javascript:S3403 does not recognize derived classes with double inheritance and type annotations

[vincesp (Vincent Spallek)]

@victor.diez

class Folder extends Container {
  /**
   * @type {'f'|'d'|'g'|'l'}
   */
  type = 'd'
}

I fixed it by setting the type to

  /**
   * @type {'d'}
   */

Which makes it even more explicit that for a folder, the type is always 'd'.