClassExpression.js
index 394cdd9d666d3..ff164297f37c6 100644
--- a/tests/baselines/reference/implementsInClassExpression.js
+++ b/tests/baselines/reference/implementsInClassExpression.js
@@ -11,7 +11,7 @@ let cls = class implements Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/implicitAnyAnyReturningFunction.js b/tests/baselines/reference/implicitAnyAnyReturningFunction.js
index 36c224daeab79..6aac39f901826 100644
--- a/tests/baselines/reference/implicitAnyAnyReturningFunction.js
+++ b/tests/baselines/reference/implicitAnyAnyReturningFunction.js
@@ -24,7 +24,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/implicitAnyCastedValue.js b/tests/baselines/reference/implicitAnyCastedValue.js
index d7041ebbe98a0..38d27ad78d8a2 100644
--- a/tests/baselines/reference/implicitAnyCastedValue.js
+++ b/tests/baselines/reference/implicitAnyCastedValue.js
@@ -82,7 +82,7 @@ var array = <any>[null, undefined];
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/implicitAnyDeclareMemberWithoutType2.js b/tests/baselines/reference/implicitAnyDeclareMemberWithoutType2.js
index bcc503007f6b9..8eff83776f21a 100644
--- a/tests/baselines/reference/implicitAnyDeclareMemberWithoutType2.js
+++ b/tests/baselines/reference/implicitAnyDeclareMemberWithoutType2.js
@@ -13,7 +13,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/implicitAnyFunctionReturnNullOrUndefined.js b/tests/baselines/reference/implicitAnyFunctionReturnNullOrUndefined.js
index e568656653eb6..0ee559310a5fc 100644
--- a/tests/baselines/reference/implicitAnyFunctionReturnNullOrUndefined.js
+++ b/tests/baselines/reference/implicitAnyFunctionReturnNullOrUndefined.js
@@ -28,7 +28,7 @@ undefinedWidenFunction();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/implicitAnyInCatch.js b/tests/baselines/reference/implicitAnyInCatch.js
index 108ddbc0c5022..b6d2b8f2a33c7 100644
--- a/tests/baselines/reference/implicitAnyInCatch.js
+++ b/tests/baselines/reference/implicitAnyInCatch.js
@@ -18,7 +18,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importAndVariableDeclarationConflict2.js b/tests/baselines/reference/importAndVariableDeclarationConflict2.js
index ef509edde86e0..7738fe29fda80 100644
--- a/tests/baselines/reference/importAndVariableDeclarationConflict2.js
+++ b/tests/baselines/reference/importAndVariableDeclarationConflict2.js
@@ -15,7 +15,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importAsBaseClass.js b/tests/baselines/reference/importAsBaseClass.js
index 1ee5c4b339288..7db2a03754fd6 100644
--- a/tests/baselines/reference/importAsBaseClass.js
+++ b/tests/baselines/reference/importAsBaseClass.js
@@ -15,7 +15,7 @@ class Hello extends Greeter { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES3AMD.js b/tests/baselines/reference/importCallExpressionAsyncES3AMD.js
index 5d24857a9050a..d967f36bfa60d 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES3AMD.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES3AMD.js
@@ -32,7 +32,7 @@ export const l = async () => {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES3CJS.js b/tests/baselines/reference/importCallExpressionAsyncES3CJS.js
index 2713fd6eb5802..79ebcc9b8a53b 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES3CJS.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES3CJS.js
@@ -33,7 +33,7 @@ export const l = async () => {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES3System.js b/tests/baselines/reference/importCallExpressionAsyncES3System.js
index 76601c5dbd083..25753c557a934 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES3System.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES3System.js
@@ -34,7 +34,7 @@ System.register([], function (exports_1, context_1) {
     var __names = (this && this.__names) || (function() {
         var name = Object.defineProperty ? (function(proto, name) {
             Object.defineProperty(proto[name], 'name', { 
-                value: name, configurable: true, writable: false, enumerable: false
+                value: name, configurable: true
             });
         }) : (function(proto, name) {
             proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES3UMD.js b/tests/baselines/reference/importCallExpressionAsyncES3UMD.js
index e02be9b98bd4e..57a7364659ad2 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES3UMD.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES3UMD.js
@@ -32,7 +32,7 @@ export const l = async () => {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES5AMD.js b/tests/baselines/reference/importCallExpressionAsyncES5AMD.js
index 3b91349248fa4..a60bc91b9b822 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES5AMD.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES5AMD.js
@@ -32,7 +32,7 @@ export const l = async () => {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES5CJS.js b/tests/baselines/reference/importCallExpressionAsyncES5CJS.js
index fe1dcb55d62f8..b1002bc92272c 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES5CJS.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES5CJS.js
@@ -33,7 +33,7 @@ export const l = async () => {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES5System.js b/tests/baselines/reference/importCallExpressionAsyncES5System.js
index b7d79d0335d61..b3c802c2e44c6 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES5System.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES5System.js
@@ -34,7 +34,7 @@ System.register([], function (exports_1, context_1) {
     var __names = (this && this.__names) || (function() {
         var name = Object.defineProperty ? (function(proto, name) {
             Object.defineProperty(proto[name], 'name', { 
-                value: name, configurable: true, writable: false, enumerable: false
+                value: name, configurable: true
             });
         }) : (function(proto, name) {
             proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionAsyncES5UMD.js b/tests/baselines/reference/importCallExpressionAsyncES5UMD.js
index 8dc8d47e9385c..6259e42f9fd9c 100644
--- a/tests/baselines/reference/importCallExpressionAsyncES5UMD.js
+++ b/tests/baselines/reference/importCallExpressionAsyncES5UMD.js
@@ -32,7 +32,7 @@ export const l = async () => {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionES5AMD.js b/tests/baselines/reference/importCallExpressionES5AMD.js
index fb3ffc29e67a6..31b2f7d084371 100644
--- a/tests/baselines/reference/importCallExpressionES5AMD.js
+++ b/tests/baselines/reference/importCallExpressionES5AMD.js
@@ -39,7 +39,7 @@ define(["require", "exports"], function (require, exports) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionES5CJS.js b/tests/baselines/reference/importCallExpressionES5CJS.js
index f0efc3bb98593..fc0365d9000fd 100644
--- a/tests/baselines/reference/importCallExpressionES5CJS.js
+++ b/tests/baselines/reference/importCallExpressionES5CJS.js
@@ -38,7 +38,7 @@ exports.foo = foo;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionES5System.js b/tests/baselines/reference/importCallExpressionES5System.js
index e54c182356a29..2842299239767 100644
--- a/tests/baselines/reference/importCallExpressionES5System.js
+++ b/tests/baselines/reference/importCallExpressionES5System.js
@@ -46,7 +46,7 @@ System.register([], function (exports_1, context_1) {
     var __names = (this && this.__names) || (function() {
         var name = Object.defineProperty ? (function(proto, name) {
             Object.defineProperty(proto[name], 'name', { 
-                value: name, configurable: true, writable: false, enumerable: false
+                value: name, configurable: true
             });
         }) : (function(proto, name) {
             proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionES5UMD.js b/tests/baselines/reference/importCallExpressionES5UMD.js
index 124ceae6cf6c2..7c3fa6283af5a 100644
--- a/tests/baselines/reference/importCallExpressionES5UMD.js
+++ b/tests/baselines/reference/importCallExpressionES5UMD.js
@@ -47,7 +47,7 @@ export class D {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importCallExpressionNoModuleKindSpecified.js b/tests/baselines/reference/importCallExpressionNoModuleKindSpecified.js
index 2ed528c9b6644..2173bdecab6e1 100644
--- a/tests/baselines/reference/importCallExpressionNoModuleKindSpecified.js
+++ b/tests/baselines/reference/importCallExpressionNoModuleKindSpecified.js
@@ -31,7 +31,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -62,7 +62,7 @@ exports.backup = backup;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importHelpers.js b/tests/baselines/reference/importHelpers.js
index e3eb19bd4869d..57d199a464685 100644
--- a/tests/baselines/reference/importHelpers.js
+++ b/tests/baselines/reference/importHelpers.js
@@ -82,7 +82,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importHelpersNoHelpers.js b/tests/baselines/reference/importHelpersNoHelpers.js
index e791e2670d6cf..2d9da15feb7a8 100644
--- a/tests/baselines/reference/importHelpersNoHelpers.js
+++ b/tests/baselines/reference/importHelpersNoHelpers.js
@@ -93,7 +93,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importHelpersNoModule.js b/tests/baselines/reference/importHelpersNoModule.js
index 8206569c95aae..7050dfdada415 100644
--- a/tests/baselines/reference/importHelpersNoModule.js
+++ b/tests/baselines/reference/importHelpersNoModule.js
@@ -74,7 +74,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/import_reference-exported-alias.js b/tests/baselines/reference/import_reference-exported-alias.js
index d9960f7a4bcec..4ced231b4904a 100644
--- a/tests/baselines/reference/import_reference-exported-alias.js
+++ b/tests/baselines/reference/import_reference-exported-alias.js
@@ -25,7 +25,7 @@ var x = new UserServices().getUserName();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/import_reference-to-type-alias.js b/tests/baselines/reference/import_reference-to-type-alias.js
index 78ff1c1742167..f4d5456d0552e 100644
--- a/tests/baselines/reference/import_reference-to-type-alias.js
+++ b/tests/baselines/reference/import_reference-to-type-alias.js
@@ -21,7 +21,7 @@ var x = new Services.UserServices().getUserName();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/importedAliasesInTypePositions.js b/tests/baselines/reference/importedAliasesInTypePositions.js
index 6e6db567731e7..eea9594d31962 100644
--- a/tests/baselines/reference/importedAliasesInTypePositions.js
+++ b/tests/baselines/reference/importedAliasesInTypePositions.js
@@ -22,7 +22,7 @@ export module ImportingModule {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inOperatorWithGeneric.js b/tests/baselines/reference/inOperatorWithGeneric.js
index d06b2bcda9b2d..6fa222f789faa 100644
--- a/tests/baselines/reference/inOperatorWithGeneric.js
+++ b/tests/baselines/reference/inOperatorWithGeneric.js
@@ -10,7 +10,7 @@ class C<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/incompatibleAssignmentOfIdenticallyNamedTypes.js b/tests/baselines/reference/incompatibleAssignmentOfIdenticallyNamedTypes.js
index aba26303e18d4..3d232893b705c 100644
--- a/tests/baselines/reference/incompatibleAssignmentOfIdenticallyNamedTypes.js
+++ b/tests/baselines/reference/incompatibleAssignmentOfIdenticallyNamedTypes.js
@@ -13,7 +13,7 @@ class Foo<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/incompatibleTypes.js b/tests/baselines/reference/incompatibleTypes.js
index 0d62a50d4281e..e26b1e8b0a6f5 100644
--- a/tests/baselines/reference/incompatibleTypes.js
+++ b/tests/baselines/reference/incompatibleTypes.js
@@ -79,7 +79,7 @@ var fp1: () =>any = a => 0;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/incrementOnTypeParameter.js b/tests/baselines/reference/incrementOnTypeParameter.js
index 4d29b1ea332ce..09ea2185023be 100644
--- a/tests/baselines/reference/incrementOnTypeParameter.js
+++ b/tests/baselines/reference/incrementOnTypeParameter.js
@@ -13,7 +13,7 @@ class C<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/indexTypeCheck.js b/tests/baselines/reference/indexTypeCheck.js
index 0f07864d33100..875000849b4c4 100644
--- a/tests/baselines/reference/indexTypeCheck.js
+++ b/tests/baselines/reference/indexTypeCheck.js
@@ -67,7 +67,7 @@ class Benchmark {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/indexedAccessRelation.js b/tests/baselines/reference/indexedAccessRelation.js
index a83dfec1618cb..b6c7f3b01a172 100644
--- a/tests/baselines/reference/indexedAccessRelation.js
+++ b/tests/baselines/reference/indexedAccessRelation.js
@@ -25,7 +25,7 @@ class Comp<T extends Foo, S> extends Component<S & State<T>>
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/indexedAccessTypeConstraints.js b/tests/baselines/reference/indexedAccessTypeConstraints.js
index 8f1123fca31dd..71544c5d98460 100644
--- a/tests/baselines/reference/indexedAccessTypeConstraints.js
+++ b/tests/baselines/reference/indexedAccessTypeConstraints.js
@@ -41,7 +41,7 @@ function foo<C, T extends { content: C }>(x: C, y: T['content']) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/indexerReturningTypeParameter1.js b/tests/baselines/reference/indexerReturningTypeParameter1.js
index 0118a439178a1..7b5b1ecb06bd9 100644
--- a/tests/baselines/reference/indexerReturningTypeParameter1.js
+++ b/tests/baselines/reference/indexerReturningTypeParameter1.js
@@ -17,7 +17,7 @@ var r2 = a2.groupBy();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/indexersInClassType.js b/tests/baselines/reference/indexersInClassType.js
index 26d10a88a8e6f..2616261c328fe 100644
--- a/tests/baselines/reference/indexersInClassType.js
+++ b/tests/baselines/reference/indexersInClassType.js
@@ -21,7 +21,7 @@ var r3 = r.a
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inferFromGenericFunctionReturnTypes1.js b/tests/baselines/reference/inferFromGenericFunctionReturnTypes1.js
index 0254e63ab614e..41ebece9788e9 100644
--- a/tests/baselines/reference/inferFromGenericFunctionReturnTypes1.js
+++ b/tests/baselines/reference/inferFromGenericFunctionReturnTypes1.js
@@ -76,7 +76,7 @@ testSet.transform(
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inferFromGenericFunctionReturnTypes2.js b/tests/baselines/reference/inferFromGenericFunctionReturnTypes2.js
index 697965123c5ab..37c2ad7777254 100644
--- a/tests/baselines/reference/inferFromGenericFunctionReturnTypes2.js
+++ b/tests/baselines/reference/inferFromGenericFunctionReturnTypes2.js
@@ -99,7 +99,7 @@ const t2 = testSet.transform(
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inferParameterWithMethodCallInitializer.js b/tests/baselines/reference/inferParameterWithMethodCallInitializer.js
index 8bbb7c9ee0098..ce6aed1e24c53 100644
--- a/tests/baselines/reference/inferParameterWithMethodCallInitializer.js
+++ b/tests/baselines/reference/inferParameterWithMethodCallInitializer.js
@@ -24,7 +24,7 @@ class Weird {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inferentialTypingUsingApparentType3.js b/tests/baselines/reference/inferentialTypingUsingApparentType3.js
index 3d5863da48954..1a67c9c89cb51 100644
--- a/tests/baselines/reference/inferentialTypingUsingApparentType3.js
+++ b/tests/baselines/reference/inferentialTypingUsingApparentType3.js
@@ -30,7 +30,7 @@ person.fields.id;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inferringClassMembersFromAssignments.js b/tests/baselines/reference/inferringClassMembersFromAssignments.js
index e2dd0ec5d6aae..0fd72210454ab 100644
--- a/tests/baselines/reference/inferringClassMembersFromAssignments.js
+++ b/tests/baselines/reference/inferringClassMembersFromAssignments.js
@@ -127,7 +127,7 @@ var stringOrNumberOrUndefined = C.inStaticNestedArrowFunction;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inheritance.js b/tests/baselines/reference/inheritance.js
index c85f3d77f5432..9af29ac523972 100644
--- a/tests/baselines/reference/inheritance.js
+++ b/tests/baselines/reference/inheritance.js
@@ -48,7 +48,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inheritance1.js b/tests/baselines/reference/inheritance1.js
index 6c9c479d38373..26f0ba2b859af 100644
--- a/tests/baselines/reference/inheritance1.js
+++ b/tests/baselines/reference/inheritance1.js
@@ -75,7 +75,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js
index 7bd14f8adb699..4936643f2bea5 100644
--- a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js
+++ b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollision.js
@@ -14,7 +14,7 @@ class C extends B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js
index 9e0a47e12aba1..b98a3e0c63452 100644
--- a/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js
+++ b/tests/baselines/reference/inheritanceGrandParentPrivateMemberCollisionWithPublicMember.js
@@ -14,7 +14,7 @@ class C extends B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js b/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js
index 143a44aedac3d..c7e7c55538e22 100644
--- a/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js
+++ b/tests/baselines/reference/inheritanceGrandParentPublicMemberCollisionWithPrivateMember.js
@@ -14,7 +14,7 @@ class C extends B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js b/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js
index 6e69db49c21f9..aac8d7d37857d 100644
--- a/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceMemberAccessorOverridingMethod.js
@@ -18,7 +18,7 @@ class b extends a {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js b/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js
index 9a6406f0fac74..c32a5e61d5e48 100644
--- a/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js
+++ b/tests/baselines/reference/inheritanceMemberFuncOverridingAccessor.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js b/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js
index 8f8053a4093bd..d0cef81020a7a 100644
--- a/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceMemberFuncOverridingMethod.js
@@ -15,7 +15,7 @@ class b extends a {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js b/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js
index cd33c1c8f8a4d..9473bfdfa384c 100644
--- a/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js
+++ b/tests/baselines/reference/inheritanceMemberFuncOverridingProperty.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js b/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js
index de55945632a41..80b7deae0a51c 100644
--- a/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js
+++ b/tests/baselines/reference/inheritanceMemberPropertyOverridingMethod.js
@@ -13,7 +13,7 @@ class b extends a {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/innerAliases2.js b/tests/baselines/reference/innerAliases2.js
index 8ca8d8cbf3f5c..4a0848338f3e5 100644
--- a/tests/baselines/reference/innerAliases2.js
+++ b/tests/baselines/reference/innerAliases2.js
@@ -23,7 +23,7 @@ module consumer {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/innerTypeParameterShadowingOuterOne2.js b/tests/baselines/reference/innerTypeParameterShadowingOuterOne2.js
index 1861ed2c198a6..a9e54e43bdf1e 100644
--- a/tests/baselines/reference/innerTypeParameterShadowingOuterOne2.js
+++ b/tests/baselines/reference/innerTypeParameterShadowingOuterOne2.js
@@ -43,7 +43,7 @@ class C2<T extends Date, U extends Date> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/instanceAndStaticDeclarations1.js b/tests/baselines/reference/instanceAndStaticDeclarations1.js
index 9e15065516394..9cecfe9c54d09 100644
--- a/tests/baselines/reference/instanceAndStaticDeclarations1.js
+++ b/tests/baselines/reference/instanceAndStaticDeclarations1.js
@@ -17,7 +17,7 @@ class Point {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/instanceMemberAssignsToClassPrototype.js b/tests/baselines/reference/instanceMemberAssignsToClassPrototype.js
index 822d838a74395..86469d123248a 100644
--- a/tests/baselines/reference/instanceMemberAssignsToClassPrototype.js
+++ b/tests/baselines/reference/instanceMemberAssignsToClassPrototype.js
@@ -16,7 +16,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js b/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js
index 5927555f389da..c2461c84b1813 100644
--- a/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js
+++ b/tests/baselines/reference/instancePropertiesInheritedIntoClassType.js
@@ -46,7 +46,7 @@ module Generic {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/instancePropertyInClassType.js b/tests/baselines/reference/instancePropertyInClassType.js
index 56b1b7c9e3846..54813ca0476a2 100644
--- a/tests/baselines/reference/instancePropertyInClassType.js
+++ b/tests/baselines/reference/instancePropertyInClassType.js
@@ -42,7 +42,7 @@ module Generic {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/instanceofOperatorWithInvalidOperands.js b/tests/baselines/reference/instanceofOperatorWithInvalidOperands.js
index 4155be5c42fc5..3b71d01f784ac 100644
--- a/tests/baselines/reference/instanceofOperatorWithInvalidOperands.js
+++ b/tests/baselines/reference/instanceofOperatorWithInvalidOperands.js
@@ -50,7 +50,7 @@ var rc1 = '' instanceof {};
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/instantiatedBaseTypeConstraints.js b/tests/baselines/reference/instantiatedBaseTypeConstraints.js
index ff591f865515a..b67879dea082a 100644
--- a/tests/baselines/reference/instantiatedBaseTypeConstraints.js
+++ b/tests/baselines/reference/instantiatedBaseTypeConstraints.js
@@ -15,7 +15,7 @@ class Bar implements Foo<Bar, string> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/instantiatedReturnTypeContravariance.js b/tests/baselines/reference/instantiatedReturnTypeContravariance.js
index 9456ecbbeb113..e33ea7dceb270 100644
--- a/tests/baselines/reference/instantiatedReturnTypeContravariance.js
+++ b/tests/baselines/reference/instantiatedReturnTypeContravariance.js
@@ -34,7 +34,7 @@ return null;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/intTypeCheck.js b/tests/baselines/reference/intTypeCheck.js
index fbb4efd91a1c1..039f778805c5d 100644
--- a/tests/baselines/reference/intTypeCheck.js
+++ b/tests/baselines/reference/intTypeCheck.js
@@ -209,7 +209,7 @@ var obj87: i8 = new {};
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceClassMerging.js b/tests/baselines/reference/interfaceClassMerging.js
index 5de7ab16ba2de..b338af4c0693a 100644
--- a/tests/baselines/reference/interfaceClassMerging.js
+++ b/tests/baselines/reference/interfaceClassMerging.js
@@ -44,7 +44,7 @@ obj = bar;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceClassMerging2.js b/tests/baselines/reference/interfaceClassMerging2.js
index f947247f7be58..977cfafb3e28e 100644
--- a/tests/baselines/reference/interfaceClassMerging2.js
+++ b/tests/baselines/reference/interfaceClassMerging2.js
@@ -40,7 +40,7 @@ foo = bar;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceContextualType.js b/tests/baselines/reference/interfaceContextualType.js
index 67d255dcdc562..eb5265de0b11b 100644
--- a/tests/baselines/reference/interfaceContextualType.js
+++ b/tests/baselines/reference/interfaceContextualType.js
@@ -26,7 +26,7 @@ class Bug {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceExtendingClass.js b/tests/baselines/reference/interfaceExtendingClass.js
index c261cec161e45..b4760fd71fb57 100644
--- a/tests/baselines/reference/interfaceExtendingClass.js
+++ b/tests/baselines/reference/interfaceExtendingClass.js
@@ -23,7 +23,7 @@ i = f;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceExtendingClass2.js b/tests/baselines/reference/interfaceExtendingClass2.js
index 2777969b4adc8..6f2920f33974e 100644
--- a/tests/baselines/reference/interfaceExtendingClass2.js
+++ b/tests/baselines/reference/interfaceExtendingClass2.js
@@ -19,7 +19,7 @@ interface I2 extends Foo { // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceExtendsClass1.js b/tests/baselines/reference/interfaceExtendsClass1.js
index 0a3ce70493e8d..6a37907a4ed51 100644
--- a/tests/baselines/reference/interfaceExtendsClass1.js
+++ b/tests/baselines/reference/interfaceExtendsClass1.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js b/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js
index 81ab9a51f39cc..d487b24d80491 100644
--- a/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js
+++ b/tests/baselines/reference/interfaceExtendsClassWithPrivate1.js
@@ -31,7 +31,7 @@ d = c; // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js b/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js
index 701834e824f6e..5b64492f2a363 100644
--- a/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js
+++ b/tests/baselines/reference/interfaceExtendsClassWithPrivate2.js
@@ -27,7 +27,7 @@ class D2 extends C implements I { // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceImplementation1.js b/tests/baselines/reference/interfaceImplementation1.js
index 68143ac929dc2..08964361925d0 100644
--- a/tests/baselines/reference/interfaceImplementation1.js
+++ b/tests/baselines/reference/interfaceImplementation1.js
@@ -50,7 +50,7 @@ c["foo"];
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceImplementation3.js b/tests/baselines/reference/interfaceImplementation3.js
index fd044f65fb5df..f7eb674749b6f 100644
--- a/tests/baselines/reference/interfaceImplementation3.js
+++ b/tests/baselines/reference/interfaceImplementation3.js
@@ -19,7 +19,7 @@ class C4 implements I1 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceImplementation4.js b/tests/baselines/reference/interfaceImplementation4.js
index 226c21d00f85f..555175f7eb582 100644
--- a/tests/baselines/reference/interfaceImplementation4.js
+++ b/tests/baselines/reference/interfaceImplementation4.js
@@ -17,7 +17,7 @@ class C5 implements I1 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceImplementation7.js b/tests/baselines/reference/interfaceImplementation7.js
index 147a073dc96cc..8a4278cecd205 100644
--- a/tests/baselines/reference/interfaceImplementation7.js
+++ b/tests/baselines/reference/interfaceImplementation7.js
@@ -14,7 +14,7 @@ class C1 implements i4 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceSubtyping.js b/tests/baselines/reference/interfaceSubtyping.js
index a26a70667e808..6ca6914e97ab3 100644
--- a/tests/baselines/reference/interfaceSubtyping.js
+++ b/tests/baselines/reference/interfaceSubtyping.js
@@ -13,7 +13,7 @@ class Camera implements iface{
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/interfaceWithPropertyThatIsPrivateInBaseType2.js b/tests/baselines/reference/interfaceWithPropertyThatIsPrivateInBaseType2.js
index e971fcb046472..5df6f0ed38eaf 100644
