Add an CXXBindReferenceExpr (not used just yet).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94791 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/StmtPrinter.cpp b/lib/AST/StmtPrinter.cpp
index bbb904d..3ae306d 100644
--- a/lib/AST/StmtPrinter.cpp
+++ b/lib/AST/StmtPrinter.cpp
@@ -1038,6 +1038,10 @@
   PrintExpr(Node->getSubExpr());
 }
 
+void StmtPrinter::VisitCXXBindReferenceExpr(CXXBindReferenceExpr *Node) {
+  PrintExpr(Node->getSubExpr());
+}
+
 void StmtPrinter::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *Node) {
   OS << Node->getType().getAsString();
   OS << "(";