anchor.diff:  all() -> [
   	t_build_and_match_literals,
   	t_update_literals, t_match_and_update_literals,
  -	update_assoc,update_exact,
  +	t_update_assoc,t_update_exact,
   	t_guard_bifs, t_guard_sequence, t_guard_update,
   	t_guard_receive,t_guard_fun, t_list_comprehension,
   	t_map_sort_literals,
  
positive.code: -export([
  	t_build_and_match_literals/1,
  	t_update_literals/1,t_match_and_update_literals/1,
  	update_assoc/1,update_exact/1,
  	t_guard_bifs/1, t_guard_sequence/1, t_guard_update/1,
  	t_guard_receive/1, t_guard_fun/1,
  	t_list_comprehension/1,
  
negative.code: 
  t_erlang_hash(Config) when is_list(Config) ->
  
      ok = t_bif_erlang_phash2(),
      ok = t_bif_erlang_phash(),
      ok = t_bif_erlang_hash(),
  
      ok.
  
  t_bif_erlang_phash2() ->
  
      39679005  = erlang:phash2(#{}),
      106033788 = erlang:phash2(#{ a => 1, "a" => 2, <<"a">> => 3, {a,b} => 4 }),
      119861073 = erlang:phash2(#{ 1 => a, 2 => "a", 3 => <<"a">>, 4 => {a,b} }),
      87559846  = erlang:phash2(#{ 1 => a }),
      76038729  = erlang:phash2(#{ a => 1 }),
  
      79950245  = erlang:phash2(#{{} => <<>>}),
      11244490  = erlang:phash2(#{<<>> => {}}),
  
      M0 = #{ a => 1, "key" => <<"value">> },
      M1 = map:remove("key",M0),
      M2 = M1#{ "key" => <<"value">> },
  