{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"CandidateSource::Impl(def_id)"}]}
                    CandidateSource::Impl(def_id) => {
                    CandidateSource::Trait(def_id) => def_id != info.def_id,
                        self.tcx.trait_id_of_impl(def_id) != Some(info.def_id)