anchor.diff:  
   %% =====================================================================
   %% @spec pos_to_var_name(Node::syntaxTree(), Pos::{integer(), integer()})->
  -%%                      {ok, {VarName,DefPos, Category}} | {error, none}
  +%%                      {ok, {VarName,DefPos, Category}} | {error, string()}
   %%
   %%      VarName = atom()
   %%      DefPos = [{integer(), integer()}]
  
positive.code: 
  %% ==========================================================================
  %% @spec pos_to_fun_name(Node::syntaxTree(), Pos::{integer(), integer()}) ->
  %%                        {ok, {Mod, Fun, Arity, OccurPos, DefPos}} | {error, none}
  %%    Mod = atom()
  %%    Fun = atom()
  %%    Arity = integer()
  
negative.code: get_var_exports(Node) ->
      get_var_exports_1(refac_syntax:get_ann(Node)).
  
  get_var_exports_1([{bound, B} | _Bs]) -> B; %% Think about this again!!
  get_var_exports_1([_ | Bs]) -> get_var_exports_1(Bs);
  get_var_exports_1([]) -> [].
  
  