texmath-0.12.5: test/writer/eqn/munder-08.test

<<< native
[ EUnder
    False (EIdentifier "_ baseline _") (EIdentifier "under script")
, ESymbol Rel "="
, EUnder
    False
    (EOver
       False (EIdentifier "_ baseline _") (EPhantom (EIdentifier "fail")))
    (EIdentifier "under script")
]
>>> eqn
{_ baseline _} from {under script} = {{_ baseline _} to {hphantom fail}} from {under script}