Bug 96137 (regression) Type hierarchy displays its name in the content area when empty
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
internalSelectType(root, true);
			updateMethodViewer(root);
			updateToolbarButtons();
			updateTitle();
			enableMemberFilter(false);
			fPagebook.showPage(fTypeMethodsSplitter);
			fSelectInEditor= true;
		}
	}
	
	private void processOutstandingEvents() {
		Display display= getDisplay();
		if (display != null && !display.isDisposed())
			display.update();
	}	
	
	private void clearInput() {
		fInputElement= null;
		fHierarchyLifeCycle.freeHierarchy();
		
		updateHierarchyViewer(false);
		updateToolbarButtons();
	}
	/*
	 * @see IWorbenchPart#setFocus
	 */	
	public void setFocus() {
		fPagebook.setFocus();
	}
	/*