BUG=v8:8040

Change-Id: I705f9afebfa770a8415fa268dd13ba00e90808d4
Reviewed-on: https://chromium-review.googlesource.com/1181429
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55260}