- Allow disabling filtering of objects
- Allow disabling visitation of map pointer
- Strongly suggest to compiler to inline visitation.

Bug: v8:736641
Change-Id: I1894eaf86b4fd368b66d75b8deca1c9ab273059d
Reviewed-on: https://chromium-review.googlesource.com/547716
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46213}