func testConvertToTernaryExpr() {
  let a = 3
  let b = 5
  let x: Int
  x = a < 5 ? a : b
}
func testConvertTupleToTernaryExpr() {
  let a = 3
  let b = 5
  let (x, y): (Int, Int)
  if a < 5 {
    (x, y) = (a, b)
  } else {
    (x, y) = (b, a)
  }
}