rename isReferenceType to follow the new scheme.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40640 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Sema/SemaType.cpp b/Sema/SemaType.cpp
index d700023..7085d83 100644
--- a/Sema/SemaType.cpp
+++ b/Sema/SemaType.cpp
@@ -136,7 +136,7 @@
       T = Context.getPointerType(T).getQualifiedType(DeclType.Ptr.TypeQuals);
       break;
     case DeclaratorChunk::Reference:
-      if (const ReferenceType *RT = T->isReferenceType()) {
+      if (const ReferenceType *RT = T->getAsReferenceType()) {
         // C++ 8.3.2p4: There shall be no references to references ...
         Diag(D.getIdentifierLoc(),
              diag::err_illegal_decl_reference_to_reference,
@@ -166,7 +166,7 @@
         Diag(D.getIdentifierLoc(), diag::err_illegal_decl_array_of_functions,
              D.getIdentifier()->getName());
         T = Context.getPointerType(T);
-      } else if (const ReferenceType *RT = T->isReferenceType()) {
+      } else if (const ReferenceType *RT = T->getAsReferenceType()) {
         // C++ 8.3.2p4: There shall be no ... arrays of references ...
         Diag(D.getIdentifierLoc(), diag::err_illegal_decl_array_of_references,
              D.getIdentifier()->getName());