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are caught and reported as errors. 5417103: Add a setjmp around Dart_Run_Loop so that parse errors are caught and reported as errors. Review URL: https://chromereviews.googleplex.com/3553012 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@140 260f80e4-7a28-3924-810f-c04153c831b5