texmath-0.7: tests/readers/mml/embStretch1.native
[ESuper (EDelimited "(" ")" [Right (EFraction NormalFrac (ENumber "2") (EIdentifier "x"))]) (ESymbol Bin "-")]
[ESuper (EDelimited "(" ")" [Right (EFraction NormalFrac (ENumber "2") (EIdentifier "x"))]) (ESymbol Bin "-")]