Revert of Roll clang 247874:253678

Revert of Roll clang 247874:253678 (patchset #1 id:1 of https://codereview.chromium.org/1461003007/ )

Reason for revert:
MSan was broken by the roll.

Original issue's description:
> Roll clang 247874:253678
>
> Also revert https://codereview.chromium.org/1375193005 for bootstrap builds,
> else compiler-rt won't build in that config.  See comment 45 on the bug.
>
> BUG=538614
> R=thakis@chromium.org
>
> Committed: https://chromium.googlesource.com/chromium/src/+/6a0a6e2c285cf215a15755ab9d32b386947a77b1

TBR=thakis@chromium.org,thestig@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=538614, 559530
Committed: https://crrev.com/c21ad3ccd0ca211b8403966826ce44b7034daf91
Cr-Commit-Position: refs/heads/master@{#361010}

[hans, 2015-11-21 06:06:17]

Created Revert of Roll clang 247874:253678

[hans, 2015-11-21 06:06:41]

Description was changed from

==========
Revert of Roll clang 247874:253678 (patchset #1 id:1 of
https://codereview.chromium.org/1461003007/ )

Reason for revert:
MSan was broken by the roll.

Original issue's description:
> Roll clang 247874:253678
> 
> Also revert https://codereview.chromium.org/1375193005 for bootstrap builds,
> else compiler-rt won't build in that config.  See comment 45 on the bug.
> 
> BUG=538614
> R=thakis@chromium.org
> 
> Committed:
https://chromium.googlesource.com/chromium/src/+/6a0a6e2c285cf215a15755ab9d32...

TBR=thakis@chromium.org,thestig@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=538614
==========

to

==========
Revert of Roll clang 247874:253678 (patchset #1 id:1 of
https://codereview.chromium.org/1461003007/ )

Reason for revert:
MSan was broken by the roll.

Original issue's description:
> Roll clang 247874:253678
> 
> Also revert https://codereview.chromium.org/1375193005 for bootstrap builds,
> else compiler-rt won't build in that config.  See comment 45 on the bug.
> 
> BUG=538614
> R=thakis@chromium.org
> 
> Committed:
https://chromium.googlesource.com/chromium/src/+/6a0a6e2c285cf215a15755ab9d32...

TBR=thakis@chromium.org,thestig@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=538614, 559530
==========

[hans, 2015-11-21 06:06:41]

hans@chromium.org changed reviewers:
- thestig@chromium.org

[hans, 2015-11-21 06:07:00]

The CQ bit was checked by hans@chromium.org

[commit-bot: I haz the power, 2015-11-21 06:07:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1460503011/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1460503011/1

[commit-bot: I haz the power, 2015-11-21 06:07:47]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-21 06:08:43]

Patchset 1 (id:??) landed as
https://crrev.com/c21ad3ccd0ca211b8403966826ce44b7034daf91
Cr-Commit-Position: refs/heads/master@{#361010}