R=jgruber@chromium.org
BUG=v8:5530

Review-Url: https://codereview.chromium.org/2642253005
Cr-Original-Commit-Position: refs/heads/master@{#42543}
Committed: https://chromium.googlesource.com/v8/v8/+/e26a58e43c51a680a0a6363e0066886f4971a41f
Review-Url: https://codereview.chromium.org/2642253005
Cr-Commit-Position: refs/heads/master@{#42595}