%TypedArray%.from must do mapping and putting in lockstep
Created attachment 410577 [details] Patch
Comment on attachment 410577 [details] Patch r=me
Committed r268037: <https://trac.webkit.org/changeset/268037> All reviewed patches have been landed. Closing bug and clearing flags on attachment 410577 [details].
<rdar://problem/69987641>