{"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"CandidateSource::Trait(id)"}]}
            CandidateSource::Trait(id) => (0, self.tcx.def_path_str(id)),
        sources.sort_by_key(|source| match source {
            CandidateSource::Impl(id) => (1, self.tcx.def_path_str(id)),