Bug 126061 [Viewers] Need to document that virtual tables and trees ignore sorters and filters
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TreeViewer.java
TreeItem treeItem = (TreeItem)items[i];
			treeItem.setItemCount(count);
		}		
	}
	/**
	 * For a TreeViewer with a tree with the VIRTUAL style bit set, replace the
	 * given parent's child at index with the given element. If the given parent
	 * is this viewer's input, this will replace the root element at the given
	 * index.
	 * <p>
	 * This method should be called by implementers of ILazyTreeContentProvider
	 * to populate this viewer.
	 * </p>
	 * @param parent the parent of the element that should be updated
	 * @param index the index in the parent's children
	 * @param element the new element
	 * 
	 * @see #setChildCount(Object, int)
	 * @see ILazyTreeContentProvider
     * 
	 * <strong>EXPERIMENTAL</strong>. This class or interface has been added as
	 * part of a work in progress. There is no guarantee that this API will remain
	 * unchanged during the 3.2 release cycle. Please do not use this API without
	 * consulting with the Platform/UI team.
	 * </p>
     * 
	 * @since 3.2
	 */
	public void replace(Object parent, int index, Object element) {
		if(parent.equals(getInput())) {