Other threads may write the stack of a different thread and use a lock
to synchronize such an access. An example for this is interrupt
handling.

Ignore TSAN for the methods performing the stack walk. There's no need
to use relaxed atomic reads as same-thread writes are consistent and
for other-thread writes there's no guarantee on what values to observe.

Bug: chromium:1245409
Change-Id: Ia3d3621590f1f5524d245632a2e8a2db23313f35
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3135573
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76622}