(* TEST

flags = "-w A"

* setup-ocamlc.byte-build-env
** ocamlc.byte
compile_only = "true"
*** check-ocamlc.byte-output

*)

module T1 = struct
  type t = A
  type s = X
end

module T2 = struct
  type t = T1.t = A
  type s = X
end

module T3 = struct
  open T1 (* unused open *)
  open T2 (* shadow X, which is later used; but not A, see #6762 *)

  let _ = (A, X) (* X belongs to several types *)
end