Fixed a few more things to make Dartium build w/o --gen-interop

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

Index: tools/dom/templates/html/impl/impl_Node.darttemplate
diff --git a/tools/dom/templates/html/impl/impl_Node.darttemplate b/tools/dom/templates/html/impl/impl_Node.darttemplate
index 4ebc8bea43dc2abadaa96fa490f7e147bd353cfa..13e5588b8900a3247369b21fbad7c997112be396 100644
--- a/tools/dom/templates/html/impl/impl_Node.darttemplate
+++ b/tools/dom/templates/html/impl/impl_Node.darttemplate
@@ -291,6 +291,8 @@ $if JSINTEROP
    */
   @DomName('Node.childNodes')
   @DocsEditable()
+  @Returns('NodeList')
+  @Creates('NodeList')
   List<Node> get childNodes {
     if (_childNodes == null) {
        window.console.log(">>> construct childNodes collection/list");
@@ -305,6 +307,22 @@ $if JSINTEROP
     return _childNodes;
   }
 $else
+  $if DARTIUM
+  /**
+   * A list of this node's children.
+   *
+   * ## Other resources
+   *
+   * * [Node.childNodes]
+   * (https://developer.mozilla.org/en-US/docs/Web/API/Node.childNodes)
+   * from MDN.
+   */
+  @DomName('Node.childNodes')
+  @DocsEditable()
+  @Returns('NodeList')
+  @Creates('NodeList')
+  List<Node> get childNodes => _blink.BlinkNode.instance.childNodes_Getter_(this);
+  $else
   /**
    * A list of this node's children.
    *
@@ -320,6 +338,7 @@ $else
   @Creates('NodeList')
   final List<Node> childNodes;
 
+  $endif
 $endif
 $!MEMBERS
 }