equalityExpressions.expression(x.eeq(y));
equalityExpressions.expression(x.nee(y));
JSBlock relationalExpressions = equalityExpressions.block();
relationalExpressions.expression(x.lt(y));
relationalExpressions.expression(x.gt(y));
relationalExpressions.expression(x.le(y));
relationalExpressions.expression(x.ge(y));
relationalExpressions.expression(x._instanceof(y));
relationalExpressions.expression(x.in(y));