Bug 119827 Window working set has strange name in type hierarchy view
Build id: I20051206-1200 Don't know if this is JDT/UI or Platform/UI but when the window working set is selected a strange name is presented in the title bar of the view (see attached screen shot)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
for (int i= 0; i < fViewActions.length; i++) {
			ToggleViewAction action= fViewActions[i];
			action.setChecked(fCurrentViewerIndex == action.getViewerIndex());
		}
	}
	/**
	 * Gets the current active view index.
	 * @return The index of the current viewer
	 */		
	public int getViewIndex() {
		return fCurrentViewerIndex;
	}
	
	private TypeHierarchyViewer getCurrentViewer() {
		return fAllViewers[fCurrentViewerIndex];
	}
	/**
	 * called from EnableMemberFilterAction.
	 * Must be called after creation of the view part.
	 * @param on <code>true</code> to turn the member filter on
	 */	
	public void enableMemberFilter(boolean on) {
		if (on != fIsEnableMemberFilter) {
			fIsEnableMemberFilter= on;
			if (!on) {
				IType methodViewerInput= (IType) fMethodsViewer.getInput();
				setMemberFilter(null);
				updateHierarchyViewer(true);
				updateTitle();