--- a/tests/baselines/reference/interfaceWithPropertyThatIsPrivateInBaseType2.js
+++ b/tests/baselines/reference/interfaceWithPropertyThatIsPrivateInBaseType2.js
@@ -19,7 +19,7 @@ interface Foo2<T> extends Base2<T> { // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithExport.js b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithExport.js
index 0b849d3f2d65e..6d1e381bb8473 100644
--- a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithExport.js
+++ b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithExport.js
@@ -22,7 +22,7 @@ export var d = new m2.m3.c();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExport.js b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExport.js
index 4ffe305993a17..0559262645f9b 100644
--- a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExport.js
+++ b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExport.js
@@ -20,7 +20,7 @@ export module m2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExportAccessError.js b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExportAccessError.js
index 753edac75cf43..81e1b34cdc726 100644
--- a/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExportAccessError.js
+++ b/tests/baselines/reference/internalAliasClassInsideLocalModuleWithoutExportAccessError.js
@@ -22,7 +22,7 @@ export var d = new m2.m3.c();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithExport.js b/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithExport.js
index d659e75b03e96..55098dd39cc92 100644
--- a/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithExport.js
+++ b/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithExport.js
@@ -16,7 +16,7 @@ var cReturnVal = cProp.foo(10);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithoutExport.js b/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithoutExport.js
index 332fa032924a3..4325103f1ce68 100644
--- a/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithoutExport.js
+++ b/tests/baselines/reference/internalAliasClassInsideTopLevelModuleWithoutExport.js
@@ -16,7 +16,7 @@ var cReturnVal = cProp.foo(10);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/invalidNewTarget.es5.js b/tests/baselines/reference/invalidNewTarget.es5.js
index 31a2449fc9aa7..e27598f8edefb 100644
--- a/tests/baselines/reference/invalidNewTarget.es5.js
+++ b/tests/baselines/reference/invalidNewTarget.es5.js
@@ -28,7 +28,7 @@ const O = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/invalidReturnStatements.js b/tests/baselines/reference/invalidReturnStatements.js
index 076aa3f89b259..d06262d295711 100644
--- a/tests/baselines/reference/invalidReturnStatements.js
+++ b/tests/baselines/reference/invalidReturnStatements.js
@@ -24,7 +24,7 @@ function fn11(): D { return new C(); }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/invalidStaticField.js b/tests/baselines/reference/invalidStaticField.js
index a72fcafdc62b3..3d6990ae6a54e 100644
--- a/tests/baselines/reference/invalidStaticField.js
+++ b/tests/baselines/reference/invalidStaticField.js
@@ -6,7 +6,7 @@ class B { static NOT_NULL = new B(); }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/invalidThisEmitInContextualObjectLiteral.js b/tests/baselines/reference/invalidThisEmitInContextualObjectLiteral.js
index 9817156ae9b34..521d822f7c9cc 100644
--- a/tests/baselines/reference/invalidThisEmitInContextualObjectLiteral.js
+++ b/tests/baselines/reference/invalidThisEmitInContextualObjectLiteral.js
@@ -17,7 +17,7 @@ class TestController {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/jsFileCompilationClassMethodContainingArrowFunction.js b/tests/baselines/reference/jsFileCompilationClassMethodContainingArrowFunction.js
index 4aea7a89d1be5..5cea9576cc5a2 100644
--- a/tests/baselines/reference/jsFileCompilationClassMethodContainingArrowFunction.js
+++ b/tests/baselines/reference/jsFileCompilationClassMethodContainingArrowFunction.js
@@ -9,7 +9,7 @@ class c {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/jsxFactoryQualifiedNameWithEs5.js b/tests/baselines/reference/jsxFactoryQualifiedNameWithEs5.js
index 58ecdfaa4145a..dfe269edba708 100644
--- a/tests/baselines/reference/jsxFactoryQualifiedNameWithEs5.js
+++ b/tests/baselines/reference/jsxFactoryQualifiedNameWithEs5.js
@@ -15,7 +15,7 @@ class Component {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/jsxInExtendsClause.js b/tests/baselines/reference/jsxInExtendsClause.js
index 5d4fc0007b60a..4e57fb496b7e3 100644
--- a/tests/baselines/reference/jsxInExtendsClause.js
+++ b/tests/baselines/reference/jsxInExtendsClause.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/jsxViaImport.2.js b/tests/baselines/reference/jsxViaImport.2.js
index 3406b9c9a7e4e..1cb3e09a87c69 100644
--- a/tests/baselines/reference/jsxViaImport.2.js
+++ b/tests/baselines/reference/jsxViaImport.2.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/jsxViaImport.js b/tests/baselines/reference/jsxViaImport.js
index 09d2f7a97aa51..5ebd933cfd236 100644
--- a/tests/baselines/reference/jsxViaImport.js
+++ b/tests/baselines/reference/jsxViaImport.js
@@ -37,7 +37,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/keyofAndIndexedAccess.js b/tests/baselines/reference/keyofAndIndexedAccess.js
index 01972cc6dca90..ae4706ddbced2 100644
--- a/tests/baselines/reference/keyofAndIndexedAccess.js
+++ b/tests/baselines/reference/keyofAndIndexedAccess.js
@@ -568,7 +568,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/lambdaArgCrash.js b/tests/baselines/reference/lambdaArgCrash.js
index 01e9b419bfc9b..b4c0d0a1d5e9e 100644
--- a/tests/baselines/reference/lambdaArgCrash.js
+++ b/tests/baselines/reference/lambdaArgCrash.js
@@ -38,7 +38,7 @@ class ItemSetEvent extends Event {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/lambdaPropSelf.js b/tests/baselines/reference/lambdaPropSelf.js
index a941580a95bce..c894447f8beb4 100644
--- a/tests/baselines/reference/lambdaPropSelf.js
+++ b/tests/baselines/reference/lambdaPropSelf.js
@@ -27,7 +27,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/lift.js b/tests/baselines/reference/lift.js
index 0a952cbc2fae0..d3e55942c0861 100644
--- a/tests/baselines/reference/lift.js
+++ b/tests/baselines/reference/lift.js
@@ -31,7 +31,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/listFailure.js b/tests/baselines/reference/listFailure.js
index 806bbb0deecfb..39fa7ca40e2f8 100644
--- a/tests/baselines/reference/listFailure.js
+++ b/tests/baselines/reference/listFailure.js
@@ -45,7 +45,7 @@ module Editor {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/literalTypes2.js b/tests/baselines/reference/literalTypes2.js
index 9c4cdcd025e79..cea189eb00ebf 100644
--- a/tests/baselines/reference/literalTypes2.js
+++ b/tests/baselines/reference/literalTypes2.js
@@ -183,7 +183,7 @@ aa = append(aa, 1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/localTypes1.js b/tests/baselines/reference/localTypes1.js
index 6e166f4640f73..5efade1dad1de 100644
--- a/tests/baselines/reference/localTypes1.js
+++ b/tests/baselines/reference/localTypes1.js
@@ -144,7 +144,7 @@ function f6() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/localTypes5.js b/tests/baselines/reference/localTypes5.js
index 827fabe52a913..bed390ada8893 100644
--- a/tests/baselines/reference/localTypes5.js
+++ b/tests/baselines/reference/localTypes5.js
@@ -19,7 +19,7 @@ var x = foo<void>();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/looseThisTypeInFunctions.js b/tests/baselines/reference/looseThisTypeInFunctions.js
index 058a72efa9b10..958532ff02d5b 100644
--- a/tests/baselines/reference/looseThisTypeInFunctions.js
+++ b/tests/baselines/reference/looseThisTypeInFunctions.js
@@ -52,7 +52,7 @@ i.explicitThis = function(m) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mappedTypeErrors.js b/tests/baselines/reference/mappedTypeErrors.js
index 1ed223c379071..c26b72ad21632 100644
--- a/tests/baselines/reference/mappedTypeErrors.js
+++ b/tests/baselines/reference/mappedTypeErrors.js
@@ -148,7 +148,7 @@ let f: Foo2<O, 'x'> = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mappedTypePartialConstraints.js b/tests/baselines/reference/mappedTypePartialConstraints.js
index b111e292a69e4..a528a62b2b568 100644
--- a/tests/baselines/reference/mappedTypePartialConstraints.js
+++ b/tests/baselines/reference/mappedTypePartialConstraints.js
@@ -21,7 +21,7 @@ fn(MySubClass);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/matchReturnTypeInAllBranches.js b/tests/baselines/reference/matchReturnTypeInAllBranches.js
index 95b61d7d8fddd..b271f0b1d2ad1 100644
--- a/tests/baselines/reference/matchReturnTypeInAllBranches.js
+++ b/tests/baselines/reference/matchReturnTypeInAllBranches.js
@@ -39,7 +39,7 @@ cookieMonster = new IceCreamMonster("Chocolate Chip", false, "COOOOOKIE", "Cooki
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/memberFunctionsWithPrivateOverloads.js b/tests/baselines/reference/memberFunctionsWithPrivateOverloads.js
index 65f1510eca46c..dfe9cdfc55079 100644
--- a/tests/baselines/reference/memberFunctionsWithPrivateOverloads.js
+++ b/tests/baselines/reference/memberFunctionsWithPrivateOverloads.js
@@ -53,7 +53,7 @@ var r4 = D.bar(''); // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/memberFunctionsWithPublicOverloads.js b/tests/baselines/reference/memberFunctionsWithPublicOverloads.js
index 3d0027bd261ee..52374a3f38bc5 100644
--- a/tests/baselines/reference/memberFunctionsWithPublicOverloads.js
+++ b/tests/baselines/reference/memberFunctionsWithPublicOverloads.js
@@ -44,7 +44,7 @@ class D<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/memberFunctionsWithPublicPrivateOverloads.js b/tests/baselines/reference/memberFunctionsWithPublicPrivateOverloads.js
index 6492930b81053..fb670bf3ed5da 100644
--- a/tests/baselines/reference/memberFunctionsWithPublicPrivateOverloads.js
+++ b/tests/baselines/reference/memberFunctionsWithPublicPrivateOverloads.js
@@ -66,7 +66,7 @@ var r2 = d.foo(2); // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mergedDeclarations5.js b/tests/baselines/reference/mergedDeclarations5.js
index d641665b18a94..8dd7d6944d029 100644
--- a/tests/baselines/reference/mergedDeclarations5.js
+++ b/tests/baselines/reference/mergedDeclarations5.js
@@ -15,7 +15,7 @@ class B extends A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -47,7 +47,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mergedDeclarations6.js b/tests/baselines/reference/mergedDeclarations6.js
index 54e2435a57464..fd50022e43287 100644
--- a/tests/baselines/reference/mergedDeclarations6.js
+++ b/tests/baselines/reference/mergedDeclarations6.js
@@ -26,7 +26,7 @@ export class B extends A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -65,7 +65,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mergedInheritedClassInterface.js b/tests/baselines/reference/mergedInheritedClassInterface.js
index 77726d28a3704..c3823ebef7fe2 100644
--- a/tests/baselines/reference/mergedInheritedClassInterface.js
+++ b/tests/baselines/reference/mergedInheritedClassInterface.js
@@ -50,7 +50,7 @@ grandchild.method2();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/methodContainingLocalFunction.js b/tests/baselines/reference/methodContainingLocalFunction.js
index 224f3e311f3fa..4ecbd8f70085b 100644
--- a/tests/baselines/reference/methodContainingLocalFunction.js
+++ b/tests/baselines/reference/methodContainingLocalFunction.js
@@ -54,7 +54,7 @@ enum E {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/methodSignatureDeclarationEmit1.js b/tests/baselines/reference/methodSignatureDeclarationEmit1.js
index 8258410ce6cfe..2ff6e1412e05f 100644
--- a/tests/baselines/reference/methodSignatureDeclarationEmit1.js
+++ b/tests/baselines/reference/methodSignatureDeclarationEmit1.js
@@ -10,7 +10,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mismatchedGenericArguments1.js b/tests/baselines/reference/mismatchedGenericArguments1.js
index 20bf81461fbdc..b45100a6549cf 100644
--- a/tests/baselines/reference/mismatchedGenericArguments1.js
+++ b/tests/baselines/reference/mismatchedGenericArguments1.js
@@ -19,7 +19,7 @@ class C2<T> implements IFoo<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/missingDecoratorType.js b/tests/baselines/reference/missingDecoratorType.js
index 8f2ba5176befd..d5ed28e2708ab 100644
--- a/tests/baselines/reference/missingDecoratorType.js
+++ b/tests/baselines/reference/missingDecoratorType.js
@@ -25,7 +25,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/missingPropertiesOfClassExpression.js b/tests/baselines/reference/missingPropertiesOfClassExpression.js
index 24a60923347a5..d3c072e0301f2 100644
--- a/tests/baselines/reference/missingPropertiesOfClassExpression.js
+++ b/tests/baselines/reference/missingPropertiesOfClassExpression.js
@@ -20,7 +20,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/missingReturnStatement.js b/tests/baselines/reference/missingReturnStatement.js
index 44270f48df30d..64570f9f92e75 100644
--- a/tests/baselines/reference/missingReturnStatement.js
+++ b/tests/baselines/reference/missingReturnStatement.js
@@ -11,7 +11,7 @@ module Test {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/missingReturnStatement1.js b/tests/baselines/reference/missingReturnStatement1.js
index e3262b9664086..1333d699e91dc 100644
--- a/tests/baselines/reference/missingReturnStatement1.js
+++ b/tests/baselines/reference/missingReturnStatement1.js
@@ -10,7 +10,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/missingSelf.js b/tests/baselines/reference/missingSelf.js
index 5f7a96023a4bc..f24c8914f2b84 100644
--- a/tests/baselines/reference/missingSelf.js
+++ b/tests/baselines/reference/missingSelf.js
@@ -22,7 +22,7 @@ c2.b();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mixedStaticAndInstanceClassMembers.js b/tests/baselines/reference/mixedStaticAndInstanceClassMembers.js
index 4f00ce2ba3775..934c0822ea905 100644
--- a/tests/baselines/reference/mixedStaticAndInstanceClassMembers.js
+++ b/tests/baselines/reference/mixedStaticAndInstanceClassMembers.js
@@ -19,7 +19,7 @@ class B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mixinAccessModifiers.js b/tests/baselines/reference/mixinAccessModifiers.js
index c47a24a063b42..52723c951dfdb 100644
--- a/tests/baselines/reference/mixinAccessModifiers.js
+++ b/tests/baselines/reference/mixinAccessModifiers.js
@@ -121,7 +121,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mixinClassesAnnotated.js b/tests/baselines/reference/mixinClassesAnnotated.js
index e46d76986b5ce..bd7a4bb59a1a3 100644
--- a/tests/baselines/reference/mixinClassesAnnotated.js
+++ b/tests/baselines/reference/mixinClassesAnnotated.js
@@ -80,7 +80,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mixinClassesAnonymous.js b/tests/baselines/reference/mixinClassesAnonymous.js
index d0ccd9a8f9371..22333800d5bb9 100644
--- a/tests/baselines/reference/mixinClassesAnonymous.js
+++ b/tests/baselines/reference/mixinClassesAnonymous.js
@@ -79,7 +79,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mixinClassesMembers.js b/tests/baselines/reference/mixinClassesMembers.js
index 4224fb869207d..9063afc15e8eb 100644
--- a/tests/baselines/reference/mixinClassesMembers.js
+++ b/tests/baselines/reference/mixinClassesMembers.js
@@ -112,7 +112,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mixinPrivateAndProtected.js b/tests/baselines/reference/mixinPrivateAndProtected.js
index 694af2293b123..dde436a77a9b2 100644
--- a/tests/baselines/reference/mixinPrivateAndProtected.js
+++ b/tests/baselines/reference/mixinPrivateAndProtected.js
@@ -104,7 +104,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mixingStaticAndInstanceOverloads.js b/tests/baselines/reference/mixingStaticAndInstanceOverloads.js
index 44852f3274bb3..bcd1da326517e 100644
--- a/tests/baselines/reference/mixingStaticAndInstanceOverloads.js
+++ b/tests/baselines/reference/mixingStaticAndInstanceOverloads.js
@@ -39,7 +39,7 @@ class C5 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/modifierOnClassDeclarationMemberInFunction.js b/tests/baselines/reference/modifierOnClassDeclarationMemberInFunction.js
index 634f21cc55ae4..6f186c88111dc 100644
--- a/tests/baselines/reference/modifierOnClassDeclarationMemberInFunction.js
+++ b/tests/baselines/reference/modifierOnClassDeclarationMemberInFunction.js
@@ -11,7 +11,7 @@ function f() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/modifierOnClassExpressionMemberInFunction.js b/tests/baselines/reference/modifierOnClassExpressionMemberInFunction.js
index f4fac0f61abab..67028167db05b 100644
--- a/tests/baselines/reference/modifierOnClassExpressionMemberInFunction.js
+++ b/tests/baselines/reference/modifierOnClassExpressionMemberInFunction.js
@@ -11,7 +11,7 @@ function g() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/moduleAliasInterface.js b/tests/baselines/reference/moduleAliasInterface.js
index 051a2ac7c31bc..3d3717b37b9db 100644
--- a/tests/baselines/reference/moduleAliasInterface.js
+++ b/tests/baselines/reference/moduleAliasInterface.js
@@ -59,7 +59,7 @@ module B1 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/moduleCodeGenTest5.js b/tests/baselines/reference/moduleCodeGenTest5.js
index cf34adbe61289..32153a82bb713 100644
--- a/tests/baselines/reference/moduleCodeGenTest5.js
+++ b/tests/baselines/reference/moduleCodeGenTest5.js
@@ -26,7 +26,7 @@ var v = E2.B;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/moduleMemberWithoutTypeAnnotation1.js b/tests/baselines/reference/moduleMemberWithoutTypeAnnotation1.js
index 63ed994c03f17..285c973eb6e89 100644
--- a/tests/baselines/reference/moduleMemberWithoutTypeAnnotation1.js
+++ b/tests/baselines/reference/moduleMemberWithoutTypeAnnotation1.js
@@ -50,7 +50,7 @@ module TypeScript.Syntax {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/moduleMerge.js b/tests/baselines/reference/moduleMerge.js
index 1fe47289ed18e..4a14ca6706d27 100644
--- a/tests/baselines/reference/moduleMerge.js
+++ b/tests/baselines/reference/moduleMerge.js
@@ -28,7 +28,7 @@ module A
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/moduleNewExportBug.js b/tests/baselines/reference/moduleNewExportBug.js
index f192058b2841d..04b2a518e9bc0 100644
--- a/tests/baselines/reference/moduleNewExportBug.js
+++ b/tests/baselines/reference/moduleNewExportBug.js
@@ -17,7 +17,7 @@ var c : mod1.C; // ERROR: C should not be visible
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/moduleReopenedTypeOtherBlock.js b/tests/baselines/reference/moduleReopenedTypeOtherBlock.js
index d6522168aaeb9..d9290cbac90b0 100644
--- a/tests/baselines/reference/moduleReopenedTypeOtherBlock.js
+++ b/tests/baselines/reference/moduleReopenedTypeOtherBlock.js
@@ -12,7 +12,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/moduleReopenedTypeSameBlock.js b/tests/baselines/reference/moduleReopenedTypeSameBlock.js
index 21b2c926a5b0f..33625afa7cfa6 100644
--- a/tests/baselines/reference/moduleReopenedTypeSameBlock.js
+++ b/tests/baselines/reference/moduleReopenedTypeSameBlock.js
@@ -10,7 +10,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/moduleVisibilityTest1.js b/tests/baselines/reference/moduleVisibilityTest1.js
index d42cc12fd8a98..0d6c61d2d0d77 100644
--- a/tests/baselines/reference/moduleVisibilityTest1.js
+++ b/tests/baselines/reference/moduleVisibilityTest1.js
@@ -69,7 +69,7 @@ c.someMethodThatCallsAnOuterMethod();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/moduleVisibilityTest2.js b/tests/baselines/reference/moduleVisibilityTest2.js
index f4c5266a0e017..e34fb634d6e10 100644
--- a/tests/baselines/reference/moduleVisibilityTest2.js
+++ b/tests/baselines/reference/moduleVisibilityTest2.js
@@ -70,7 +70,7 @@ c.someMethodThatCallsAnOuterMethod();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/moduledecl.js b/tests/baselines/reference/moduledecl.js
index 33d213f097a57..f81639c1718aa 100644
--- a/tests/baselines/reference/moduledecl.js
+++ b/tests/baselines/reference/moduledecl.js
@@ -236,7 +236,7 @@ var m3eVar: mAmbient.m3.e;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/multiImportExport.js b/tests/baselines/reference/multiImportExport.js
index 6a5d15c6484c7..e7c346ffbf313 100644
--- a/tests/baselines/reference/multiImportExport.js
+++ b/tests/baselines/reference/multiImportExport.js
@@ -30,7 +30,7 @@ export = Adder;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/multiModuleClodule1.js b/tests/baselines/reference/multiModuleClodule1.js
index 4f28b85a9ff86..efa7e23066901 100644
--- a/tests/baselines/reference/multiModuleClodule1.js
+++ b/tests/baselines/reference/multiModuleClodule1.js
@@ -22,7 +22,7 @@ c.foo = C.foo;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/multipleDeclarations.js b/tests/baselines/reference/multipleDeclarations.js
index 19ee0cef10070..e0b598277c788 100644
--- a/tests/baselines/reference/multipleDeclarations.js
+++ b/tests/baselines/reference/multipleDeclarations.js
@@ -39,7 +39,7 @@ y.mistake();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/multipleInheritance.js b/tests/baselines/reference/multipleInheritance.js
index 94a7e30402721..299d8a572db27 100644
--- a/tests/baselines/reference/multipleInheritance.js
+++ b/tests/baselines/reference/multipleInheritance.js
@@ -52,7 +52,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js b/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js
index 44f6799a035c5..af35fd2aa04d5 100644
--- a/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js
+++ b/tests/baselines/reference/mutuallyRecursiveGenericBaseTypes2.js
@@ -14,7 +14,7 @@ var test = new foo<string>();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/narrowTypeByInstanceof.js b/tests/baselines/reference/narrowTypeByInstanceof.js
index effd065ceba55..d816c33b35c30 100644
--- a/tests/baselines/reference/narrowTypeByInstanceof.js
+++ b/tests/baselines/reference/narrowTypeByInstanceof.js
@@ -29,7 +29,7 @@ if (elementA instanceof FileMatch && elementB instanceof FileMatch) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/narrowedConstInMethod.js b/tests/baselines/reference/narrowedConstInMethod.js
index 83f7680a9993a..3b7bd9db6266d 100644
--- a/tests/baselines/reference/narrowedConstInMethod.js
+++ b/tests/baselines/reference/narrowedConstInMethod.js
@@ -23,7 +23,7 @@ function f2() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/nestedLoops.js b/tests/baselines/reference/nestedLoops.js
index 41ae7693dfb0c..d33630267ee2c 100644
--- a/tests/baselines/reference/nestedLoops.js
+++ b/tests/baselines/reference/nestedLoops.js
@@ -22,7 +22,7 @@ export class Test  {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/nestedSelf.js b/tests/baselines/reference/nestedSelf.js
index 80a6aa2c1ab85..8eb998853d5e8 100644
--- a/tests/baselines/reference/nestedSelf.js
+++ b/tests/baselines/reference/nestedSelf.js
@@ -12,7 +12,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/neverType.js b/tests/baselines/reference/neverType.js
index 4043194256caf..dbf085aefc61f 100644
--- a/tests/baselines/reference/neverType.js
+++ b/tests/baselines/reference/neverType.js
@@ -94,7 +94,7 @@ test(errorCallback);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/newArrays.js b/tests/baselines/reference/newArrays.js
index a8a7789caec1d..45ddab29ac86b 100644
--- a/tests/baselines/reference/newArrays.js
+++ b/tests/baselines/reference/newArrays.js
@@ -16,7 +16,7 @@ module M {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/noCollisionThisExpressionAndLocalVarInMethod.js b/tests/baselines/reference/noCollisionThisExpressionAndLocalVarInMethod.js
index add229d862f6a..21aa3624bcad9 100644
--- a/tests/baselines/reference/noCollisionThisExpressionAndLocalVarInMethod.js
+++ b/tests/baselines/reference/noCollisionThisExpressionAndLocalVarInMethod.js
@@ -23,7 +23,7 @@ class a {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/noImplicitAnyDestructuringInPrivateMethod.js b/tests/baselines/reference/noImplicitAnyDestructuringInPrivateMethod.js
index 8f98404eabb37..09ce51a738106 100644
--- a/tests/baselines/reference/noImplicitAnyDestructuringInPrivateMethod.js
+++ b/tests/baselines/reference/noImplicitAnyDestructuringInPrivateMethod.js
@@ -16,7 +16,7 @@ export declare class Bar2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/noImplicitAnyForMethodParameters.js b/tests/baselines/reference/noImplicitAnyForMethodParameters.js
index ba103f863c399..15dc1740e96bd 100644
--- a/tests/baselines/reference/noImplicitAnyForMethodParameters.js
+++ b/tests/baselines/reference/noImplicitAnyForMethodParameters.js
@@ -18,7 +18,7 @@ class D {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/noImplicitAnyParametersInClass.js b/tests/baselines/reference/noImplicitAnyParametersInClass.js
index 6b46d090091a5..bbd6454c49463 100644
--- a/tests/baselines/reference/noImplicitAnyParametersInClass.js
+++ b/tests/baselines/reference/noImplicitAnyParametersInClass.js
@@ -95,7 +95,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/noTypeArgumentOnReturnType1.js b/tests/baselines/reference/noTypeArgumentOnReturnType1.js
index 0a6c0cab192bd..14ecf60ed5153 100644
--- a/tests/baselines/reference/noTypeArgumentOnReturnType1.js
+++ b/tests/baselines/reference/noTypeArgumentOnReturnType1.js
@@ -10,7 +10,7 @@ class A<T>{
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/noUnusedLocals_selfReference.js b/tests/baselines/reference/noUnusedLocals_selfReference.js
index 74a39923d574f..40bb319773a4f 100644
--- a/tests/baselines/reference/noUnusedLocals_selfReference.js
+++ b/tests/baselines/reference/noUnusedLocals_selfReference.js
@@ -18,12 +18,27 @@ P;
 
 //// [noUnusedLocals_selfReference.js]
 "use strict";
+var __names = (this && this.__names) || (function() {
+    var name = Object.defineProperty ? (function(proto, name) {
+        Object.defineProperty(proto[name], 'name', { 
+            value: name, configurable: true
+        });
+    }) : (function(proto, name) {
+        proto[name].name = name;
+    });
+    return function (proto, keys) {
+        for (var i = keys.length - 1; i >= 0; i--) {
+            name(proto, keys[i])
+        }
+    };
+})();
 exports.__esModule = true;
 function f() { f; }
 var C = (function () {
     function C() {
     }
     C.prototype.m = function () { C; };
+    __names(C.prototype, ["m"]);
     return C;
 }());
 var E;
@@ -37,6 +52,7 @@ var D = (function () {
     function D() {
     }
     D.prototype.m = function () { g; };
+    __names(D.prototype, ["m"]);
     return D;
 }());
 // Does not work on private methods.
