{"ast_node_type":"variable","tokens":[{"end":62,"kind":"keyword","start":0,"text":"let"}]}
                        let dist = val.to_target_isize(self)?;
                        // seems *positive* or equal to isize::MIN, they were more than isize::MAX apart.
                        if dist >= 0 || i128::from(dist) == self.pointer_size().signed_int_min() {