{"ast_node_type":"variable","tokens":[{"end":34,"kind":"keyword","start":0,"text":"let"}]}
        let span = param.pat.span;
    pub(super) fn recover_bad_self_param(&mut self, mut param: Param) -> PResult<'a, Param> {
        let guar = self.dcx().emit_err(SelfParamNotFirst { span });