Heap::m_executables sometimes gets pretty large. I have one with a 500kB backing store here with only a couple thousand entries.
Created attachment 270266 [details] Patch
Comment on attachment 270266 [details] Patch Clearing flags on attachment: 270266 Committed r195905: <http://trac.webkit.org/changeset/195905>
All reviewed patches have been landed. Closing bug.