Fix "using typename" and the instantiation of non-dependent using declarations.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90614 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/Mangle.cpp b/lib/CodeGen/Mangle.cpp
index 4d021e8..df708ed 100644
--- a/lib/CodeGen/Mangle.cpp
+++ b/lib/CodeGen/Mangle.cpp
@@ -843,6 +843,12 @@
 
 // <type>            ::= <class-enum-type>
 // <class-enum-type> ::= <name>
+void CXXNameMangler::mangleType(const UnresolvedUsingType *T) {
+  mangleName(T->getDecl());
+}
+
+// <type>            ::= <class-enum-type>
+// <class-enum-type> ::= <name>
 void CXXNameMangler::mangleType(const EnumType *T) {
   mangleType(static_cast<const TagType*>(T));
 }