anchor.diff:  		if File1 /= File2 ->
   		       file:delete(File1),
   		       file:write_file(File2,
  -				       list_to_binary(refac_prettypr:print_ast(AST)));  
  +				       list_to_binary(refac_prettypr:print_ast(AST)));    
   		   true -> file:write_file(File2, list_to_binary(refac_prettypr:print_ast(AST)))
   		end
   	end,
  
positive.code: 	  Lc = glast("refac_util:do_add_range,case_expr", refac_syntax:case_expr_clauses(Node)),
  	  {S1, _E1} = get_range(A),
  	  {_S2, E2} = get_range(Lc),
  	  S11 = extend_forwards(Toks, S1, 'case'),
  	  E21 = extend_backwards(Toks, E2, 'end'),
  	  refac_syntax:add_ann({range, {S11, E21}}, Node);
  
negative.code: 	 is_exported/2, inscope_funs/1,
           once_tdTU/3, stop_tdTP/3, full_buTP/3,
           pos_to_fun_name/2, pos_to_fun_def/2,pos_to_var_name/2,
           pos_to_expr/3, expr_to_fun/2,get_range/1, get_var_exports/1, 
  	 get_env_vars/1, get_bound_vars/1, get_free_vars/1, 
           get_client_files/2, expand_files/2, get_modules_by_file/1,
           reset_attrs/1, update_ann/2,
           parse_annotate_file/3,tokenize/1, write_refactored_files/1,
  