... by using cage-friendly versions of HeapObject::IsBlah(),
HeapObject::map(), HeapObject::map_word() and HeapObject::Size()
on hot paths.

Bug: v8:11880
Change-Id: I70b72e46cc867b6b2ddbc48cd5e6a74ae4208397
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308800Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78161}