This is a reland of edcc8ff5

Cause for previous revert was addressed by crbug.com/1241773.

Original change's description:
> cppgc: Enable checks for assignments in prefinalizers
>
> Bug: v8:11749
> Change-Id: Ic027f732030fb6a2befeffeca9db2eacfd0830a5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3099953
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Omer Katz <omerkatz@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76370}

Bug: v8:11749
Change-Id: I57fc138ace002d41e54f7f70250e4d19bc9262b0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3122153
Auto-Submit: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76553}