Start preparing the code base for making the AtomString(const String&) constructor explicit. This helps us find cases where we atomize unnecessarily or not early enough, thus causing unnecessary String allocations.
Pull request: https://github.com/WebKit/WebKit/pull/361
Committed r293292 (249917@main): <https://commits.webkit.org/249917@main> Reviewed commits have been landed. Closing PR #361 and removing active labels.
<rdar://problem/92218533>