[Vim/YCM] Identify ObjC and ObjC++ headers.

[Vim/YCM] Identify ObjC and ObjC++ headers.

Objective-C and Objective-C++ headers were all being treated as plain
C++ files (with lots of syntax errors). This change adds .m and .mm to
the list of extensions that our YCM config looks for to guess a header's
language, and refactors the search to use Ninja instead of looking for
files on disk.

It also adds more tests for Obj-C{,++}.

BUG=

Committed: https://crrev.com/d6a698265e842542c84ac10e7cdd07f356575194
Cr-Commit-Position: refs/heads/master@{#430351}

[Sidney San Martín, 2016-11-03 23:06:11]

The CQ bit was checked by sdy@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-03 23:07:25]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Sidney San Martín, 2016-11-03 23:10:13]

The CQ bit was unchecked by sdy@chromium.org

[Sidney San Martín, 2016-11-03 23:10:32]

The CQ bit was checked by sdy@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-03 23:11:15]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Sidney San Martín, 2016-11-03 23:11:23]

sdy@chromium.org changed reviewers:
+ asanka@chromium.org

[Sidney San Martín, 2016-11-03 23:11:23]

More ObjC fixes. Thanks in advance!

[commit-bot: I haz the power, 2016-11-03 23:39:09]

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

[commit-bot: I haz the power, 2016-11-03 23:39:10]

Dry run: This issue passed the CQ dry run.

[asanka, 2016-11-07 15:19:51]

LGTM. Thanks!

[Sidney San Martín, 2016-11-07 19:35:32]

The CQ bit was checked by sdy@chromium.org

[commit-bot: I haz the power, 2016-11-07 19:36:16]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-07 19:53:18]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-11-07 20:05:02]

Description was changed from

==========
[Vim/YCM] Identify ObjC and ObjC++ headers.

Objective-C and Objective-C++ headers were all being treated as plain
C++ files (with lots of syntax errors). This change adds .m and .mm to
the list of extensions that our YCM config looks for to guess a header's
language, and refactors the search to use Ninja instead of looking for
files on disk.

It also adds more tests for Obj-C{,++}.

BUG=
==========

to

==========
[Vim/YCM] Identify ObjC and ObjC++ headers.

Objective-C and Objective-C++ headers were all being treated as plain
C++ files (with lots of syntax errors). This change adds .m and .mm to
the list of extensions that our YCM config looks for to guess a header's
language, and refactors the search to use Ninja instead of looking for
files on disk.

It also adds more tests for Obj-C{,++}.

BUG=

Committed: https://crrev.com/d6a698265e842542c84ac10e7cdd07f356575194
Cr-Commit-Position: refs/heads/master@{#430351}
==========

[commit-bot: I haz the power, 2016-11-07 20:05:03]

Patchset 2 (id:??) landed as
https://crrev.com/d6a698265e842542c84ac10e7cdd07f356575194
Cr-Commit-Position: refs/heads/master@{#430351}