diff -r 3f70c03e8282 -r 30d5dd2f30b6 src/Tools/Code/code_scala.ML
--- a/src/Tools/Code/code_scala.ML	Wed Sep 01 17:14:42 2010 +0200
+++ b/src/Tools/Code/code_scala.ML	Wed Sep 01 17:21:50 2010 +0200
@@ -317,10 +317,10 @@
         val implicits = filter (is_classinst o Graph.get_node program)
           (Graph.imm_succs program name);
       in union (op =) implicits end;
-    fun modify_stmt (Code_Thingol.Datatypecons _) = NONE
-      | modify_stmt (Code_Thingol.Classrel _) = NONE
-      | modify_stmt (Code_Thingol.Classparam _) = NONE
-      | modify_stmt stmt = SOME stmt;
+    fun modify_stmt (_, Code_Thingol.Datatypecons _) = NONE
+      | modify_stmt (_, Code_Thingol.Classrel _) = NONE
+      | modify_stmt (_, Code_Thingol.Classparam _) = NONE
+      | modify_stmt (_, stmt) = SOME stmt;
   in
     Code_Namespace.hierarchical_program labelled_name { module_alias = module_alias, reserved = reserved,
       empty_nsp = ((reserved, reserved), reserved), namify_module = namify_module, namify_stmt = namify_stmt,