anchor.diff:  
   
   %% =====================================================================
  -%% @spec operator_literal(syntaxTree()) -> string()
  -%%
   %% @doc Returns the literal string represented by an
   %% <code>operator</code> node. This is simply the operator name as a
   %% string.
  
positive.code: 
  
  %% =====================================================================
  %% @spec function_name(syntaxTree()) -> syntaxTree()
  %%
  %% @doc Returns the name subtree of a <code>function</code> node.
  %%
  %% @see function/2
  
negative.code: 
  
  %% =====================================================================
  %% @doc Clears the associated comments of <code>Node</code>.
  %%
  %% <p>Note: This is equivalent to
  