Outside of unittests, if someone tried to delete a GCed object manually
they would get a silent crash without a stacktrace or any error
messages. This CL replaces the silent crash with an informative message.

Change-Id: Ied8895dab43ce7e3a9bf778b13e77d377d269fce
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3468346
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Auto-Submit: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79141}