Performance and stability improvements on all platforms.

TBR=v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com

Change-Id: I077154febd88b163c6f2ad2762359b42d315cdd3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1649522
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.7.26@{#1}
Cr-Branched-From: f3462466e096f2088a5be89c03b28218080323b3-refs/heads/master@{#62053}