texmath-0.12.5: test/reader/mml/msupBnest1.test

<<< mml
<?xml version="1.0" encoding="UTF-8"?>

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mi>x</mi> 
    <mo>+</mo> 
    <msup>
      <mrow>
        <mi>y</mi> 
      </mrow> 
      <mrow>
        <mi>n</mi> 
      </mrow> 
    </msup> 
  </mrow> </math>
>>> native
[ EIdentifier "x"
, ESymbol Bin "+"
, ESuper (EIdentifier "y") (EIdentifier "n")
]