message: [SwiftExpressionParser] Add tests for the fixed closure behaviour.
  <rdar://problem/47982630>
diff: @@ -8,7 +8,11 @@ func main() -> Int {
  //%self.expect('frame var $1', substrs=['foo'])
  )
  - return 0
  + var tinky = [1,2].map({$0 * 2})
  +
  + return 0 //%self.expect('expr tinky.map({$0 * 2})', substrs=['[0] = 2', '[1] = 4'])
  + //%self.expect('expr [2,4].map({$0 * 2})', substrs=['[0] = 4', '[1] = 8'])
  + //%self.expect('expr $0', substrs=['unresolved identifier \'$0\''], error=True)
  }
  _ = main()
  