Add constructors to all the event classes.

client/html/generated/src/interface/OverflowEvent.dart

Index: client/html/generated/src/interface/OverflowEvent.dart
diff --git a/client/html/generated/src/interface/OverflowEvent.dart b/client/html/generated/src/interface/OverflowEvent.dart
deleted file mode 100644
index 2fc48fb9c59efb8c9bdabce2fe9fdc6134734c14..0000000000000000000000000000000000000000
--- a/client/html/generated/src/interface/OverflowEvent.dart
+++ /dev/null
@@ -1,22 +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.
-
-// WARNING: Do not edit - generated code.
-
-interface OverflowEvent extends Event {
-
-  static final int BOTH = 2;
-
-  static final int HORIZONTAL = 0;
-
-  static final int VERTICAL = 1;
-
-  bool get horizontalOverflow();
-
-  int get orient();
-
-  bool get verticalOverflow();
-
-  void initOverflowEvent(int orient, bool horizontalOverflow, bool verticalOverflow);
-}