anchor.diff:       bif_clash, behaviour_basic, behaviour_multiple, otp_11861,
        otp_7550, otp_8051, format_warn, {group, on_load},
        too_many_arguments, basic_errors, bin_syntax_errors, predef,
  -     maps, maps_type, otp_11851, otp_11879, otp_13230,
  +     maps, maps_type, maps_parallel_match,
  +     otp_11851, otp_11879, otp_13230,
        record_errors].
   
   groups() -> 
  
positive.code:          too_many_arguments/1,
           basic_errors/1,bin_syntax_errors/1,
           predef/1,
           maps/1,maps_type/1,otp_11851/1,otp_11879/1,otp_13230/1,
           record_errors/1]).
  
  suite() ->
  
negative.code:     ok.
  
  maps(Config) ->
      Ts = [{illegal_map_construction,
             <<"t() ->
                    #{ a := b,
  