In this part: map

Bug: v8:11111
Change-Id: I1fa9aa7ca78e8023242e75b61e8ec6b1902ccd84
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3762571
Auto-Submit: Marja Hölttä <marja@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81739}