@@ -44,6 +60,7 @@ var P = (function () {
     function P() {
     }
     P.prototype.m = function () { this.m; };
+    __names(P.prototype, ["m"]);
     return P;
 }());
 P;
diff --git a/tests/baselines/reference/nonMergedDeclarationsAndOverloads.js b/tests/baselines/reference/nonMergedDeclarationsAndOverloads.js
index d4d5574751339..438832bcfda2d 100644
--- a/tests/baselines/reference/nonMergedDeclarationsAndOverloads.js
+++ b/tests/baselines/reference/nonMergedDeclarationsAndOverloads.js
@@ -12,7 +12,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations.js b/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations.js
index 747bb47e73ced..2bd145499e025 100644
--- a/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations.js
+++ b/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations.js
@@ -102,7 +102,7 @@ var b: { [x: number]: string; } = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js b/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js
index 0ca16f8dc91c8..b9b8c685b8bbd 100644
--- a/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js
+++ b/tests/baselines/reference/numericIndexerConstrainsPropertyDeclarations2.js
@@ -50,7 +50,7 @@ var b: { [x: number]: A } = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/numericIndexerConstraint1.js b/tests/baselines/reference/numericIndexerConstraint1.js
index 8598b71c118d1..6e8d97bc24cc8 100644
--- a/tests/baselines/reference/numericIndexerConstraint1.js
+++ b/tests/baselines/reference/numericIndexerConstraint1.js
@@ -8,7 +8,7 @@ var result: Foo = x["one"]; // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/numericIndexerConstraint2.js b/tests/baselines/reference/numericIndexerConstraint2.js
index feaba238cc044..804a705fc1dca 100644
--- a/tests/baselines/reference/numericIndexerConstraint2.js
+++ b/tests/baselines/reference/numericIndexerConstraint2.js
@@ -8,7 +8,7 @@ x = a;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectCreationOfElementAccessExpression.js b/tests/baselines/reference/objectCreationOfElementAccessExpression.js
index d1dc0daeb131f..6b0c55dbe407e 100644
--- a/tests/baselines/reference/objectCreationOfElementAccessExpression.js
+++ b/tests/baselines/reference/objectCreationOfElementAccessExpression.js
@@ -59,7 +59,7 @@ var foods2: MonsterFood[] = new PetFood[new IceCream('Mint chocolate chip') , Co
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectRestParameterES5.js b/tests/baselines/reference/objectRestParameterES5.js
index 333c52710cae0..397885a9311d3 100644
--- a/tests/baselines/reference/objectRestParameterES5.js
+++ b/tests/baselines/reference/objectRestParameterES5.js
@@ -25,7 +25,7 @@ foobar({ bar: { greeting: 'hello' } });
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectSpread.js b/tests/baselines/reference/objectSpread.js
index 56e49cdb9f18b..81e6aa14d54a8 100644
--- a/tests/baselines/reference/objectSpread.js
+++ b/tests/baselines/reference/objectSpread.js
@@ -86,7 +86,7 @@ let spreadNonPrimitive = { ...<object>{}};
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectSpreadNegative.js b/tests/baselines/reference/objectSpreadNegative.js
index 8c8d65110a83c..0a5412a3aba38 100644
--- a/tests/baselines/reference/objectSpreadNegative.js
+++ b/tests/baselines/reference/objectSpreadNegative.js
@@ -88,7 +88,7 @@ const a3: A = { ...extra3 }; // same here
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js b/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js
index b8d90e27d8949..9fdbbcc5f5d4e 100644
--- a/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js
+++ b/tests/baselines/reference/objectTypeHidingMembersOfExtendedObject.js
@@ -68,7 +68,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypeHidingMembersOfObject.js b/tests/baselines/reference/objectTypeHidingMembersOfObject.js
index 4e1bfbad11fe5..a0aa47872f975 100644
--- a/tests/baselines/reference/objectTypeHidingMembersOfObject.js
+++ b/tests/baselines/reference/objectTypeHidingMembersOfObject.js
@@ -32,7 +32,7 @@ var r4: void = b.valueOf();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat.js b/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat.js
index 65bebfd628657..1c4b4bc2c7d2e 100644
--- a/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat.js
+++ b/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat.js
@@ -25,7 +25,7 @@ a = o; // ok
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat2.js b/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat2.js
index 0fbc932027327..7acacf3d8b25c 100644
--- a/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat2.js
+++ b/tests/baselines/reference/objectTypeHidingMembersOfObjectAssignmentCompat2.js
@@ -25,7 +25,7 @@ a = o; // ok
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithCallSignatures.js b/tests/baselines/reference/objectTypesIdentityWithCallSignatures.js
index 01a3178b198b0..bbb6b24c68eeb 100644
--- a/tests/baselines/reference/objectTypesIdentityWithCallSignatures.js
+++ b/tests/baselines/reference/objectTypesIdentityWithCallSignatures.js
@@ -105,7 +105,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithCallSignatures2.js b/tests/baselines/reference/objectTypesIdentityWithCallSignatures2.js
index a50c1b0a4d6cb..12cfb660061b1 100644
--- a/tests/baselines/reference/objectTypesIdentityWithCallSignatures2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithCallSignatures2.js
@@ -105,7 +105,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithCallSignaturesDifferingParamCounts.js b/tests/baselines/reference/objectTypesIdentityWithCallSignaturesDifferingParamCounts.js
index af45d5726e1a5..6ee10c9806557 100644
--- a/tests/baselines/reference/objectTypesIdentityWithCallSignaturesDifferingParamCounts.js
+++ b/tests/baselines/reference/objectTypesIdentityWithCallSignaturesDifferingParamCounts.js
@@ -105,7 +105,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithCallSignaturesWithOverloads.js b/tests/baselines/reference/objectTypesIdentityWithCallSignaturesWithOverloads.js
index 8e17c0def5f99..551e40ee140a1 100644
--- a/tests/baselines/reference/objectTypesIdentityWithCallSignaturesWithOverloads.js
+++ b/tests/baselines/reference/objectTypesIdentityWithCallSignaturesWithOverloads.js
@@ -121,7 +121,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures.js
index 6052c106f0f05..c7a41666e1afb 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures.js
@@ -105,7 +105,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures2.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures2.js
index 93460429a25f7..902fb622a5422 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignatures2.js
@@ -105,7 +105,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints.js
index c456df6bb95ff..7ae2c0111982b 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints.js
@@ -109,7 +109,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints2.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints2.js
index edae16682f362..166576aa9a7f7 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints2.js
@@ -121,7 +121,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints3.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints3.js
index 6055e11b5e091..671ad76dddf0e 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints3.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByConstraints3.js
@@ -130,7 +130,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType.js
index 1969f5b6ef739..4862c6abb6aa2 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType.js
@@ -109,7 +109,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType2.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType2.js
index 79258ae678ae9..23d79fd92c6d1 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingByReturnType2.js
@@ -109,7 +109,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterCounts.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterCounts.js
index 41ccc9db1a792..fcd059ad69fab 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterCounts.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterCounts.js
@@ -105,7 +105,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterNames.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterNames.js
index 6d6814a8c59f5..d7cf22a178104 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterNames.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesDifferingTypeParameterNames.js
@@ -105,7 +105,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams.js
index 004ebd9f4d8b2..81afdb42697ad 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams.js
@@ -109,7 +109,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams2.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams2.js
index 3a4f0f84a7a2c..d0b8d4906ac57 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams2.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams2.js
@@ -109,7 +109,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams3.js b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams3.js
index e6b76b836f5a3..843cbc1caf240 100644
--- a/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams3.js
+++ b/tests/baselines/reference/objectTypesIdentityWithGenericCallSignaturesOptionalParams3.js
@@ -109,7 +109,7 @@ function foo15(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/objectTypesWithOptionalProperties2.js b/tests/baselines/reference/objectTypesWithOptionalProperties2.js
index 105b84f8665df..df23950250ca0 100644
--- a/tests/baselines/reference/objectTypesWithOptionalProperties2.js
+++ b/tests/baselines/reference/objectTypesWithOptionalProperties2.js
@@ -31,7 +31,7 @@ var b = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/optionalArgsWithDefaultValues.js b/tests/baselines/reference/optionalArgsWithDefaultValues.js
index 2df38f084d9f1..27b4adcac9718 100644
--- a/tests/baselines/reference/optionalArgsWithDefaultValues.js
+++ b/tests/baselines/reference/optionalArgsWithDefaultValues.js
@@ -13,7 +13,7 @@ var b = (x, y?:number = 2) => { x; };
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/optionalConstructorArgInSuper.js b/tests/baselines/reference/optionalConstructorArgInSuper.js
index a321412c28324..e64a0ed21e02c 100644
--- a/tests/baselines/reference/optionalConstructorArgInSuper.js
+++ b/tests/baselines/reference/optionalConstructorArgInSuper.js
@@ -14,7 +14,7 @@ d2.foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/optionalMethods.js b/tests/baselines/reference/optionalMethods.js
index 2703f216d4cab..da23869b1c63c 100644
--- a/tests/baselines/reference/optionalMethods.js
+++ b/tests/baselines/reference/optionalMethods.js
@@ -60,7 +60,7 @@ class Derived extends Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/optionalParamArgsTest.js b/tests/baselines/reference/optionalParamArgsTest.js
index cdb3c7a0f4620..c1f4d997a35a9 100644
--- a/tests/baselines/reference/optionalParamArgsTest.js
+++ b/tests/baselines/reference/optionalParamArgsTest.js
@@ -128,7 +128,7 @@ fnOpt2(1, [2, 3], [1], true);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/optionalParamInOverride.js b/tests/baselines/reference/optionalParamInOverride.js
index 9be1e47e0d2e3..a477e6d7d1c24 100644
--- a/tests/baselines/reference/optionalParamInOverride.js
+++ b/tests/baselines/reference/optionalParamInOverride.js
@@ -11,7 +11,7 @@ class Y extends Z {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/out-flag.js b/tests/baselines/reference/out-flag.js
index 2ac1ae636fe16..800fd75889ac1 100644
--- a/tests/baselines/reference/out-flag.js
+++ b/tests/baselines/reference/out-flag.js
@@ -21,7 +21,7 @@ class MyClass
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/out-flag.sourcemap.txt b/tests/baselines/reference/out-flag.sourcemap.txt
index 5659e3a7bd444..05ab41f4a4cbf 100644
--- a/tests/baselines/reference/out-flag.sourcemap.txt
+++ b/tests/baselines/reference/out-flag.sourcemap.txt
@@ -20,7 +20,7 @@ sourceFile:out-flag.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/overloadConsecutiveness.js b/tests/baselines/reference/overloadConsecutiveness.js
index 519bc8e33eea4..576b6cd93ce1a 100644
--- a/tests/baselines/reference/overloadConsecutiveness.js
+++ b/tests/baselines/reference/overloadConsecutiveness.js
@@ -17,7 +17,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadModifiersMustAgree.js b/tests/baselines/reference/overloadModifiersMustAgree.js
index 0b051ad36f0b0..2b1be5cac26f8 100644
--- a/tests/baselines/reference/overloadModifiersMustAgree.js
+++ b/tests/baselines/reference/overloadModifiersMustAgree.js
@@ -20,7 +20,7 @@ interface I {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks1.js b/tests/baselines/reference/overloadOnConstConstraintChecks1.js
index 1b466da8659e3..f11ad8011bbbe 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks1.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks1.js
@@ -26,7 +26,7 @@ class D implements MyDoc {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks2.js b/tests/baselines/reference/overloadOnConstConstraintChecks2.js
index 485617d000876..bccfaf870c208 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks2.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks2.js
@@ -25,7 +25,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks3.js b/tests/baselines/reference/overloadOnConstConstraintChecks3.js
index 3cee3d0d435b0..29a9aa2514737 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks3.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks3.js
@@ -26,7 +26,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadOnConstConstraintChecks4.js b/tests/baselines/reference/overloadOnConstConstraintChecks4.js
index 6d8e660b56eb8..c0882d297cb6f 100644
--- a/tests/baselines/reference/overloadOnConstConstraintChecks4.js
+++ b/tests/baselines/reference/overloadOnConstConstraintChecks4.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadOnConstInBaseWithBadImplementationInDerived.js b/tests/baselines/reference/overloadOnConstInBaseWithBadImplementationInDerived.js
index da7c4b197a246..20f1daee1b1c9 100644
--- a/tests/baselines/reference/overloadOnConstInBaseWithBadImplementationInDerived.js
+++ b/tests/baselines/reference/overloadOnConstInBaseWithBadImplementationInDerived.js
@@ -12,7 +12,7 @@ class C implements I {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadOnConstInCallback1.js b/tests/baselines/reference/overloadOnConstInCallback1.js
index d9a1b3eb18e53..c9bc7da22da40 100644
--- a/tests/baselines/reference/overloadOnConstInCallback1.js
+++ b/tests/baselines/reference/overloadOnConstInCallback1.js
@@ -13,7 +13,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadOnConstInheritance4.js b/tests/baselines/reference/overloadOnConstInheritance4.js
index 8cac3643f8cff..00228284efe8a 100644
--- a/tests/baselines/reference/overloadOnConstInheritance4.js
+++ b/tests/baselines/reference/overloadOnConstInheritance4.js
@@ -13,7 +13,7 @@ class C implements I {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadOnConstNoAnyImplementation2.js b/tests/baselines/reference/overloadOnConstNoAnyImplementation2.js
index 364899a14bcb4..8351bcfe5dd53 100644
--- a/tests/baselines/reference/overloadOnConstNoAnyImplementation2.js
+++ b/tests/baselines/reference/overloadOnConstNoAnyImplementation2.js
@@ -25,7 +25,7 @@ c.x1(1, (x: number) => { return 1; } );
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadOnConstNoNonSpecializedSignature.js b/tests/baselines/reference/overloadOnConstNoNonSpecializedSignature.js
index 09c8635c50c1e..a86d480769e4a 100644
--- a/tests/baselines/reference/overloadOnConstNoNonSpecializedSignature.js
+++ b/tests/baselines/reference/overloadOnConstNoNonSpecializedSignature.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadOnConstNoStringImplementation2.js b/tests/baselines/reference/overloadOnConstNoStringImplementation2.js
index db7365a46f6e1..0b5f8b6eab388 100644
--- a/tests/baselines/reference/overloadOnConstNoStringImplementation2.js
+++ b/tests/baselines/reference/overloadOnConstNoStringImplementation2.js
@@ -24,7 +24,7 @@ c.x1(1, (x: number) => { return 1; } );
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js b/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js
index 5632b76d6a317..9657c238e6aae 100644
--- a/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js
+++ b/tests/baselines/reference/overloadOnConstantsInvalidOverload1.js
@@ -15,7 +15,7 @@ foo("HI");
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadResolutionOnDefaultConstructor1.js b/tests/baselines/reference/overloadResolutionOnDefaultConstructor1.js
index 1f816352b50e8..bec3e0cfd9da7 100644
--- a/tests/baselines/reference/overloadResolutionOnDefaultConstructor1.js
+++ b/tests/baselines/reference/overloadResolutionOnDefaultConstructor1.js
@@ -9,7 +9,7 @@ class Bar {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadingOnConstants1.js b/tests/baselines/reference/overloadingOnConstants1.js
index 0a67c6299f52f..77e2eaea067cd 100644
--- a/tests/baselines/reference/overloadingOnConstants1.js
+++ b/tests/baselines/reference/overloadingOnConstants1.js
@@ -29,7 +29,7 @@ var htmlSpanElement2: Derived1 = d2.createElement("span");
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overloadsWithinClasses.js b/tests/baselines/reference/overloadsWithinClasses.js
index f12dd107312d7..dd2f0187a91c7 100644
--- a/tests/baselines/reference/overloadsWithinClasses.js
+++ b/tests/baselines/reference/overloadsWithinClasses.js
@@ -27,7 +27,7 @@ class X {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/overrideBaseIntersectionMethod.js b/tests/baselines/reference/overrideBaseIntersectionMethod.js
index 1c637a1f9fe8a..45205d5290aa3 100644
--- a/tests/baselines/reference/overrideBaseIntersectionMethod.js
+++ b/tests/baselines/reference/overrideBaseIntersectionMethod.js
@@ -46,7 +46,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parameterInitializersForwardReferencing.js b/tests/baselines/reference/parameterInitializersForwardReferencing.js
index 9ec7288dbc8fd..30c703fd9a243 100644
--- a/tests/baselines/reference/parameterInitializersForwardReferencing.js
+++ b/tests/baselines/reference/parameterInitializersForwardReferencing.js
@@ -45,7 +45,7 @@ function f(a, b = function () { return c; }, c = b()) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parameterNamesInTypeParameterList.js b/tests/baselines/reference/parameterNamesInTypeParameterList.js
index 808fe980dea3f..1b4823c22432e 100644
--- a/tests/baselines/reference/parameterNamesInTypeParameterList.js
+++ b/tests/baselines/reference/parameterNamesInTypeParameterList.js
@@ -27,7 +27,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parameterPropertyOutsideConstructor.js b/tests/baselines/reference/parameterPropertyOutsideConstructor.js
index 3904c5f9ba98a..e9b894279ed1b 100644
--- a/tests/baselines/reference/parameterPropertyOutsideConstructor.js
+++ b/tests/baselines/reference/parameterPropertyOutsideConstructor.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parametersWithNoAnnotationAreAny.js b/tests/baselines/reference/parametersWithNoAnnotationAreAny.js
index edd5b2eb3e6a9..ff3ac63cb3730 100644
--- a/tests/baselines/reference/parametersWithNoAnnotationAreAny.js
+++ b/tests/baselines/reference/parametersWithNoAnnotationAreAny.js
@@ -33,7 +33,7 @@ var b = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parser509667.js b/tests/baselines/reference/parser509667.js
index cb3561ec4b308..3f7e4d64b6a51 100644
--- a/tests/baselines/reference/parser509667.js
+++ b/tests/baselines/reference/parser509667.js
@@ -15,7 +15,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parser553699.js b/tests/baselines/reference/parser553699.js
index 21bdb63a2bc33..034faa4e4ec28 100644
--- a/tests/baselines/reference/parser553699.js
+++ b/tests/baselines/reference/parser553699.js
@@ -12,7 +12,7 @@ class Bar {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parser618973.js b/tests/baselines/reference/parser618973.js
index e3f1dfd1f959a..5edb424fc47c4 100644
--- a/tests/baselines/reference/parser618973.js
+++ b/tests/baselines/reference/parser618973.js
@@ -9,7 +9,7 @@ export export class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserAstSpans1.js b/tests/baselines/reference/parserAstSpans1.js
index 7ef97bd74dd4b..26679761d40af 100644
--- a/tests/baselines/reference/parserAstSpans1.js
+++ b/tests/baselines/reference/parserAstSpans1.js
@@ -223,7 +223,7 @@ class c6 extends c5 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserClass1.js b/tests/baselines/reference/parserClass1.js
index dc4e0c1d51073..883e54274dabb 100644
--- a/tests/baselines/reference/parserClass1.js
+++ b/tests/baselines/reference/parserClass1.js
@@ -14,7 +14,7 @@
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserClassDeclaration11.js b/tests/baselines/reference/parserClassDeclaration11.js
index 83b356419dade..c72875b9312f0 100644
--- a/tests/baselines/reference/parserClassDeclaration11.js
+++ b/tests/baselines/reference/parserClassDeclaration11.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserClassDeclaration13.js b/tests/baselines/reference/parserClassDeclaration13.js
index 3e18333b7c843..625627fc1132c 100644
--- a/tests/baselines/reference/parserClassDeclaration13.js
+++ b/tests/baselines/reference/parserClassDeclaration13.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserClassDeclaration16.js b/tests/baselines/reference/parserClassDeclaration16.js
index ddccb1d445f2f..1ff7dd9695c46 100644
--- a/tests/baselines/reference/parserClassDeclaration16.js
+++ b/tests/baselines/reference/parserClassDeclaration16.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserClassDeclaration19.js b/tests/baselines/reference/parserClassDeclaration19.js
index b6fe222c7f37f..43dcba5c9c7ff 100644
--- a/tests/baselines/reference/parserClassDeclaration19.js
+++ b/tests/baselines/reference/parserClassDeclaration19.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserClassDeclaration20.js b/tests/baselines/reference/parserClassDeclaration20.js
index 23cbff954ec6a..1d0fc9bad71ed 100644
--- a/tests/baselines/reference/parserClassDeclaration20.js
+++ b/tests/baselines/reference/parserClassDeclaration20.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserClassDeclaration21.js b/tests/baselines/reference/parserClassDeclaration21.js
index 61c4d25dbcf53..e6f87578da338 100644
--- a/tests/baselines/reference/parserClassDeclaration21.js
+++ b/tests/baselines/reference/parserClassDeclaration21.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserClassDeclaration22.js b/tests/baselines/reference/parserClassDeclaration22.js
