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/MenuFactoryImpl.java
* <!-- end-user-doc -->
	 * @generated
	 */
	public MMenuContribution createMenuContribution() {
		MenuContributionImpl menuContribution = new MenuContributionImpl();
		return menuContribution;
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public MPopupMenu createPopupMenu() {
		PopupMenuImpl popupMenu = new PopupMenuImpl();
		return popupMenu;
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public MDirectMenuItem createDirectMenuItem() {
		DirectMenuItemImpl directMenuItem = new DirectMenuItemImpl();
		return directMenuItem;
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */