anchor.diff:  %% @see parentheses/1
   
   parentheses_body(Node) -> data(Node).
  +
  +fake_parentheses_body(Node) -> data(Node).
   
   %% =====================================================================
   %% @spec macro(Name) -> syntaxTree()
  
positive.code: 		revert_nil(Node);
  	     parentheses -> 
  		revert_parentheses(Node);
  	     prefix_expr -> 
  		revert_prefix_expr(Node);
  	     qualified_name -> 
  
negative.code: make_tree(match_expr, [[P], [E]]) -> match_expr(P, E);
  make_tree(module_qualifier, [[M], [N]]) ->
      module_qualifier(M, N);
  make_tree(fake_parentheses, [[E]]) -> fake_parentheses(E);
  make_tree(parentheses, [[E]]) -> parentheses(E);
  make_tree(prefix_expr, [[F], [A]]) -> prefix_expr(F, A);
  make_tree(qualified_name, [S]) -> qualified_name(S);
  