{"ast_node_type":"variable","tokens":[{"end":57,"kind":"keyword","start":0,"text":"let"}]}
        let ident = Ident::new(kw::SelfLower, self_span);
    fn self_value_is_available(&mut self, self_span: Span) -> bool {
        let binding = self.maybe_resolve_ident_in_lexical_scope(ident, ValueNS);