Fix dart2js type warnings

sdk/lib/svg/dart2js/svg_dart2js.dart

Index: sdk/lib/svg/dart2js/svg_dart2js.dart
diff --git a/sdk/lib/svg/dart2js/svg_dart2js.dart b/sdk/lib/svg/dart2js/svg_dart2js.dart
index 2c276251d4e5ac672cdea9b669e0400eb5699a78..a7ca1482aeec2dc93f6ca5271bf5cee63c118412 100644
--- a/sdk/lib/svg/dart2js/svg_dart2js.dart
+++ b/sdk/lib/svg/dart2js/svg_dart2js.dart
@@ -5834,6 +5834,23 @@ class SvgElement extends Element implements GlobalEventHandlers native "SVGEleme
   @Experimental() // untriaged
   String xmlspace;
 
+  // From EventTarget
+
+  @DomName('SVGElement.addEventListener')
+  @DocsEditable()
+  @Experimental() // untriaged
+  void addEventListener(String type, EventListener listener, [bool useCapture]) native;
+
+  @DomName('SVGElement.dispatchEvent')
+  @DocsEditable()
+  @Experimental() // untriaged
+  bool dispatchEvent(Event event) native;
+
+  @DomName('SVGElement.removeEventListener')
+  @DocsEditable()
+  @Experimental() // untriaged
+  void removeEventListener(String type, EventListener listener, [bool useCapture]) native;
+
   @DomName('SVGElement.onabort')
   @DocsEditable()
   @Experimental() // untriaged