texmath-0.12.5: test/writer/mml/mi3.test

<<< native
[ EIdentifier "x"
, EOver False (ESymbol Accent "\8594") (EText TextNormal "maps to")
, EIdentifier "y"
]
>>> mml
<?xml version='1.0' ?>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mi>x</mi>
    <mover>
      <mo>→</mo>
      <mtext mathvariant="normal">maps to</mtext>
    </mover>
    <mi>y</mi>
  </mrow>
</math>