{"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"CandidateSource::Trait(id)"}]}
                    CandidateSource::Trait(id) => id,
                .map(|source| match source {
                    CandidateSource::Impl(impl_id) => match tcx.trait_id_of_impl(impl_id) {