Make generators non-constructable.

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
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
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@@ skipping 364 matching lines @@
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=4628
   'language/eval-code/non-definable-function-with-variable': [FAIL],
   'language/eval-code/non-definable-function-with-function': [FAIL],
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=4592
   'built-ins/ArrayBuffer/length-is-absent': [FAIL],
   'built-ins/ArrayBuffer/length-is-not-number': [FAIL],
   'built-ins/ArrayBuffer/positive-integer-length': [FAIL],
 
-  # https://bugs.chromium.org/p/v8/issues/detail?id=4630
-  'language/statements/generators/invoke-as-constructor': [FAIL],
-  'language/expressions/generators/invoke-as-constructor': [FAIL],
-  'language/expressions/object/method-definition/generator-invoke-ctor': [FAIL],
-
   # https://bugs.chromium.org/p/v8/issues/detail?id=4633
   'built-ins/Promise/reject-function-name': [FAIL],
   'built-ins/Promise/resolve-function-name': [FAIL],
   'built-ins/Promise/all/resolve-element-function-name': [FAIL],
   'built-ins/Promise/executor-function-name': [FAIL],
   'built-ins/Promise/all/capability-executor-not-callable': [FAIL],
   'built-ins/Promise/reject/capability-executor-not-callable': [FAIL],
   'built-ins/Promise/race/capability-executor-not-callable': [FAIL],
   'built-ins/Promise/prototype/then/capability-executor-not-callable': [FAIL],
   'built-ins/Promise/resolve/capability-executor-not-callable': [FAIL],
@@ skipping 327 matching lines @@
   'built-ins/decodeURIComponent/S15.1.3.2_A1.2_T2': [SKIP],
   'built-ins/encodeURI*': [SKIP],
   'intl402/9.2.2': [SKIP],
   'language/statements/let/fn-name-arrow': [SKIP],
   'language/statements/let/fn-name-cover': [SKIP],
   'language/statements/let/fn-name-fn': [SKIP],
   'language/statements/let/fn-name-gen': [SKIP],
 }],  # ignition == True and (arch == arm or arch == arm64)
 
 ]