Migrate block 162 to Dart 2.0.

tests/language_strong/type_propagation_phi_test.dart

Index: tests/language_strong/type_propagation_phi_test.dart
diff --git a/tests/language_strong/type_propagation_phi_test.dart b/tests/language_strong/type_propagation_phi_test.dart
deleted file mode 100644
index 4c8e3e222ca47d6e08851f8b10449e8d70ccaee6..0000000000000000000000000000000000000000
--- a/tests/language_strong/type_propagation_phi_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// 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.
-// Check that phi type computation in the Dart2Js compiler does the
-// correct thing.
-
-import "package:expect/expect.dart";
-
-bar() => 490;
-bar2() => 0;
-
-foo(b) {
-  var x = bar();
-  var x2 = x;
-  if (b) x2 = bar2();
-  var x3 = 9 + x; // Guarantees that x is a number. Dart2js propagated the
-  // type information back to the phi (for x2).
-  return x2 + x3;
-}
-
-main() {
-  Expect.equals(499, foo(true));
-}