Update scanner so tests pass.

pkg/dart_scanner/lib/src/abstract_scanner.dart

Index: pkg/dart_scanner/lib/src/abstract_scanner.dart
diff --git a/pkg/dart_scanner/lib/src/abstract_scanner.dart b/pkg/dart_scanner/lib/src/abstract_scanner.dart
index 7d5dc1605d79409b3a8edfe6aeb6d9cc100d6486..8f3fbbdc01bce5a4b5b0835e95f18f60d5204aa1 100644
--- a/pkg/dart_scanner/lib/src/abstract_scanner.dart
+++ b/pkg/dart_scanner/lib/src/abstract_scanner.dart
@@ -2,7 +2,7 @@
 // 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.
 
-library scanner.abstract_scanner;
+library dart_scanner.abstract_scanner;
 
 import '../scanner.dart' show
     Scanner;