Update Clang r223109 with new cherry-picks

Update Clang r223109 with new cherry-picks

This contains fixes for http://llvm.org/PR21899 which was causing assert
failures in typo correction.

Cherry-picks: 223177, 223209, 223705, 224172, 224173

(Since we cannot deploy the same version twice, this sets the revision
to r223108 which only differs in a test file.)

BUG=431803
NOTRY=true

Committed: https://crrev.com/402db406144dea24212dd659c9ecc81c4ff5f607
Cr-Commit-Position: refs/heads/master@{#308361}

[hans, 2014-12-13 21:26:00]

hans@chromium.org changed reviewers:
+ thakis@chromium.org

[hans, 2014-12-13 21:26:01]

Please take a look.

[Nico, 2014-12-13 22:17:35]

On 2014/12/13 21:26:01, hans wrote:
> Please take a look.

Lgtm

With a mix of :-/ and :-)

[hans, 2014-12-15 14:47:48]

The CQ bit was checked by hans@chromium.org

[commit-bot: I haz the power, 2014-12-15 14:48:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/805513003/60001

[commit-bot: I haz the power, 2014-12-15 14:51:32]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-12-15 14:51:33]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[hans, 2014-12-15 16:26:52]

The CQ bit was checked by hans@chromium.org

[commit-bot: I haz the power, 2014-12-15 16:28:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/805513003/60001

[commit-bot: I haz the power, 2014-12-15 16:28:57]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2014-12-15 16:29:40]

Patchset 4 (id:??) landed as
https://crrev.com/402db406144dea24212dd659c9ecc81c4ff5f607
Cr-Commit-Position: refs/heads/master@{#308361}