texmath-0.6.7: tests/readers/mml/msub-02.native
[EGrouped [ESub (EGrouped [EUnary "\\phantom" (EGrouped [EIdentifier "fail"]),EIdentifier "X"]) (ENumber "0"),ESymbol Op "=",ESub (EIdentifier "X") (ENumber "0")]]
[EGrouped [ESub (EGrouped [EUnary "\\phantom" (EGrouped [EIdentifier "fail"]),EIdentifier "X"]) (ENumber "0"),ESymbol Op "=",ESub (EIdentifier "X") (ENumber "0")]]