We'll eventually map each relevant map to a PropertyAccessInfo at
serialization time.

Bug: v8:7790
Change-Id: I739075af3629359f43acfdeb609112f355f1bd38
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1565899
Commit-Queue: Georg Neis <neis@chromium.org>
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60872}