Maplike infrastructure ASSERT()s if the first operation is a delete of a existing values
Created attachment 438780 [details] Patch
Created attachment 438781 [details] Patch
Created attachment 438782 [details] Patch
Committed r282805 (241937@main): <https://commits.webkit.org/241937@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 438782 [details].
<rdar://problem/83343094>