Bug 320171 [Model] Use real Java-References in the Binding-Model-Elements
Currently they BindingTable is referencing a BindingContext using an ID. To me it looks like BindingTable is a child of BindingContext and then doesn't need the ID-Reference any more
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ui/impl/UIElementImpl.java
*/
	protected MExpression visibleWhen;
	/**
	 * The default value of the '{@link #getAccessibilityPhrase() <em>Accessibility Phrase</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getAccessibilityPhrase()
	 * @generated
	 * @ordered
	 */
	protected static final String ACCESSIBILITY_PHRASE_EDEFAULT = null;
	/**
	 * The cached value of the '{@link #getAccessibilityPhrase() <em>Accessibility Phrase</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getAccessibilityPhrase()
	 * @generated
	 * @ordered
	 */
	protected String accessibilityPhrase = ACCESSIBILITY_PHRASE_EDEFAULT;
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected UIElementImpl() {
		super();
	}
	/**
	 * <!-- begin-user-doc -->