{"ast_node_type":"function","tokens":[{"end":95,"kind":"keyword","start":0,"text":"fn"}]}
    fn try_as_operand(&mut self, index: VnIndex, location: Location) -> Option<Operand<'tcx>> {
    /// returns that result as an [`Operand`].
        if let Some(const_) = self.try_as_constant(index) {