R=jarin@chromium.org

Change-Id: I47b506599ae338e8323ef0def63db3b2004ac798
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1594562Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61242}