The lookup is safe during executing pre-finalizers which requires that
the GC is put in the atomic pause.

Bug: chromium:1307471
Change-Id: I4e61573f5cadf2585daab24d73ad798004d54188
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545173
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79572}