It invalidates too much with accurate class/attribute invalidation.
Created attachment 333847 [details] patch
Created attachment 333854 [details] patch
Created attachment 333857 [details] patch
Comment on attachment 333857 [details] patch Clearing flags on attachment: 333857 Committed r228497: <https://trac.webkit.org/changeset/228497>
All reviewed patches have been landed. Closing bug.
<rdar://problem/37554910>