Reduce Vector<> wasted capacity in some RuleSet code
Created attachment 425109 [details] Patch
commit-queue failed to commit attachment 425109 [details] to WebKit repository. To retry, please set cq+ flag again.
https://trac.webkit.org/changeset/275633/webkit
<rdar://problem/76369555>
Re-opened since this is blocked by bug 227373
Created attachment 434899 [details] reland
Created attachment 434901 [details] reland
Committed r280638 (240251@main): <https://commits.webkit.org/240251@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 434901 [details].