diff --git a/src/com/google/javascript/jscomp/debugger/CompilationParam.java b/src/com/google/javascript/jscomp/debugger/common/CompilationParam.java
similarity index 67%
rename from src/com/google/javascript/jscomp/debugger/CompilationParam.java
rename to src/com/google/javascript/jscomp/debugger/common/CompilationParam.java
index a4f208ae249..1a6c0213f21 100644
--- a/src/com/google/javascript/jscomp/debugger/CompilationParam.java
+++ b/src/com/google/javascript/jscomp/debugger/common/CompilationParam.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.google.javascript.jscomp.debugger;
+package com.google.javascript.jscomp.debugger.common;
 
 import com.google.javascript.jscomp.AnonymousFunctionNamingPolicy;
 import com.google.javascript.jscomp.CheckLevel;
@@ -34,47 +34,47 @@
 
 /**
  * An enum of boolean CGI parameters to the compilation.
+ *
  * @author nicksantos@google.com (Nick Santos)
  */
-enum CompilationParam {
-
+public enum CompilationParam {
   ENABLE_ALL_DIAGNOSTIC_GROUPS {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       if (value) {
         for (DiagnosticGroup group : new DiagnosticGroups().getRegisteredGroups().values()) {
           options.setWarningLevel(group, CheckLevel.WARNING);
         }
       }
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "Sets all registered DiagnosticGroups to CheckLevel.WARNING";
     }
   },
 
-  /**
-   * Configures the compiler for use as an IDE backend.
-   */
+  /** Configures the compiler for use as an IDE backend. */
   IDE_MODE {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setIdeMode(value);
     }
   },
 
   /** If true, the output language is ES5. If false, we skip transpilation. */
-  TRANSPILE(true, ParamGroup.TRANSPILATION) {
+  TRANSPILE(false, ParamGroup.TRANSPILATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setLanguageIn(CompilerOptions.LanguageMode.ECMASCRIPT_NEXT);
       options.setLanguageOut(
           value
               ? CompilerOptions.LanguageMode.ECMASCRIPT5
               : CompilerOptions.LanguageMode.NO_TRANSPILE);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setLanguageOut(LanguageMode.ECMASCRIPT5)";
     }
   },
@@ -82,25 +82,25 @@ String getJavaInfo() {
   /** If true, skip all passes aside from transpilation-related ones. */
   SKIP_NON_TRANSPILATION_PASSES(ParamGroup.TRANSPILATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setSkipNonTranspilationPasses(value);
     }
   },
 
-
-  //--------------------------------
+  // --------------------------------
   // Checks
-  //--------------------------------
+  // --------------------------------
 
