[WebIDL] Simplify generation of runtime conditionally read-write attributes
Created attachment 432861 [details] Patch
Committed r279558 (239389@main): <https://commits.webkit.org/239389@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 432861 [details].
<rdar://problem/80153631>
Re-opened since this is blocked by bug 227732
https://trac.webkit.org/changeset/279546/webkit caused 2-3% regression in Speedometer2/jQuery-TodoMVC and it was hard to revert r279546 without reverting this change. Please reland this without r279546 change, thanks!
This got reverted into this: https://github.com/WebKit/WebKit/commit/d0333311de3aab7c2067acc61e7b9e0eb881eb03 Is this needed anymore? Thanks!