Require an existing AtomString for HTMLDocument's named getter parameter. There is no point in allocating a new AtomString as the AtomString should already exist if there is any element with this name.
Created attachment 457628 [details] Patch
Committed r292885 (249655@main): <https://commits.webkit.org/249655@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 457628 [details].
<rdar://problem/91771611>