message: Add another test to TestSwiftGenericExtension.py.
diff: // -----------------------------------------------------------------------------
  extension Array {
  func test() {
  + print("PATPAT") //% self.expect("p self", substrs=['[0] = 1', '[1] = 2', '[2] = 3'])
  return //% self.expect("frame variable -d run -- self", substrs=['[0] = 1', '[1] = 2', '[2] = 3'])
  }
  }
  