Add annotations on native fields and methods

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 6638fde0711399f97b6794e132dbf3b1650da1b2..84dd747398025492fa08d65a4e734d86b7b71038 100644
--- a/sdk/lib/svg/dart2js/svg_dart2js.dart
+++ b/sdk/lib/svg/dart2js/svg_dart2js.dart
@@ -1105,6 +1105,7 @@ class ElementInstance extends EventTarget native "*SVGElementInstance" {
     new ElementInstanceEvents(this);
 
   /** @domName SVGElementInstance.childNodes */
+  @Returns('_ElementInstanceList') @Creates('_ElementInstanceList')
   final List<ElementInstance> childNodes;
 
   /** @domName SVGElementInstance.correspondingElement */
@@ -5168,9 +5169,11 @@ class SvgSvgElement extends SvgElement implements FitToViewBox, Tests, Stylable,
   Element getElementById(String elementId) native;
 
   /** @domName SVGSVGElement.getEnclosureList */
+  @Returns('_NodeList') @Creates('_NodeList')
   List<Node> getEnclosureList(Rect rect, SvgElement referenceElement) native;
 
   /** @domName SVGSVGElement.getIntersectionList */
+  @Returns('_NodeList') @Creates('_NodeList')
   List<Node> getIntersectionList(Rect rect, SvgElement referenceElement) native;
 
   /** @domName SVGSVGElement.pauseAnimations */