Wrong lookahead when parsing for loop const variable.

[crelier]

See:

tests/co19/src/Language/11_Statements/05_For/2_For_in_A01_t02.dart
tests/co19/src/Language/11_Statements/05_For/2_For_in_A01_t04.dart

regis@belenos:/dart1/dart/runtime$ out/DebugIA32/dart --ignore-unrecognized-flags /usr/local/google/home/regis/dart1/dart/tests/co19/src/Language/11_Statements/05_For/2_For_in_A01_t02.dart
'file:///usr/local/google/home/regis/dart1/dart/tests/co19/src/Language/11_Statements/05_For/2_For_in_A01_t02.dart': Error: line 32 pos 19: '(' expected
    for (const id in e);
                  ^
regis@belenos:/dart1/dart/runtime$ out/DebugIA32/dart --ignore-unrecognized-flags /usr/local/google/home/regis/dart1/dart/tests/co19/src/Language/11_Statements/05_For/2_For_in_A01_t04.dart
'file:///usr/local/google/home/regis/dart1/dart/tests/co19/src/Language/11_Statements/05_For/2_For_in_A01_t04.dart': Error: line 38 pos 20: '(' expected
    for ( const id in l ) {
                   ^

[iposva-google]

Added this to the M2 milestone.
Added Accepted label.

[DartBot]

This comment was originally written by @mhausner

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Fixed this in r13255.

Filed co19 issue #240 (https://code.google.com/p/co19/issues/detail?id=240) since the test is wrong.

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Added Fixed label.