{"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"ty::ExistentialPredicate::Projection(proj)"}]}
                        ty::ExistentialPredicate::Projection(proj) => proj.trait_ref(tcx),
                        ty::ExistentialPredicate::Trait(trait_ref) => trait_ref,
                        ty::ExistentialPredicate::AutoTrait(def_id) => {