Resync shadow DOM tests as of 62d977d3e3161a900aecd007ff3fc88b621fdc65.
Created attachment 436844 [details] Resync'ed tests
Created attachment 436845 [details] Resync'ed tests
Committed r281814 (241150@main): <https://commits.webkit.org/241150@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 436845 [details].
<rdar://problem/82590639>