index 2703e882479a0..3dda3589909d1 100644
--- a/tests/baselines/reference/parserClassDeclaration22.js
+++ b/tests/baselines/reference/parserClassDeclaration22.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserES5ComputedPropertyName3.js b/tests/baselines/reference/parserES5ComputedPropertyName3.js
index 2d2867cee5dff..b4d53fee7d6ee 100644
--- a/tests/baselines/reference/parserES5ComputedPropertyName3.js
+++ b/tests/baselines/reference/parserES5ComputedPropertyName3.js
@@ -5,7 +5,7 @@ var v = { [e]() { } };
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserES5SymbolProperty7.js b/tests/baselines/reference/parserES5SymbolProperty7.js
index f147c0a03aa01..4e57b94fa1ef3 100644
--- a/tests/baselines/reference/parserES5SymbolProperty7.js
+++ b/tests/baselines/reference/parserES5SymbolProperty7.js
@@ -7,7 +7,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserErrantSemicolonInClass1.js b/tests/baselines/reference/parserErrantSemicolonInClass1.js
index e294b308a30c7..3a2dbf9a83112 100644
--- a/tests/baselines/reference/parserErrantSemicolonInClass1.js
+++ b/tests/baselines/reference/parserErrantSemicolonInClass1.js
@@ -39,7 +39,7 @@ class a {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement1.js b/tests/baselines/reference/parserErrorRecoveryIfStatement1.js
index 1aada6507a708..50193f0b69d98 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement1.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement1.js
@@ -13,7 +13,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement2.js b/tests/baselines/reference/parserErrorRecoveryIfStatement2.js
index c5da613c2796b..2effdfef38014 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement2.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement2.js
@@ -13,7 +13,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement3.js b/tests/baselines/reference/parserErrorRecoveryIfStatement3.js
index 01144e18c9f6b..89147592486a6 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement3.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement3.js
@@ -13,7 +13,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement4.js b/tests/baselines/reference/parserErrorRecoveryIfStatement4.js
index 2a9310214d856..aac8d07dfb45b 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement4.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement4.js
@@ -13,7 +13,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement5.js b/tests/baselines/reference/parserErrorRecoveryIfStatement5.js
index 1239d992a34ac..e5dd3a2603850 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement5.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement5.js
@@ -13,7 +13,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserErrorRecoveryIfStatement6.js b/tests/baselines/reference/parserErrorRecoveryIfStatement6.js
index 97888b6a84183..873ad38357094 100644
--- a/tests/baselines/reference/parserErrorRecoveryIfStatement6.js
+++ b/tests/baselines/reference/parserErrorRecoveryIfStatement6.js
@@ -14,7 +14,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserErrorRecovery_Block3.js b/tests/baselines/reference/parserErrorRecovery_Block3.js
index a4e068f1192f2..75f9ee14b7b2d 100644
--- a/tests/baselines/reference/parserErrorRecovery_Block3.js
+++ b/tests/baselines/reference/parserErrorRecovery_Block3.js
@@ -10,7 +10,7 @@ class C  {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable1.js b/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable1.js
index faecf0f05a207..21079c6e30758 100644
--- a/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable1.js
+++ b/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable1.js
@@ -32,7 +32,7 @@ var dist = p.getDist();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable2.js b/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable2.js
index 1ba61fb18222e..491145631f4b8 100644
--- a/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable2.js
+++ b/tests/baselines/reference/parserErrorRecovery_IncompleteMemberVariable2.js
@@ -32,7 +32,7 @@ var dist = p.getDist();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserMemberFunctionDeclaration1.js b/tests/baselines/reference/parserMemberFunctionDeclaration1.js
index afd699cd0c4f9..aabfa55336ff6 100644
--- a/tests/baselines/reference/parserMemberFunctionDeclaration1.js
+++ b/tests/baselines/reference/parserMemberFunctionDeclaration1.js
@@ -7,7 +7,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserMemberFunctionDeclaration4.js b/tests/baselines/reference/parserMemberFunctionDeclaration4.js
index f2acf1018bc03..8141c2ea80a60 100644
--- a/tests/baselines/reference/parserMemberFunctionDeclaration4.js
+++ b/tests/baselines/reference/parserMemberFunctionDeclaration4.js
@@ -7,7 +7,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserMemberFunctionDeclaration5.js b/tests/baselines/reference/parserMemberFunctionDeclaration5.js
index e018e44ad7724..784f2aacec4e4 100644
--- a/tests/baselines/reference/parserMemberFunctionDeclaration5.js
+++ b/tests/baselines/reference/parserMemberFunctionDeclaration5.js
@@ -7,7 +7,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserMemberFunctionDeclarationAmbiguities1.js b/tests/baselines/reference/parserMemberFunctionDeclarationAmbiguities1.js
index 424bd93e70483..70c152bef9b4c 100644
--- a/tests/baselines/reference/parserMemberFunctionDeclarationAmbiguities1.js
+++ b/tests/baselines/reference/parserMemberFunctionDeclarationAmbiguities1.js
@@ -17,7 +17,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserMissingLambdaOpenBrace1.js b/tests/baselines/reference/parserMissingLambdaOpenBrace1.js
index 36c2e80b9f9da..642e55202904b 100644
--- a/tests/baselines/reference/parserMissingLambdaOpenBrace1.js
+++ b/tests/baselines/reference/parserMissingLambdaOpenBrace1.js
@@ -12,7 +12,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserParameterList1.js b/tests/baselines/reference/parserParameterList1.js
index 015e0a4d2c20a..9209d9ee9df28 100644
--- a/tests/baselines/reference/parserParameterList1.js
+++ b/tests/baselines/reference/parserParameterList1.js
@@ -7,7 +7,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserParameterList10.js b/tests/baselines/reference/parserParameterList10.js
index a44f1fa5e32d5..25d6809cd47c8 100644
--- a/tests/baselines/reference/parserParameterList10.js
+++ b/tests/baselines/reference/parserParameterList10.js
@@ -7,7 +7,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserParameterList16.js b/tests/baselines/reference/parserParameterList16.js
index c4e156c17fa7f..eb53cd39b7a25 100644
--- a/tests/baselines/reference/parserParameterList16.js
+++ b/tests/baselines/reference/parserParameterList16.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserParameterList2.js b/tests/baselines/reference/parserParameterList2.js
index 73351eac79eb1..58817cdc383c8 100644
--- a/tests/baselines/reference/parserParameterList2.js
+++ b/tests/baselines/reference/parserParameterList2.js
@@ -7,7 +7,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserParameterList3.js b/tests/baselines/reference/parserParameterList3.js
index 0ac53eeffefbe..2c25032054cde 100644
--- a/tests/baselines/reference/parserParameterList3.js
+++ b/tests/baselines/reference/parserParameterList3.js
@@ -7,7 +7,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserParameterList9.js b/tests/baselines/reference/parserParameterList9.js
index 8e1e92f8ce816..24391faaf094a 100644
--- a/tests/baselines/reference/parserParameterList9.js
+++ b/tests/baselines/reference/parserParameterList9.js
@@ -7,7 +7,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserRealSource1.js b/tests/baselines/reference/parserRealSource1.js
index 3bd1e926839f9..d03d859c31369 100644
--- a/tests/baselines/reference/parserRealSource1.js
+++ b/tests/baselines/reference/parserRealSource1.js
@@ -160,7 +160,7 @@ module TypeScript {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserRealSource10.js b/tests/baselines/reference/parserRealSource10.js
index c7c4fd5effab4..a6b7cc9874ea3 100644
--- a/tests/baselines/reference/parserRealSource10.js
+++ b/tests/baselines/reference/parserRealSource10.js
@@ -461,7 +461,7 @@ module TypeScript {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserRealSource11.js b/tests/baselines/reference/parserRealSource11.js
index f0afc72c13562..b85d29c4f0c8b 100644
--- a/tests/baselines/reference/parserRealSource11.js
+++ b/tests/baselines/reference/parserRealSource11.js
@@ -2380,7 +2380,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserRealSource12.js b/tests/baselines/reference/parserRealSource12.js
index de2f0bcc4a32d..bae2689f00e76 100644
--- a/tests/baselines/reference/parserRealSource12.js
+++ b/tests/baselines/reference/parserRealSource12.js
@@ -536,7 +536,7 @@ module TypeScript {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserRealSource14.js b/tests/baselines/reference/parserRealSource14.js
index 86786c8f67825..159ac51dca2ad 100644
--- a/tests/baselines/reference/parserRealSource14.js
+++ b/tests/baselines/reference/parserRealSource14.js
@@ -581,7 +581,7 @@ module TypeScript {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserRealSource4.js b/tests/baselines/reference/parserRealSource4.js
index 1b2f8eb5fa1f6..3efc6e6fbf556 100644
--- a/tests/baselines/reference/parserRealSource4.js
+++ b/tests/baselines/reference/parserRealSource4.js
@@ -301,7 +301,7 @@ module TypeScript {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserRealSource5.js b/tests/baselines/reference/parserRealSource5.js
index a08f8ccb73b31..cb496568f7e05 100644
--- a/tests/baselines/reference/parserRealSource5.js
+++ b/tests/baselines/reference/parserRealSource5.js
@@ -72,7 +72,7 @@ module TypeScript {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserRealSource6.js b/tests/baselines/reference/parserRealSource6.js
index cce9fd32aa4ac..5348bbb7c263b 100644
--- a/tests/baselines/reference/parserRealSource6.js
+++ b/tests/baselines/reference/parserRealSource6.js
@@ -227,7 +227,7 @@ module TypeScript {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserRealSource8.js b/tests/baselines/reference/parserRealSource8.js
index b813855eeb779..8d2d47ed7ac08 100644
--- a/tests/baselines/reference/parserRealSource8.js
+++ b/tests/baselines/reference/parserRealSource8.js
@@ -472,7 +472,7 @@ module TypeScript {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserRealSource9.js b/tests/baselines/reference/parserRealSource9.js
index 7619c17c4bc13..f5f59146192c0 100644
--- a/tests/baselines/reference/parserRealSource9.js
+++ b/tests/baselines/reference/parserRealSource9.js
@@ -215,7 +215,7 @@ module TypeScript {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserSuperExpression1.js b/tests/baselines/reference/parserSuperExpression1.js
index 74bfa264c55fa..78eb8b08ffbc6 100644
--- a/tests/baselines/reference/parserSuperExpression1.js
+++ b/tests/baselines/reference/parserSuperExpression1.js
@@ -17,7 +17,7 @@ module M1.M2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserSuperExpression2.js b/tests/baselines/reference/parserSuperExpression2.js
index 5b3349e98c77f..87384d1436b2d 100644
--- a/tests/baselines/reference/parserSuperExpression2.js
+++ b/tests/baselines/reference/parserSuperExpression2.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserSuperExpression3.js b/tests/baselines/reference/parserSuperExpression3.js
index e994dc9be0655..6608813394316 100644
--- a/tests/baselines/reference/parserSuperExpression3.js
+++ b/tests/baselines/reference/parserSuperExpression3.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserSuperExpression4.js b/tests/baselines/reference/parserSuperExpression4.js
index 5ecfd475faa51..61c41d7cf21f7 100644
--- a/tests/baselines/reference/parserSuperExpression4.js
+++ b/tests/baselines/reference/parserSuperExpression4.js
@@ -17,7 +17,7 @@ module M1.M2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserharness.js b/tests/baselines/reference/parserharness.js
index 09be994d88ac9..14870d08e3240 100644
--- a/tests/baselines/reference/parserharness.js
+++ b/tests/baselines/reference/parserharness.js
@@ -2099,7 +2099,7 @@ module Harness {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parserindenter.js b/tests/baselines/reference/parserindenter.js
index 5fc4aaca9a768..6990d09c5ba0e 100644
--- a/tests/baselines/reference/parserindenter.js
+++ b/tests/baselines/reference/parserindenter.js
@@ -759,7 +759,7 @@ module Formatting {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/parsingClassRecoversWhenHittingUnexpectedSemicolon.js b/tests/baselines/reference/parsingClassRecoversWhenHittingUnexpectedSemicolon.js
index 96cbda63158b4..a165b127803e9 100644
--- a/tests/baselines/reference/parsingClassRecoversWhenHittingUnexpectedSemicolon.js
+++ b/tests/baselines/reference/parsingClassRecoversWhenHittingUnexpectedSemicolon.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/primitiveConstraints2.js b/tests/baselines/reference/primitiveConstraints2.js
index d333bd95b9558..4da71a5dc3116 100644
--- a/tests/baselines/reference/primitiveConstraints2.js
+++ b/tests/baselines/reference/primitiveConstraints2.js
@@ -13,7 +13,7 @@ x.bar2<string>(2, ""); // should error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/primitiveMembers.js b/tests/baselines/reference/primitiveMembers.js
index ec9c66e35b206..f4bb391aabe43 100644
--- a/tests/baselines/reference/primitiveMembers.js
+++ b/tests/baselines/reference/primitiveMembers.js
@@ -35,7 +35,7 @@ class foo extends baz { public bar(){ return undefined}; }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyClass.js b/tests/baselines/reference/privacyClass.js
index 5f5d2e807d7b6..aa4ccc268dddd 100644
--- a/tests/baselines/reference/privacyClass.js
+++ b/tests/baselines/reference/privacyClass.js
@@ -132,7 +132,7 @@ export class glo_C12_public extends glo_c_private implements  glo_i_private, glo
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js b/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js
index 10a5d57b9e258..0097e54245fb2 100644
--- a/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js
+++ b/tests/baselines/reference/privacyClassExtendsClauseDeclFile.js
@@ -101,7 +101,7 @@ class publicClassExtendingPublicClassInGlobal extends publicClassInGlobal {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -310,7 +310,7 @@ exports.publicClassExtendingFromPrivateModuleClass = publicClassExtendingFromPri
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyFunc.js b/tests/baselines/reference/privacyFunc.js
index 844c9747bb30b..81878175c5a5e 100644
--- a/tests/baselines/reference/privacyFunc.js
+++ b/tests/baselines/reference/privacyFunc.js
@@ -232,7 +232,7 @@ function f10_public(): C6_public {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js b/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js
index 03a235e954c1e..719cab13c7aa1 100644
--- a/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js
+++ b/tests/baselines/reference/privacyFunctionCannotNameParameterTypeDeclFile.js
@@ -210,7 +210,7 @@ exports.createExportedWidget4 = createExportedWidget4;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js b/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js
index a015f0cb3d1ab..02bc79bae7c17 100644
--- a/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js
+++ b/tests/baselines/reference/privacyFunctionCannotNameReturnTypeDeclFile.js
@@ -217,7 +217,7 @@ exports.createExportedWidget4 = createExportedWidget4;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyFunctionParameterDeclFile.js b/tests/baselines/reference/privacyFunctionParameterDeclFile.js
index 92ae70665859b..c30bf2f575c61 100644
--- a/tests/baselines/reference/privacyFunctionParameterDeclFile.js
+++ b/tests/baselines/reference/privacyFunctionParameterDeclFile.js
@@ -690,7 +690,7 @@ module publicModuleInGlobal {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -1063,7 +1063,7 @@ var privateModule;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyFunctionReturnTypeDeclFile.js b/tests/baselines/reference/privacyFunctionReturnTypeDeclFile.js
index 70d24560354f5..e2ee7046c1ea9 100644
--- a/tests/baselines/reference/privacyFunctionReturnTypeDeclFile.js
+++ b/tests/baselines/reference/privacyFunctionReturnTypeDeclFile.js
@@ -1197,7 +1197,7 @@ module publicModuleInGlobal {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -1855,7 +1855,7 @@ var privateModule;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyGetter.js b/tests/baselines/reference/privacyGetter.js
index 0ea2cb2aea8e3..c8f85cd2c002b 100644
--- a/tests/baselines/reference/privacyGetter.js
+++ b/tests/baselines/reference/privacyGetter.js
@@ -211,7 +211,7 @@ class C8_private {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyGloClass.js b/tests/baselines/reference/privacyGloClass.js
index 1d78afc065328..7953b7e96d7b4 100644
--- a/tests/baselines/reference/privacyGloClass.js
+++ b/tests/baselines/reference/privacyGloClass.js
@@ -64,7 +64,7 @@ class glo_C11_public extends glo_c_public implements glo_i_public {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyGloFunc.js b/tests/baselines/reference/privacyGloFunc.js
index 85eef926ac3b2..efef6cff8e958 100644
--- a/tests/baselines/reference/privacyGloFunc.js
+++ b/tests/baselines/reference/privacyGloFunc.js
@@ -534,7 +534,7 @@ export function f12_public(): C5_private { //error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyGloGetter.js b/tests/baselines/reference/privacyGloGetter.js
index da13e682ed519..100ec3b72a6c8 100644
--- a/tests/baselines/reference/privacyGloGetter.js
+++ b/tests/baselines/reference/privacyGloGetter.js
@@ -92,7 +92,7 @@ class C7_public {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyGloInterface.js b/tests/baselines/reference/privacyGloInterface.js
index 214e1447b4be7..439df1e4c52c0 100644
--- a/tests/baselines/reference/privacyGloInterface.js
+++ b/tests/baselines/reference/privacyGloInterface.js
@@ -123,7 +123,7 @@ interface glo_C3_public extends glo_i_public {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyGloVar.js b/tests/baselines/reference/privacyGloVar.js
index 56cb7bf091993..dfcdebdfc8c76 100644
--- a/tests/baselines/reference/privacyGloVar.js
+++ b/tests/baselines/reference/privacyGloVar.js
@@ -84,7 +84,7 @@ var glo_v22_public: glo_C1_public = new glo_C1_public();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyInterface.js b/tests/baselines/reference/privacyInterface.js
index 0f5477644f5da..7b330fc64f8ae 100644
--- a/tests/baselines/reference/privacyInterface.js
+++ b/tests/baselines/reference/privacyInterface.js
@@ -269,7 +269,7 @@ export interface glo_C6_public extends  glo_i_private, glo_i_public {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyTypeParameterOfFunction.js b/tests/baselines/reference/privacyTypeParameterOfFunction.js
index 0cf0c1308695d..2b8a041d77e20 100644
--- a/tests/baselines/reference/privacyTypeParameterOfFunction.js
+++ b/tests/baselines/reference/privacyTypeParameterOfFunction.js
@@ -137,7 +137,7 @@ function privateFunctionWithPublicTypeParametersWithoutExtends<T>() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyTypeParameterOfFunctionDeclFile.js b/tests/baselines/reference/privacyTypeParameterOfFunctionDeclFile.js
index 7763611c04fa6..b729e03d69569 100644
--- a/tests/baselines/reference/privacyTypeParameterOfFunctionDeclFile.js
+++ b/tests/baselines/reference/privacyTypeParameterOfFunctionDeclFile.js
@@ -443,7 +443,7 @@ module privateModule {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyTypeParametersOfClass.js b/tests/baselines/reference/privacyTypeParametersOfClass.js
index d0563c18bc356..56bb4bb125ef2 100644
--- a/tests/baselines/reference/privacyTypeParametersOfClass.js
+++ b/tests/baselines/reference/privacyTypeParametersOfClass.js
@@ -48,7 +48,7 @@ class privateClassWithPublicTypeParametersWithoutExtends<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyTypeParametersOfClassDeclFile.js b/tests/baselines/reference/privacyTypeParametersOfClassDeclFile.js
index cd19ff1a9b371..329c48c309eae 100644
--- a/tests/baselines/reference/privacyTypeParametersOfClassDeclFile.js
+++ b/tests/baselines/reference/privacyTypeParametersOfClassDeclFile.js
@@ -159,7 +159,7 @@ module privateModule {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privacyVar.js b/tests/baselines/reference/privacyVar.js
index 08ff572d565df..aa8ff4eb00821 100644
--- a/tests/baselines/reference/privacyVar.js
+++ b/tests/baselines/reference/privacyVar.js
@@ -179,7 +179,7 @@ export var glo_v24_public: glo_C2_private = new glo_C2_private(); // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privateAccessInSubclass1.js b/tests/baselines/reference/privateAccessInSubclass1.js
index 674400cefc08f..d817b27178066 100644
--- a/tests/baselines/reference/privateAccessInSubclass1.js
+++ b/tests/baselines/reference/privateAccessInSubclass1.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privateClassPropertyAccessibleWithinClass.js b/tests/baselines/reference/privateClassPropertyAccessibleWithinClass.js
index f0405b6e0fd89..c716fb70353fc 100644
--- a/tests/baselines/reference/privateClassPropertyAccessibleWithinClass.js
+++ b/tests/baselines/reference/privateClassPropertyAccessibleWithinClass.js
@@ -36,7 +36,7 @@ class C2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privateClassPropertyAccessibleWithinNestedClass.js b/tests/baselines/reference/privateClassPropertyAccessibleWithinNestedClass.js
index ef7ca929f7b96..6cb073e7c771e 100644
--- a/tests/baselines/reference/privateClassPropertyAccessibleWithinNestedClass.js
+++ b/tests/baselines/reference/privateClassPropertyAccessibleWithinNestedClass.js
@@ -42,7 +42,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privateInstanceMemberAccessibility.js b/tests/baselines/reference/privateInstanceMemberAccessibility.js
index c596a965c98f6..29c0218141eca 100644
--- a/tests/baselines/reference/privateInstanceMemberAccessibility.js
+++ b/tests/baselines/reference/privateInstanceMemberAccessibility.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privateInstanceVisibility.js b/tests/baselines/reference/privateInstanceVisibility.js
index f0d0b7781f426..88b5d4079e93a 100644
--- a/tests/baselines/reference/privateInstanceVisibility.js
+++ b/tests/baselines/reference/privateInstanceVisibility.js
@@ -42,7 +42,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js b/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js
