anchor.diff:  groups() ->
       [{p,[parallel],
         [beam_validator,
  -       trunc_and_friends
  +       trunc_and_friends,
  +       cover_safe_bifs
         ]}].
   
   init_per_suite(Config) ->
  
positive.code: 
  -export([all/0,suite/0,groups/0,init_per_suite/1,end_per_suite/1,
  	 init_per_group/2,end_per_group/2,
  	 beam_validator/1,trunc_and_friends/1]).
  
  suite() ->
      [{ct_hooks,[ts_install_cth]}].
  
negative.code:         try begin _@Bif@(a), ok end
          catch error:badarg -> ok end,
          ok.").
  
  cover_safe_bifs(Config) ->
      _ = get(),
      _ = get_keys(a),
      _ = group_leader(),
      _ = is_alive(),
      _ = min(Config, []),
      _ = nodes(),
      _ = erlang:ports(),
      _ = pre_loaded(),
      _ = processes(),
      _ = registered(),
      _ = term_to_binary(Config),
  
      ok.
  