fix thinko in last change

From-SVN: r37520

gcc/cp/pt.c

@@ -7152,7 +7152,7 @@ tsubst_expr (t, args, complain, in_decl)
 	      {
                 if (TREE_CODE (decl) != TYPE_DECL)
                   /* Make sure the type is instantiated now. */
-                  complete_type (type);
+                  complete_type (TREE_TYPE (decl));
 	        if (init)
 	          DECL_INITIAL (decl) = error_mark_node;
 	        /* By marking the declaration as instantiated, we avoid