Performance and stability improvements on all platforms.

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

Change-Id: I2ff5999ad0373484fddcc319114db105efe146ba
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1660599
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.7.81@{#1}
Cr-Branched-From: 63a9919af3a5f37588b2d03efaeefb3a479fbfeb-refs/heads/master@{#62188}