This saves a lot of memory on bigger Wasm functions, which typically do
not contain a lot of references (and no deoptimization data). Most
entries can be collapsed there. We might also see some improvements on
JavaScript code.

R=jkummerow@chromium.org

Bug: v8:12401
Change-Id: Ia12611de52c1ccd755d0a48ea0569ceb18716884
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306975
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78147}