Generate EventListener attributes of non-EventTarget classes.

client/dom/generated/src/interface/IDBDatabase.dart

Index: client/dom/generated/src/interface/IDBDatabase.dart
diff --git a/client/dom/generated/src/interface/IDBDatabase.dart b/client/dom/generated/src/interface/IDBDatabase.dart
index e025d46122aed3e5ba9c8917e93590d0e999b55e..d305cee1ffcbc7990bac591f1050b8a49d1619eb 100644
--- a/client/dom/generated/src/interface/IDBDatabase.dart
+++ b/client/dom/generated/src/interface/IDBDatabase.dart
@@ -8,6 +8,18 @@ interface IDBDatabase {
 
   String get name();
 
+  EventListener get onabort();
+
+  void set onabort(EventListener value);
+
+  EventListener get onerror();
+
+  void set onerror(EventListener value);
+
+  EventListener get onversionchange();
+
+  void set onversionchange(EventListener value);
+
   String get version();
 
   void addEventListener(String type, EventListener listener, [bool useCapture]);