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/descriptor/basic/impl/PartDescriptorImpl.java
public void setToolbar(MToolBar newToolbar) {
		if (newToolbar != toolbar) {
			NotificationChain msgs = null;
			if (toolbar != null)
				msgs = ((InternalEObject)toolbar).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - BasicPackageImpl.PART_DESCRIPTOR__TOOLBAR, null, msgs);
			if (newToolbar != null)
				msgs = ((InternalEObject)newToolbar).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - BasicPackageImpl.PART_DESCRIPTOR__TOOLBAR, null, msgs);
			msgs = basicSetToolbar(newToolbar, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, BasicPackageImpl.PART_DESCRIPTOR__TOOLBAR, newToolbar, newToolbar));
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isCloseable() {
		return closeable;
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setCloseable(boolean newCloseable) {
		boolean oldCloseable = closeable;
		closeable = newCloseable;
		if (eNotificationRequired())