Some basic optimizations.
Created attachment 385991 [details] patch
Created attachment 385992 [details] patch
Created attachment 385999 [details] patch
Comment on attachment 385999 [details] patch Clearing flags on attachment: 385999 Committed r253717: <https://trac.webkit.org/changeset/253717>
All reviewed patches have been landed. Closing bug.
<rdar://problem/58056975>