[WebIDL] Don't generate setters for global constructor properties
Created attachment 422715 [details] Patch
<rdar://problem/75482675>
Committed r274647: <https://commits.webkit.org/r274647> All reviewed patches have been landed. Closing bug and clearing flags on attachment 422715 [details].
Thanks Alex! It's non-trivial to review w/o test case + CustomValue is quite weird. I appreciate it!