It is a typo, assert instead ASSERT.
Created attachment 228819 [details] Proposed patch
Comment on attachment 228819 [details] Proposed patch r=me
Comment on attachment 228819 [details] Proposed patch Clearing flags on attachment: 228819 Committed r166921: <http://trac.webkit.org/changeset/166921>
All reviewed patches have been landed. Closing bug.