I'm going to disable error logging to fix regression (https://bugs.webkit.org/show_bug.cgi?id=113142) because correct logging requires grammar refactoring.
We might want consider importing:
Restored error logging.
Created attachment 202970 [details]
Comment on attachment 202970 [details]
Clearing flags on attachment: 202970
Committed r150791: <http://trac.webkit.org/changeset/150791>
All reviewed patches have been landed. Closing bug.