Another try at appendHtml and insertAdjacentHtml should be consistently sanitized

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 ba0ac0183ec6f36d68271a0307f805c6cc2e2d12..b8035b32c401a0356b6e81cc3e5b5ffe7f9eca1b 100644
--- a/sdk/lib/svg/dart2js/svg_dart2js.dart
+++ b/sdk/lib/svg/dart2js/svg_dart2js.dart
@@ -4858,11 +4858,12 @@ class SvgElement extends Element implements GlobalEventHandlers {
   }
 
   @DomName('Element.insertAdjacentHTML')
-  void insertAdjacentHtml(String where, String text) {
+  void insertAdjacentHtml(String where, String text, {NodeValidator validator,
+      NodeTreeSanitizer treeSanitizer}) {
     throw new UnsupportedError("Cannot invoke insertAdjacentHtml on SVG.");
   }
 
-  @DomName('Element.insertAdjacentHTML')
+  @DomName('Element.insertAdjacentElement')
   Element insertAdjacentElement(String where, Element element) {
     throw new UnsupportedError("Cannot invoke insertAdjacentElement on SVG.");
   }