See referenced bugs for links.

NOTRY=true

Bug: v8:5193,v8:7702
Change-Id: I380479405f46cfc32d6cfa728fb86297f6d4f43c
Reviewed-on: https://chromium-review.googlesource.com/1032436Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52834}