texmath-0.12.5: test/writer/tex/msqrt-04.test

<<< native
[ ESqrt
    (EArray
       [ AlignCenter ]
       [ [ [ EPhantom (EIdentifier "A") ] ]
       , [ [ EPhantom (EIdentifier "A") ] ]
       , [ [ EPhantom (EIdentifier "A") ] ]
       ])
]
>>> tex
\sqrt{\begin{matrix}
\phantom{A} \\
\phantom{A} \\
\phantom{A} \\
\end{matrix}}