Remove duplicate LayerTreeAsText enums and use an OptionSet<>
Created attachment 435744 [details] Patch
Created attachment 435746 [details] Patch
Created attachment 435747 [details] Patch
Created attachment 435748 [details] Patch
Committed r281238 (240675@main): <https://commits.webkit.org/240675@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 435748 [details].
<rdar://problem/82127156>