Fix a a few parse errors to be correctly emitted and add a global in test_parser.py to control whether the errors are checked in the parser tests
Fix a a few parse errors to be correctly emitted and add a global in test_parser.py to control whether the errors are checked in the parser tests

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extra : convert_revision : svn%3Aacbfec75-9323-0410-a652-858a13e371e0/trunk%40452

aredridel/html5,Chiens/html5