{"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"self.alloc_expr(Expr::Loop"}]}
                self.alloc_expr(Expr::Loop { body, label: label.map(|it| it.1) }, syntax_ptr)
                let body = self.collect_labelled_block_opt(label, e.loop_body());
            }