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/browsing/JavaBrowsingPart.java
updateTitle();
				}
			};
			fWorkingSetFilterActionGroup= new WorkingSetFilterActionGroup(fViewer, viewId, getShell(), titleUpdater);
		}
	
		
		if (fHasCustomFilter)
			fCustomFiltersActionGroup= new CustomFiltersActionGroup(this, fViewer);
	
		fToggleLinkingAction= new ToggleLinkingAction(this);
	}
	
	/**
	 * Returns the shell to use for opening dialogs.
	 * Used in this class, and in the actions.
	 */
	Shell getShell() {
		return fViewer.getControl().getShell();
	}
	protected final Display getDisplay() {
		return fViewer.getControl().getDisplay();
	}	
	/**
	 * Returns the selection provider.
	 */
	ISelectionProvider getSelectionProvider() {
		return fViewer;
	}
	/**