index 052870699c016..dd25d51d4d6ca 100644
--- a/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js
+++ b/tests/baselines/reference/privateProtectedMembersAreNotAccessibleDestructuring.js
@@ -25,7 +25,7 @@ let { priv: a, prot: b, privateMethod: f } = k; // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privateVisibility.js b/tests/baselines/reference/privateVisibility.js
index c6f6b183e1603..173b8a2546439 100644
--- a/tests/baselines/reference/privateVisibility.js
+++ b/tests/baselines/reference/privateVisibility.js
@@ -30,7 +30,7 @@ c.priv; // should not work
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/privateVisibles.js b/tests/baselines/reference/privateVisibles.js
index 3eb2f2a940e08..7f14e468d1526 100644
--- a/tests/baselines/reference/privateVisibles.js
+++ b/tests/baselines/reference/privateVisibles.js
@@ -13,7 +13,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/li'b/class'A.js b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/li'b/class'A.js
index c8c28c1b17ec9..ef151d151e18b 100644
--- a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/li'b/class'A.js
+++ b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/amd/li'b/class'A.js
@@ -1,7 +1,7 @@
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/li'b/class'A.js b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/li'b/class'A.js
index c8c28c1b17ec9..ef151d151e18b 100644
--- a/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/li'b/class'A.js
+++ b/tests/baselines/reference/project/quotesInFileAndDirectoryNames/node/li'b/class'A.js
@@ -1,7 +1,7 @@
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/amd/fs.js b/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/amd/fs.js
index 0e02687758eee..263db881c0693 100644
--- a/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/amd/fs.js
+++ b/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/amd/fs.js
@@ -1,7 +1,7 @@
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/node/fs.js b/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/node/fs.js
index 0862e79ba46f9..a9e534c1893eb 100644
--- a/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/node/fs.js
+++ b/tests/baselines/reference/project/visibilityOfTypeUsedAcrossModules/node/fs.js
@@ -2,7 +2,7 @@
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/promiseChaining.js b/tests/baselines/reference/promiseChaining.js
index d6aad37fac584..e2d76fcb2dce5 100644
--- a/tests/baselines/reference/promiseChaining.js
+++ b/tests/baselines/reference/promiseChaining.js
@@ -15,7 +15,7 @@ class Chain<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/promiseChaining1.js b/tests/baselines/reference/promiseChaining1.js
index 6c180a9edb8d4..7e2be8631a3f9 100644
--- a/tests/baselines/reference/promiseChaining1.js
+++ b/tests/baselines/reference/promiseChaining1.js
@@ -14,7 +14,7 @@ class Chain2<T extends { length: number }> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/promiseChaining2.js b/tests/baselines/reference/promiseChaining2.js
index 8abf3ffb592df..aebe5e2be2a4c 100644
--- a/tests/baselines/reference/promiseChaining2.js
+++ b/tests/baselines/reference/promiseChaining2.js
@@ -14,7 +14,7 @@ class Chain2<T extends { length: number }> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints.js
index f2de7ef0bdc93..4ab3d6dc062ec 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints.js
@@ -40,7 +40,7 @@ var r4 = b.foo(new Date());
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js
index 906f29b5ef916..15b7b506f87b6 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints2.js
@@ -86,7 +86,7 @@ var r4 = b.foo(aB, aB); // no inferences for T so constraint isn't satisfied, er
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js
index 81adda9a81fce..f394bc1321db3 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints3.js
@@ -61,7 +61,7 @@ var r4 = b.foo(new B()); // valid call to an invalid function
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints4.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints4.js
index b3ee2cdb202c0..ff68bdcc574d2 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints4.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints4.js
@@ -36,7 +36,7 @@ var r4 = b.foo(new Date());
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js
index ed11e8ad89cc8..5ef2f73aa57df 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithConstraints5.js
@@ -48,7 +48,7 @@ var r4 = b.foo(new B()); // error after constraints above made illegal, doesn't
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/propertyAccessOnTypeParameterWithoutConstraints.js b/tests/baselines/reference/propertyAccessOnTypeParameterWithoutConstraints.js
index 48b4bb5721c33..22408798972c3 100644
--- a/tests/baselines/reference/propertyAccessOnTypeParameterWithoutConstraints.js
+++ b/tests/baselines/reference/propertyAccessOnTypeParameterWithoutConstraints.js
@@ -35,7 +35,7 @@ var r4 = b.foo(1);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/propertyAndFunctionWithSameName.js b/tests/baselines/reference/propertyAndFunctionWithSameName.js
index c1be699bfb6fc..7c14d4de2d13b 100644
--- a/tests/baselines/reference/propertyAndFunctionWithSameName.js
+++ b/tests/baselines/reference/propertyAndFunctionWithSameName.js
@@ -15,7 +15,7 @@ class D {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/propertyOrdering.js b/tests/baselines/reference/propertyOrdering.js
index 8a04f54c9ed68..ab3df5440bdfb 100644
--- a/tests/baselines/reference/propertyOrdering.js
+++ b/tests/baselines/reference/propertyOrdering.js
@@ -27,7 +27,7 @@ class Bar {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/propertyOrdering2.js b/tests/baselines/reference/propertyOrdering2.js
index 333341e6fb5a7..2cb65947b7ec4 100644
--- a/tests/baselines/reference/propertyOrdering2.js
+++ b/tests/baselines/reference/propertyOrdering2.js
@@ -12,7 +12,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinClass.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinClass.js
index ec481e63663b1..13a152c49bf92 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinClass.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinClass.js
@@ -36,7 +36,7 @@ class C2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedClass.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedClass.js
index 59fe80e8d49fb..d52c9a2dc802c 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedClass.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedClass.js
@@ -42,7 +42,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js
index ac96ed53b73e5..3ee5ffce964ca 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass.js
@@ -51,7 +51,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js
index 6ae95d3b88fcf..d3574e462ed8a 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinNestedSubclass1.js
@@ -118,7 +118,7 @@ d4.x;                   // Error, neither within their declaring class nor class
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js
index f6fcd987c9b58..1c544215a6e78 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass.js
@@ -34,7 +34,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js
index 257adeee0332b..30afff3c5dff7 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass2.js
@@ -98,7 +98,7 @@ d4.x;                   // Error, neither within their declaring class nor class
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js
index f4399126da30c..b0461be3ffc74 100644
--- a/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js
+++ b/tests/baselines/reference/protectedClassPropertyAccessibleWithinSubclass3.js
@@ -17,7 +17,7 @@ class Derived extends Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/protectedInstanceMemberAccessibility.js b/tests/baselines/reference/protectedInstanceMemberAccessibility.js
index 9a96d5a4d9735..68809dcecacfa 100644
--- a/tests/baselines/reference/protectedInstanceMemberAccessibility.js
+++ b/tests/baselines/reference/protectedInstanceMemberAccessibility.js
@@ -48,7 +48,7 @@ class C extends A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/protectedMembers.js b/tests/baselines/reference/protectedMembers.js
index 45e12fe8dc606..d3f313f4d8eb1 100644
--- a/tests/baselines/reference/protectedMembers.js
+++ b/tests/baselines/reference/protectedMembers.js
@@ -119,7 +119,7 @@ class B3 extends A3 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/quotedFunctionName1.js b/tests/baselines/reference/quotedFunctionName1.js
index 357a64fb3beca..18cb64d89e664 100644
--- a/tests/baselines/reference/quotedFunctionName1.js
+++ b/tests/baselines/reference/quotedFunctionName1.js
@@ -7,7 +7,7 @@ class Test1 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/quotedPropertyName3.js b/tests/baselines/reference/quotedPropertyName3.js
index 91d0345b8f725..e31feb6c897b7 100644
--- a/tests/baselines/reference/quotedPropertyName3.js
+++ b/tests/baselines/reference/quotedPropertyName3.js
@@ -11,7 +11,7 @@ class Test {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/readonlyInNonPropertyParameters.js b/tests/baselines/reference/readonlyInNonPropertyParameters.js
index 00b9ecc13b662..51dd79c3dfb74 100644
--- a/tests/baselines/reference/readonlyInNonPropertyParameters.js
+++ b/tests/baselines/reference/readonlyInNonPropertyParameters.js
@@ -12,7 +12,7 @@ class X {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/readonlyMembers.js b/tests/baselines/reference/readonlyMembers.js
index fcca7be8afb53..08d7ddc322262 100644
--- a/tests/baselines/reference/readonlyMembers.js
+++ b/tests/baselines/reference/readonlyMembers.js
@@ -69,7 +69,7 @@ yy["foo"] = "abc";
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/recursiveBaseConstructorCreation1.js b/tests/baselines/reference/recursiveBaseConstructorCreation1.js
index 7ce9933fd17b7..4c1b00d852a5b 100644
--- a/tests/baselines/reference/recursiveBaseConstructorCreation1.js
+++ b/tests/baselines/reference/recursiveBaseConstructorCreation1.js
@@ -10,7 +10,7 @@ var x = new C2(); // Valid
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/recursiveClassReferenceTest.js b/tests/baselines/reference/recursiveClassReferenceTest.js
index bd0ceccac9ff9..1c7539b1b9391 100644
--- a/tests/baselines/reference/recursiveClassReferenceTest.js
+++ b/tests/baselines/reference/recursiveClassReferenceTest.js
@@ -108,7 +108,7 @@ module Sample.Thing.Languages.PlainText {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt b/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt
index cb45f627c4365..d3526f5ae06fa 100644
--- a/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt
+++ b/tests/baselines/reference/recursiveClassReferenceTest.sourcemap.txt
@@ -29,7 +29,7 @@ sourceFile:recursiveClassReferenceTest.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/recursiveComplicatedClasses.js b/tests/baselines/reference/recursiveComplicatedClasses.js
index dae5d6ac3c0b7..b3104485eaf85 100644
--- a/tests/baselines/reference/recursiveComplicatedClasses.js
+++ b/tests/baselines/reference/recursiveComplicatedClasses.js
@@ -28,7 +28,7 @@ class TypeSymbol extends InferenceSymbol {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/recursiveInheritance3.js b/tests/baselines/reference/recursiveInheritance3.js
index 19df835af84b8..e26f60b833521 100644
--- a/tests/baselines/reference/recursiveInheritance3.js
+++ b/tests/baselines/reference/recursiveInheritance3.js
@@ -12,7 +12,7 @@ interface I extends C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/requireEmitSemicolon.js b/tests/baselines/reference/requireEmitSemicolon.js
index c76de6835abb0..472bf81689980 100644
--- a/tests/baselines/reference/requireEmitSemicolon.js
+++ b/tests/baselines/reference/requireEmitSemicolon.js
@@ -37,7 +37,7 @@ define(["require", "exports"], function (require, exports) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/requiredInitializedParameter2.js b/tests/baselines/reference/requiredInitializedParameter2.js
index 060b6781ba3a3..513ac59899fed 100644
--- a/tests/baselines/reference/requiredInitializedParameter2.js
+++ b/tests/baselines/reference/requiredInitializedParameter2.js
@@ -11,7 +11,7 @@ class C1 implements I1 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/requiredInitializedParameter3.js b/tests/baselines/reference/requiredInitializedParameter3.js
index 839426cf1f2ce..88b80a52355a2 100644
--- a/tests/baselines/reference/requiredInitializedParameter3.js
+++ b/tests/baselines/reference/requiredInitializedParameter3.js
@@ -11,7 +11,7 @@ class C1 implements I1 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/requiredInitializedParameter4.js b/tests/baselines/reference/requiredInitializedParameter4.js
index 807adff10a19a..25a399f39a23d 100644
--- a/tests/baselines/reference/requiredInitializedParameter4.js
+++ b/tests/baselines/reference/requiredInitializedParameter4.js
@@ -7,7 +7,7 @@ class C1 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js b/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js
index df4b206c61920..8e46584b979b5 100644
--- a/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js
+++ b/tests/baselines/reference/resolvingClassDeclarationWhenInBaseTypeResolution.js
@@ -1033,7 +1033,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/restParameterAssignmentCompatibility.js b/tests/baselines/reference/restParameterAssignmentCompatibility.js
index 95a9fa8a7b270..dcd705678eaba 100644
--- a/tests/baselines/reference/restParameterAssignmentCompatibility.js
+++ b/tests/baselines/reference/restParameterAssignmentCompatibility.js
@@ -30,7 +30,7 @@ t1 = s; // Similar to above, but optionality does not matter here.
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js b/tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js
index 36abda46dde20..5f8268c8f6b7c 100644
--- a/tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js
+++ b/tests/baselines/reference/restParameterWithoutAnnotationIsAnyArray.js
@@ -31,7 +31,7 @@ var b = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/restParametersOfNonArrayTypes.js b/tests/baselines/reference/restParametersOfNonArrayTypes.js
index 03f4d5515468b..b42f27550daab 100644
--- a/tests/baselines/reference/restParametersOfNonArrayTypes.js
+++ b/tests/baselines/reference/restParametersOfNonArrayTypes.js
@@ -30,7 +30,7 @@ var b = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/restParametersOfNonArrayTypes2.js b/tests/baselines/reference/restParametersOfNonArrayTypes2.js
index 2f3a6addadd47..d960080b34f13 100644
--- a/tests/baselines/reference/restParametersOfNonArrayTypes2.js
+++ b/tests/baselines/reference/restParametersOfNonArrayTypes2.js
@@ -62,7 +62,7 @@ var b2 = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/restParametersWithArrayTypeAnnotations.js b/tests/baselines/reference/restParametersWithArrayTypeAnnotations.js
index 0b0b7c262c305..50e2af38b7ac7 100644
--- a/tests/baselines/reference/restParametersWithArrayTypeAnnotations.js
+++ b/tests/baselines/reference/restParametersWithArrayTypeAnnotations.js
@@ -57,7 +57,7 @@ var b2 = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/returnInConstructor1.js b/tests/baselines/reference/returnInConstructor1.js
index 325034d21d996..3f28970149cfa 100644
--- a/tests/baselines/reference/returnInConstructor1.js
+++ b/tests/baselines/reference/returnInConstructor1.js
@@ -70,7 +70,7 @@ class I extends G {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/returnStatements.js b/tests/baselines/reference/returnStatements.js
index a89ca53311b74..8ba31780bd17d 100644
--- a/tests/baselines/reference/returnStatements.js
+++ b/tests/baselines/reference/returnStatements.js
@@ -28,7 +28,7 @@ function fn13(): C { return null; }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/returnTypeTypeArguments.js b/tests/baselines/reference/returnTypeTypeArguments.js
index dec5aad88b55a..7482726a3279c 100644
--- a/tests/baselines/reference/returnTypeTypeArguments.js
+++ b/tests/baselines/reference/returnTypeTypeArguments.js
@@ -80,7 +80,7 @@ declare var a: {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js b/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js
index 047c14bbf1c80..200ac03fd8512 100644
--- a/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js
+++ b/tests/baselines/reference/scopeCheckExtendedClassInsidePublicMethod2.js
@@ -22,7 +22,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/scopeCheckInsidePublicMethod1.js b/tests/baselines/reference/scopeCheckInsidePublicMethod1.js
index c4b6a5606f570..755a0c918a143 100644
--- a/tests/baselines/reference/scopeCheckInsidePublicMethod1.js
+++ b/tests/baselines/reference/scopeCheckInsidePublicMethod1.js
@@ -10,7 +10,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/scopeResolutionIdentifiers.js b/tests/baselines/reference/scopeResolutionIdentifiers.js
index f5315525c7e3c..7fe9c715946ca 100644
--- a/tests/baselines/reference/scopeResolutionIdentifiers.js
+++ b/tests/baselines/reference/scopeResolutionIdentifiers.js
@@ -43,7 +43,7 @@ module M3 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/selfInCallback.js b/tests/baselines/reference/selfInCallback.js
index 0636775eff693..82d83ab3b19d0 100644
--- a/tests/baselines/reference/selfInCallback.js
+++ b/tests/baselines/reference/selfInCallback.js
@@ -11,7 +11,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/selfInLambdas.js b/tests/baselines/reference/selfInLambdas.js
index e114cb5829437..deb3d4bf58ef7 100644
--- a/tests/baselines/reference/selfInLambdas.js
+++ b/tests/baselines/reference/selfInLambdas.js
@@ -50,7 +50,7 @@ class X {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/selfReferencesInFunctionParameters.js b/tests/baselines/reference/selfReferencesInFunctionParameters.js
index e5208d8907d37..7e820a98435df 100644
--- a/tests/baselines/reference/selfReferencesInFunctionParameters.js
+++ b/tests/baselines/reference/selfReferencesInFunctionParameters.js
@@ -17,7 +17,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/shadowPrivateMembers.js b/tests/baselines/reference/shadowPrivateMembers.js
index 8d888128a4f40..2ce217a4f8ca9 100644
--- a/tests/baselines/reference/shadowPrivateMembers.js
+++ b/tests/baselines/reference/shadowPrivateMembers.js
@@ -7,7 +7,7 @@ class derived extends base { private n() {} }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/sigantureIsSubTypeIfTheyAreIdentical.js b/tests/baselines/reference/sigantureIsSubTypeIfTheyAreIdentical.js
index cd15451c7db33..3f042bfd4cb66 100644
--- a/tests/baselines/reference/sigantureIsSubTypeIfTheyAreIdentical.js
+++ b/tests/baselines/reference/sigantureIsSubTypeIfTheyAreIdentical.js
@@ -12,7 +12,7 @@ class CacheService implements ICache { // Should not error that property type of
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/signatureInstantiationWithRecursiveConstraints.js b/tests/baselines/reference/signatureInstantiationWithRecursiveConstraints.js
index 77abf5d441ad2..755c6fdb76eb7 100644
--- a/tests/baselines/reference/signatureInstantiationWithRecursiveConstraints.js
+++ b/tests/baselines/reference/signatureInstantiationWithRecursiveConstraints.js
@@ -18,7 +18,7 @@ const myVar: Foo = new Bar();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMap-Comments.js b/tests/baselines/reference/sourceMap-Comments.js
index 3bb266598faf8..9b62a2ae7660a 100644
--- a/tests/baselines/reference/sourceMap-Comments.js
+++ b/tests/baselines/reference/sourceMap-Comments.js
@@ -24,7 +24,7 @@ module sas.tools {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMap-Comments.sourcemap.txt b/tests/baselines/reference/sourceMap-Comments.sourcemap.txt
index e8503301b02bc..13a6e3f4fde55 100644
--- a/tests/baselines/reference/sourceMap-Comments.sourcemap.txt
+++ b/tests/baselines/reference/sourceMap-Comments.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:sourceMap-Comments.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMap-FileWithComments.js b/tests/baselines/reference/sourceMap-FileWithComments.js
index d80dec6a2aec5..d106e02ffd2fd 100644
--- a/tests/baselines/reference/sourceMap-FileWithComments.js
+++ b/tests/baselines/reference/sourceMap-FileWithComments.js
@@ -39,7 +39,7 @@ var dist = p.getDist();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMap-FileWithComments.sourcemap.txt b/tests/baselines/reference/sourceMap-FileWithComments.sourcemap.txt
index bcd7d9e1878e6..db0f02129f746 100644
--- a/tests/baselines/reference/sourceMap-FileWithComments.sourcemap.txt
+++ b/tests/baselines/reference/sourceMap-FileWithComments.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:sourceMap-FileWithComments.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMapSample.js b/tests/baselines/reference/sourceMapSample.js
index 519f2137c1d38..35d6b4f1b5ceb 100644
--- a/tests/baselines/reference/sourceMapSample.js
+++ b/tests/baselines/reference/sourceMapSample.js
@@ -39,7 +39,7 @@ module Foo.Bar {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMapSample.sourcemap.txt b/tests/baselines/reference/sourceMapSample.sourcemap.txt
index 2ffafa87c7b7b..0104d0a4a9670 100644
--- a/tests/baselines/reference/sourceMapSample.sourcemap.txt
+++ b/tests/baselines/reference/sourceMapSample.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:sourceMapSample.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMapValidationClass.js b/tests/baselines/reference/sourceMapValidationClass.js
index f8a6b43eb7e27..7374554bf3adf 100644
--- a/tests/baselines/reference/sourceMapValidationClass.js
+++ b/tests/baselines/reference/sourceMapValidationClass.js
@@ -22,7 +22,7 @@ class Greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMapValidationClass.sourcemap.txt b/tests/baselines/reference/sourceMapValidationClass.sourcemap.txt
index 4be46d7444bdc..8927bd89fc9cd 100644
--- a/tests/baselines/reference/sourceMapValidationClass.sourcemap.txt
+++ b/tests/baselines/reference/sourceMapValidationClass.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:sourceMapValidationClass.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMapValidationClasses.js b/tests/baselines/reference/sourceMapValidationClasses.js
index 29b52fbd0a3ac..a5a0c649cfabb 100644
--- a/tests/baselines/reference/sourceMapValidationClasses.js
+++ b/tests/baselines/reference/sourceMapValidationClasses.js
@@ -40,7 +40,7 @@ module Foo.Bar {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMapValidationClasses.sourcemap.txt b/tests/baselines/reference/sourceMapValidationClasses.sourcemap.txt
