The breaking change was
https://chromium-review.googlesource.com/c/v8/v8/+/1658157

Bug: v8:9359
Change-Id: I6fa956631a8e475123cf6f8f44e66f2c499d47b7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1660627
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62207}