{"ast_node_type":"variable","tokens":[{"end":39,"kind":"keyword","start":0,"text":"let"}]}
        let id = self.r.next_node_id();
    fn resolve_elided_lifetime(&mut self, anchor_id: NodeId, span: Span) {
        let lt = Lifetime { id, ident: Ident::new(kw::UnderscoreLifetime, span) };