Add constructors to all the event classes.

client/html/src/TextEvent.dart

Index: client/html/src/TextEvent.dart
diff --git a/client/html/generated/src/interface/TextEvent.dart b/client/html/src/TextEvent.dart
similarity index 56%
rename from client/html/generated/src/interface/TextEvent.dart
rename to client/html/src/TextEvent.dart
index c336a121cf45ee0e31595a4bf895453f184e8467..be2db62c6074d6f7df184353ade1c7e07f54fa32 100644
--- a/client/html/generated/src/interface/TextEvent.dart
+++ b/client/html/src/TextEvent.dart
@@ -2,11 +2,10 @@
 // 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 TextEvent extends UIEvent factory TextEventWrappingImplementation {
 
-interface TextEvent extends UIEvent {
+  TextEvent(String type, Window view, String data, [bool canBubble,
+      bool cancelable]);
 
   String get data();
-
-  void initTextEvent(String typeArg, bool canBubbleArg, bool cancelableArg, Window viewArg, String dataArg);
 }