{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"return"}]}
                return ecx.probe_builtin_trait_candidate(BuiltinImplSource::Misc).enter(|ecx| {
            ty::Alias(_, _) | ty::Param(_) | ty::Placeholder(..) => {
                    ecx.structurally_instantiate_normalizes_to_term(goal, goal.predicate.alias);