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/workbench/WorkbenchPackage.java
* <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MPERSPECTIVE__POLICY = ApplicationPackage.MITEM_PART__POLICY;
	/**
	 * The feature id for the '<em><b>Children</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MPERSPECTIVE__CHILDREN = ApplicationPackage.MITEM_PART__CHILDREN;
	/**
	 * The feature id for the '<em><b>Active Child</b></em>' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MPERSPECTIVE__ACTIVE_CHILD = ApplicationPackage.MITEM_PART__ACTIVE_CHILD;
	/**
	 * The feature id for the '<em><b>Handlers</b></em>' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MPERSPECTIVE__HANDLERS = ApplicationPackage.MITEM_PART__HANDLERS;
	/**