Reduce branching a little under JSNodeOwner::isReachableFromOpaqueRoots().
Pull request: https://github.com/WebKit/WebKit/pull/864
Committed r294605 (250831@main): <https://commits.webkit.org/250831@main> Reviewed commits have been landed. Closing PR #864 and removing active labels.
<rdar://problem/93691069>