Hi all,

I just upgraded to `6.0` and `TypeError: Insufficient number of arguments.`
shell/browser/api/atom_api_app.cc
JumpListItem::Type val) {
    std::string item_type;
    switch (val) {
      case JumpListItem::Type::TASK:
        item_type = "task";
        break;
      case JumpListItem::Type::SEPARATOR:
        item_type = "separator";
        break;
      case JumpListItem::Type::FILE:
        item_type = "file";
        break;
    }
    return mate::ConvertToV8(isolate, item_type);
  }
};
template <>
struct Converter<JumpListItem> {
  static bool FromV8(v8::Isolate* isolate,