Remove backends.

compiler/javatests/com/google/dart/compiler/backend/js/testRuntimeTypes.dart

Index: compiler/javatests/com/google/dart/compiler/backend/js/testRuntimeTypes.dart
diff --git a/compiler/javatests/com/google/dart/compiler/backend/js/testRuntimeTypes.dart b/compiler/javatests/com/google/dart/compiler/backend/js/testRuntimeTypes.dart
deleted file mode 100644
index e52dcf17e5c87d44eac4d9b9a0672a6f6a937776..0000000000000000000000000000000000000000
--- a/compiler/javatests/com/google/dart/compiler/backend/js/testRuntimeTypes.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2011, 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.
-
-class B {
-  const B();
-}
-
-class C<T> {
-  const C();
-}
-
-class D<T> extends C<T> {
-  factory D() {
-    return new E<T>();
-  }
-}
-
-class E<T> extends D<T> {
-} 
-
-
-// SnippetTestCase only returns generated JS for the Main class.
-class Main {
- static void main() {
-    var a = 0;
-    var _marker_0 = 1;
-    var _marker_B1 = const B();
-    var _marker_B2 = new B();
-    var _marker_C1 = const C();
-    var _marker_C2 = const C<String>();
-    var _marker_C3 = new C();
-    var _marker_C4 = new C<Object>();
-    var _marker_D1 = new D();
-    var _marker_D2 = new D<String>();
-
-    a = _marker_B1 is B;
-    a = _marker_C1 is C;
-    a = _marker_C2 is C<String>;
-    a = _marker_C4 is C<Object>;
-    a = _marker_C4 is Object;
-    a = _marker_D1 is D;
-    a = _marker_D2 is D<String>;
-  }
-}
-
-main() {
-  Main.main();
-}