Performance and stability improvements on all platforms.

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

Change-Id: If35bf424184e66b5ddbba42050d2ee860c16b620
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1653295
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.7.47@{#1}
Cr-Branched-From: 3b8c624bda58d05aea80dd9626cd550537d6ac3f-refs/heads/master@{#62097}