PagedSpace::RefillFreeList() needs to invoke wasted_memory()
while holding the lock. Otherwise this races with
PagedSpace::FreeLinearAllocationArea() which uses add_wasted_memory()
and already holds the lock.

Bug: v8:10315
Change-Id: I3a57191529cdd81d75833ec334a57f84a9a59194
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2428930Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70126}