{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"self.psess.gated_spans.gate(sym::auto_traits,"}]}
            self.psess.gated_spans.gate(sym::auto_traits, self.prev_token.span);
        let is_auto = if self.eat_keyword(exp!(Auto)) {
            IsAuto::Yes