index 543f90a828921..3b01211412a97 100644
--- a/tests/baselines/reference/sourceMapValidationClasses.sourcemap.txt
+++ b/tests/baselines/reference/sourceMapValidationClasses.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:sourceMapValidationClasses.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMapValidationDecorators.js b/tests/baselines/reference/sourceMapValidationDecorators.js
index b476d7a70fd14..f056b83dd0379 100644
--- a/tests/baselines/reference/sourceMapValidationDecorators.js
+++ b/tests/baselines/reference/sourceMapValidationDecorators.js
@@ -58,7 +58,7 @@ class Greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/sourceMapValidationDecorators.sourcemap.txt b/tests/baselines/reference/sourceMapValidationDecorators.sourcemap.txt
index f1d8268322813..41a28488a859a 100644
--- a/tests/baselines/reference/sourceMapValidationDecorators.sourcemap.txt
+++ b/tests/baselines/reference/sourceMapValidationDecorators.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:sourceMapValidationDecorators.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/specializedOverloadWithRestParameters.js b/tests/baselines/reference/specializedOverloadWithRestParameters.js
index fdb9d2982a059..1ea151d339547 100644
--- a/tests/baselines/reference/specializedOverloadWithRestParameters.js
+++ b/tests/baselines/reference/specializedOverloadWithRestParameters.js
@@ -16,7 +16,7 @@ function g(tagName: any): Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/specializedSignatureIsNotSubtypeOfNonSpecializedSignature.js b/tests/baselines/reference/specializedSignatureIsNotSubtypeOfNonSpecializedSignature.js
index 7393463ba5df5..5ae59175fd211 100644
--- a/tests/baselines/reference/specializedSignatureIsNotSubtypeOfNonSpecializedSignature.js
+++ b/tests/baselines/reference/specializedSignatureIsNotSubtypeOfNonSpecializedSignature.js
@@ -67,7 +67,7 @@ var a3: {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/specializedSignatureIsSubtypeOfNonSpecializedSignature.js b/tests/baselines/reference/specializedSignatureIsSubtypeOfNonSpecializedSignature.js
index 179253fc35538..45cfbe24e2d9c 100644
--- a/tests/baselines/reference/specializedSignatureIsSubtypeOfNonSpecializedSignature.js
+++ b/tests/baselines/reference/specializedSignatureIsSubtypeOfNonSpecializedSignature.js
@@ -87,7 +87,7 @@ var a3: {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/spreadMethods.js b/tests/baselines/reference/spreadMethods.js
index c877687779629..ad48f728b96f1 100644
--- a/tests/baselines/reference/spreadMethods.js
+++ b/tests/baselines/reference/spreadMethods.js
@@ -28,7 +28,7 @@ sso.m(); // ok
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticAndMemberFunctions.js b/tests/baselines/reference/staticAndMemberFunctions.js
index 1949ca1f64c41..6aed6bd9a298a 100644
--- a/tests/baselines/reference/staticAndMemberFunctions.js
+++ b/tests/baselines/reference/staticAndMemberFunctions.js
@@ -8,7 +8,7 @@ class T {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticAndNonStaticPropertiesSameName.js b/tests/baselines/reference/staticAndNonStaticPropertiesSameName.js
index a423898e379dc..2682965174345 100644
--- a/tests/baselines/reference/staticAndNonStaticPropertiesSameName.js
+++ b/tests/baselines/reference/staticAndNonStaticPropertiesSameName.js
@@ -11,7 +11,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticClassMemberError.js b/tests/baselines/reference/staticClassMemberError.js
index c4ce20719ac26..7f234d53775ee 100644
--- a/tests/baselines/reference/staticClassMemberError.js
+++ b/tests/baselines/reference/staticClassMemberError.js
@@ -16,7 +16,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticClassProps.js b/tests/baselines/reference/staticClassProps.js
index 39925d139e8ad..03d02b719754d 100644
--- a/tests/baselines/reference/staticClassProps.js
+++ b/tests/baselines/reference/staticClassProps.js
@@ -12,7 +12,7 @@ class C
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticFactory1.js b/tests/baselines/reference/staticFactory1.js
index a37c3ed112c16..bd44e06d8fc6d 100644
--- a/tests/baselines/reference/staticFactory1.js
+++ b/tests/baselines/reference/staticFactory1.js
@@ -17,7 +17,7 @@ d.foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticInstanceResolution.js b/tests/baselines/reference/staticInstanceResolution.js
index ccbba20fab463..92f7d77e3cb6b 100644
--- a/tests/baselines/reference/staticInstanceResolution.js
+++ b/tests/baselines/reference/staticInstanceResolution.js
@@ -18,7 +18,7 @@ class Comment {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticInstanceResolution4.js b/tests/baselines/reference/staticInstanceResolution4.js
index 409777bd8ab76..c0db8256963b6 100644
--- a/tests/baselines/reference/staticInstanceResolution4.js
+++ b/tests/baselines/reference/staticInstanceResolution4.js
@@ -9,7 +9,7 @@ A.foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticMemberExportAccess.js b/tests/baselines/reference/staticMemberExportAccess.js
index 874e694dbae50..174a8726b3bca 100644
--- a/tests/baselines/reference/staticMemberExportAccess.js
+++ b/tests/baselines/reference/staticMemberExportAccess.js
@@ -24,7 +24,7 @@ Sammy.bar();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticMemberOfClassAndPublicMemberOfAnotherClassAssignment.js b/tests/baselines/reference/staticMemberOfClassAndPublicMemberOfAnotherClassAssignment.js
index 7df37b0e38540..19cfbd2bab44f 100644
--- a/tests/baselines/reference/staticMemberOfClassAndPublicMemberOfAnotherClassAssignment.js
+++ b/tests/baselines/reference/staticMemberOfClassAndPublicMemberOfAnotherClassAssignment.js
@@ -29,7 +29,7 @@ c = a;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticMethodWithTypeParameterExtendsClauseDeclFile.js b/tests/baselines/reference/staticMethodWithTypeParameterExtendsClauseDeclFile.js
index 37ff9da5c6587..18d6d10868fa7 100644
--- a/tests/baselines/reference/staticMethodWithTypeParameterExtendsClauseDeclFile.js
+++ b/tests/baselines/reference/staticMethodWithTypeParameterExtendsClauseDeclFile.js
@@ -26,7 +26,7 @@ export class publicClassWithWithPrivateTypeParameters {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticOffOfInstance1.js b/tests/baselines/reference/staticOffOfInstance1.js
index 598a942258770..5983fac03cf18 100644
--- a/tests/baselines/reference/staticOffOfInstance1.js
+++ b/tests/baselines/reference/staticOffOfInstance1.js
@@ -10,7 +10,7 @@ class List {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticOffOfInstance2.js b/tests/baselines/reference/staticOffOfInstance2.js
index 63365a84ad6ab..00cf0d1261049 100644
--- a/tests/baselines/reference/staticOffOfInstance2.js
+++ b/tests/baselines/reference/staticOffOfInstance2.js
@@ -12,7 +12,7 @@ class List<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticPropertyAndFunctionWithSameName.js b/tests/baselines/reference/staticPropertyAndFunctionWithSameName.js
index 02b1e0cc80d12..a703931ce86bc 100644
--- a/tests/baselines/reference/staticPropertyAndFunctionWithSameName.js
+++ b/tests/baselines/reference/staticPropertyAndFunctionWithSameName.js
@@ -13,7 +13,7 @@ class D {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticPropertyNameConflicts.js b/tests/baselines/reference/staticPropertyNameConflicts.js
index db250be830f1b..cf88a2d76f143 100644
--- a/tests/baselines/reference/staticPropertyNameConflicts.js
+++ b/tests/baselines/reference/staticPropertyNameConflicts.js
@@ -195,7 +195,7 @@ module TestOnDefaultExportedClass_10 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/staticPropertyNotInClassType.js b/tests/baselines/reference/staticPropertyNotInClassType.js
index 561419ead1e5a..6bd6096c654cd 100644
--- a/tests/baselines/reference/staticPropertyNotInClassType.js
+++ b/tests/baselines/reference/staticPropertyNotInClassType.js
@@ -43,7 +43,7 @@ module Generic {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js b/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js
index 3b8b65c09123d..7f60b8d402f64 100644
--- a/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js
+++ b/tests/baselines/reference/strictModeReservedWordInClassDeclaration.js
@@ -32,7 +32,7 @@ class H extends package.A { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/strictModeUseContextualKeyword.js b/tests/baselines/reference/strictModeUseContextualKeyword.js
index 9a8816d8bcbc6..f14fbf84fc9c0 100644
--- a/tests/baselines/reference/strictModeUseContextualKeyword.js
+++ b/tests/baselines/reference/strictModeUseContextualKeyword.js
@@ -18,7 +18,7 @@ function H() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations.js b/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations.js
index 6a02a3bd77825..a41c586f04ec9 100644
--- a/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations.js
+++ b/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations.js
@@ -102,7 +102,7 @@ var b: { [x: string]: string; } = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js b/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js
index 0249347bec10e..fbf95441023f4 100644
--- a/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js
+++ b/tests/baselines/reference/stringIndexerConstrainsPropertyDeclarations2.js
@@ -44,7 +44,7 @@ var b: { [x: string]: A } = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js b/tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js
index 631125fc5bd32..2c343acf64751 100644
--- a/tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js
+++ b/tests/baselines/reference/stringLiteralTypeIsSubtypeOfString.js
@@ -105,7 +105,7 @@ function f16<T extends String, U extends T>(x: any) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/stringLiteralTypesInImplementationSignatures.js b/tests/baselines/reference/stringLiteralTypesInImplementationSignatures.js
index 6466462e31576..29839980dd370 100644
--- a/tests/baselines/reference/stringLiteralTypesInImplementationSignatures.js
+++ b/tests/baselines/reference/stringLiteralTypesInImplementationSignatures.js
@@ -31,7 +31,7 @@ var b = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/stringLiteralTypesInImplementationSignatures2.js b/tests/baselines/reference/stringLiteralTypesInImplementationSignatures2.js
index fafc023318a90..b5e6edb796368 100644
--- a/tests/baselines/reference/stringLiteralTypesInImplementationSignatures2.js
+++ b/tests/baselines/reference/stringLiteralTypesInImplementationSignatures2.js
@@ -34,7 +34,7 @@ var b = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/stripInternal1.js b/tests/baselines/reference/stripInternal1.js
index 0fc8639ce0c36..f15067de4b5c9 100644
--- a/tests/baselines/reference/stripInternal1.js
+++ b/tests/baselines/reference/stripInternal1.js
@@ -9,7 +9,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/super.js b/tests/baselines/reference/super.js
index c5629befb7265..6065aa3ffc15c 100644
--- a/tests/baselines/reference/super.js
+++ b/tests/baselines/reference/super.js
@@ -41,7 +41,7 @@ s.foo() + ss.foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/super1.js b/tests/baselines/reference/super1.js
index 7656e700e0c84..e5d9f65fa8cff 100644
--- a/tests/baselines/reference/super1.js
+++ b/tests/baselines/reference/super1.js
@@ -70,7 +70,7 @@ module Base4 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/super2.js b/tests/baselines/reference/super2.js
index 25b44e1168e30..8a2d4ec87d331 100644
--- a/tests/baselines/reference/super2.js
+++ b/tests/baselines/reference/super2.js
@@ -54,7 +54,7 @@ results1.x() + results1.y() + results2.y();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superAccess.js b/tests/baselines/reference/superAccess.js
index 66b80b1ca3a87..1228959ad1869 100644
--- a/tests/baselines/reference/superAccess.js
+++ b/tests/baselines/reference/superAccess.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superAccess2.js b/tests/baselines/reference/superAccess2.js
index 9441d85d1a99f..f3467bb3dc4cd 100644
--- a/tests/baselines/reference/superAccess2.js
+++ b/tests/baselines/reference/superAccess2.js
@@ -28,7 +28,7 @@ class Q extends P {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superAccessInFatArrow1.js b/tests/baselines/reference/superAccessInFatArrow1.js
index e5a8723f4e550..35d0eb7d0ecea 100644
--- a/tests/baselines/reference/superAccessInFatArrow1.js
+++ b/tests/baselines/reference/superAccessInFatArrow1.js
@@ -19,7 +19,7 @@ module test {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superCallInNonStaticMethod.js b/tests/baselines/reference/superCallInNonStaticMethod.js
index 80ce1ac9bb2b5..f7ecf46f8cd34 100644
--- a/tests/baselines/reference/superCallInNonStaticMethod.js
+++ b/tests/baselines/reference/superCallInNonStaticMethod.js
@@ -54,7 +54,7 @@ class Other extends Doing {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superCallInsideObjectLiteralExpression.js b/tests/baselines/reference/superCallInsideObjectLiteralExpression.js
index 445bb3ce8ef93..12aee41d8c92a 100644
--- a/tests/baselines/reference/superCallInsideObjectLiteralExpression.js
+++ b/tests/baselines/reference/superCallInsideObjectLiteralExpression.js
@@ -16,7 +16,7 @@ class B extends A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superCallOutsideConstructor.js b/tests/baselines/reference/superCallOutsideConstructor.js
index f763863cce525..5dbfa1925bf82 100644
--- a/tests/baselines/reference/superCallOutsideConstructor.js
+++ b/tests/baselines/reference/superCallOutsideConstructor.js
@@ -26,7 +26,7 @@ var d = new D();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superCallParameterContextualTyping3.js b/tests/baselines/reference/superCallParameterContextualTyping3.js
index c2dd9d3724e8b..caef232c891f2 100644
--- a/tests/baselines/reference/superCallParameterContextualTyping3.js
+++ b/tests/baselines/reference/superCallParameterContextualTyping3.js
@@ -35,7 +35,7 @@ class C extends CBase<string> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superCallWithMissingBaseClass.js b/tests/baselines/reference/superCallWithMissingBaseClass.js
index 14bcaaa039e45..6f93754e40200 100644
--- a/tests/baselines/reference/superCallWithMissingBaseClass.js
+++ b/tests/baselines/reference/superCallWithMissingBaseClass.js
@@ -23,7 +23,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superCallsInConstructor.js b/tests/baselines/reference/superCallsInConstructor.js
index df1ecf4774084..9140ad8bf689a 100644
--- a/tests/baselines/reference/superCallsInConstructor.js
+++ b/tests/baselines/reference/superCallsInConstructor.js
@@ -24,7 +24,7 @@ class Derived extends Base {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superErrors.js b/tests/baselines/reference/superErrors.js
index a7d89bfccd65f..03cbb6eb56a17 100644
--- a/tests/baselines/reference/superErrors.js
+++ b/tests/baselines/reference/superErrors.js
@@ -55,7 +55,7 @@ class RegisteredUser extends User {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superHasMethodsFromMergedInterface.js b/tests/baselines/reference/superHasMethodsFromMergedInterface.js
index 48000c9c3ea39..71fee2b67d4aa 100644
--- a/tests/baselines/reference/superHasMethodsFromMergedInterface.js
+++ b/tests/baselines/reference/superHasMethodsFromMergedInterface.js
@@ -12,7 +12,7 @@ class Sub extends C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superInCatchBlock1.js b/tests/baselines/reference/superInCatchBlock1.js
index 3a83b2a3a78bd..e49f111a719ef 100644
--- a/tests/baselines/reference/superInCatchBlock1.js
+++ b/tests/baselines/reference/superInCatchBlock1.js
@@ -17,7 +17,7 @@ class B extends A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superInConstructorParam1.js b/tests/baselines/reference/superInConstructorParam1.js
index c10f37ead7a0f..b67f0dd530423 100644
--- a/tests/baselines/reference/superInConstructorParam1.js
+++ b/tests/baselines/reference/superInConstructorParam1.js
@@ -14,7 +14,7 @@ class C extends B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superInLambdas.js b/tests/baselines/reference/superInLambdas.js
index f4a6b34dbb3a6..628bda31f2ff2 100644
--- a/tests/baselines/reference/superInLambdas.js
+++ b/tests/baselines/reference/superInLambdas.js
@@ -71,7 +71,7 @@ class RegisteredUser4 extends User {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superInObjectLiterals_ES5.js b/tests/baselines/reference/superInObjectLiterals_ES5.js
index b119eb3c24bf4..34230b70e98b2 100644
--- a/tests/baselines/reference/superInObjectLiterals_ES5.js
+++ b/tests/baselines/reference/superInObjectLiterals_ES5.js
@@ -63,7 +63,7 @@ class B extends A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superPropertyAccess.js b/tests/baselines/reference/superPropertyAccess.js
index 8052972f2dfef..a8371e0944a10 100644
--- a/tests/baselines/reference/superPropertyAccess.js
+++ b/tests/baselines/reference/superPropertyAccess.js
@@ -39,7 +39,7 @@ class MyDerived extends MyBase {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superPropertyAccess1.js b/tests/baselines/reference/superPropertyAccess1.js
index 95e17ab56f49f..25eac5c61bee5 100644
--- a/tests/baselines/reference/superPropertyAccess1.js
+++ b/tests/baselines/reference/superPropertyAccess1.js
@@ -31,7 +31,7 @@ class D extends C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js b/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js
index f363957bd7ccb..d32ad076dcd09 100644
--- a/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js
+++ b/tests/baselines/reference/superPropertyAccessInComputedPropertiesOfNestedType_ES5.js
@@ -18,7 +18,7 @@ class B extends A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superPropertyAccessInSuperCall01.js b/tests/baselines/reference/superPropertyAccessInSuperCall01.js
index de1e4944148b8..7694ac36aebfd 100644
--- a/tests/baselines/reference/superPropertyAccessInSuperCall01.js
+++ b/tests/baselines/reference/superPropertyAccessInSuperCall01.js
@@ -15,7 +15,7 @@ class B extends A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superPropertyAccessNoError.js b/tests/baselines/reference/superPropertyAccessNoError.js
index c9db138649378..85e672c26064b 100644
--- a/tests/baselines/reference/superPropertyAccessNoError.js
+++ b/tests/baselines/reference/superPropertyAccessNoError.js
@@ -80,7 +80,7 @@ instance.returnThis().fn();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superPropertyAccess_ES5.js b/tests/baselines/reference/superPropertyAccess_ES5.js
index f2ea444cc171e..5e94d749889a4 100644
--- a/tests/baselines/reference/superPropertyAccess_ES5.js
+++ b/tests/baselines/reference/superPropertyAccess_ES5.js
@@ -32,7 +32,7 @@ class B extends A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js b/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js
index 88bae4ed47921..7593a1228339c 100644
--- a/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js
+++ b/tests/baselines/reference/superPropertyInConstructorBeforeSuperCall.js
@@ -19,7 +19,7 @@ class C2 extends B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superSymbolIndexedAccess5.js b/tests/baselines/reference/superSymbolIndexedAccess5.js
index ee769255d357c..e5b28c2b98560 100644
--- a/tests/baselines/reference/superSymbolIndexedAccess5.js
+++ b/tests/baselines/reference/superSymbolIndexedAccess5.js
@@ -17,7 +17,7 @@ class Bar extends Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/superWithTypeArgument3.js b/tests/baselines/reference/superWithTypeArgument3.js
index 490f144a01e77..6c1f0c324346b 100644
--- a/tests/baselines/reference/superWithTypeArgument3.js
+++ b/tests/baselines/reference/superWithTypeArgument3.js
@@ -17,7 +17,7 @@ class D<T> extends C<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js b/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js
index 85cbdbedce3d3..e1753645c1921 100644
--- a/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js
+++ b/tests/baselines/reference/super_inside-object-literal-getters-and-setters.js
@@ -31,7 +31,7 @@ class SuperObjectTest extends F {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisBinding.js b/tests/baselines/reference/thisBinding.js
index 7bcbf25952451..b2121aa830c39 100644
--- a/tests/baselines/reference/thisBinding.js
+++ b/tests/baselines/reference/thisBinding.js
@@ -25,7 +25,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisCapture1.js b/tests/baselines/reference/thisCapture1.js
index 28ead6d784b9c..64b4c01103f8e 100644
--- a/tests/baselines/reference/thisCapture1.js
+++ b/tests/baselines/reference/thisCapture1.js
@@ -13,7 +13,7 @@ class X {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisExpressionInCallExpressionWithTypeArguments.js b/tests/baselines/reference/thisExpressionInCallExpressionWithTypeArguments.js
index dc73d9f86ab1d..acb1f18ff39f4 100644
--- a/tests/baselines/reference/thisExpressionInCallExpressionWithTypeArguments.js
+++ b/tests/baselines/reference/thisExpressionInCallExpressionWithTypeArguments.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisInConstructorParameter2.js b/tests/baselines/reference/thisInConstructorParameter2.js
index 2a3008427bb2f..3f4f88a760bd4 100644
--- a/tests/baselines/reference/thisInConstructorParameter2.js
+++ b/tests/baselines/reference/thisInConstructorParameter2.js
@@ -13,7 +13,7 @@ class P {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisInInnerFunctions.js b/tests/baselines/reference/thisInInnerFunctions.js
index 82938dda9ea94..f70fb30c21472 100644
--- a/tests/baselines/reference/thisInInnerFunctions.js
+++ b/tests/baselines/reference/thisInInnerFunctions.js
@@ -21,7 +21,7 @@ function test() {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisInLambda.js b/tests/baselines/reference/thisInLambda.js
index a583db3b75a03..089d4cadf9efb 100644
--- a/tests/baselines/reference/thisInLambda.js
+++ b/tests/baselines/reference/thisInLambda.js
@@ -22,7 +22,7 @@ class myCls {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisInObjectLiterals.js b/tests/baselines/reference/thisInObjectLiterals.js
index eb36655dfa3f6..5ac4daeffd5d3 100644
--- a/tests/baselines/reference/thisInObjectLiterals.js
+++ b/tests/baselines/reference/thisInObjectLiterals.js
@@ -23,7 +23,7 @@ var obj: { f: () => any; };
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisInOuterClassBody.js b/tests/baselines/reference/thisInOuterClassBody.js
index e1ee4a2ce37a0..8a1efb9b3e8c4 100644
--- a/tests/baselines/reference/thisInOuterClassBody.js
+++ b/tests/baselines/reference/thisInOuterClassBody.js
@@ -24,7 +24,7 @@ class Foo {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisInPropertyBoundDeclarations.js b/tests/baselines/reference/thisInPropertyBoundDeclarations.js
