texmath-0.12.5: test/roundtrip/msqrt-08.native

[ ESqrt (EIdentifier "content")
, ESymbol Rel "="
, ESqrt
    (ESub (EIdentifier "content") (EPhantom (EIdentifier "fail")))
, ESymbol Rel "="
, ESqrt
    (ESuper (EIdentifier "content") (EPhantom (EIdentifier "fail")))
]