{"ast_node_type":"variable","tokens":[{"end":55,"kind":"keyword","start":0,"text":"let"}]}
                    let scope = this.push_drop_scope();
                self.lower_loop(current, place, *label, expr_id.into(), |this, begin| {
                    if let Some((_, mut current)) = this.lower_expr_as_place(begin, *body, true)? {