// FIR_IGNORE
// new contracts syntax for simple functions
//                                                    EQ operator call
//           [ERROR : MyClass]?                       │  [ERROR: unknown type]          [ERROR: unknown type]
//           │                                        │  │                              │
fun test1(s: MyClass?) contract [returns() implies (s != null), returns() implies (s is MySubClass)] {
//  [ERROR: not resolved]
//  │
    test_1()
}

fun test2() contract [returnsNotNull()] {
//  fun test2(): Unit
//  │
    test2()
}