{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"ty::Coroutine(_,"}]}
            ty::Coroutine(_, args) => self.open_drop_for_tuple(args.as_coroutine().upvar_tys()),
            // See librustc_body/transform/coroutine.rs for more details.
            ty::Tuple(fields) => self.open_drop_for_tuple(fields),