anchor.diff:  	t_guard_receive/1, t_guard_fun/1,
   	t_list_comprehension/1,
   	t_map_sort_literals/1,
  -	%t_size/1,
   	t_map_size/1,
  -
  +	t_build_and_match_aliasing/1,
  +
  +	%% variables
  +	t_build_and_match_variables/1,
  +	t_update_assoc_variables/1,t_update_exact_variables/1,
  +	t_nested_pattern_expressions/1,
  +	t_guard_update_variables/1,
  +	t_guard_sequence_variables/1,
  +	t_guard_sequence_mixed/1,
  +	t_frequency_table/1,
  +
  +	%% not covered in 17.0-rc1
  +	t_build_and_match_over_alloc/1,
  +	t_build_and_match_empty_val/1,
  +	t_build_and_match_val/1,
  +	t_build_and_match_nil/1,
  +	t_build_and_match_structure/1,
  +
  +	%% errors in 17.0-rc1
  +	t_update_values/1,
  +        t_expand_map_update/1,
  +        t_export/1,
  + 
   	%% Specific Map BIFs
   	t_bif_map_get/1,
   	t_bif_map_find/1,
  
positive.code:     ets:delete(Tid),
      ok.
  
  t_dets(_Config) ->
      ok.
  
  getmsg(_Tracer) ->
      receive V -> V after 100 -> timeout end.
  
  trace_collector(Msg,Parent) ->
      io:format("~p~n",[Msg]),
      Parent ! Msg,
      Parent.
  
  %% Use this function to avoid compile-time evaluation of an expression.
  id(I) -> I.
  
negative.code: 	%% maps module
  	t_maps_fold, t_maps_map,
  	t_maps_size, t_maps_without,
  
          %% Other functions
  	t_pdict,
  