is_deprecated and is_stable are mutable and can be changed
concurrently.  We protect against changes through dependencies. CHECKs
on such fields are invalid.

Bug: v8:7790,chromium:1234206
Change-Id: I9bb7fab0342e0e2c33377c162b1912a8f93e760b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3059682
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75973}