Hide collection-dev library.

tests/corelib/hidden_library_test.dart

Index: tests/corelib/hidden_library_test.dart
diff --git a/tests/compiler/dart2js_extra/regress/4515_3_test.dart b/tests/corelib/hidden_library_test.dart
similarity index 58%
copy from tests/compiler/dart2js_extra/regress/4515_3_test.dart
copy to tests/corelib/hidden_library_test.dart
index 319eb0cac719a777093aa372c3e2f0e27b396612..4e7dec06a8caaaa341ea0df76199463fd1fb6394 100644
--- a/tests/compiler/dart2js_extra/regress/4515_3_test.dart
+++ b/tests/corelib/hidden_library_test.dart
@@ -1,20 +1,10 @@
 // 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.
+// Test that we can't import the internal hidden library "dart:_collection-dev".
 
-class A {
-  a(x) => x + 1;
-}
-
-f(p) => p("A");
+import "dart:_collection_dev";  /// 01: compile-time error
 
 main() {
-  A a = new A();
-  a.a(1);
-  var v = null;
-  try {
-    v = f(a.a);
-  } catch (e) { }
-
-  Expect.equals(null, v);
+  var x = new Map();
 }