   func testPerformanceSequenceOfShuffledSequence()
   {
     self.measureBlock() {
-//      let s = Array(SequenceOf(ShuffledSequence(self.a)))
+      // Crashes if invoked directly with 6D520o
+      // let s = Array(SequenceOf(ShuffledSequence(self.a)))
       let soss = SequenceOf(ShuffledSequence(self.a))
       let s = Array(soss)
     }

  func testPerformanceSequenceOfPermutationGenerator()
  {
    self.measureBlock() {
//      let permutation = PermutationGenerator(elements: self.a, indices: IndexShuffler(indices(self.a)))
      let shuffledIndices = IndexShuffler(indices(self.a))
      let permutation = PermutationGenerator(elements: self.a, indices: shuffledIndices)
      let s = Array(SequenceOf(permutation))
    }
  }
}

  {
    self.measureBlock() {
      let s = Array(SequenceOf(self.a))
    }
  }

