[clang-tidy ObjC] [1/3] New module `objc` for Objective-C checks

Summary:
This is part 1 of 3 of a series of changes to improve Objective-C
linting in clang-tidy.

This introduces a new clang-tidy module, `objc`, specifically for
Objective-C / Objective-C++ checks.

The module is currently empty; D39142 adds the first check.

Test Plan: `ninja check-clang-tools`

Patch by Ben Hamilton!

Reviewers: hokein, alexfh

Reviewed By: hokein

Subscribers: Wizard, mgorny

Differential Revision: https://reviews.llvm.org/D39188

llvm-svn: 316643

1 files changed, 21 insertions, 0 deletions

diff --git a/clang-tools-extra/unittests/clang-tidy/ObjCModuleTest.cpp b/clang-tools-extra/unittests/clang-tidy/ObjCModuleTest.cpp
new file mode 100644
index 0000000..c50480a
--- /dev/null
+++ b/clang-tools-extra/unittests/clang-tidy/ObjCModuleTest.cpp
@@ -0,0 +1,21 @@
+//===---- ObjCModuleTest.cpp - clang-tidy ---------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ClangTidyTest.h"
+#include "gtest/gtest.h"
+
+namespace clang {
+namespace tidy {
+namespace test {
+
+// TODO(D39142) Add unit tests for the ObjC module here once a check lands.
+
+} // namespace test
+} // namespace tidy
+} // namespace clang