Added two more special purpose calls, to improve flatten performance from

rotten to ok.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@3809 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/avm/LayeredDirectoryNode.java

@@ -59,6 +59,12 @@ public interface LayeredDirectoryNode extends DirectoryNode, Layered
      */
     public void uncover(Lookup lPath, String name);
     
+    /**
+     * Remove name without leaving behind a deleted node.
+     * @param name The name of the child to flatten.
+     */
+    public void flatten(String name);
+    
     /**
      * Set the indirection.
      * @param indirection