texmath-0.12.5: test/writer/mml/badAttribs2.test

<<< native
[ ESuper (ENumber "2") (ENumber "5")
, ESymbol Bin "+"
, EIdentifier "x"
]
>>> mml
<?xml version='1.0' ?>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <msup>
      <mn>2</mn>
      <mn>5</mn>
    </msup>
    <mo>+</mo>
    <mi>x</mi>
  </mrow>
</math>