firm_unknown_type = new_type(tpop_unknown, mode_ANY, new_id_from_str("type_unknown"), builtin_db);
set_type_size_bytes(firm_unknown_type, 0);
set_type_state (firm_unknown_type, layout_fixed);
firm_unknown_type = new_type(tpop_unknown, mode_ANY, new_id_from_str("type_unknown"), builtin_db);
set_type_size_bytes(firm_unknown_type, 0);
set_type_state (firm_unknown_type, layout_fixed);