   }
 
   expectEqual(["furth", "lard", "bart"], matches)
+#else
+  expectUnreachable()
+#endif
 }
 
 StringTests.test("String.append(_: UnicodeScalar)") {

  expectFalse("a\u{0301}bc".hasPrefix("a"))
  expectTrue("\u{00e1}bc".hasPrefix("a\u{0301}"))
  expectTrue("a\u{0301}bc".hasPrefix("\u{00e1}"))
}

StringTests.test("literalConcatenation") {

      }
    }
  }
#else
  expectUnreachable()
#endif
}

StringTests.test("stringCoreReserve")
  .skip(.LinuxAny(reason: "Foundation dependency"))
  .code {
#if _runtime(_ObjC)
  for k in 0...5 {
    var base: String
    var startedNative: Bool
