kotlin/compiler/testData/codegen/box/extensionFunctions/nested2.kt

fun box() : String {
  val y = 12
  val op = { x:Int -> (x + y).toString() }

  val op2 : Int.(Int) -> String = { op(this + it) }

  return if("27" == 5.op2(10)) "OK" else "fail"
}