Some tests contain _ as first character in named argument name

[DartBot]

This issue was originally filed by [email protected]

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Ran into this problem when adding the check specified in spec v 0.10 section 6.2:

"It is a compile-time error if the name of a named optional parameter begins with an character."

ERROR|RESOLVER|NAMED_PARAMETERS_CANNOT_START_WITH_UNDER|file:/home/zundel/dart-all/dart/tests/language/named_parameters_with_object_property_names_test.dart/named_parameters_with_object_property_names_test.dart|162|1|70|Named parameters cannot start with an '_' character
   161: }
   162: globalMethod___noSuchMethod__([noSuchMethod]) => noSuchMethod;
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Affects test: language/named_parameters_with_object_property_names_test.dart

Another problem is a method in the dartium library which I will file separately.

[DartBot]

This comment was originally written by [email protected]

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Added Duplicate label.
Marked as being merged into #2137.