Roll clang 315613:317263.

Bug: 775171

Change-Id: I5e930bc3368948673c02b2be325a2ad03ae58606
Reviewed-on: https://chromium-review.googlesource.com/752143
Reviewed-by: Reid Kleckner <rnk@chromium.org>
Commit-Queue: Hans Wennborg <hans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#513697}
2 files changed