We see too many regressions for now in M94 (~10% more misses in
some cases).

This CL reverts the logic to the state before landing
https://crrev.com/c/3069152 without having to revert the several
refactoring CLs that landed on top of it.

Bug: v8:10284, chromium:1238312, chromium:1237242
Change-Id: I57e66b9e0d58c36d2f1563b07720e3729c88ec94
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3103006
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76362}