With dynamic tiering, caching is triggered multiple times as there is
no single event anymore that triggers when the module should be cached.

This CL adds a counter for the number of times caching is triggered.
This counter can indicate whether our current caching heuristics are
good or should get adjusted.

R=thibaudm@chromium.org

Bug: v8:12281
Change-Id: I8ed9ed73a556d11df643c31ec6d20760a257e0d4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3295578Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78045}