Since the overall motionmark regression is minor (<0.5%), we decided to
get benefits of pointer compression on M1. The CL can also slightly
regress speedometer2 (~0.3%).

Bug: chromium:1325007
Change-Id: Ib278f0e82e0ebde563caac79b9f32edfe2d09a53
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3840301
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Auto-Submit: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82586}