   CHECK_LINT(ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       if (value) {
         options.setWarningLevel(DiagnosticGroups.LINT_CHECKS, CheckLevel.WARNING);
       }
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return diagGroupWarningInfo("LINT_CHECKS");
     }
   },
@@ -108,7 +108,7 @@ String getJavaInfo() {
   /** Checks that all symbols are defined */
   CHECK_SYMBOLS(true, ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setCheckSymbols(value);
     }
   },
@@ -116,12 +116,13 @@ void apply(CompilerOptions options, boolean value) {
   /** Checks missing return */
   CHECK_MISSING_RETURN(ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setWarningLevel(
           DiagnosticGroups.MISSING_RETURN, value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return diagGroupWarningInfo("MISSING_RETURN");
     }
   },
@@ -129,7 +130,7 @@ String getJavaInfo() {
   /** Checks for suspicious statements that have no effect */
   CHECK_SUSPICIOUS_CODE(ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setCheckSuspiciousCode(value);
     }
   },
@@ -137,7 +138,7 @@ void apply(CompilerOptions options, boolean value) {
   /** Checks types on expressions */
   CHECK_TYPES(true, ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setCheckTypes(value);
     }
   },
@@ -145,11 +146,12 @@ void apply(CompilerOptions options, boolean value) {
   /** Checks types on expressions */
   CHECK_TYPES_NEW_INFERENCE(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setNewTypeInference(value);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setNewTypeInference(true)";
     }
   },
@@ -157,13 +159,13 @@ String getJavaInfo() {
   /** Checks for missing properties */
   MISSING_PROPERTIES(true, ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setWarningLevel(
-          DiagnosticGroups.MISSING_PROPERTIES,
-          value ? CheckLevel.WARNING : CheckLevel.OFF);
+          DiagnosticGroups.MISSING_PROPERTIES, value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return diagGroupWarningInfo("MISSING_PROPERTIES");
     }
   },
@@ -174,12 +176,13 @@ String getJavaInfo() {
    */
   CHECK_REPORT_MISSING_OVERRIDE(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setWarningLevel(
           DiagnosticGroups.MISSING_OVERRIDE, value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setReportMissingOverride(CheckLevel.WARNING)";
     }
   },
@@ -187,12 +190,13 @@ String getJavaInfo() {
   /** Checks for missing goog.require() calls */
   CHECK_REQUIRES(ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
-    options.setWarningLevel(DiagnosticGroups.MISSING_REQUIRE,
-        value ? CheckLevel.WARNING : CheckLevel.OFF);
+    public void apply(CompilerOptions options, boolean value) {
+      options.setWarningLevel(
+          DiagnosticGroups.MISSING_REQUIRE, value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return diagGroupWarningInfo("MISSING_REQUIRE");
     }
   },
@@ -200,12 +204,13 @@ String getJavaInfo() {
   /** Checks for missing goog.provides() calls * */
   CHECK_PROVIDES(ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setWarningLevel(
           DiagnosticGroups.MISSING_PROVIDE, value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return diagGroupWarningInfo("MISSING_PROVIDE");
     }
   },
@@ -213,12 +218,12 @@ String getJavaInfo() {
   /** Checks the integrity of references to qualified global names. (e.g. "a.b") */
   CHECK_GLOBAL_NAMES(ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
-      options.setCheckGlobalNamesLevel(value ?
-          CheckLevel.WARNING : CheckLevel.OFF);
+    public void apply(CompilerOptions options, boolean value) {
+      options.setCheckGlobalNamesLevel(value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setCheckGlobalNamesLevel(CheckLevel.WARNING)";
     }
   },
@@ -226,12 +231,13 @@ String getJavaInfo() {
   /** Checks deprecation. */
   CHECK_DEPRECATED(ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
-      options.setWarningLevel(DiagnosticGroups.DEPRECATED,
-          value ? CheckLevel.WARNING : CheckLevel.OFF);
+    public void apply(CompilerOptions options, boolean value) {
+      options.setWarningLevel(
+          DiagnosticGroups.DEPRECATED, value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return diagGroupWarningInfo("DEPRECATED");
     }
   },
@@ -239,12 +245,13 @@ String getJavaInfo() {
   /** Checks visibility. */
   CHECK_VISIBILITY(ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
-      options.setWarningLevel(DiagnosticGroups.VISIBILITY,
-          value ? CheckLevel.WARNING : CheckLevel.OFF);
+    public void apply(CompilerOptions options, boolean value) {
+      options.setWarningLevel(
+          DiagnosticGroups.VISIBILITY, value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return diagGroupWarningInfo("VISIBILITY");
     }
   },
@@ -252,12 +259,12 @@ String getJavaInfo() {
   /** Checks visibility. */
   CHECK_CONSTANTS(ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
-      options.setWarningLevel(DiagnosticGroups.CONST,
-          value ? CheckLevel.WARNING : CheckLevel.OFF);
+    public void apply(CompilerOptions options, boolean value) {
+      options.setWarningLevel(DiagnosticGroups.CONST, value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return diagGroupWarningInfo("CONST");
     }
   },
@@ -265,12 +272,13 @@ String getJavaInfo() {
   /** Checks es5strict. */
   CHECK_ES5_STRICT(ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
-      options.setWarningLevel(DiagnosticGroups.ES5_STRICT,
-          value ? CheckLevel.WARNING : CheckLevel.OFF);
+    public void apply(CompilerOptions options, boolean value) {
+      options.setWarningLevel(
+          DiagnosticGroups.ES5_STRICT, value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return diagGroupWarningInfo("ES5_STRICT");
     }
   },
@@ -281,23 +289,23 @@ String getJavaInfo() {
    */
   CHECK_GLOBAL_THIS(ParamGroup.ERROR_CHECKING) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
-      options.setCheckGlobalThisLevel(value ?
-          CheckLevel.WARNING : CheckLevel.OFF);
+    public void apply(CompilerOptions options, boolean value) {
+      options.setCheckGlobalThisLevel(value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setCheckGlobalThisLevel(CheckLevel.WARNING)";
     }
   },
 
-  //--------------------------------
+  // --------------------------------
   // Optimizations
-  //--------------------------------
+  // --------------------------------
 
