texmath-0.12.5: test/writer/eqn/msqrt-05.test

<<< native
[ ESqrt
    (EArray
       [ AlignCenter ]
       [ [ [ EPhantom (EIdentifier "ABCD") ] ]
       , [ [ EPhantom (EIdentifier "ABCD") ] ]
       , [ [ EPhantom (EIdentifier "ABCD") ] ]
       ])
]
>>> eqn
sqrt {matrix{
ccol{ {hphantom ABCD} above {hphantom ABCD} above {hphantom ABCD} }
}}