 public func run_WordCountUniqueUTF16(_ N: Int) {
   for _ in 1...100*N {
     let words = Set(identity(utf16Words))
-    guard words.count == 168 else { fatalError() }
+    CheckResults(words.count == 168)
     blackHole(words)
   }
 }

public func run_WordCountHistogramUTF16(_ N: Int) {
  for _ in 1...100*N {
    let words = histogram(for: identity(utf16Words))
    guard words.count == 168 else { fatalError() }
    guard words[0] == ("and", 15) else { fatalError() }
    blackHole(words)
  }
}

public func run_WordCountUniqueASCII(_ N: Int) {
  for _ in 1...100*N {
    let words = Set(identity(asciiWords))
    CheckResults(words.count == 168)
    blackHole(words)
  }
}
