// CHECK:
//   Mangled name: Test
//   Public signature: /Test|null[0]
class Test : J {
  // CHECK:
  //   Mangled name: Test{}j
  //   Public signature: /Test.j|-6836075379230315579[0]
  //   Public signature debug description: {}j
  private val j: J
    // CHECK JVM_IR:
    //   Mangled name: Test#<get-j>(){}J
    //   Public signature: /Test.j.<get-j>|-6114050685652754863[0]
    //   Public signature debug description: <get-j>(){}J
    private get

  // CHECK:
  //   Mangled name: Test#<init>(J){}
  //   Public signature: /Test.<init>|1083383516528472352[0]
  //   Public signature debug description: <init>(J){}
  constructor(j: J) /* primary */

  // CHECK JVM_IR:
  //   Mangled name: Test#returnNotNull(){}kotlin.String{EnhancedNullability}
  //   Public signature: /Test.returnNotNull|-3682895453084642874[0]
  //   Public signature debug description: returnNotNull(){}kotlin.String{EnhancedNullability}
  override fun returnNotNull(): @EnhancedNullability String

  // CHECK JVM_IR:
  //   Mangled name: Test#returnNullable(){}kotlin.String?{EnhancedNullability}
  //   Public signature: /Test.returnNullable|-404622903433277680[0]
  //   Public signature debug description: returnNullable(){}kotlin.String?{EnhancedNullability}
  override fun returnNullable(): @EnhancedNullability String?

  // CHECK JVM_IR:
  //   Mangled name: Test#returnsFlexible(){}kotlin.String?
  //   Public signature: /Test.returnsFlexible|-5946143652599840920[0]
  //   Public signature debug description: returnsFlexible(){}kotlin.String?
  override fun returnsFlexible(): String?

  // CHECK:
  //   Mangled name: Test#takeFlexible(kotlin.String?){}
  //   Public signature: /Test.takeFlexible|8434697244780181625[0]
  //   Public signature debug description: takeFlexible(kotlin.String?){}
  override fun takeFlexible(x: String?): Unit

  // CHECK:
  //   Mangled name: Test#takeNotNull(kotlin.String{EnhancedNullability}){}
  //   Public signature: /Test.takeNotNull|2138033560695328162[0]
  //   Public signature debug description: takeNotNull(kotlin.String{EnhancedNullability}){}
  override fun takeNotNull(x: @EnhancedNullability String): Unit

  // CHECK:
  //   Mangled name: Test#takeNullable(kotlin.String?{EnhancedNullability}){}
  //   Public signature: /Test.takeNullable|-558980523272297075[0]
  //   Public signature debug description: takeNullable(kotlin.String?{EnhancedNullability}){}
  override fun takeNullable(x: @EnhancedNullability String?): Unit

}