Refine types of EventTarget

sdk/lib/html/dart2js/html_dart2js.dart

Index: sdk/lib/html/dart2js/html_dart2js.dart
diff --git a/sdk/lib/html/dart2js/html_dart2js.dart b/sdk/lib/html/dart2js/html_dart2js.dart
index 8660c15759eda67809a5ce0a1cee546aa9ee1585..74c9b983304eabf2fe08f14d0f21dcba4d3cb490 100644
--- a/sdk/lib/html/dart2js/html_dart2js.dart
+++ b/sdk/lib/html/dart2js/html_dart2js.dart
@@ -6017,6 +6017,27 @@ class DirectoryReaderSync native "*DirectoryReaderSync" {
 // BSD-style license that can be found in the LICENSE file.
 
 
+/**
+ * Represents an HTML <div> element.
+ *
+ * The [DivElement] is a generic container for content and does not have any
+ * special significance. It is functionally similar to [SpanElement].
+ *
+ * The [DivElement] is a block-level element, as opposed to [SpanElement],
+ * which is an inline-level element.
+ *
+ * Example usage:
+ *
+ *     DivElement div = new DivElement();
+ *     div.text = 'Here's my new DivElem
+ *     document.body.elements.add(elem);
+ *
+ * See also:
+ *
+ * * [HTML <div> element](http://www.w3.org/TR/html-markup/div.html) from W3C.
+ * * [Block-level element](http://www.w3.org/TR/CSS2/visuren.html#block-boxes) from W3C.
+ * * [Inline-level element](http://www.w3.org/TR/CSS2/visuren.html#inline-boxes) from W3C.
+ */
 /// @domName HTMLDivElement; @docsEditable true
 class DivElement extends Element implements Element native "*HTMLDivElement" {
 
@@ -6055,6 +6076,7 @@ class Document extends Node  native "*Document"
   /// @domName Document.cookie; @docsEditable true
   String cookie;
 
+  /// Returns the [Window] associated with the document.
   /// @domName Document.defaultView; @docsEditable true
   Window get window => _convertNativeToDart_Window(this._window);
   @JSName('defaultView')
@@ -7814,7 +7836,7 @@ class Event native "*Event" {
   /// @domName Event.currentTarget; @docsEditable true
   EventTarget get currentTarget => _convertNativeToDart_EventTarget(this._currentTarget);
   @JSName('currentTarget')
-  @Creates('EventTarget|=Object') @Returns('EventTarget|=Object')
+  @Creates('Null') @Returns('EventTarget|=Object')
   final dynamic _currentTarget;
 
   /// @domName Event.defaultPrevented; @docsEditable true
@@ -7829,7 +7851,7 @@ class Event native "*Event" {
   /// @domName Event.target; @docsEditable true
   EventTarget get target => _convertNativeToDart_EventTarget(this._target);
   @JSName('target')
-  @Creates('EventTarget|=Object') @Returns('EventTarget|=Object')
+  @Creates('Node') @Returns('EventTarget|=Object')
   final dynamic _target;
 
   /// @domName Event.timeStamp; @docsEditable true
@@ -12781,6 +12803,16 @@ class MemoryInfo native "*MemoryInfo" {
 // BSD-style license that can be found in the LICENSE file.
 
 
+/**
+ * An HTML <menu> element.
+ *
+ * A <menu> element represents an unordered list of menu commands.
+ *
+ * See also:
+ *
+ *  * [Menu Element](https://developer.mozilla.org/en-US/docs/HTML/Element/menu) from MDN.
+ *  * [Menu Element](http://www.w3.org/TR/html5/the-menu-element.html#the-menu-element) from the W3C.
+ */
 /// @domName HTMLMenuElement; @docsEditable true
 class MenuElement extends Element implements Element native "*HTMLMenuElement" {
 
@@ -13023,7 +13055,7 @@ class MouseEvent extends UIEvent native "*MouseEvent" {
   /// @domName MouseEvent.relatedTarget; @docsEditable true
   EventTarget get relatedTarget => _convertNativeToDart_EventTarget(this._relatedTarget);
   @JSName('relatedTarget')
-  @Creates('EventTarget|=Object') @Returns('EventTarget|=Object')
+  @Creates('Node') @Returns('EventTarget|=Object')
   final dynamic _relatedTarget;
 
   /// @domName MouseEvent.screenX; @docsEditable true
@@ -17422,7 +17454,7 @@ class Touch native "*Touch" {
   /// @domName Touch.target; @docsEditable true
   EventTarget get target => _convertNativeToDart_EventTarget(this._target);
   @JSName('target')
-  @Creates('EventTarget|=Object') @Returns('EventTarget|=Object')
+  @Creates('Element|Document') @Returns('Element|Document')
   final dynamic _target;
 
   /// @domName Touch.webkitForce; @docsEditable true