Bug 279452 [Compatibility] Parameterized command mechanism support
Parameterized commands like showView need to be able to access their parameters (like the view ID) PW
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/workbench/ui/renderers/swt/HandledContributionItem.java
* .Menu, int)
	 */
	@Override
	public void fill(Menu menu, int index) {
		if (model == null) {
			return;
		}
		if (widget != null) {
			return;
		}
		int style = SWT.PUSH;
		MenuItem item = null;
		if (index >= 0) {
			item = new MenuItem(menu, style, index);
		} else {
			item = new MenuItem(menu, style);
		}
		item.setData(this);
		item.addListener(SWT.Dispose, getItemListener());
		item.addListener(SWT.Selection, getItemListener());
		widget = item;
		update(null);
		updateIcons();
		addModelListener();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.jface.action.ContributionItem#fill(org.eclipse.swt.widgets