anchor.diff:      [types, t_list_to_existing_atom, os_env, otp_7526,
        display,
        atom_to_binary, binary_to_atom, binary_to_existing_atom,
  -     min_max].
  +     min_max, erlang_halt].
   
   groups() -> 
       [].
  
positive.code: 
      ok.
  
  %% Helpers
      
  id(I) -> I.
  
  
negative.code: %%
  %% %CopyrightBegin%
  %%
  %% Copyright Ericsson AB 2005-2012. All Rights Reserved.
  %%
  %% The contents of this file are subject to the Erlang Public License,
  %% Version 1.1, (the "License"); you may not use this file except in
  