index 374135e76572d..b6bcd7e02cb7b 100644
--- a/tests/baselines/reference/thisInPropertyBoundDeclarations.js
+++ b/tests/baselines/reference/thisInPropertyBoundDeclarations.js
@@ -71,7 +71,7 @@ class B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisTypeAndConstraints.js b/tests/baselines/reference/thisTypeAndConstraints.js
index aacf3eb1bb3ee..d87c52812e90c 100644
--- a/tests/baselines/reference/thisTypeAndConstraints.js
+++ b/tests/baselines/reference/thisTypeAndConstraints.js
@@ -26,7 +26,7 @@ class B<T extends A> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisTypeAsConstraint.js b/tests/baselines/reference/thisTypeAsConstraint.js
index c6ce9b283b31c..dee2a89b3fae2 100644
--- a/tests/baselines/reference/thisTypeAsConstraint.js
+++ b/tests/baselines/reference/thisTypeAsConstraint.js
@@ -8,7 +8,7 @@ class C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisTypeErrors.js b/tests/baselines/reference/thisTypeErrors.js
index 70d286fa22a6b..db59c2e798014 100644
--- a/tests/baselines/reference/thisTypeErrors.js
+++ b/tests/baselines/reference/thisTypeErrors.js
@@ -60,7 +60,7 @@ class C3 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisTypeInClasses.js b/tests/baselines/reference/thisTypeInClasses.js
index 0530f3e042066..9b584ff2e2c9e 100644
--- a/tests/baselines/reference/thisTypeInClasses.js
+++ b/tests/baselines/reference/thisTypeInClasses.js
@@ -54,7 +54,7 @@ class C5 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisTypeInFunctions.js b/tests/baselines/reference/thisTypeInFunctions.js
index 7fff3a3924244..b057805dadfd9 100644
--- a/tests/baselines/reference/thisTypeInFunctions.js
+++ b/tests/baselines/reference/thisTypeInFunctions.js
@@ -198,7 +198,7 @@ function missingTypeIsImplicitAny(this, a: number) { return this.anything + a; }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisTypeInFunctionsNegative.js b/tests/baselines/reference/thisTypeInFunctionsNegative.js
index 209c461c6fab0..81e83d915ff85 100644
--- a/tests/baselines/reference/thisTypeInFunctionsNegative.js
+++ b/tests/baselines/reference/thisTypeInFunctionsNegative.js
@@ -180,7 +180,7 @@ c.explicitProperty = (this, m) => m + this.n;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/thisWhenTypeCheckFails.js b/tests/baselines/reference/thisWhenTypeCheckFails.js
index c066410702a53..cf842a29b8961 100644
--- a/tests/baselines/reference/thisWhenTypeCheckFails.js
+++ b/tests/baselines/reference/thisWhenTypeCheckFails.js
@@ -12,7 +12,7 @@ class c {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/throwInEnclosingStatements.js b/tests/baselines/reference/throwInEnclosingStatements.js
index 41c0e68e5bdbe..6c62bd519f6c8 100644
--- a/tests/baselines/reference/throwInEnclosingStatements.js
+++ b/tests/baselines/reference/throwInEnclosingStatements.js
@@ -50,7 +50,7 @@ var aa = {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/topLevel.js b/tests/baselines/reference/topLevel.js
index 8fbafb3ea1351..4402ec8d81c98 100644
--- a/tests/baselines/reference/topLevel.js
+++ b/tests/baselines/reference/topLevel.js
@@ -31,7 +31,7 @@ result+=(M.origin.move(1,1));
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/trailingCommaInHeterogenousArrayLiteral1.js b/tests/baselines/reference/trailingCommaInHeterogenousArrayLiteral1.js
index fc68add9c5591..5e6adff8ef91b 100644
--- a/tests/baselines/reference/trailingCommaInHeterogenousArrayLiteral1.js
+++ b/tests/baselines/reference/trailingCommaInHeterogenousArrayLiteral1.js
@@ -13,7 +13,7 @@ class arrTest {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxAttributeResolution10.js b/tests/baselines/reference/tsxAttributeResolution10.js
index 5034708e3c8fd..8764cc2e79f41 100644
--- a/tests/baselines/reference/tsxAttributeResolution10.js
+++ b/tests/baselines/reference/tsxAttributeResolution10.js
@@ -34,7 +34,7 @@ export class MyComponent {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxAttributeResolution11.js b/tests/baselines/reference/tsxAttributeResolution11.js
index fc245ec5d154b..4eb8861945db9 100644
--- a/tests/baselines/reference/tsxAttributeResolution11.js
+++ b/tests/baselines/reference/tsxAttributeResolution11.js
@@ -32,7 +32,7 @@ var x = <MyComponent bar='world' />;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxAttributeResolution15.js b/tests/baselines/reference/tsxAttributeResolution15.js
index 10fcb30d5e469..c5441edba9dfd 100644
--- a/tests/baselines/reference/tsxAttributeResolution15.js
+++ b/tests/baselines/reference/tsxAttributeResolution15.js
@@ -30,7 +30,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxAttributeResolution16.js b/tests/baselines/reference/tsxAttributeResolution16.js
index c1ff322234db7..a61cf8ac87763 100644
--- a/tests/baselines/reference/tsxAttributeResolution16.js
+++ b/tests/baselines/reference/tsxAttributeResolution16.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxAttributeResolution9.js b/tests/baselines/reference/tsxAttributeResolution9.js
index 106a897f7e22f..d2d20f2d136c5 100644
--- a/tests/baselines/reference/tsxAttributeResolution9.js
+++ b/tests/baselines/reference/tsxAttributeResolution9.js
@@ -30,7 +30,7 @@ export class MyComponent {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js b/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js
index 7853187a4b727..24d308ab98729 100644
--- a/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js
+++ b/tests/baselines/reference/tsxCorrectlyParseLessThanComparison1.js
@@ -34,7 +34,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxDefaultAttributesResolution1.js b/tests/baselines/reference/tsxDefaultAttributesResolution1.js
index 50a09b5e4541d..f94109bc68aba 100644
--- a/tests/baselines/reference/tsxDefaultAttributesResolution1.js
+++ b/tests/baselines/reference/tsxDefaultAttributesResolution1.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxDefaultAttributesResolution2.js b/tests/baselines/reference/tsxDefaultAttributesResolution2.js
index 23185f7d7ce21..26f50e17590ff 100644
--- a/tests/baselines/reference/tsxDefaultAttributesResolution2.js
+++ b/tests/baselines/reference/tsxDefaultAttributesResolution2.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxDefaultAttributesResolution3.js b/tests/baselines/reference/tsxDefaultAttributesResolution3.js
index 17c6eccf1d920..d5df64caecc2b 100644
--- a/tests/baselines/reference/tsxDefaultAttributesResolution3.js
+++ b/tests/baselines/reference/tsxDefaultAttributesResolution3.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxDynamicTagName5.js b/tests/baselines/reference/tsxDynamicTagName5.js
index 73277ae860fb1..673a02c42100f 100644
--- a/tests/baselines/reference/tsxDynamicTagName5.js
+++ b/tests/baselines/reference/tsxDynamicTagName5.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxDynamicTagName7.js b/tests/baselines/reference/tsxDynamicTagName7.js
index 7ee5d47e678c9..1735ac972d19d 100644
--- a/tests/baselines/reference/tsxDynamicTagName7.js
+++ b/tests/baselines/reference/tsxDynamicTagName7.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxDynamicTagName8.js b/tests/baselines/reference/tsxDynamicTagName8.js
index dcc50ce5e5cbe..c98d623bb50cf 100644
--- a/tests/baselines/reference/tsxDynamicTagName8.js
+++ b/tests/baselines/reference/tsxDynamicTagName8.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxDynamicTagName9.js b/tests/baselines/reference/tsxDynamicTagName9.js
index be8b8aad683a9..872a081407f5a 100644
--- a/tests/baselines/reference/tsxDynamicTagName9.js
+++ b/tests/baselines/reference/tsxDynamicTagName9.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxEmit1.js b/tests/baselines/reference/tsxEmit1.js
index 80f380d8231aa..02a9d4cc97941 100644
--- a/tests/baselines/reference/tsxEmit1.js
+++ b/tests/baselines/reference/tsxEmit1.js
@@ -44,7 +44,7 @@ var whitespace3 = <div>
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxExternalModuleEmit1.js b/tests/baselines/reference/tsxExternalModuleEmit1.js
index ff56aa90b46d0..c3e3bffaa51f8 100644
--- a/tests/baselines/reference/tsxExternalModuleEmit1.js
+++ b/tests/baselines/reference/tsxExternalModuleEmit1.js
@@ -45,7 +45,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
@@ -85,7 +85,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxGenericAttributesType3.js b/tests/baselines/reference/tsxGenericAttributesType3.js
index 0f3c6827e620a..f9ffad09ff1a7 100644
--- a/tests/baselines/reference/tsxGenericAttributesType3.js
+++ b/tests/baselines/reference/tsxGenericAttributesType3.js
@@ -27,7 +27,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxGenericAttributesType4.js b/tests/baselines/reference/tsxGenericAttributesType4.js
index 7ad79bd550a29..35bf88388fb05 100644
--- a/tests/baselines/reference/tsxGenericAttributesType4.js
+++ b/tests/baselines/reference/tsxGenericAttributesType4.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxGenericAttributesType5.js b/tests/baselines/reference/tsxGenericAttributesType5.js
index d158a5e78df43..5fb618fccfcac 100644
--- a/tests/baselines/reference/tsxGenericAttributesType5.js
+++ b/tests/baselines/reference/tsxGenericAttributesType5.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxGenericAttributesType6.js b/tests/baselines/reference/tsxGenericAttributesType6.js
index 0ce7f98eef65c..b9c7cdc629484 100644
--- a/tests/baselines/reference/tsxGenericAttributesType6.js
+++ b/tests/baselines/reference/tsxGenericAttributesType6.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxGenericAttributesType9.js b/tests/baselines/reference/tsxGenericAttributesType9.js
index 6a48a6921dd70..08b6e1c150e17 100644
--- a/tests/baselines/reference/tsxGenericAttributesType9.js
+++ b/tests/baselines/reference/tsxGenericAttributesType9.js
@@ -28,7 +28,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxReactEmit1.js b/tests/baselines/reference/tsxReactEmit1.js
index bce8983aa0db1..9df2f5fca009a 100644
--- a/tests/baselines/reference/tsxReactEmit1.js
+++ b/tests/baselines/reference/tsxReactEmit1.js
@@ -45,7 +45,7 @@ var whitespace3 = <div>
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution1.js b/tests/baselines/reference/tsxSpreadAttributesResolution1.js
index 1dea3ceacfb9a..57757fbd1cdd0 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution1.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution1.js
@@ -29,7 +29,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution10.js b/tests/baselines/reference/tsxSpreadAttributesResolution10.js
index c6c6efc56d7a1..68c40c0fe78ae 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution10.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution10.js
@@ -38,7 +38,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution11.js b/tests/baselines/reference/tsxSpreadAttributesResolution11.js
index 3097f21e76113..bbc8a4ef45645 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution11.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution11.js
@@ -46,7 +46,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution12.js b/tests/baselines/reference/tsxSpreadAttributesResolution12.js
index 425f9040c6a1a..cf31e3639d1b6 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution12.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution12.js
@@ -47,7 +47,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution2.js b/tests/baselines/reference/tsxSpreadAttributesResolution2.js
index 3cea6a2dc8b09..1fdc8442eef96 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution2.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution2.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution3.js b/tests/baselines/reference/tsxSpreadAttributesResolution3.js
index 7ae886eb2eff5..694ab22185516 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution3.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution3.js
@@ -36,7 +36,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution4.js b/tests/baselines/reference/tsxSpreadAttributesResolution4.js
index 8ad239a344022..24fa9901105a1 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution4.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution4.js
@@ -49,7 +49,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution5.js b/tests/baselines/reference/tsxSpreadAttributesResolution5.js
index 9228b70a2fa5f..7c05799246a94 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution5.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution5.js
@@ -48,7 +48,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution6.js b/tests/baselines/reference/tsxSpreadAttributesResolution6.js
index edcd3e64a28fa..af6638ea463b1 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution6.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution6.js
@@ -32,7 +32,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution7.js b/tests/baselines/reference/tsxSpreadAttributesResolution7.js
index edcd6645c35b8..d23d309376d8c 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution7.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution7.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution8.js b/tests/baselines/reference/tsxSpreadAttributesResolution8.js
index 827c07f7eacff..9ee3084087471 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution8.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution8.js
@@ -41,7 +41,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxSpreadAttributesResolution9.js b/tests/baselines/reference/tsxSpreadAttributesResolution9.js
index 70351631ad688..121a9063b65bf 100644
--- a/tests/baselines/reference/tsxSpreadAttributesResolution9.js
+++ b/tests/baselines/reference/tsxSpreadAttributesResolution9.js
@@ -39,7 +39,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxStatelessFunctionComponents2.js b/tests/baselines/reference/tsxStatelessFunctionComponents2.js
index 85ce1dd739ceb..857b09d18c083 100644
--- a/tests/baselines/reference/tsxStatelessFunctionComponents2.js
+++ b/tests/baselines/reference/tsxStatelessFunctionComponents2.js
@@ -52,7 +52,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxUnionElementType3.js b/tests/baselines/reference/tsxUnionElementType3.js
index db52ef1e7e709..c2d1c92a80490 100644
--- a/tests/baselines/reference/tsxUnionElementType3.js
+++ b/tests/baselines/reference/tsxUnionElementType3.js
@@ -51,7 +51,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxUnionElementType4.js b/tests/baselines/reference/tsxUnionElementType4.js
index dd98da2fd7662..b05dd769d7ce1 100644
--- a/tests/baselines/reference/tsxUnionElementType4.js
+++ b/tests/baselines/reference/tsxUnionElementType4.js
@@ -50,7 +50,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/tsxUnionTypeComponent1.js b/tests/baselines/reference/tsxUnionTypeComponent1.js
index 3801c5a599b6b..978609f4827cf 100644
--- a/tests/baselines/reference/tsxUnionTypeComponent1.js
+++ b/tests/baselines/reference/tsxUnionTypeComponent1.js
@@ -38,7 +38,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeCheckTypeArgument.js b/tests/baselines/reference/typeCheckTypeArgument.js
index 8765d17ee8484..50dce6ac67a91 100644
--- a/tests/baselines/reference/typeCheckTypeArgument.js
+++ b/tests/baselines/reference/typeCheckTypeArgument.js
@@ -17,7 +17,7 @@ class Foo2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeConstraintsWithConstructSignatures.js b/tests/baselines/reference/typeConstraintsWithConstructSignatures.js
index dedbf6c4156f1..7a4f61fcd415c 100644
--- a/tests/baselines/reference/typeConstraintsWithConstructSignatures.js
+++ b/tests/baselines/reference/typeConstraintsWithConstructSignatures.js
@@ -16,7 +16,7 @@ class C<T extends Constructable> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeGuardFunction.js b/tests/baselines/reference/typeGuardFunction.js
index 50952ec1027a0..452d72a3e5e57 100644
--- a/tests/baselines/reference/typeGuardFunction.js
+++ b/tests/baselines/reference/typeGuardFunction.js
@@ -96,7 +96,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeGuardFunctionOfFormThis.js b/tests/baselines/reference/typeGuardFunctionOfFormThis.js
index 3623b6b18569b..4939143aa5ba6 100644
--- a/tests/baselines/reference/typeGuardFunctionOfFormThis.js
+++ b/tests/baselines/reference/typeGuardFunctionOfFormThis.js
@@ -145,7 +145,7 @@ interface MimicGuardInterface {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js b/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js
index a092542802a8f..e4f3d1cb3de25 100644
--- a/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js
+++ b/tests/baselines/reference/typeGuardFunctionOfFormThisErrors.js
@@ -63,7 +63,7 @@ else {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeGuardsInClassMethods.js b/tests/baselines/reference/typeGuardsInClassMethods.js
index a7e1137184071..a79522a8def6b 100644
--- a/tests/baselines/reference/typeGuardsInClassMethods.js
+++ b/tests/baselines/reference/typeGuardsInClassMethods.js
@@ -74,7 +74,7 @@ class C1 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeGuardsInProperties.js b/tests/baselines/reference/typeGuardsInProperties.js
index 3a4cfee5d012b..7b8ec297ad51d 100644
--- a/tests/baselines/reference/typeGuardsInProperties.js
+++ b/tests/baselines/reference/typeGuardsInProperties.js
@@ -31,7 +31,7 @@ strOrNum = typeof obj1.x === "string" && obj1.x;  // string | number
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeGuardsOnClassProperty.js b/tests/baselines/reference/typeGuardsOnClassProperty.js
index d1ba221411f02..4058fd57f8c8d 100644
--- a/tests/baselines/reference/typeGuardsOnClassProperty.js
+++ b/tests/baselines/reference/typeGuardsOnClassProperty.js
@@ -34,7 +34,7 @@ if (typeof prop1 === "string" && prop1.toLocaleLowerCase()) { }
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeInferenceLiteralUnion.js b/tests/baselines/reference/typeInferenceLiteralUnion.js
index ef6e69b6f945f..693074b69b0c8 100644
--- a/tests/baselines/reference/typeInferenceLiteralUnion.js
+++ b/tests/baselines/reference/typeInferenceLiteralUnion.js
@@ -41,7 +41,7 @@ extentMixed = extent([new NumCoercible(10), 13, '12', true]);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeInferenceReturnTypeCallback.js b/tests/baselines/reference/typeInferenceReturnTypeCallback.js
index 94ff05fc8b52f..3e91a29b51ac4 100644
--- a/tests/baselines/reference/typeInferenceReturnTypeCallback.js
+++ b/tests/baselines/reference/typeInferenceReturnTypeCallback.js
@@ -25,7 +25,7 @@ class Cons<T> implements IList<T>{
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeOfThis.js b/tests/baselines/reference/typeOfThis.js
index 3782e8f5ffac1..c0ac3e2355c12 100644
--- a/tests/baselines/reference/typeOfThis.js
+++ b/tests/baselines/reference/typeOfThis.js
@@ -181,7 +181,7 @@ this.spaaaaace = 4;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeOfThisInInstanceMember.js b/tests/baselines/reference/typeOfThisInInstanceMember.js
index 00a824a8214e3..30c15f28e765b 100644
--- a/tests/baselines/reference/typeOfThisInInstanceMember.js
+++ b/tests/baselines/reference/typeOfThisInInstanceMember.js
@@ -35,7 +35,7 @@ rs.forEach(x => {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeOfThisInInstanceMember2.js b/tests/baselines/reference/typeOfThisInInstanceMember2.js
index ccd3efa0fbc84..d657f343ea6f5 100644
--- a/tests/baselines/reference/typeOfThisInInstanceMember2.js
+++ b/tests/baselines/reference/typeOfThisInInstanceMember2.js
@@ -39,7 +39,7 @@ rs.forEach(x => {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeOfThisInMemberFunctions.js b/tests/baselines/reference/typeOfThisInMemberFunctions.js
index 48ad3bc3aa1ca..85177e9a717c8 100644
--- a/tests/baselines/reference/typeOfThisInMemberFunctions.js
+++ b/tests/baselines/reference/typeOfThisInMemberFunctions.js
@@ -35,7 +35,7 @@ class E<T extends Date> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeParameterAssignmentCompat1.js b/tests/baselines/reference/typeParameterAssignmentCompat1.js
index c1a739f220ae0..0122b28ae6beb 100644
--- a/tests/baselines/reference/typeParameterAssignmentCompat1.js
+++ b/tests/baselines/reference/typeParameterAssignmentCompat1.js
@@ -23,7 +23,7 @@ class C<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeParameterExtendingUnion1.js b/tests/baselines/reference/typeParameterExtendingUnion1.js
index bece6309f23d8..189d5f4f2225d 100644
--- a/tests/baselines/reference/typeParameterExtendingUnion1.js
+++ b/tests/baselines/reference/typeParameterExtendingUnion1.js
@@ -16,7 +16,7 @@ function f<T extends Cat | Dog>(a: T) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeParameterExtendingUnion2.js b/tests/baselines/reference/typeParameterExtendingUnion2.js
index 0a927ed2d8a18..74e26b6e35e2f 100644
--- a/tests/baselines/reference/typeParameterExtendingUnion2.js
+++ b/tests/baselines/reference/typeParameterExtendingUnion2.js
@@ -16,7 +16,7 @@ function f<T extends Cat | Dog>(a: T) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeParameterUsedAsTypeParameterConstraint4.js b/tests/baselines/reference/typeParameterUsedAsTypeParameterConstraint4.js
index 5885098c2c4b1..b3ccbc006ea99 100644
--- a/tests/baselines/reference/typeParameterUsedAsTypeParameterConstraint4.js
+++ b/tests/baselines/reference/typeParameterUsedAsTypeParameterConstraint4.js
@@ -59,7 +59,7 @@ var f4 = <U extends T, T>(x: V, y: X) => { // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeParameterWithInvalidConstraintType.js b/tests/baselines/reference/typeParameterWithInvalidConstraintType.js
index 82823c9c0091e..cc2033697b858 100644
--- a/tests/baselines/reference/typeParameterWithInvalidConstraintType.js
+++ b/tests/baselines/reference/typeParameterWithInvalidConstraintType.js
@@ -13,7 +13,7 @@ class A<T extends T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeParametersAndParametersInComputedNames.js b/tests/baselines/reference/typeParametersAndParametersInComputedNames.js
index b2634904c9761..2ea075177f385 100644
--- a/tests/baselines/reference/typeParametersAndParametersInComputedNames.js
+++ b/tests/baselines/reference/typeParametersAndParametersInComputedNames.js
@@ -12,7 +12,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeParametersAreIdenticalToThemselves.js b/tests/baselines/reference/typeParametersAreIdenticalToThemselves.js
index 705fb6ac038c6..4b33d6f12e05b 100644
--- a/tests/baselines/reference/typeParametersAreIdenticalToThemselves.js
+++ b/tests/baselines/reference/typeParametersAreIdenticalToThemselves.js
