{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"cx.require_lang_item(TraitSolverLangItem::AsyncFnKindHelper),"}]}
                        cx.require_lang_item(TraitSolverLangItem::AsyncFnKindHelper),
                        cx,
                        [kind_ty, Ty::from_closure_kind(cx, goal_kind)],