Bug 161425 [Viewers] TableTreeViewer => EditingSupport broken
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TableTreeViewer.java
}
	/*
	 * (non-Javadoc) Method declared on AbstractTreeViewer.
	 */
	protected boolean getExpanded(Item item) {
		return ((TableTreeItem) item).getExpanded();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.ColumnViewer#getItemAt(org.eclipse.swt.graphics.Point)
	 */
	protected Item getItemAt(Point p) {
		return getTableTree().getTable().getItem(p);
	}
	/*
	 * (non-Javadoc) Method declared on AbstractTreeViewer.
	 */
	protected int getItemCount(Control widget) {
		return ((TableTree) widget).getItemCount();
	}
	/*
	 * (non-Javadoc) Method declared on AbstractTreeViewer.
	 */
	protected int getItemCount(Item item) {
		return ((TableTreeItem) item).getItemCount();
	}
	/*
	 * (non-Javadoc) Method declared on AbstractTreeViewer.
	 */