object X1 {
  private constructor() /* primary */ {
    super/*Any*/()
    /* <init>() */

  }

  var x1: Int
    field = 0
    get
    set

  object X2 {
    private constructor() /* primary */ {
      super/*Any*/()
      /* <init>() */

    }

    var x2: Int
      field = 0
      get
      set

    object X3 {
      private constructor() /* primary */ {
        super/*Any*/()
        /* <init>() */

      }

      var x3: Int
        field = 0
        get
        set

    }

  }

}

fun test1(a: IntArray) {
  var i: Int = 0
  val <array>: IntArray = a
  val <index_0>: Int = { // BLOCK
    val <unary>: Int = i
    i = <unary>.inc()
    <unary>
  }
  val <unary>: Int = <array>.get(index = <index_0>)
  <array>.set(index = <index_0>, value = <unary>.inc())
  <unary> /*~> Unit */
}

fun test2() {
  val <receiver>: X1 = X1
  val <unary>: Int = <receiver>.<get-x1>()
  <receiver>.<set-x1>(<set-?> = <unary>.inc())
  <unary> /*~> Unit */
  val <receiver>: X2 = X2
  val <unary>: Int = <receiver>.<get-x2>()
  <receiver>.<set-x2>(<set-?> = <unary>.inc())
  <unary> /*~> Unit */
  val <receiver>: X3 = X3
  val <unary>: Int = <receiver>.<get-x3>()
  <receiver>.<set-x3>(<set-?> = <unary>.inc())
  <unary> /*~> Unit */
}

class B {
  constructor(s: Int = 0) /* primary */ {
    super/*Any*/()
    /* <init>() */

  }

  var s: Int
    field = s
    get
    set

}

object Host {
  private constructor() /* primary */ {
    super/*Any*/()
    /* <init>() */

  }

  operator fun B.plusAssign(b: B) {
    <this>.<set-s>(<set-?> = <this>.<get-s>().plus(other = b.<get-s>()))
  }

}

fun Host.test3(v: B) {
  (<this>, v).plusAssign(b = B(s = 1000))
}