BUG=v8:5203

Change-Id: Id7f1b3a50f5f407e9fdada8a5b62a7ada8d966df
Reviewed-on: https://chromium-review.googlesource.com/593951Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47015}