Looks like JSBench doesn't like it when we wipe the RegExp cache. :|
Created attachment 280668 [details] Patch for landing Hand-rolled rollout patch for landing here we go.
Comment on attachment 280668 [details] Patch for landing Clearing flags on attachment: 280668 Committed r201741: <http://trac.webkit.org/changeset/201741>
All reviewed patches have been landed. Closing bug.