fun test1d(x: Double, y: Double): Boolean {
  return x.equals(other = y)
}

fun test1f(x: Float, y: Float): Boolean {
  return x.equals(other = y)
}

fun Float.test1fr(x: Float): Boolean {
  return <this>.equals(other = x)
}

fun test2d(x: Double, y: Double?): Boolean {
  return x.equals(other = y)
}

fun test2f(x: Float, y: Float?): Boolean {
  return x.equals(other = y)
}

fun Float.test2fr(x: Float?): Boolean {
  return <this>.equals(other = x)
}

fun test3d(x: Double, y: Any): Boolean {
  return x.equals(other = y)
}

fun test3f(x: Float, y: Any): Boolean {
  return x.equals(other = y)
}

fun Float.test3fr(x: Any): Boolean {
  return <this>.equals(other = x)
}

fun test4d(x: Double, y: Number): Boolean {
  return x.equals(other = y)
}

fun test4f(x: Float, y: Number): Boolean {
  return x.equals(other = y)
}

fun Float.test4fr(x: Number): Boolean {
  return <this>.equals(other = x)
}

fun test5d(x: Double, y: Any): Boolean {
  return when {
    y is Double -> x.equals(other = y)
    else -> false
  }
}

fun test5f(x: Float, y: Any): Boolean {
  return when {
    y is Float -> x.equals(other = y)
    else -> false
  }
}

fun Float.test5fr(x: Any): Boolean {
  return when {
    x is Float -> <this>.equals(other = x)
    else -> false
  }
}

fun test6d(x: Any, y: Any): Boolean {
  return when {
    when {
      x is Double -> y is Double
      else -> false
    } -> x.equals(other = y)
    else -> false
  }
}

fun test6f(x: Any, y: Any): Boolean {
  return when {
    when {
      x is Float -> y is Float
      else -> false
    } -> x.equals(other = y)
    else -> false
  }
}

fun Float.test6fr(x: Any): Boolean {
  return when {
    x is Double -> <this>.equals(other = x)
    else -> false
  }
}

fun testDF(x: Any, y: Any): Boolean {
  return when {
    when {
      x is Double -> y is Float
      else -> false
    } -> x.equals(other = y)
    else -> false
  }
}

fun testFD(x: Any, y: Any): Boolean {
  return when {
    when {
      x is Float -> y is Double
      else -> false
    } -> x.equals(other = y)
    else -> false
  }
}