Correct file names for tests in tests/language.

tests/language/optimized_lists.dart

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test program for correct optimizations related to types fo allocated lists.
-
-main() {
-  // Trigger optimization of 'test' method.
-  for (int i = 0; i < 1000; i++) {
-    test(2);
-  }
-}
-
-
-test(n) {
-  var a = new List();    // Growable list.
-  var b = new List(10);  // Fixed size list.
-  var c = const [1, 2, 3, 4];  // Constant aray.
-  // In optimized mode the class checks will be eliminated since the
-  // constructors above provide information about exact types.
-  a.add(4);
-  b[0] = 5;
-  Expect.equals(4, a[0]);
-  Expect.equals(5, b[0]);
-  // Test bound check elimination.
-  Expect.equals(2, c[1]);
-  // Test elimination of array length computation.
-  var v = c[n];
-  Expet equals(v, c[n]);
-}