IsoAlignedMemoryAllocator should use BitVector
Created attachment 428785 [details] Patch
Created attachment 428786 [details] Patch
Comment on attachment 428786 [details] Patch r=me
Committed r277572 (237800@main): <https://commits.webkit.org/237800@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 428786 [details].
<rdar://problem/78080601>