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http://code.google.com/p/dart/issues/detail?id=3752 Now we always record comments and bind them to nodes. We record DartMetadata for each DartDeclaration with flags for @deprecated and @override. In this CL we analyze @override and report error if method does not actually override anything. R=brianwilkerson@google.com BUG= TEST= Review URL: https://chromiumcodereview.appspot.com//10661022 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9129 260f80e4-7a28-3924-810f-c04153c831b5