[libclang] Introduce clang_Type_getCXXRefQualifier whichexposes ref-qualifier information of function type.

Patch by Che-Liang Chiou!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192493 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/c-index-test/c-index-test.c b/tools/c-index-test/c-index-test.c
index 2e8b58b..90a6528 100644
--- a/tools/c-index-test/c-index-test.c
+++ b/tools/c-index-test/c-index-test.c
@@ -1160,6 +1160,7 @@
                                          CXClientData d) {
   if (!clang_isInvalid(clang_getCursorKind(cursor))) {
     CXType T = clang_getCursorType(cursor);
+    enum CXRefQualifierKind RQ = clang_Type_getCXXRefQualifier(T);
     PrintCursor(cursor, NULL);
     PrintTypeAndTypeKind(T, " [type=%s] [typekind=%s]");
     if (clang_isConstQualifiedType(T))
@@ -1168,6 +1169,10 @@
       printf(" volatile");
     if (clang_isRestrictQualifiedType(T))
       printf(" restrict");
+    if (RQ == CXRefQualifier_LValue)
+      printf(" lvalue-ref-qualifier");
+    if (RQ == CXRefQualifier_RValue)
+      printf(" rvalue-ref-qualifier");
     /* Print the canonical type if it is different. */
     {
       CXType CT = clang_getCanonicalType(T);