Status: New
Owner: ----

New issue 4008 by [email protected]: Duplicate Class Definition names produce a TypeError, not SyntaxError
https://code.google.com/p/v8/issues/detail?id=4008

Replicate with:

  class A {}
  class A {}


14.5.14 Runtime Semantics: ClassDefinitionEvaluation https://people.mozilla.org/~jorendorff/es6-draft.html#sec-class-definitions

  4. If className is not undefined, then
      Perform classScopeEnvRec.CreateImmutableBinding(className, true).



8.1.1.4.3 CreateImmutableBinding (N, S) https://people.mozilla.org/~jorendorff/es6-draft.html#sec-global-environment-records-createimmutablebinding-n-s

  3. If DclRec.HasBinding(N) is true, throw a TypeError exception.






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