Disable clang-tidy misc checkers when not compiling in C++ mode. Many of the checkers do not require additional testing as the tests will not compile for other languages or modes, or the checkers would never match a valid construct.

llvm-svn: 246318
diff --git a/clang-tools-extra/clang-tidy/misc/NoexceptMoveConstructorCheck.cpp b/clang-tools-extra/clang-tidy/misc/NoexceptMoveConstructorCheck.cpp
index 7bc7835..155baf8 100644
--- a/clang-tools-extra/clang-tidy/misc/NoexceptMoveConstructorCheck.cpp
+++ b/clang-tools-extra/clang-tidy/misc/NoexceptMoveConstructorCheck.cpp
@@ -17,11 +17,15 @@
 namespace tidy {
 
 void NoexceptMoveConstructorCheck::registerMatchers(MatchFinder *Finder) {
-  Finder->addMatcher(
-      methodDecl(anyOf(constructorDecl(), hasOverloadedOperatorName("=")),
-                 unless(isImplicit()), unless(isDeleted()))
-          .bind("decl"),
-      this);
+  // Only register the matchers for C++11; the functionality currently does not
+  // provide any benefit to other languages, despite being benign.
+  if (getLangOpts().CPlusPlus11) {
+    Finder->addMatcher(
+        methodDecl(anyOf(constructorDecl(), hasOverloadedOperatorName("=")),
+                   unless(isImplicit()), unless(isDeleted()))
+            .bind("decl"),
+        this);
+  }
 }
 
 void NoexceptMoveConstructorCheck::check(