Performance and stability improvements on all platforms.

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

Change-Id: Ie1828186c68ac4af2df279f1094d676b1fca2614
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1660589
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.7.77@{#1}
Cr-Branched-From: 76d33a174eb1838015f499f7d9cae2800d5d229b-refs/heads/master@{#62169}