Migrated test block 12 to Dart 2.0.

tests/corelib/iterable_to_set_test.dart

Index: tests/corelib/iterable_to_set_test.dart
diff --git a/tests/corelib/iterable_to_set_test.dart b/tests/corelib/iterable_to_set_test.dart
deleted file mode 100644
index 628ddb89b1ee0cd0d070c58ba9474232f4be3438..0000000000000000000000000000000000000000
--- a/tests/corelib/iterable_to_set_test.dart
+++ /dev/null
@@ -1,53 +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.
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 4];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set<String> set2 = new Set<String>();
-  set2..add("foo")..add("bar")..add("toto");
-  Set set3 = new Set();
-
-  var setCopy = list1.toSet();
-  Expect.equals(3, setCopy.length);
-  Expect.isTrue(setCopy.contains(1));
-  Expect.isTrue(setCopy.contains(2));
-  Expect.isTrue(setCopy.contains(3));
-  Expect.isTrue(setCopy is Set<int>);
-  Expect.isFalse(setCopy is Set<String>);
-
-  setCopy = list2.toSet();
-  Expect.equals(1, setCopy.length);
-  Expect.isTrue(setCopy.contains(4));
-  Expect.isTrue(setCopy is Set<int>);
-  Expect.isFalse(setCopy is Set<String>);
-
-  setCopy = list3.toSet();
-  Expect.isTrue(setCopy.isEmpty);
-  Expect.isTrue(setCopy is Set<String>);
-  Expect.isFalse(setCopy is Set<int>);
-
-  setCopy = set1.toSet();
-  Expect.setEquals(set1, setCopy);
-  Expect.isTrue(setCopy is Set<int>);
-  Expect.isFalse(setCopy is Set<String>);
-  Expect.isFalse(identical(setCopy, set1));
-
-  setCopy = set2.toSet();
-  Expect.setEquals(set2, setCopy);
-  Expect.isTrue(setCopy is Set<String>);
-  Expect.isFalse(setCopy is Set<int>);
-  Expect.isFalse(identical(setCopy, set2));
-
-  setCopy = set3.toSet();
-  Expect.setEquals(set3, setCopy);
-  Expect.isTrue(setCopy is Set<String>);
-  Expect.isTrue(setCopy is Set<int>);
-  Expect.isFalse(identical(setCopy, set3));
-}