[es6] Fix parsing of 'yield' in function and generator expressions

test/test262/test262.status

 # Copyright 2011 the V8 project authors. All rights reserved.
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 # modification, are permitted provided that the following conditions are
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 #
 #     * Redistributions of source code must retain the above copyright
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 #       copyright notice, this list of conditions and the following
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@@ skipping 161 matching lines @@
   'built-ins/Array/prototype/Symbol.iterator': [FAIL],
   'built-ins/Array/prototype/values/returns-iterator': [FAIL],
   'built-ins/Array/prototype/values/returns-iterator-from-object': [FAIL],
   'built-ins/Array/prototype/values/prop-desc': [FAIL],
   'built-ins/Array/prototype/values/name': [FAIL],
   'built-ins/Array/prototype/values/length': [FAIL],
   'built-ins/Array/prototype/values/iteration': [FAIL],
   'built-ins/Array/prototype/values/iteration-mutable': [FAIL],
   'built-ins/Array/prototype/Symbol.unscopables/value': [FAIL],
 
-  #https://code.google.com/p/v8/issues/detail?id=3983
-  'language/expressions/generators/yield-as-function-expression-binding-identifier': [FAIL],
-  'language/expressions/generators/yield-as-generator-expression-binding-identifier': [FAIL],
-  'language/expressions/object/method-definition/generator-argSuperProperty': [FAIL],
-  'language/expressions/object/method-definition/yield-as-function-expression-binding-identifier': [FAIL],
-  'language/statements/generators/yield-as-function-expression-binding-identifier': [FAIL],
-
   # https://code.google.com/p/v8/issues/detail?id=3566
   'built-ins/GeneratorPrototype/return/from-state-completed': [FAIL],
   'built-ins/GeneratorPrototype/return/from-state-suspended-start': [FAIL],
   'built-ins/GeneratorPrototype/return/property-descriptor': [FAIL],
   'built-ins/GeneratorPrototype/return/try-catch-before-try': [FAIL],
   'built-ins/GeneratorPrototype/return/try-catch-following-catch': [FAIL],
   'built-ins/GeneratorPrototype/return/try-catch-within-catch': [FAIL],
   'built-ins/GeneratorPrototype/return/try-catch-within-try': [FAIL],
   'built-ins/GeneratorPrototype/return/try-finally-before-try': [FAIL],
   'built-ins/GeneratorPrototype/return/try-finally-following-finally': [FAIL],
@@ skipping 479 matching lines @@
   'language/statements/function/S13.2.2_A19_T8': [SKIP],
   'language/statements/while/S12.6.2_A4_T5': [SKIP],
 }],  # ignition == True
 
 ['ignition == True and (arch == arm or arch == arm64)', {
   'built-ins/encodeURI*': [SKIP],
   'intl402/9.2.2': [SKIP],
 }],  # ignition == True and (arch == arm or arch == arm64)
 
 ]