This method will be used in the marking visitors to stop marking into
the shared heap from e.g. worker or client heaps.

Bug: v8:13267
Change-Id: I7a099a3f816fa5d867d6a99558838389914e3048
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3904606
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83308}