Skip another test that fails in WebKit2

* platform/mac-wk2/Skipped:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@71126 268f45cc-cd09-0410-ab3c-d52691b4dbfc

LayoutTests/ChangeLog

+2010-11-02  Adam Roben  <aroben@apple.com>
+
+        Skip another test that fails in WebKit2
+
+        * platform/mac-wk2/Skipped:
+
 2010-11-02  Adam Roben  <aroben@apple.com>
         Update Windows results after r71043

LayoutTests/platform/mac-wk2/Skipped

@@ -1838,6 +1838,7 @@ printing/page-rule-selection.html
 # WebKitTestRunner needs layoutTestController.hasSpellingMarker
 editing/spelling/design-mode-spellcheck-off.html
 editing/spelling/spellcheck-attribute.html
+editing/spelling/spelling-attribute-at-child.html
 editing/spelling/spelling-attribute-change.html
 editing/spelling/spelling-linebreak.html