Support for parsing 'class name = mixinApplication', report error for 'typedef name = mixinApplication'.
Support for parsing 'class name = mixinApplication', report error for 'typedef name = mixinApplication'.

-1 failing co19 test.
About 60 new failing tests (because of using 'typedef' for mixin).

R=brianwilkerson@google.com, jwren@google.com
BUG=

Review URL: https://codereview.chromium.org//26466005

git-svn-id: c93d8a2297af3b929165606efe145742a534bc71@28379 260f80e4-7a28-3924-810f-c04153c831b5

dartino/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-lang/sdk,dart-lang/sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk