See  issue 82385 

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/tools/build.git/+/d59e001d43dbf3c9f16bb04d11220e6c257771d2

commit d59e001d43dbf3c9f16bb04d11220e6c257771d2
Author: machenbach@chromium.org <machenbach@chromium.org>
Date: Wed Apr 13 13:12:43 2016

V8: Add win-clang fyi bot.

BUG= 603011 

Review URL: https://codereview.chromium.org/1886733002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/build@299889 0039d316-1c4b-4281-b951-d872f2087c98

[modify] https://crrev.com/d59e001d43dbf3c9f16bb04d11220e6c257771d2/masters/master.client.v8/mail_notifier_cfg.py
[modify] https://crrev.com/d59e001d43dbf3c9f16bb04d11220e6c257771d2/masters/master.client.v8/master.cfg
[modify] https://crrev.com/d59e001d43dbf3c9f16bb04d11220e6c257771d2/masters/master.client.v8/slaves.cfg
[modify] https://crrev.com/d59e001d43dbf3c9f16bb04d11220e6c257771d2/scripts/slave/gatekeeper.json
[modify] https://crrev.com/d59e001d43dbf3c9f16bb04d11220e6c257771d2/scripts/slave/recipe_modules/v8/builders.py
[add] https://crrev.com/d59e001d43dbf3c9f16bb04d11220e6c257771d2/scripts/slave/recipes/v8.expected/full_client_v8_V8_Win64___clang.json

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/0da17134e2f492e7593ca6e62b554125fb923df7

commit 0da17134e2f492e7593ca6e62b554125fb923df7
Author: machenbach <machenbach@chromium.org>
Date: Wed Apr 13 16:51:04 2016

[build] Port latest vs_toolchain script.

BUG= chromium:603011 , chromium:603131 
LOG=n

Review URL: https://codereview.chromium.org/1880383003

Cr-Commit-Position: refs/heads/master@{#35452}

[modify] https://crrev.com/0da17134e2f492e7593ca6e62b554125fb923df7/build/vs_toolchain.py

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/8f8dd7150f39f9067f4f7493a32931b296e6d9b6

commit 8f8dd7150f39f9067f4f7493a32931b296e6d9b6
Author: machenbach <machenbach@chromium.org>
Date: Thu Apr 14 07:58:21 2016

[build] New VS 2013 toolchain with setenv.*.json

Port https://codereview.chromium.org/1886493002

BUG= chromium:603011 ,  chromium:603131 
LOG=n
TBR=jochen@chromium.org

Review URL: https://codereview.chromium.org/1880423003

Cr-Commit-Position: refs/heads/master@{#35470}

[modify] https://crrev.com/8f8dd7150f39f9067f4f7493a32931b296e6d9b6/build/vs_toolchain.py

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/a1fa6d0be514ea3dbeac04de8652e3a13e671418

commit a1fa6d0be514ea3dbeac04de8652e3a13e671418
Author: machenbach <machenbach@chromium.org>
Date: Thu Apr 14 13:30:47 2016

[build] Port options to support win-clang

BUG= chromium:603011 
LOG=n
NOTRY=true

Review URL: https://codereview.chromium.org/1886293002

Cr-Commit-Position: refs/heads/master@{#35495}

[modify] https://crrev.com/a1fa6d0be514ea3dbeac04de8652e3a13e671418/build/standalone.gypi

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/f569b921bb3228ccd0dfb632bfdeb28b7f6b3704

commit f569b921bb3228ccd0dfb632bfdeb28b7f6b3704
Author: machenbach <machenbach@chromium.org>
Date: Fri Apr 15 12:14:13 2016

clang update.py: Make DIA backwards compatible

Fix after https://codereview.chromium.org/1879753002/ to
continue supporting MSVS 2013.

BUG= 603011 

Review URL: https://codereview.chromium.org/1888883004

Cr-Commit-Position: refs/heads/master@{#387580}

[modify] https://crrev.com/f569b921bb3228ccd0dfb632bfdeb28b7f6b3704/tools/clang/scripts/update.py

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/6ef4bd8aa72899ad73e4a84241f8e54ceb60c7ad

commit 6ef4bd8aa72899ad73e4a84241f8e54ceb60c7ad
Author: machenbach <machenbach@chromium.org>
Date: Fri Apr 15 13:56:34 2016

[build] Tweak configuration for win-clang

Unports parts of https://codereview.chromium.org/1828543003
as per suggestion in
https://codereview.chromium.org/1886293002/

Ports https://codereview.chromium.org/1532723003

Also restores -fmsc-version=1800 to support win-clang with
MSVS 2013.

BUG= chromium:603011 
LOG=n
NOTRY=true

Review URL: https://codereview.chromium.org/1895453002

Cr-Commit-Position: refs/heads/master@{#35535}

[add] https://crrev.com/6ef4bd8aa72899ad73e4a84241f8e54ceb60c7ad/build/set_clang_warning_flags.gypi
[modify] https://crrev.com/6ef4bd8aa72899ad73e4a84241f8e54ceb60c7ad/build/standalone.gypi

Greenified: https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20clang/builds/48

Nice! :-)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/tools/build.git/+/9e9468be3289732e13bcf8be6a2e9d1cc15f6ffb

commit 9e9468be3289732e13bcf8be6a2e9d1cc15f6ffb
Author: machenbach@chromium.org <machenbach@chromium.org>
Date: Mon Apr 18 06:50:51 2016

V8: Make win-clang a tree closer.

BUG= 603011 
TBR=kjellander@chromium.org, tandrii@chromium.org

Review URL: https://codereview.chromium.org/1894883002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/build@299977 0039d316-1c4b-4281-b951-d872f2087c98

[modify] https://crrev.com/9e9468be3289732e13bcf8be6a2e9d1cc15f6ffb/masters/master.client.v8/mail_notifier_cfg.py
[modify] https://crrev.com/9e9468be3289732e13bcf8be6a2e9d1cc15f6ffb/masters/master.client.v8/master.cfg
[modify] https://crrev.com/9e9468be3289732e13bcf8be6a2e9d1cc15f6ffb/scripts/slave/gatekeeper.json

What's left to do here and can CIT help?

This was done.