Instead of returning false and failing in the caller, do fail inside the
PageAllocator directly. Failure to free pages should never happen, and
handling this case in the PageAllocator directly gives us better options
to surface more detailed information in follow-up patches.

R=mlippautz@chromium.org

Bug: v8:12656, chromium:1299735
Change-Id: I6d2aa3a5613c0f1102210fccbccc6ad0e522a6ed
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3484323Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79276}