R=rossberg@chromium.org,arv@chromium.org
BUG=v8:3930
LOG=Y

Committed: https://crrev.com/87f3e08e72510ee5544e82bb7ad39b2b5f001ad3
Cr-Commit-Position: refs/heads/master@{#26925}

Review URL: https://codereview.chromium.org/962263002

Cr-Commit-Position: refs/heads/master@{#26931}