When using the single-transition optimization, StructureTransitionTable sometimes holds on to a WeakImpl after its pointee has been collected. This causes us to unnecessarily extend the lifetime of WeakBlocks.
Created attachment 259953 [details] Patch
Comment on attachment 259953 [details] Patch r=me
Comment on attachment 259953 [details] Patch Clearing flags on attachment: 259953 Committed r188978: <http://trac.webkit.org/changeset/188978>
All reviewed patches have been landed. Closing bug.