This CL contains all of the changes for splitting off all of the native

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

 // Copyright (c) 2013, 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.
 
 part of $LIBRARYNAME;
 
+$!TOPLEVEL
+
 @DocsEditable()
 $(ANNOTATIONS)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
 
   @DomName('HTMLTableSectionElement.rows')
   List<TableRowElement> get rows =>
     new _WrappedList<TableRowElement>(_rows);
 
   TableRowElement addRow() {
     return insertRow(-1);
   }
@@ skipping 10 matching lines @@
     // IE9 workaround which does not support innerHTML on Table elements.
     var fragment = new DocumentFragment();
     var section = new TableElement().createFragment(
         html, validator: validator, treeSanitizer: treeSanitizer).nodes.single;
     fragment.nodes.addAll(section.nodes);
     return fragment;
   }
 $endif
 
 $!MEMBERS}