This commit will likely capture several perf alerts from bots that hung.

All allerts might be attributable to the I+TF switch.

BUG=v8:6067
NOTRY=true
NOTREECHECKS=true
NOPRESUBMIT=true
TBR=hablich@chromium.org

Change-Id: Ie6d0dc977823f8740856904bdcf157c8b021d60b
Reviewed-on: https://chromium-review.googlesource.com/455776Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43817}