anchor.diff:  %% If called without a `noparent' argument, "register" the first process.
   %% Return the LID of the newly "registered" process.
   -spec new(pid(), lid() | 'noparent') -> lid().
  +
   new(Pid, Parent) ->
       Lid =
   	case Parent of
  
positive.code: 
  %% Information kept in the NT_LID table
  %%
  %% lid      : The process' LID.
  %% pid      : The process' pid.
  %% nch      : The number of processes spawned by this process.
  -record(info, {lid :: lid(),
  	       pid :: pid(),
  	       nch :: non_neg_integer()}).
  
  %% Record element positions, only to be used by ets:update_element.
  -define(POS_LID, 2).
  -define(POS_PID, 3).
  -define(POS_NCH, 4).
  
negative.code:     end;
  from_pid(_Other) -> not_found.
  
  %% Fold function Fun over all known processes (by Pid).
  -spec fold_pids(fun(), term()) -> term().
  
  fold_pids(Fun, InitAcc) ->
  