@@ -81,7 +81,7 @@ interface I2<T extends Date> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeParametersAvailableInNestedScope.js b/tests/baselines/reference/typeParametersAvailableInNestedScope.js
index 88d54f8f3fce5..c057c742d5438 100644
--- a/tests/baselines/reference/typeParametersAvailableInNestedScope.js
+++ b/tests/baselines/reference/typeParametersAvailableInNestedScope.js
@@ -25,7 +25,7 @@ c.data = c.foo();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeQueryOnClass.js b/tests/baselines/reference/typeQueryOnClass.js
index 11bed558f48bd..908eb6809e7c6 100644
--- a/tests/baselines/reference/typeQueryOnClass.js
+++ b/tests/baselines/reference/typeQueryOnClass.js
@@ -60,7 +60,7 @@ var r4: typeof d;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeQueryWithReservedWords.js b/tests/baselines/reference/typeQueryWithReservedWords.js
index 2e6f9c505f1d4..8e8609bea9961 100644
--- a/tests/baselines/reference/typeQueryWithReservedWords.js
+++ b/tests/baselines/reference/typeQueryWithReservedWords.js
@@ -19,7 +19,7 @@ interface IScope {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeRelationships.js b/tests/baselines/reference/typeRelationships.js
index b26da5266198d..236d78edd0219 100644
--- a/tests/baselines/reference/typeRelationships.js
+++ b/tests/baselines/reference/typeRelationships.js
@@ -44,7 +44,7 @@ class D extends C {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeResolution.js b/tests/baselines/reference/typeResolution.js
index c92156714a575..253b95a12d640 100644
--- a/tests/baselines/reference/typeResolution.js
+++ b/tests/baselines/reference/typeResolution.js
@@ -114,7 +114,7 @@ module TopLevelModule2 {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeResolution.sourcemap.txt b/tests/baselines/reference/typeResolution.sourcemap.txt
index 618675fedf011..d1169d41c8ab7 100644
--- a/tests/baselines/reference/typeResolution.sourcemap.txt
+++ b/tests/baselines/reference/typeResolution.sourcemap.txt
@@ -11,7 +11,7 @@ sourceFile:typeResolution.ts
 >>>var __names = (this && this.__names) || (function() {
 >>>    var name = Object.defineProperty ? (function(proto, name) {
 >>>        Object.defineProperty(proto[name], 'name', { 
->>>            value: name, configurable: true, writable: false, enumerable: false
+>>>            value: name, configurable: true
 >>>        });
 >>>    }) : (function(proto, name) {
 >>>        proto[name].name = name;
diff --git a/tests/baselines/reference/typeVariableTypeGuards.js b/tests/baselines/reference/typeVariableTypeGuards.js
index 7f54c0a0695c7..3fbd7533c669b 100644
--- a/tests/baselines/reference/typeVariableTypeGuards.js
+++ b/tests/baselines/reference/typeVariableTypeGuards.js
@@ -88,7 +88,7 @@ function f5<T, K extends keyof T>(obj: T | undefined, key: K) {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typedGenericPrototypeMember.js b/tests/baselines/reference/typedGenericPrototypeMember.js
index 2288b62519f87..f5af0c7028399 100644
--- a/tests/baselines/reference/typedGenericPrototypeMember.js
+++ b/tests/baselines/reference/typedGenericPrototypeMember.js
@@ -10,7 +10,7 @@ List.prototype.add("abc"); // Valid because T is instantiated to any
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typeofClass2.js b/tests/baselines/reference/typeofClass2.js
index 9f88c7e0de4bb..a4437e0a202fa 100644
--- a/tests/baselines/reference/typeofClass2.js
+++ b/tests/baselines/reference/typeofClass2.js
@@ -35,7 +35,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/typesWithSpecializedCallSignatures.js b/tests/baselines/reference/typesWithSpecializedCallSignatures.js
index cd9c19c947dae..a9112a6eb45f8 100644
--- a/tests/baselines/reference/typesWithSpecializedCallSignatures.js
+++ b/tests/baselines/reference/typesWithSpecializedCallSignatures.js
@@ -56,7 +56,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/undeclaredMethod.js b/tests/baselines/reference/undeclaredMethod.js
index 56799db14160a..13f2849eb3c7c 100644
--- a/tests/baselines/reference/undeclaredMethod.js
+++ b/tests/baselines/reference/undeclaredMethod.js
@@ -16,7 +16,7 @@ c.saltbar();	// crash
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/underscoreMapFirst.js b/tests/baselines/reference/underscoreMapFirst.js
index ccacda241629d..ae550134e0e9d 100644
--- a/tests/baselines/reference/underscoreMapFirst.js
+++ b/tests/baselines/reference/underscoreMapFirst.js
@@ -62,7 +62,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unionTypeEquivalence.js b/tests/baselines/reference/unionTypeEquivalence.js
index dffd6cf986ddc..9c4721df94f68 100644
--- a/tests/baselines/reference/unionTypeEquivalence.js
+++ b/tests/baselines/reference/unionTypeEquivalence.js
@@ -33,7 +33,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unionTypeFromArrayLiteral.js b/tests/baselines/reference/unionTypeFromArrayLiteral.js
index 7631c7e4357a8..6f8406b7237f0 100644
--- a/tests/baselines/reference/unionTypeFromArrayLiteral.js
+++ b/tests/baselines/reference/unionTypeFromArrayLiteral.js
@@ -31,7 +31,7 @@ var arr9 = [e, f]; // (E|F)[]
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unionTypesAssignability.js b/tests/baselines/reference/unionTypesAssignability.js
index b9db9a0917370..b3e78d3743efb 100644
--- a/tests/baselines/reference/unionTypesAssignability.js
+++ b/tests/baselines/reference/unionTypesAssignability.js
@@ -87,7 +87,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unknownTypeArgOnCall.js b/tests/baselines/reference/unknownTypeArgOnCall.js
index bd4bdbc9682d5..3408d33eb0d86 100644
--- a/tests/baselines/reference/unknownTypeArgOnCall.js
+++ b/tests/baselines/reference/unknownTypeArgOnCall.js
@@ -12,7 +12,7 @@ var r = f.clone<Uhhhh>()
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unspecializedConstraints.js b/tests/baselines/reference/unspecializedConstraints.js
index d21e1adc34b0e..a67e8e1c8154c 100644
--- a/tests/baselines/reference/unspecializedConstraints.js
+++ b/tests/baselines/reference/unspecializedConstraints.js
@@ -167,7 +167,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedClassesinModule1.js b/tests/baselines/reference/unusedClassesinModule1.js
index 888619d512649..00c1e87669968 100644
--- a/tests/baselines/reference/unusedClassesinModule1.js
+++ b/tests/baselines/reference/unusedClassesinModule1.js
@@ -10,7 +10,7 @@ module A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedIdentifiersConsolidated1.js b/tests/baselines/reference/unusedIdentifiersConsolidated1.js
index 45e2d5331982f..b669f9d5ac401 100644
--- a/tests/baselines/reference/unusedIdentifiersConsolidated1.js
+++ b/tests/baselines/reference/unusedIdentifiersConsolidated1.js
@@ -105,7 +105,7 @@ namespace Greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedImports10.js b/tests/baselines/reference/unusedImports10.js
index 25dc307b927a3..fb6cdf545a30a 100644
--- a/tests/baselines/reference/unusedImports10.js
+++ b/tests/baselines/reference/unusedImports10.js
@@ -14,7 +14,7 @@ module B {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedImports2.js b/tests/baselines/reference/unusedImports2.js
index 424c980a93d8b..f9e33b87534e3 100644
--- a/tests/baselines/reference/unusedImports2.js
+++ b/tests/baselines/reference/unusedImports2.js
@@ -21,7 +21,7 @@ x.handleChar();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedImports3.js b/tests/baselines/reference/unusedImports3.js
index 18750f668c214..f7b788e87355f 100644
--- a/tests/baselines/reference/unusedImports3.js
+++ b/tests/baselines/reference/unusedImports3.js
@@ -24,7 +24,7 @@ test2();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedImports4.js b/tests/baselines/reference/unusedImports4.js
index 4d7e0bb332813..eea809a358a94 100644
--- a/tests/baselines/reference/unusedImports4.js
+++ b/tests/baselines/reference/unusedImports4.js
@@ -25,7 +25,7 @@ test2();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedImports5.js b/tests/baselines/reference/unusedImports5.js
index 1437b8b91df29..17a83fad289e7 100644
--- a/tests/baselines/reference/unusedImports5.js
+++ b/tests/baselines/reference/unusedImports5.js
@@ -25,7 +25,7 @@ test();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedImports6.js b/tests/baselines/reference/unusedImports6.js
index f754e235b9045..3c60a5672b36a 100644
--- a/tests/baselines/reference/unusedImports6.js
+++ b/tests/baselines/reference/unusedImports6.js
@@ -25,7 +25,7 @@ import d from "./file1"
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedImports7.js b/tests/baselines/reference/unusedImports7.js
index 0c3ba963d131e..376d8c9fdeefc 100644
--- a/tests/baselines/reference/unusedImports7.js
+++ b/tests/baselines/reference/unusedImports7.js
@@ -23,7 +23,7 @@ import * as n from "./file1"
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedImports8.js b/tests/baselines/reference/unusedImports8.js
index 2b6294f65c911..6c40507558985 100644
--- a/tests/baselines/reference/unusedImports8.js
+++ b/tests/baselines/reference/unusedImports8.js
@@ -25,7 +25,7 @@ t1();
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedImports9.js b/tests/baselines/reference/unusedImports9.js
index 5f1a45f37a66e..5b401a5073aae 100644
--- a/tests/baselines/reference/unusedImports9.js
+++ b/tests/baselines/reference/unusedImports9.js
@@ -21,7 +21,7 @@ import c = require('./file1')
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedInvalidTypeArguments.js b/tests/baselines/reference/unusedInvalidTypeArguments.js
index 5926ff9013590..c7667093b8214 100644
--- a/tests/baselines/reference/unusedInvalidTypeArguments.js
+++ b/tests/baselines/reference/unusedInvalidTypeArguments.js
@@ -109,7 +109,7 @@ var __extends = (this && this.__extends) || (function () {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedLocalProperty.js b/tests/baselines/reference/unusedLocalProperty.js
index ef9c41c51c459..415c4d6e7b183 100644
--- a/tests/baselines/reference/unusedLocalProperty.js
+++ b/tests/baselines/reference/unusedLocalProperty.js
@@ -16,7 +16,7 @@ class Animal {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedLocalsAndParameters.js b/tests/baselines/reference/unusedLocalsAndParameters.js
index e4b3490a945d9..655c1d078a01f 100644
--- a/tests/baselines/reference/unusedLocalsAndParameters.js
+++ b/tests/baselines/reference/unusedLocalsAndParameters.js
@@ -88,7 +88,7 @@ namespace N {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedLocalsAndParametersDeferred.js b/tests/baselines/reference/unusedLocalsAndParametersDeferred.js
index 4b6cbce4f187b..be1c3604e8a27 100644
--- a/tests/baselines/reference/unusedLocalsAndParametersDeferred.js
+++ b/tests/baselines/reference/unusedLocalsAndParametersDeferred.js
@@ -164,7 +164,7 @@ N;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedLocalsAndParametersOverloadSignatures.js b/tests/baselines/reference/unusedLocalsAndParametersOverloadSignatures.js
index ae887bb7eeb66..6bc7e38426117 100644
--- a/tests/baselines/reference/unusedLocalsAndParametersOverloadSignatures.js
+++ b/tests/baselines/reference/unusedLocalsAndParametersOverloadSignatures.js
@@ -27,7 +27,7 @@ export function genericFunc(details: number, message: any): any {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedLocalsInMethod1.js b/tests/baselines/reference/unusedLocalsInMethod1.js
index 9c4a5213ebd07..2c487a37ad134 100644
--- a/tests/baselines/reference/unusedLocalsInMethod1.js
+++ b/tests/baselines/reference/unusedLocalsInMethod1.js
@@ -9,7 +9,7 @@ class greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedLocalsInMethod2.js b/tests/baselines/reference/unusedLocalsInMethod2.js
index cf25b93466ce6..c57894f00f784 100644
--- a/tests/baselines/reference/unusedLocalsInMethod2.js
+++ b/tests/baselines/reference/unusedLocalsInMethod2.js
@@ -10,7 +10,7 @@ class greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedLocalsInMethod3.js b/tests/baselines/reference/unusedLocalsInMethod3.js
index 1b6480078ee05..bf3e372e2245f 100644
--- a/tests/baselines/reference/unusedLocalsInMethod3.js
+++ b/tests/baselines/reference/unusedLocalsInMethod3.js
@@ -10,7 +10,7 @@ class greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedMultipleParameters1InMethodDeclaration.js b/tests/baselines/reference/unusedMultipleParameters1InMethodDeclaration.js
index 59a5829bf7806..b7c9f88c51d59 100644
--- a/tests/baselines/reference/unusedMultipleParameters1InMethodDeclaration.js
+++ b/tests/baselines/reference/unusedMultipleParameters1InMethodDeclaration.js
@@ -10,7 +10,7 @@ class Dummy {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedMultipleParameters2InMethodDeclaration.js b/tests/baselines/reference/unusedMultipleParameters2InMethodDeclaration.js
index 06d97116da2c3..a17a73d31fecf 100644
--- a/tests/baselines/reference/unusedMultipleParameters2InMethodDeclaration.js
+++ b/tests/baselines/reference/unusedMultipleParameters2InMethodDeclaration.js
@@ -10,7 +10,7 @@ class Dummy {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedParametersInLambda1.js b/tests/baselines/reference/unusedParametersInLambda1.js
index b75be92593590..78d66f1d1bae4 100644
--- a/tests/baselines/reference/unusedParametersInLambda1.js
+++ b/tests/baselines/reference/unusedParametersInLambda1.js
@@ -10,7 +10,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedParametersInLambda2.js b/tests/baselines/reference/unusedParametersInLambda2.js
index 10f5d131ea066..14ea047169358 100644
--- a/tests/baselines/reference/unusedParametersInLambda2.js
+++ b/tests/baselines/reference/unusedParametersInLambda2.js
@@ -11,7 +11,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedParametersThis.js b/tests/baselines/reference/unusedParametersThis.js
index 45e379de380ba..ff33f6b229c60 100644
--- a/tests/baselines/reference/unusedParametersThis.js
+++ b/tests/baselines/reference/unusedParametersThis.js
@@ -37,7 +37,7 @@ var f2 = function f2(this: A): number {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedPrivateMembers.js b/tests/baselines/reference/unusedPrivateMembers.js
index 370caa430df4d..3510467635e19 100644
--- a/tests/baselines/reference/unusedPrivateMembers.js
+++ b/tests/baselines/reference/unusedPrivateMembers.js
@@ -52,7 +52,7 @@ class Test5<T> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedPrivateMethodInClass1.js b/tests/baselines/reference/unusedPrivateMethodInClass1.js
index ec7decda4b3bd..27a523f27e46c 100644
--- a/tests/baselines/reference/unusedPrivateMethodInClass1.js
+++ b/tests/baselines/reference/unusedPrivateMethodInClass1.js
@@ -10,7 +10,7 @@ class greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedPrivateMethodInClass2.js b/tests/baselines/reference/unusedPrivateMethodInClass2.js
index f7a0bdad58558..dff3eaeb4e748 100644
--- a/tests/baselines/reference/unusedPrivateMethodInClass2.js
+++ b/tests/baselines/reference/unusedPrivateMethodInClass2.js
@@ -15,7 +15,7 @@ class greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedPrivateMethodInClass3.js b/tests/baselines/reference/unusedPrivateMethodInClass3.js
index bc3e269325bb2..3d25919cb02d6 100644
--- a/tests/baselines/reference/unusedPrivateMethodInClass3.js
+++ b/tests/baselines/reference/unusedPrivateMethodInClass3.js
@@ -20,7 +20,7 @@ class greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedPrivateMethodInClass4.js b/tests/baselines/reference/unusedPrivateMethodInClass4.js
index 0552eb1c6ed22..c3fca0c259085 100644
--- a/tests/baselines/reference/unusedPrivateMethodInClass4.js
+++ b/tests/baselines/reference/unusedPrivateMethodInClass4.js
@@ -21,7 +21,7 @@ class greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedPrivateVariableInClass4.js b/tests/baselines/reference/unusedPrivateVariableInClass4.js
index de6bbe0d0054e..f4a88b6f57da2 100644
--- a/tests/baselines/reference/unusedPrivateVariableInClass4.js
+++ b/tests/baselines/reference/unusedPrivateVariableInClass4.js
@@ -13,7 +13,7 @@ class greeter {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedSingleParameterInMethodDeclaration.js b/tests/baselines/reference/unusedSingleParameterInMethodDeclaration.js
index 5aa6a8b7438d8..f17e6509ac1cb 100644
--- a/tests/baselines/reference/unusedSingleParameterInMethodDeclaration.js
+++ b/tests/baselines/reference/unusedSingleParameterInMethodDeclaration.js
@@ -9,7 +9,7 @@ class Dummy {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedTypeParameterInLambda1.js b/tests/baselines/reference/unusedTypeParameterInLambda1.js
index bfcc70d2d87ca..4fb75db51fa87 100644
--- a/tests/baselines/reference/unusedTypeParameterInLambda1.js
+++ b/tests/baselines/reference/unusedTypeParameterInLambda1.js
@@ -11,7 +11,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedTypeParameterInLambda2.js b/tests/baselines/reference/unusedTypeParameterInLambda2.js
index e9c2c88a6a570..135811ad0333f 100644
--- a/tests/baselines/reference/unusedTypeParameterInLambda2.js
+++ b/tests/baselines/reference/unusedTypeParameterInLambda2.js
@@ -12,7 +12,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedTypeParameterInMethod1.js b/tests/baselines/reference/unusedTypeParameterInMethod1.js
index b28fffce5069a..dc9ea721315e0 100644
--- a/tests/baselines/reference/unusedTypeParameterInMethod1.js
+++ b/tests/baselines/reference/unusedTypeParameterInMethod1.js
@@ -12,7 +12,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedTypeParameterInMethod2.js b/tests/baselines/reference/unusedTypeParameterInMethod2.js
index 9d737cce6f30d..19ff86ff3b074 100644
--- a/tests/baselines/reference/unusedTypeParameterInMethod2.js
+++ b/tests/baselines/reference/unusedTypeParameterInMethod2.js
@@ -12,7 +12,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedTypeParameterInMethod3.js b/tests/baselines/reference/unusedTypeParameterInMethod3.js
index 15783e3ec2c5b..80e13e5d8805c 100644
--- a/tests/baselines/reference/unusedTypeParameterInMethod3.js
+++ b/tests/baselines/reference/unusedTypeParameterInMethod3.js
@@ -12,7 +12,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedTypeParameterInMethod4.js b/tests/baselines/reference/unusedTypeParameterInMethod4.js
index 5fe8e59a6500f..5804e52201eb6 100644
--- a/tests/baselines/reference/unusedTypeParameterInMethod4.js
+++ b/tests/baselines/reference/unusedTypeParameterInMethod4.js
@@ -9,7 +9,7 @@ class A {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedTypeParameters2.js b/tests/baselines/reference/unusedTypeParameters2.js
index 1fb1418637d6c..eab94d5483738 100644
--- a/tests/baselines/reference/unusedTypeParameters2.js
+++ b/tests/baselines/reference/unusedTypeParameters2.js
@@ -11,7 +11,7 @@ class greeter<typeparameter1, typeparameter2> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedTypeParameters3.js b/tests/baselines/reference/unusedTypeParameters3.js
index 19634509b1666..5b14389ed6b9c 100644
--- a/tests/baselines/reference/unusedTypeParameters3.js
+++ b/tests/baselines/reference/unusedTypeParameters3.js
@@ -11,7 +11,7 @@ class greeter<typeparameter1, typeparameter2, typeparameter3> {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedVariablesinNamespaces2.js b/tests/baselines/reference/unusedVariablesinNamespaces2.js
index c479aa8bfdd38..dde789563470f 100644
--- a/tests/baselines/reference/unusedVariablesinNamespaces2.js
+++ b/tests/baselines/reference/unusedVariablesinNamespaces2.js
@@ -14,7 +14,7 @@ namespace Validation {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/unusedVariablesinNamespaces3.js b/tests/baselines/reference/unusedVariablesinNamespaces3.js
index 8462206adf388..9b102c1f65f08 100644
--- a/tests/baselines/reference/unusedVariablesinNamespaces3.js
+++ b/tests/baselines/reference/unusedVariablesinNamespaces3.js
@@ -15,7 +15,7 @@ namespace Validation {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/vararg.js b/tests/baselines/reference/vararg.js
index f99b030af4a77..476ac9085ae32 100644
--- a/tests/baselines/reference/vararg.js
+++ b/tests/baselines/reference/vararg.js
@@ -42,7 +42,7 @@ result+=x.fonly("a","b","c","d"); //ok
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/variableDeclaratorResolvedDuringContextualTyping.js b/tests/baselines/reference/variableDeclaratorResolvedDuringContextualTyping.js
index 6f66f73fd779d..325a0b5184a38 100644
--- a/tests/baselines/reference/variableDeclaratorResolvedDuringContextualTyping.js
+++ b/tests/baselines/reference/variableDeclaratorResolvedDuringContextualTyping.js
@@ -129,7 +129,7 @@ class FileService {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/visibilityOfTypeParameters.js b/tests/baselines/reference/visibilityOfTypeParameters.js
index 278ebb5280bac..ac730683e6a8c 100644
--- a/tests/baselines/reference/visibilityOfTypeParameters.js
+++ b/tests/baselines/reference/visibilityOfTypeParameters.js
@@ -10,7 +10,7 @@ export class MyClass {
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/witness.js b/tests/baselines/reference/witness.js
index 5223630a173a6..436e3b9dca30c 100644
--- a/tests/baselines/reference/witness.js
+++ b/tests/baselines/reference/witness.js
@@ -140,7 +140,7 @@ var qq: any;
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/wrappedAndRecursiveConstraints.js b/tests/baselines/reference/wrappedAndRecursiveConstraints.js
index 689185d1cd9f0..bc1f41472f1cd 100644
--- a/tests/baselines/reference/wrappedAndRecursiveConstraints.js
+++ b/tests/baselines/reference/wrappedAndRecursiveConstraints.js
@@ -21,7 +21,7 @@ var r = c.foo(y);
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/wrappedAndRecursiveConstraints3.js b/tests/baselines/reference/wrappedAndRecursiveConstraints3.js
index 0039016b2d584..06a13ff28396b 100644
--- a/tests/baselines/reference/wrappedAndRecursiveConstraints3.js
+++ b/tests/baselines/reference/wrappedAndRecursiveConstraints3.js
@@ -20,7 +20,7 @@ var r2 = r('');
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;
diff --git a/tests/baselines/reference/wrappedAndRecursiveConstraints4.js b/tests/baselines/reference/wrappedAndRecursiveConstraints4.js
index 53bf5b1d3423f..90e834626c458 100644
--- a/tests/baselines/reference/wrappedAndRecursiveConstraints4.js
+++ b/tests/baselines/reference/wrappedAndRecursiveConstraints4.js
@@ -17,7 +17,7 @@ var r2 = r({ length: 3, charAt: (x: number) => { '' } }); // error
 var __names = (this && this.__names) || (function() {
     var name = Object.defineProperty ? (function(proto, name) {
         Object.defineProperty(proto[name], 'name', { 
-            value: name, configurable: true, writable: false, enumerable: false
+            value: name, configurable: true
         });
     }) : (function(proto, name) {
         proto[name].name = name;