This test is failing in isolated tree mode.
<rdar://problem/94589697>
Created attachment 460081 [details] Patch
Created attachment 460144 [details] Patch
Created attachment 460159 [details] Patch
Created attachment 460161 [details] Patch
Committed r295491 (251496@main): <https://commits.webkit.org/251496@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 460161 [details].