(* TEST
flags = " -w a "
ocamlc_byte_exit_status = "2"
* setup-ocamlc.byte-build-env
** ocamlc.byte
*** check-ocamlc.byte-output
*)

(* Bad (not regular) *)
module rec A : sig type 'a t = <m: 'a list B.t; n: 'a array B.t> end
             = struct type 'a t = <m: 'a list B.t; n: 'a array B.t> end
       and B : sig type 'a t = 'a A.t end = struct type 'a t = 'a A.t end;;