   COMPUTE_FUNCTION_SIDE_EFFECTS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setComputeFunctionSideEffects(value);
     }
   },
@@ -305,14 +313,14 @@ void apply(CompilerOptions options, boolean value) {
   /** Folds constants (e.g. (2 + 3) to 5) */
   FOLD_CONSTANTS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setFoldConstants(value);
     }
   },
 
   DEAD_ASSIGNMENT_ELIMINATION(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setDeadAssignmentElimination(value);
     }
   },
@@ -320,11 +328,12 @@ void apply(CompilerOptions options, boolean value) {
   /** Inlines constants (symbols that are all CAPS) */
   INLINE_CONSTANTS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setInlineConstantVars(value);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setInlineConstantVars(true)";
     }
   },
@@ -332,12 +341,13 @@ String getJavaInfo() {
   /** Inlines functions */
   INLINE_FUNCTIONS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setInlineFunctions(value);
       options.setInlineLocalFunctions(value);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setInlineFunctions(true) + options.setInlineLocalFunctions(true)";
     }
   },
@@ -345,7 +355,7 @@ String getJavaInfo() {
   /** Merge two variables together as one. */
   COALESCE_VARIABLE_NAMES(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setCoalesceVariableNames(value);
     }
   },
@@ -353,7 +363,7 @@ void apply(CompilerOptions options, boolean value) {
   /** Inlines variables */
   INLINE_VARIABLES(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setInlineVariables(value);
     }
   },
@@ -361,14 +371,14 @@ void apply(CompilerOptions options, boolean value) {
   /** Flowsenstive Inlines variables */
   FLOW_SENSITIVE_INLINE_VARIABLES(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setFlowSensitiveInlineVariables(value);
     }
   },
 
   INLINE_PROPERTIES(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setInlineProperties(value);
     }
   },
@@ -376,7 +386,7 @@ void apply(CompilerOptions options, boolean value) {
   /** Removes code associated with unused global names */
   SMART_NAME_REMOVAL(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setSmartNameRemoval(value);
     }
   },
@@ -384,7 +394,7 @@ void apply(CompilerOptions options, boolean value) {
   /** Removes code that will never execute */
   REMOVE_DEAD_CODE(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setRemoveDeadCode(value);
     }
   },
@@ -392,12 +402,13 @@ void apply(CompilerOptions options, boolean value) {
   /** Checks for unreachable code */
   CHECK_UNREACHABLE_CODE(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
-      options.setWarningLevel(DiagnosticGroups.CHECK_USELESS_CODE, value ?
-          CheckLevel.WARNING : CheckLevel.OFF);
+    public void apply(CompilerOptions options, boolean value) {
+      options.setWarningLevel(
+          DiagnosticGroups.CHECK_USELESS_CODE, value ? CheckLevel.WARNING : CheckLevel.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return diagGroupWarningInfo("CHECK_USELESS_CODE");
     }
   },
@@ -405,7 +416,7 @@ String getJavaInfo() {
   /** Extracts common prototype member declarations */
   EXTRACT_PROTOTYPE_MEMBER_DECLARATIONS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setExtractPrototypeMemberDeclarations(value);
     }
   },
@@ -413,12 +424,12 @@ void apply(CompilerOptions options, boolean value) {
   /** Removes abstract methods */
   REMOVE_ABSTRACT_METHODS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setRemoveAbstractMethods(value);
     }
 
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setRemoveAbstractMethods(true)";
     }
   },
@@ -426,7 +437,7 @@ String getJavaInfo() {
   /** Removes unused member prototypes */
   REMOVE_UNUSED_PROTOTYPE_PROPERTIES(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setRemoveUnusedPrototypeProperties(value);
     }
   },
@@ -434,7 +445,7 @@ void apply(CompilerOptions options, boolean value) {
   /** Removes unused static class prototypes */
   REMOVE_UNUSED_CLASS_PROPERTIES(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setRemoveUnusedClassProperties(value);
     }
   },
@@ -442,7 +453,7 @@ void apply(CompilerOptions options, boolean value) {
   /** Tells AnalyzePrototypeProperties it can remove externed props. */
   REMOVE_UNUSED_PROTOTYPE_PROPERTIES_IN_EXTERNS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setRemoveUnusedPrototypePropertiesInExterns(value);
     }
   },
@@ -450,7 +461,7 @@ void apply(CompilerOptions options, boolean value) {
   /** Removes unused variables */
   REMOVE_UNUSED_VARIABLES(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       if (value) {
         options.setRemoveUnusedVariables(Reach.ALL);
       } else {
@@ -462,7 +473,7 @@ void apply(CompilerOptions options, boolean value) {
   /** Collapses multiple variable declarations into one */
   COLLAPSE_VARIABLE_DECLARATIONS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setCollapseVariableDeclarations(value);
     }
   },
@@ -470,7 +481,7 @@ void apply(CompilerOptions options, boolean value) {
   /** Collapses anonymous function expressions into named function declarations */
   COLLAPSE_ANONYMOUS_FUNCTIONS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setCollapseAnonymousFunctions(value);
     }
   },
@@ -481,7 +492,7 @@ void apply(CompilerOptions options, boolean value) {
    */
   ALIAS_ALL_STRINGS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setAliasAllStrings(value);
     }
   },
@@ -489,11 +500,12 @@ void apply(CompilerOptions options, boolean value) {
   /** Converts quoted property accesses to dot syntax (a['b'] -> a.b) */
   CONVERT_TO_DOTTED_PROPERTIES(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setConvertToDottedProperties(value);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setConvertToDottedProperties(true)";
     }
   },
@@ -501,24 +513,24 @@ String getJavaInfo() {
   /** Enables a number of peephole optimizations */
   USE_TYPES_FOR_LOCAL_OPTIMIZATION(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setUseTypesForLocalOptimization(value);
     }
 
