texmath-0.12.5: test/writer/tex/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")
]
>>> tex
\underset{under\ script}{\_\ baseline\ \_} = \underset{under\ script}{\overset{\phantom{fail}}{\_\ baseline\ \_}}