// CHECK:
//   Mangled name: Derived
//   Public signature: /Derived|null[0]
class Derived : Base {
  // CHECK:
  //   Mangled name: Derived{}ref
  //   Public signature: /Derived.ref|-1081516401990928556[0]
  val ref: KMutableProperty0<String?>
    // CHECK JVM_IR:
    //   Mangled name: Derived#<get-ref>(){}kotlin.reflect.KMutableProperty0<kotlin.String?>
    //   Public signature: /Derived.ref.<get-ref>|-6985556442168523841[0]
    get

  // CHECK:
  //   Mangled name: Derived#<init>(){}
  //   Public signature: /Derived.<init>|-5645683436151566731[0]
  constructor() /* primary */

  // CHECK:
  //   Mangled name: Derived#set(){}
  //   Public signature: /Derived.set|-7365752122041802629[0]
  fun set(): Unit

}