texmath-0.12.5: test/writer/mml/mnAtoken7.test

<<< native
[ ENumber "5"
, ESymbol Bin "+"
, ENumber "31"
, ESymbol Bin "+"
, ENumber "0"
, ESymbol Bin "+"
, ENumber "14"
, ESymbol Bin "+"
, ENumber "123456789"
]
>>> mml
<?xml version='1.0' ?>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mn>5</mn>
    <mo>+</mo>
    <mn>31</mn>
    <mo>+</mo>
    <mn>0</mn>
    <mo>+</mo>
    <mn>14</mn>
    <mo>+</mo>
    <mn>123456789</mn>
  </mrow>
</math>