Merging dart:html interfaces and implementations

sdk/lib/html/templates/html/impl/impl_Event.darttemplate

Index: sdk/lib/html/templates/html/impl/impl_Event.darttemplate
diff --git a/sdk/lib/html/templates/html/interface/interface_Event.darttemplate b/sdk/lib/html/templates/html/impl/impl_Event.darttemplate
similarity index 72%
copy from sdk/lib/html/templates/html/interface/interface_Event.darttemplate
copy to sdk/lib/html/templates/html/impl/impl_Event.darttemplate
index 141f0d6c57065ddb3c6807545bccc4a27e397ad1..55d603959e090d927491c57e184470ef9d6ce2a8 100644
--- a/sdk/lib/html/templates/html/interface/interface_Event.darttemplate
+++ b/sdk/lib/html/templates/html/impl/impl_Event.darttemplate
@@ -4,17 +4,14 @@
 
 // WARNING: Do not edit - generated code.
 
-part of html;
-
-$!COMMENT
-abstract class $ID$EXTENDS {
-
+class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
   // In JS, canBubble and cancelable are technically required parameters to
   // init*Event. In practice, though, if they aren't provided they simply
   // default to false (since that's Boolean(undefined)).
   //
   // Contrary to JS, we default canBubble and cancelable to true, since that's
   // what people want most of the time anyway.
-  factory $ID(String type, [bool canBubble = true, bool cancelable = true]) =>
-      _$(ID)FactoryProvider.create$ID(type, canBubble, cancelable);
-$!MEMBERS}
+  factory $CLASSNAME(String type, [bool canBubble = true, bool cancelable = true]) =>
+      _$(CLASSNAME)FactoryProvider.create$CLASSNAME(type, canBubble, cancelable);
+$!MEMBERS
+}