Migrate block 162 to Dart 2.0.

tests/language/type_propagation_in_for_update_test.dart

Index: tests/language/type_propagation_in_for_update_test.dart
diff --git a/tests/language/type_propagation_in_for_update_test.dart b/tests/language/type_propagation_in_for_update_test.dart
deleted file mode 100644
index 058518e37e4e2cbd12497c988034d77ea6d81536..0000000000000000000000000000000000000000
--- a/tests/language/type_propagation_in_for_update_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file

[eernst, 2017/09/04 17:04:56]

Lost coverage: don't delete this 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() => 'foo';
-
-main() {
-  Expect.throws(foo1);
-  Expect.throws(foo2);
-}
-
-foo1() {
-  var a = bar();
-  for (;; a = 1 + a) {
-    if (a != 'foo') return;
-  }
-}
-
-foo2() {
-  var a = bar();
-  for (;; a = 1 + a) {
-    if (a != 'foo') break;
-  }
-}