package foo native fun nativeFun(i:Int, s:String): String = js.noImpl fun bar(funRef: (Int, String) -> String): String = funRef(4, "boo") fun box(): String { var r = nativeFun(4, "boo") if (r != "nativeFun 4 boo") return r r = bar(::nativeFun) if (r != "nativeFun 4 boo") return r r = (::nativeFun)(4, "boo") if (r != "nativeFun 4 boo") return r return "OK" }