semantic/test/fixtures/javascript/anonymous-function.diff+A.txt

{+(Program
  (ExpressionStatements
    (Function
      (Params
        (Other "required_parameter"
          (Identifier))
        (Other "required_parameter"
          (Identifier)))
      (Return
        (MathOperator
          (Identifier)
          (Other "+")
          (Identifier))))))+}