fix(parser): Fix a bunch of edge cases

package.json

@@ -1,6 +1,6 @@
 {
   "name": "meriyah",
-  "version": "0.2.9",
+  "version": "0.2.10",
   "description": "A 100% compliant, self-hosted javascript parser with high focus on both performance and stability",
   "main": "dist/meriyah.umd.js",
   "module": "dist/meriyah.esm.js",

src/common.ts

@@ -79,7 +79,7 @@ export const enum BindingOrigin {
 export const enum AssignmentKind {
   None           = 0,
   IsAssignable   = 1 << 0,
-  CannotAssign  = 1 << 1
+  CannotAssign   = 1 << 1
 }
 
 export const enum DestructuringKind {
@@ -102,9 +102,7 @@ export const enum Flags {
   NewLine             = 1 << 0,
   HasConstructor      = 1 << 5,
   Octals              = 1 << 6,
-  SimpleParameterList = 1 << 7,
-  Await               = 1 << 8,
-  Yield               = 1 << 9,
+  SimpleParameterList = 1 << 7
 }
 
 export const enum FunctionStatement {

src/errors.ts

@@ -74,8 +74,6 @@ export const enum Errors {
   IllegalContinue,
   IllegalBreak,
   InvalidLetBracket,
-  InvalidArrayCompoundAssignment,
-  InvalidObjCompoundAssignment,
   InvalidDestructuringTarget,
   InvalidRestObjBinding,
   RestDefaultInitializer,
@@ -158,7 +156,8 @@ export const enum Errors {
   InvalidImportTail,
   ImportNotOneArg,
   InvalidImportNew,
-  InvalidSpreadInImport
+  InvalidSpreadInImport,
+  UncompleteArrow
 }
 
 /*@internal*/
@@ -243,8 +242,6 @@ export const errorMessages: {
   [Errors.IllegalContinue]: 'Illegal continue statement',
   [Errors.IllegalBreak]: 'Illegal break statement',
   [Errors.InvalidLetBracket]: 'Cannot have `let[...]` as a var name in strict mode',
-  [Errors.InvalidArrayCompoundAssignment]: 'Cannot compound-assign to an array literal',
-  [Errors.InvalidObjCompoundAssignment]: 'Cannot compound-assign to an object literal',
   [Errors.InvalidDestructuringTarget]: 'Invalid destructuring assignment target',
   [Errors.InvalidRestObjBinding]:
     'The rest argument of an object binding pattern must always be a simple ident and not an array pattern',
@@ -330,7 +327,8 @@ export const errorMessages: {
   [Errors.InvalidImportTail]: 'Trailing comma is disallowed inside import(...) arguments',
   [Errors.ImportNotOneArg]: 'import() requires exactly one argument',
   [Errors.InvalidImportNew]: 'Cannot use new with import(...)',
-  [Errors.InvalidSpreadInImport]: '... is not allowed in import()'
+  [Errors.InvalidSpreadInImport]: '... is not allowed in import()',
+  [Errors.UncompleteArrow]: "Expected '=>'"
 };
 
 export class ParseError extends SyntaxError {