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setUseTypesForLocalOptimization(true)";
     }
   },
 
-  //--------------------------------
+  // --------------------------------
   // Renaming
-  //--------------------------------
+  // --------------------------------
 
   /** Controls label renaming. */
   LABEL_RENAMING(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setLabelRenaming(value);
     }
   },
@@ -526,7 +538,7 @@ void apply(CompilerOptions options, boolean value) {
   /** Generate pseudo names for properties (for debugging purposes) */
   GENERATE_PSEUDO_NAMES {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setGeneratePseudoNames(value);
     }
   },
@@ -534,34 +546,35 @@ void apply(CompilerOptions options, boolean value) {
   /** Flattens multi-level property names (e.g. a$b = x) */
   COLLAPSE_PROPERTIES(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setCollapseProperties(value);
     }
   },
 
   DEVIRTUALIZE_PROTOTYPE_METHODS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setDevirtualizePrototypeMethods(value);
     }
   },
 
   REWRITE_FUNCTION_EXPRESSIONS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
-      options.setRewriteFunctionExpressions(value);    }
+    public void apply(CompilerOptions options, boolean value) {
+      options.setRewriteFunctionExpressions(value);
+    }
   },
 
   DISAMBIGUATE_PROPERTIES(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setDisambiguateProperties(value);
     }
   },
 
   AMBIGUATE_PROPERTIES(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setAmbiguateProperties(value);
     }
   },
@@ -569,14 +582,14 @@ void apply(CompilerOptions options, boolean value) {
   /** Give anonymous functions names for easier debugging */
   NAME_ANONYMOUS_FUNCTIONS {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       if (value) {
-        options.setAnonymousFunctionNaming(
-            AnonymousFunctionNamingPolicy.UNMAPPED);
+        options.setAnonymousFunctionNaming(AnonymousFunctionNamingPolicy.UNMAPPED);
       }
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setAnonymousFunctionNaming(AnonymousFunctionNamingPolicy.UNMAPPED)";
     }
   },
@@ -584,14 +597,14 @@ String getJavaInfo() {
   /** Give anonymous functions mapped names for easier debugging */
   NAME_ANONYMOUS_FUNCTIONS_MAPPED {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       if (value) {
-        options.setAnonymousFunctionNaming(
-            AnonymousFunctionNamingPolicy.MAPPED);
+        options.setAnonymousFunctionNaming(AnonymousFunctionNamingPolicy.MAPPED);
       }
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setAnonymousFunctionNaming(AnonymousFunctionNamingPolicy.MAPPED)";
     }
   },
@@ -599,59 +612,58 @@ String getJavaInfo() {
   /** If true, rename all variables */
   VARIABLE_RENAMING(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
-      options.setVariableRenaming(value ?
-          VariableRenamingPolicy.ALL :
-          VariableRenamingPolicy.OFF);
+    public void apply(CompilerOptions options, boolean value) {
+      options.setVariableRenaming(value ? VariableRenamingPolicy.ALL : VariableRenamingPolicy.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setVariableRenaming(VariableRenamingPolicy.ALL)";
     }
   },
 
