texmath-0.13.1.2: test/writer/tex/msub-11.test

<<< native
[ ESub (EIdentifier "H") (ESymbol Ord "2")
, ESymbol Rel "="
, EOver
    False
    (ESub (EIdentifier "H") (ESymbol Ord "2"))
    (EPhantom (EIdentifier "x"))
]
>>> tex
H_{2} = \overset{\phantom{x}}{H_{2}}