anchor.diff:      {ok, L} = Res,
       F = fun(E, Acc) ->
   		case E of
  -		    {local,_,_} -> Acc;
  +		    {local, _Fun , _Arity} -> Acc;
  +		    {local_su_se, _Fun, _Arity} -> Acc;
   		    _ -> [E | Acc]
   		end
   	end,
  
positive.code:     {ok, L} = Res,
      F = fun(E, Acc) ->
  		case E of
  		    {_, {local,_,_}} -> Acc;
  		    _ -> [E | Acc]
  		end
  	end,
  
negative.code:     %% start new "empty" xref process
      xref:start(Xref, {xref_mode, functions}),
  
      %% add path to OTP modules - they should not be detected as unknown modules
      OTP = code:get_path(),
      xref:set_library_path(Xref, OTP, [{verbose, true}]),
  
  