We can skip one function call in the typical case. This is lukewarm (0.2%) on the DOM/CreateNodes perf test.
Created attachment 143491 [details] Patch of Glory
Comment on attachment 143491 [details] Patch of Glory Clearing flags on attachment: 143491 Committed r118173: <http://trac.webkit.org/changeset/118173>
All reviewed patches have been landed. Closing bug.