Bug 317423 [Model] Get rid of the AbstractContainers like PartDescriptorContainer, ...
Some of the containers we defined where solely used by Application and our old Model-Contribution story and hence are "useless" now: * PartDescriptorContainer * BindingTableContainer Stuff I'm unsure why we have containers are: * TrimContributions * MenuContributions * ToolBarContributions but to me it looks like they are only used by Application-class so beside that I guess they are abstract, right?
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ui/menu/impl/MenuContributionsImpl.java
* <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return MenuPackageImpl.Literals.MENU_CONTRIBUTIONS;
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public List<MMenuContribution> getMenuContributions() {
		if (menuContributions == null) {
			menuContributions = new EObjectContainmentEList<MMenuContribution>(MMenuContribution.class, this, MenuPackageImpl.MENU_CONTRIBUTIONS__MENU_CONTRIBUTIONS);
		}
		return menuContributions;
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case MenuPackageImpl.MENU_CONTRIBUTIONS__MENU_CONTRIBUTIONS:
				return ((InternalEList<?>)getMenuContributions()).basicRemove(otherEnd, msgs);
		}