Bug 33216 Source actions in context menu on types inconsistency
1) select a type in the package explorer 2) bring up the context menu ->the source actions are shown in-line and the menu is huge. Given that we show a source submenu in other parts (e.g. the editor) and do the same for the refactoring actions we should also move the source actions into a submenu.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
private TypeHierarchyLifeCycle fHierarchyLifeCycle;
	private ITypeHierarchyLifeCycleListener fTypeHierarchyLifeCycleListener;
	
	private IPropertyChangeListener fPropertyChangeListener;
		
	private SelectionProviderMediator fSelectionProviderMediator;
	private ISelectionChangedListener fSelectionChangedListener;
	private IPartListener2 fPartListener;
	private int fCurrentOrientation;
	private boolean fLinkingEnabled;
	
	private boolean fIsVisible;
	private boolean fNeedRefresh;	
	private boolean fIsEnableMemberFilter;
	
	private int fCurrentViewerIndex;
	private TypeHierarchyViewer[] fAllViewers;
	
	private MethodsViewer fMethodsViewer;	
	
	private SashForm fTypeMethodsSplitter;
	private PageBook fViewerbook;
	private PageBook fPagebook;
	
	private Label fNoHierarchyShownLabel;
	private Label fEmptyTypesViewer;
	
	private ViewForm fTypeViewerViewForm;
	private ViewForm fMethodViewerViewForm;