// CHECK:
//   Mangled name: K1
//   Public signature: /K1|null[0]
class K1 : JFoo {
  // CHECK:
  //   Mangled name: K1#<init>(){}
  //   Public signature: /K1.<init>|-5645683436151566731[0]
  //   Public signature debug description: <init>(){}
  constructor() /* primary */

  // CHECK JVM_IR:
  //   Mangled name: K1#foo(){}kotlin.String{EnhancedNullability}
  //   Public signature: /K1.foo|7566064415059097436[0]
  //   Public signature debug description: foo(){}kotlin.String{EnhancedNullability}
  /* fake */ override fun foo(): @EnhancedNullability String

}

// CHECK:
//   Mangled name: K2
//   Public signature: /K2|null[0]
class K2 : JFoo {
  // CHECK:
  //   Mangled name: K2#<init>(){}
  //   Public signature: /K2.<init>|-5645683436151566731[0]
  //   Public signature debug description: <init>(){}
  constructor() /* primary */

  // CHECK JVM_IR:
  //   Mangled name: K2#foo(){}kotlin.String
  //   Public signature: /K2.foo|485335955883620819[0]
  //   Public signature debug description: foo(){}kotlin.String
  override fun foo(): String

}

// CHECK:
//   Mangled name: K3
//   Public signature: /K3|null[0]
class K3 : JUnrelatedFoo, IFoo {
  // CHECK:
  //   Mangled name: K3#<init>(){}
  //   Public signature: /K3.<init>|-5645683436151566731[0]
  //   Public signature debug description: <init>(){}
  constructor() /* primary */

  // CHECK JVM_IR:
  //   Mangled name: K3#foo(){}kotlin.String
  //   Public signature: /K3.foo|485335955883620819[0]
  //   Public signature debug description: foo(){}kotlin.String
  /* fake */ override fun foo(): String

}

// CHECK:
//   Mangled name: K4
//   Public signature: /K4|null[0]
class K4 : JUnrelatedFoo, IFoo {
  // CHECK:
  //   Mangled name: K4#<init>(){}
  //   Public signature: /K4.<init>|-5645683436151566731[0]
  //   Public signature debug description: <init>(){}
  constructor() /* primary */

  // CHECK JVM_IR:
  //   Mangled name: K4#foo(){}kotlin.String?
  //   Public signature: /K4.foo|4483044608789364619[0]
  //   Public signature debug description: foo(){}kotlin.String?
  override fun foo(): String?

}

// CHECK:
//   Mangled name: TestJFoo
//   Public signature: /TestJFoo|null[0]
class TestJFoo : IFoo {
  // CHECK:
  //   Mangled name: TestJFoo#<init>(){}
  //   Public signature: /TestJFoo.<init>|-5645683436151566731[0]
  //   Public signature debug description: <init>(){}
  constructor() /* primary */

  // CHECK JVM_IR:
  //   Mangled name: TestJFoo#foo(){}kotlin.String
  //   Public signature: /TestJFoo.foo|485335955883620819[0]
  //   Public signature debug description: foo(){}kotlin.String
  override fun foo(): String

}

// CHECK:
//   Mangled name: TestK1
//   Public signature: /TestK1|null[0]
class TestK1 : IFoo {
  // CHECK:
  //   Mangled name: TestK1#<init>(){}
  //   Public signature: /TestK1.<init>|-5645683436151566731[0]
  //   Public signature debug description: <init>(){}
  constructor() /* primary */

  // CHECK JVM_IR:
  //   Mangled name: TestK1#foo(){}kotlin.String
  //   Public signature: /TestK1.foo|485335955883620819[0]
  //   Public signature debug description: foo(){}kotlin.String
  override fun foo(): String

}

// CHECK:
//   Mangled name: TestK2
//   Public signature: /TestK2|null[0]
class TestK2 : IFoo {
  // CHECK:
  //   Mangled name: TestK2#<init>(){}
  //   Public signature: /TestK2.<init>|-5645683436151566731[0]
  //   Public signature debug description: <init>(){}
  constructor() /* primary */

  // CHECK JVM_IR:
  //   Mangled name: TestK2#foo(){}kotlin.String
  //   Public signature: /TestK2.foo|485335955883620819[0]
  //   Public signature debug description: foo(){}kotlin.String
  override fun foo(): String

}

// CHECK:
//   Mangled name: TestK3
//   Public signature: /TestK3|null[0]
class TestK3 : IFoo {
  // CHECK:
  //   Mangled name: TestK3#<init>(){}
  //   Public signature: /TestK3.<init>|-5645683436151566731[0]
  //   Public signature debug description: <init>(){}
  constructor() /* primary */

  // CHECK JVM_IR:
  //   Mangled name: TestK3#foo(){}kotlin.String
  //   Public signature: /TestK3.foo|485335955883620819[0]
  //   Public signature debug description: foo(){}kotlin.String
  override fun foo(): String

}

// CHECK:
//   Mangled name: TestK4
//   Public signature: /TestK4|null[0]
class TestK4 : IFoo {
  // CHECK:
  //   Mangled name: TestK4#<init>(){}
  //   Public signature: /TestK4.<init>|-5645683436151566731[0]
  //   Public signature debug description: <init>(){}
  constructor() /* primary */

  // CHECK JVM_IR:
  //   Mangled name: TestK4#foo(){}kotlin.String
  //   Public signature: /TestK4.foo|485335955883620819[0]
  //   Public signature debug description: foo(){}kotlin.String
  override fun foo(): String

}

// CHECK:
//   Mangled name: IFoo
//   Public signature: /IFoo|null[0]
interface IFoo {
  // CHECK JVM_IR:
  //   Mangled name: IFoo#foo(){}kotlin.String
  //   Public signature: /IFoo.foo|485335955883620819[0]
  //   Public signature debug description: foo(){}kotlin.String
  abstract fun foo(): String

}