texmath-0.6.7: tests/readers/mml/msup-02.native
[EGrouped [ESuper (EGrouped [EUnary "\\phantom" (EGrouped [EIdentifier "fail"]),EText TextNormal "k"]) (ENumber "2"),ESymbol Op "=",ESuper (EText TextNormal "k") (ENumber "2")]]
[EGrouped [ESuper (EGrouped [EUnary "\\phantom" (EGrouped [EIdentifier "fail"]),EText TextNormal "k"]) (ENumber "2"),ESymbol Op "=",ESuper (EText TextNormal "k") (ENumber "2")]]