anchor.diff:  
   %% Instrumented functions called as erlang:FUNCTION.
   -define(INSTR_ERLANG,
  -	[demonitor, halt, link, monitor, process_flag, register, send,
  -	 spawn, spawn_link, spawn_monitor, unlink, unregister, whereis,
  -	 yield]).
  +	[send, yield] ++ ?INSTR_ERLANG_NO_MOD).
   
   %% Delete and purge all modules in Files.
   -spec delete_and_purge([file()]) -> 'ok'.
  
positive.code:     case erl_syntax:type(Qualifier) of
  	atom ->
  	    Function = erl_syntax:atom_value(Qualifier),
  	    ArgTree = erl_syntax:application_arguments(Tree),
  	    case lists:member(Function, ?INSTR_ERLANG_NO_MOD) of
  		true -> {erlang, Function, ArgTree};
  		false -> no_instr
  	    end;
  	module_qualifier ->
  
negative.code: 		erl_syntax:type(FunTree) =:= atom of
  		true ->
  		    Module = erl_syntax:atom_value(ModTree),
  		    case Module of
  			erlang ->
                              Function = erl_syntax:atom_value(FunTree),
  			    case lists:member(Function, ?INSTR_ERLANG) of
  				true ->
  				    ArgTree =
  