// CHECK:
//   Mangled name: #testNullCheck(){}
//   Public signature: /testNullCheck|3964065321325408775[0]
//   Public signature debug description: testNullCheck(){}
fun testNullCheck(): Unit

// CHECK JVM_IR:
//   Mangled name: #useAny(kotlin.Function0<kotlin.Any>){}kotlin.Any
//   Public signature: /useAny|7648226468706473651[0]
//   Public signature debug description: useAny(kotlin.Function0<kotlin.Any>){}kotlin.Any
fun useAny(fn: Function0<Any>): Any

