... which shouldn't try to change permissions of RWX pages.

Bug: v8:12797
Change-Id: Ibf3de06f5243c2008a8d9dc41f6231373f844e40
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3700352
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81099}