Count needs to take a filter keyword or a filter struct/function as an arg

[elbow-jason]

As in this example:

{
  var(func: allofterms(name, "Taraji Henson")) {
    actor.film {
      F as performance.film {
        G as count(genre)
        genre {
          C as count(~genre @filter(uid(F)))
        }
      }
    }
  }

  Taraji_films_by_genre_count(func: uid(G), orderdesc: val(G)) {
    film_name : name@en
    genres : genre (orderdesc: val(C)) {
      genre_name : name@en
    }
  }
}'

[elbow-jason]

Fixed with fe1ee37