Port of https://chromium-review.googlesource.com/c/v8/v8/+/3024146 to arm.

Adds DCHECKs after emitting any code on the heap.

Bug: v8:11872
Change-Id: Ia8186143e3caca17a25f8fb23c378e64cc248095
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3024158Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75721}