Bug 331010 Track Model-Element contributors
We need to track which bundle contributed an model element to e.g. look up translations in the right package
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ui/advanced/impl/AdvancedPackageImpl.java
* @ordered
	 */
	public static final int AREA_FEATURE_COUNT = BasicPackageImpl.PART_SASH_CONTAINER_FEATURE_COUNT + 6;
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	private EClass placeholderEClass = null;
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	private EClass perspectiveEClass = null;
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	private EClass perspectiveStackEClass = null;
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	private EClass areaEClass = null;
	/**
	 * Creates an instance of the model <b>Package</b>, registered with
	 * {@link org.eclipse.emf.ecore.EPackage.Registry EPackage.Registry} by the package