{"ast_node_type":"variable","tokens":[{"end":62,"kind":"keyword","start":0,"text":"let"}]}
                let ty = self.expr_ty_without_adjust(expr_id);
            if let Expr::Literal(l) = &self.body.exprs[expr_id] {
                return Ok(Some((self.lower_literal_to_operand(ty, l)?, current)));