Add one more test for configurable imports.

tests/language/config_import_corelib_http.dart

Index: tests/language/config_import_corelib_http.dart
diff --git a/tests/language/config_import_corelib_http.dart b/tests/language/config_import_corelib_http.dart
new file mode 100644
index 0000000000000000000000000000000000000000..292e0915032a4fe34e26164b22c7cbe03c60b4e1
--- /dev/null
+++ b/tests/language/config_import_corelib_http.dart
@@ -0,0 +1,14 @@
+// Copyright (c) 2015, 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 "dart:http";
+
+class Classy {
+  String get name => "classy http";
+  String httpSpecific() => "classy http";
+}
+
+bool general() => true;
+bool httpSpecific() => true;
+final String name = "http";