jit: fix build after r233218 (build_common_tree_nodes)

gcc/jit/ChangeLog:
	* dummy-frontend.c (jit_langhook_init): Remove
	second argument to build_common_tree_nodes to
	track r233218.

From-SVN: r233222

gcc/jit/ChangeLog

+2016-02-08  David Malcolm  <dmalcolm@redhat.com>
+
+	* dummy-frontend.c (jit_langhook_init): Remove
+	second argument to build_common_tree_nodes to
+	track r233218.
+
 2016-01-23  Iain Buclaw  <ibuclaw@gdcproject.org>
 
 	* jit-playback.c: Include pthread.h.

gcc/jit/dummy-frontend.c

@@ -105,7 +105,7 @@ jit_langhook_init (void)
       registered_root_tab = true;
     }
 
-  build_common_tree_nodes (false, false);
+  build_common_tree_nodes (false);
 
   /* I don't know why this has to be done explicitly.  */
   void_list_node = build_tree_list (NULL_TREE, void_type_node);