Rename OutOfMemoryException to OutOfMemoryError.

lib/coreimpl/exceptions.dart

Index: lib/coreimpl/exceptions.dart
diff --git a/lib/coreimpl/exceptions.dart b/lib/coreimpl/exceptions.dart
deleted file mode 100644
index 72559ba6e231a91abf191d6fb948706c4db13b1b..0000000000000000000000000000000000000000
--- a/lib/coreimpl/exceptions.dart
+++ /dev/null
@@ -1,9 +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 ExceptionImplementation implements Exception {
-  final message;
-  const ExceptionImplementation([this.message]);
-  String toString() => (message == null) ? "Exception" : "Exception: $message";
-}