Performance and stability improvements on all platforms.

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

Change-Id: I359314d61367d452cd10d0ac21636b8d1ccb5762
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1666466
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.7.105@{#1}
Cr-Branched-From: 1eab04b7264552325cfe3b5bbbd9f6f9be4f27e7-refs/heads/master@{#62264}