Now that --concurrent-inlining is already using LocalHeaps and requires
a global safepoint, let's measure how long it takes to stop-the-world.

Bug: v8:10315
Change-Id: I90f451448199fd43b9991849f4343f77e4aa3813
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2300544Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68886}