const_iterator and hasNullReferences of WeakHashSet should trigger amortized cleanup like WeakHashMap.
Pull request: https://github.com/WebKit/WebKit/pull/9076
Committed 259341@main (58e8ab36fc7d): <https://commits.webkit.org/259341@main> Reviewed commits have been landed. Closing PR #9076 and removing active labels.
<rdar://problem/104635341>