Fix some build breaks.

tools/dom/templates/html/impl/impl_HTMLDocument.darttemplate

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 part of $LIBRARYNAME;
 
 $(ANNOTATIONS)$(NATIVESPEC)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS {
 $!MEMBERS
@@ skipping 406 matching lines @@
         $this.attributeChanged(attrName, oldVal, newVal);
       });
       elemProto['attachedCallback'] = new js.JsFunction.withThis(($this) {
         $this.attached();
       });
       elemProto['detachedCallback'] = new js.JsFunction.withThis(($this) {
         $this.detached();
       });
       // document.registerElement('x-foo', {prototype: elemProto, extends: extendsTag});
       var jsMap = new js.JsObject.jsify({'prototype': elemProto, 'extends': extendsTag});
-      js.Jsnative.callMethod(js.JsNative.getProperty(js.context, 'document'), 'registerElement', [tag, jsMap]);
+      js.JsNative.callMethod(js.JsNative.getProperty(js.context, 'document'), 'registerElement', [tag, jsMap]);
     }
 $endif
   }
 
   /** *Deprecated*: use [registerElement] instead. */
   @deprecated
   @Experimental()
   void register(String tag, Type customElementClass, {String extendsTag}) {
     return registerElement(tag, customElementClass, extendsTag: extendsTag);
   }
@@ skipping 48 matching lines @@
   /// parameter must be provided.
   @Experimental()
   ElementUpgrader createElementUpgrader(Type type, {String extendsTag}) {
 $if DART2JS
     return new _JSElementUpgrader(this, type, extendsTag);
 $else
     return new _VMElementUpgrader(this, type, extendsTag);
 $endif
   }
 }