Don't use 'interface' in test files.

editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/model/testsource/SuperTest.dart

Index: editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/model/testsource/SuperTest.dart
diff --git a/editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/model/testsource/SuperTest.dart b/editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/model/testsource/SuperTest.dart
deleted file mode 100644
index 8918a87283c90629694189b6e47441391940819e..0000000000000000000000000000000000000000
--- a/editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/model/testsource/SuperTest.dart
+++ /dev/null
@@ -1,54 +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.
-
-// Tests super calls and constructors.
-class SuperTest {
-  static main() {
-    Sub sub = new Sub(1, 2);
-    assert(sub.x == 1);
-    assert(sub.y == 2);
-    assert(sub.z == 3);
-    assert(sub.v == 1);
-    assert(sub.w == 2);
-    assert(sub.u == 3);
-
-    // TODO(ngeoffrya): Re-enable this test once we have proper
-    // initializers.
-    /*
-    sub = new Sub.static(0);
-    assert(sub.x == 0);
-    assert(sub.y == 1);
-    assert(sub.v == 2);
-    assert(sub.w == 3);
-    assert(sub.z == 4);
-    assert(sub.u == 5);*/
-  }
-}
-
-class Sup {
-  // static int i = 0;
-  var x, y, z;
-
-  Sup(a, b) : x(a), y(b) {
-    z = a + b;
-  }
-  /*
-  Sup.static() : x(i++), y(i++) {
-    z = i++;
-  }
-  */
-}
-
-class Sub extends Sup {
-  var u, v, w;
-
-  Sub(a, b) : super(a, b), v(a), w(b) {
-    u = a + b;
-  }
-  /*
-  Sub.static() : super.static(), v(i++), w(i++) {
-    u = i++;
-  }
-  */
-}