Migrated test block 218 to Dart 2.0.

tests/lib/mirrors/array_tracing3_test.dart

Index: tests/lib/mirrors/array_tracing3_test.dart
diff --git a/tests/lib/mirrors/array_tracing3_test.dart b/tests/lib/mirrors/array_tracing3_test.dart
deleted file mode 100644
index 38a6a6163bc6e5c4c620522d3371c7f2409874af..0000000000000000000000000000000000000000
--- a/tests/lib/mirrors/array_tracing3_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, 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.
-
-@MirrorsUsed(targets: 'A, List')
-import 'dart:mirrors';
-
-class A {
-  static var field;
-}
-
-main() {
-  MirrorSystem mirrors = currentMirrorSystem();
-  ClassMirror a = reflectClass(A);
-  var array = [42];
-  A.field = array;
-  var field = a.getField(#field);
-  field.invoke(#clear, []);
-  if (array.length == 1) throw 'Test failed';
-}