Support and test template arguments for unions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178586 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/IR/DIBuilder.cpp b/lib/IR/DIBuilder.cpp
index 7890b7f..9d6e840 100644
--- a/lib/IR/DIBuilder.cpp
+++ b/lib/IR/DIBuilder.cpp
@@ -568,7 +568,8 @@
     NULL,
     Elements,
     ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
-    Constant::getNullValue(Type::getInt32Ty(VMContext))
+    Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    NULL
   };
   return DICompositeType(MDNode::get(VMContext, Elts));
 }