[AST] ArrayRefize template argument packs. No functionality change intended.

llvm-svn: 244026
diff --git a/clang/lib/AST/DeclTemplate.cpp b/clang/lib/AST/DeclTemplate.cpp
index cde497b..3da45e5 100644
--- a/clang/lib/AST/DeclTemplate.cpp
+++ b/clang/lib/AST/DeclTemplate.cpp
@@ -240,8 +240,8 @@
     }
     
     if ((*Param)->isTemplateParameterPack())
-      Arg = TemplateArgument::CreatePackCopy(Context, &Arg, 1);
-    
+      Arg = TemplateArgument::CreatePackCopy(Context, Arg);
+
     *Args++ = Arg;
   }
 }