   PROPERTY_RENAMING(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
-      options.setPropertyRenaming(value ?
-          PropertyRenamingPolicy.ALL_UNQUOTED :
-          PropertyRenamingPolicy.OFF);
+    public void apply(CompilerOptions options, boolean value) {
+      options.setPropertyRenaming(
+          value ? PropertyRenamingPolicy.ALL_UNQUOTED : PropertyRenamingPolicy.OFF);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setPropertyRenaming(PropertyRenamingPolicy.ALL_UNQUOTED)";
     }
   },
 
   OPTIMIZE_CALLS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setOptimizeCalls(value);
     }
   },
 
   OPTIMIZE_PARAMETERS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setOptimizeParameters(value);
     }
   },
 
   OPTIMIZE_RETURNS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setOptimizeReturns(value);
     }
   },
 
-  //--------------------------------
+  // --------------------------------
   // Special-purpose alterations
-  //--------------------------------
+  // --------------------------------
 
   /** Processes goog.provide() and goog.require() calls */
   CLOSURE_PASS(true) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setClosurePass(value);
     }
   },
@@ -659,53 +671,54 @@ void apply(CompilerOptions options, boolean value) {
   /** Move top level function declarations to the top */
   MOVE_FUNCTION_DECLARATIONS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setMoveFunctionDeclarations(value);
     }
   },
 
   GENERATE_EXPORTS {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setGenerateExports(value);
     }
   },
 
   ALLOW_LOCAL_EXPORTS {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setExportLocalPropertyDefinitions(value);
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setExportLocalPropertyDefinitions(true)";
     }
   },
 
   MARK_NO_SIDE_EFFECT_CALLS(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setMarkNoSideEffectCalls(value);
     }
   },
 
   CROSS_MODULE_CODE_MOTION(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setCrossModuleCodeMotion(value);
     }
   },
 
   CROSS_MODULE_METHOD_MOTION(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setCrossModuleMethodMotion(value);
     }
   },
 
   SYNTHETIC_BLOCK_MARKER(ParamGroup.TYPE_CHECKING_OPTIMIZATION) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       if (value) {
         options.setSyntheticBlockStartMarker("start");
         options.setSyntheticBlockEndMarker("end");
@@ -714,8 +727,9 @@ void apply(CompilerOptions options, boolean value) {
         options.setSyntheticBlockEndMarker(null);
       }
     }
+
     @Override
-    String getJavaInfo() {
+    public String getJavaInfo() {
       return "options.setSyntheticBlockStartMarker(\"start\") + "
           + "options.setSyntheticBlockEndMarker(\"end\")";
     }
@@ -724,39 +738,39 @@ String getJavaInfo() {
   /** Process @ngInject directive */
   ANGULAR_PASS(ParamGroup.SPECIAL_PASSES) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setAngularPass(value);
     }
   },
 
   POLYMER_PASS(ParamGroup.SPECIAL_PASSES) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setPolymerVersion(value ? 1 : null);
     }
   },
 
   CHROME_PASS(ParamGroup.SPECIAL_PASSES) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setChromePass(value);
     }
   },
 
   J2CL_PASS(ParamGroup.SPECIAL_PASSES) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setJ2clPass(value ? J2clPassMode.ON : J2clPassMode.OFF);
     }
   },
 
-  //--------------------------------
+  // --------------------------------
   // Output options
-  //--------------------------------
+  // --------------------------------
 
   PRESERVE_TYPE_ANNOTATIONS(true) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setPreserveTypeAnnotations(value);
     }
   },
@@ -764,12 +778,13 @@ void apply(CompilerOptions options, boolean value) {
   /** Ouput in pretty indented format */
   PRETTY_PRINT(true) {
     @Override
-    void apply(CompilerOptions options, boolean value) {
+    public void apply(CompilerOptions options, boolean value) {
       options.setPrettyPrint(value);
     }
   };
 
-  enum ParamGroup {
+  /** Groups parameters into associated types */
+  public enum ParamGroup {
     ERROR_CHECKING("Lint and Error Checking"),
     TRANSPILATION("Transpilation"),
     TYPE_CHECKING_OPTIMIZATION("Type Checking/Optimization"),
@@ -804,19 +819,19 @@ enum ParamGroup {
   }
 
   /** Returns the default value. */
-  boolean getDefaultValue() {
+  public boolean getDefaultValue() {
     return defaultValue;
   }
 
