Performance and stability improvements on all platforms.

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

Change-Id: I39ca1f0cd6cce758df3d1242ab518d0694320871
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1661799
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.7.89@{#1}
Cr-Branched-From: 994db732100ebfacdbb998a4a4e8ff0b540912b6-refs/heads/master@{#62214}