... which works for stale pointers. The default == operator contains
a DCHECK guarding against Code vs. non-Code object comparisons and
thus it can't be used for stale pointer.

Bug: chromium:1360793, v8:11880
Change-Id: Ic5faf9b05e1586a15388cc1cbf3e8dcddbea452f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3879222
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83028}