   /**
-   * Optionally returns a hint about the Java API methods/options this param affects,
-   * currently implemented for all params where the enum name doesn't directly match to a
-   * camel case method CompilerOptions.setSomethingOrOther(true), such as for diagnostic groups
-   * or where the option method name has changed.
-   * To assist external developers who are trying to correlate their own Java API driven
-   * compilation options to the debugger's options when creating reproducible issue reports.
+   * Optionally returns a hint about the Java API methods/options this param affects, currently
+   * implemented for all params where the enum name doesn't directly match to a camel case method
+   * CompilerOptions.setSomethingOrOther(true), such as for diagnostic groups or where the option
+   * method name has changed. To assist external developers who are trying to correlate their own
+   * Java API driven compilation options to the debugger's options when creating reproducible issue
+   * reports.
    */
-  String getJavaInfo() {
+  public String getJavaInfo() {
     return null;
   }
 
@@ -825,20 +840,21 @@ private static String diagGroupWarningInfo(String diagGroupsMember) {
   }
 
   static CompilationParam[] getSortedValues() {
-    ArrayList<CompilationParam> values = new ArrayList<>(
-        Arrays.asList(CompilationParam.values()));
+    ArrayList<CompilationParam> values = new ArrayList<>(Arrays.asList(CompilationParam.values()));
 
-    Collections.sort(values, new java.util.Comparator<CompilationParam>() {
-      @Override
-      public int compare(CompilationParam o1, CompilationParam o2) {
-        return o1.toString().compareTo(o2.toString());
-      }
-    });
+    Collections.sort(
+        values,
+        new java.util.Comparator<CompilationParam>() {
+          @Override
+          public int compare(CompilationParam o1, CompilationParam o2) {
+            return o1.toString().compareTo(o2.toString());
+          }
+        });
 
     return values.toArray(new CompilationParam[0]);
   }
 
-  static Map<ParamGroup, CompilationParam[]> getGroupedSortedValues() {
+  public static Map<ParamGroup, CompilationParam[]> getGroupedSortedValues() {
     Map<ParamGroup, CompilationParam[]> compilationParamsByGroup = new EnumMap<>(ParamGroup.class);
 
     for (ParamGroup group : ParamGroup.values()) {
@@ -855,5 +871,5 @@ static Map<ParamGroup, CompilationParam[]> getGroupedSortedValues() {
   }
 
   /** Applies a CGI parameter to the options. */
-  abstract void apply(CompilerOptions options, boolean value);
+  public abstract void apply(CompilerOptions options, boolean value);
 }
diff --git a/src/com/google/javascript/jscomp/debugger/DebuggerGwtMain.java b/src/com/google/javascript/jscomp/debugger/gwt/DebuggerGwtMain.java
similarity index 91%
rename from src/com/google/javascript/jscomp/debugger/DebuggerGwtMain.java
rename to src/com/google/javascript/jscomp/debugger/gwt/DebuggerGwtMain.java
index 8d295867024..d11c4150773 100644
--- a/src/com/google/javascript/jscomp/debugger/DebuggerGwtMain.java
+++ b/src/com/google/javascript/jscomp/debugger/gwt/DebuggerGwtMain.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.google.javascript.jscomp.debugger;
+package com.google.javascript.jscomp.debugger.gwt;
 
 import com.google.common.base.Joiner;
 import com.google.common.collect.Iterables;
@@ -37,6 +37,7 @@
 import com.google.javascript.jscomp.JSError;
 import com.google.javascript.jscomp.Result;
 import com.google.javascript.jscomp.SourceFile;
+import com.google.javascript.jscomp.debugger.common.CompilationParam;
 import java.util.Arrays;
 import java.util.List;
 
@@ -89,21 +90,23 @@ public void onModuleLoad() {
     externs.setCharacterWidth(80);
     externs.setVisibleLines(5);
     externs.setText("function Symbol() {}\n");
-    externs.addKeyUpHandler(new KeyUpHandler() {
-      @Override
-      public void onKeyUp(KeyUpEvent event) {
-        doCompile();
-      }
-    });
+    externs.addKeyUpHandler(
+        new KeyUpHandler() {
+          @Override
+          public void onKeyUp(KeyUpEvent event) {
+            doCompile();
+          }
+        });
 
     input0.setCharacterWidth(80);
     input0.setVisibleLines(25);
-    input0.addKeyUpHandler(new KeyUpHandler() {
-      @Override
-      public void onKeyUp(KeyUpEvent event) {
-        doCompile();
-      }
-    });
+    input0.addKeyUpHandler(
+        new KeyUpHandler() {
+          @Override
+          public void onKeyUp(KeyUpEvent event) {
+            doCompile();
+          }
+        });
 
     HorizontalPanel panel = new HorizontalPanel();
     VerticalPanel leftPane = new VerticalPanel();