Class reserved word not honored

[jtmcdole]

Adding a new test and noticed the VM failed:

// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// Test that "class" cannot be used as identifier.

class foo {}
void main() {
  int class = 10; /// 01: compile-time error
  print("$class"); /// 02: compile-time error
}

[iposva-google]

Matthias can you and Gilad determine whether the above example is legal Dart code or whether it should give a compile-time error as this test suggests.

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Set owner to @mhausner.

[DartBot]

This comment was originally written by @mhausner

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The checked-in grammar (dart/language/grammar/Dart.g) defines 'class' as a pseudo-keyword. The language spec calls these built-in identifiers. In the language spec, 'class' is not a built-in identifier but a proper keyword.

As it happens, Gilad just walked in and explained that 'class' is a keyword (more precisely: reserved word for future use) in ECMA script 5th edition and thus there is no need for us to treat it as a pseudo-keyword.

I will change the VM compiler to make it a proper keyword.

[DartBot]

This comment was originally written by @mhausner

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Fixed @­2533.

[DartBot]

This comment was originally written by @mhausner

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Really.

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Added Fixed label.