message: Change default direction of function argument to vpiInput
diff: @@ -1041,7 +1041,7 @@ std::vector<io_decl*>* CompileHelper::compileTfPortList(
  variables* previous_var = nullptr;
  if (tf_port_list && (fC->Type(tf_port_list) == VObjectType::slTf_port_list)) {
  NodeId tf_port_item = fC->Child(tf_port_list);
  - int previousDirection = vpiNoDirection;
  + int previousDirection = vpiInput;
  while (tf_port_item) {
  io_decl* decl = s.MakeIo_decl();
  ios->push_back(decl);
  