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.model.workbench/src/org/eclipse/e4/ui/model/application/ApplicationPackage.java
* The feature id for the '<em><b>Tooltip</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MTOOL_BAR_ITEM__TOOLTIP = MHANDLED_ITEM__TOOLTIP;
	/**
	 * The feature id for the '<em><b>Command</b></em>' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MTOOL_BAR_ITEM__COMMAND = MHANDLED_ITEM__COMMAND;
	/**
	 * The feature id for the '<em><b>Menu</b></em>' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MTOOL_BAR_ITEM__MENU = MHANDLED_ITEM__MENU;
	/**
	 * The number of structural features of the '<em>MTool Bar Item</em>' class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */