which will eventually replace kPointerSize[Log2] to make it explicit what kind
of values is expected. With enabled pointer compression these sizes will not
be equal anymore.

This CL starts an incremental migration to proper constants.

Bug: v8:8477, v8:8238
Change-Id: Ia134d5a1c0639d9f9103d7a88bf87211e353ad50
Reviewed-on: https://chromium-review.googlesource.com/c/1340298Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57614}