texmath-0.12.5: test/writer/eqn/stretchVertNest2.test

<<< native
[ EDelimited
    "("
    ")"
    [ Right
        (EDelimited
           "("
           ")"
           [ Right (EFraction NormalFrac (EIdentifier "x") (EIdentifier "y"))
           ])
    ]
]
>>> eqn
left ( left ( x over y right ) right )