{"ast_node_type":"other","tokens":[{"end":26,"kind":"keyword","start":0,"text":"match"}]}
    match self_ty.kind() {
) -> Result<(ty::Binder<I, (I::FnInputTys, I::Ty)>, I::DefId, I::GenericArgs), NoSolution> {
        ty::FnDef(def_id, args) => {