Reland Make clang the default on linux.

Reland Make clang the default on linux.

BUG=

Committed: https://crrev.com/72ef6843b0aff68e519a8f26e7d2f7dd87b4712c
Cr-Commit-Position: refs/heads/master@{#26204}

[Michael Achenbach, 2015-01-21 15:23:53]

machenbach@chromium.org changed reviewers:
+ jkummerow@chromium.org, jochen@chromium.org

[Michael Achenbach, 2015-01-21 15:23:53]

PTAL - will make sure the linux32 builder is a 64 bit bot before landing...

[jochen (gone - plz use gerrit), 2015-01-21 15:26:08]

https://codereview.chromium.org/861223002/diff/1/build/standalone.gypi
File build/standalone.gypi (right):

https://codereview.chromium.org/861223002/diff/1/build/standalone.gypi#newcod...
build/standalone.gypi:124: (v8_target_arch!="arm" or target_arch!="arm") and \
target_arch should be enough. If you cross compile and use the simulator, using
clang is ok.

[Michael Achenbach, 2015-01-21 15:30:34]

Done

[Michael Achenbach, 2015-01-21 15:31:39]

Maybe I invert the logic to allow only x64 and ia32...

[jochen (gone - plz use gerrit), 2015-01-21 15:35:32]

On 2015/01/21 at 15:31:39, machenbach wrote:
> Maybe I invert the logic to allow only x64 and ia32...

yeah, and group the OS checks, something like (linux or mac) and (intel arch)

[Michael Achenbach, 2015-01-21 16:07:47]

Done

[jochen (gone - plz use gerrit), 2015-01-21 16:14:00]

lgtm

[Michael Achenbach, 2015-01-21 19:00:52]

The CQ bit was checked by machenbach@chromium.org

[commit-bot: I haz the power, 2015-01-21 19:01:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/861223002/40001

[commit-bot: I haz the power, 2015-01-21 19:32:10]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-01-21 19:32:21]

Patchset 3 (id:??) landed as
https://crrev.com/72ef6843b0aff68e519a8f26e7d2f7dd87b4712c
Cr-Commit-Position: refs/heads/master@{#26204}

[Michael Achenbach, 2015-01-21 20:37:08]

A revert of this CL (patchset #3 id:40001) has been created in
https://codereview.chromium.org/864093004/ by machenbach@chromium.org.

The reason for reverting is: Still missing these builders:
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm%20-%20sim
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm%20-%20sim...
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20full%20debug
.