Performance and stability improvements on all platforms.

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

Change-Id: I71dffb75644bf63a804308c578fe86b634d119b1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1687996
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.7.186@{#1}
Cr-Branched-From: a80a6e31aae5509bcf042644413a123dc23ddc94-refs/heads/master@{#62534}