Resync webaudio tests from upstream WPT.
Created attachment 431589 [details] Patch
Comment on attachment 431589 [details] Patch rs=me
Committed r278961 (238888@main): <https://commits.webkit.org/238888@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 431589 [details].
<rdar://problem/79419566>