data class A(val a: Int, val b: Int) fun box() : String { @a val x = 1 @b fun a() = 2 @c val (z, z2) = A(1, 2) if (x != 1) return "fail 1" if (a() != 2) return "fail 2" if (z != 1 || z2 != 2) return "fail 3" return "OK" }