The objective is to pass Isolate around in V8 bindings. In this bug we pass Isolate to toV8(). I've landed a bunch of patches to pass Isolate to toV8(), and this would be the last patch for passing Isolate to toV8().
Created attachment 142144 [details] Patch
Comment on attachment 142144 [details] Patch Clearing flags on attachment: 142144 Committed r117381: <http://trac.webkit.org/changeset/117381>
All reviewed patches have been landed. Closing bug.