texmath-0.12.5: test/roundtrip/mtable-09.native

[ EArray
    [ AlignCenter , AlignCenter , AlignCenter ]
    [ [ [ EGrouped
            [ EPhantom (EText TextNormal "fail")
            , EUnder
                False (EIdentifier "HT") (EPhantom (EText TextNormal "fail"))
            ]
        ]
      , [ ESymbol Rel "=" ]
      , [ EGrouped
            [ EOver
                False (EIdentifier "TH") (EPhantom (EText TextNormal "fail"))
            , EPhantom (EText TextNormal "fail")
            ]
        ]
      ]
    ]
]