{"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"ty::Alias(_,"}]}
            ty::Alias(_, _) | ty::Param(_) | ty::Placeholder(..) => {
            // this impl candidate anyways. It's still a bit scuffed.
                return ecx.probe_builtin_trait_candidate(BuiltinImplSource::Misc).enter(|ecx| {