anchor.diff:  	    _ -> As0 ++ [{Key, Val}]
   	  end,
       refac_syntax:set_ann(Tree, As1).
  +
  
positive.code: 	 new_variable_name/1, new_variable_name/2,
  	 new_variable_names/2, new_variable_names/3,
  	 strip_comments/1, to_comment/1, to_comment/2,
  	 to_comment/3, variables/1, vann_clause/4]).
  
  %% =====================================================================
  %% @spec map(Function, Tree::syntaxTree()) -> syntaxTree()
  
negative.code:     stop_env_process(),
      Tree1.
      
  
  var_annotate_clause(C, Env, Ms, VI) ->
      start_env_process(),
      {C1, _, _} = vann_clause(C, Env, Ms, VI),
      stop_env_process(),
      C1.
  
  %% =====================================================================
  %% @spec annotate_bindings(Tree::syntaxTree()) -> syntaxTree()
  