ESLint catches a number of "==" => "===" and "!=" => "!===" cases. However ESLint is failing on files with ES6 syntax (for..of) so I caught a few more by just searching around.
Created attachment 237832 [details] [PATCH] Proposed Fix
Comment on attachment 237832 [details] [PATCH] Proposed Fix Clearing flags on attachment: 237832 Committed r173433: <http://trac.webkit.org/changeset/173433>
All reviewed patches have been landed. Closing bug.