Adding a hasLocalQualifiers() AST Matcher.

Updated tests and docs.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178556 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/unittests/ASTMatchers/ASTMatchersTest.cpp b/unittests/ASTMatchers/ASTMatchersTest.cpp
index 14824d0..301b4f7 100644
--- a/unittests/ASTMatchers/ASTMatchersTest.cpp
+++ b/unittests/ASTMatchers/ASTMatchersTest.cpp
@@ -1356,6 +1356,17 @@
               varDecl(hasType(qualType(hasCanonicalType(referenceType()))))));
 }
 
+TEST(QualType, hasLocalQualifiers) {
+  EXPECT_TRUE(notMatches("typedef const int const_int; const_int i = 1;",
+                         varDecl(hasType(hasLocalQualifiers()))));
+  EXPECT_TRUE(matches("int *const j = nullptr;",
+                      varDecl(hasType(hasLocalQualifiers()))));
+  EXPECT_TRUE(matches("int *volatile k;",
+                      varDecl(hasType(hasLocalQualifiers()))));
+  EXPECT_TRUE(notMatches("int m;",
+                         varDecl(hasType(hasLocalQualifiers()))));
+}
+
 TEST(HasParameter, CallsInnerMatcher) {
   EXPECT_TRUE(matches("class X { void x(int) {} };",
       methodDecl(hasParameter(0, varDecl()))));