Currently we initialize PerIsolateData before entering an Isolate, which prevents us from using an Isolate in the PerIsolateData constructor. We should enter an Isolate first and then initialize PerIsolateData.
Created attachment 177373 [details] Patch
Comment on attachment 177373 [details] Patch Clearing flags on attachment: 177373 Committed r136479: <http://trac.webkit.org/changeset/136479>
All reviewed patches have been landed. Closing bug.