swift234

Subscription should implicitly tuple the key/index

This now works:

struct no_index {
  subscript () -> Int { return 42 }
  func test() -> Int { return this[] }
}

struct tuple_index {
  subscript (x : Int, y : Int) -> (Int, Int) { return (x, y) }
  func test()  -> (Int, Int) { return this[123, 456] }
  func test2() -> (Int, Int) { return this[y = 123, x = 456] }
}

Swift SVN r3965