Bug 10236 Enable decorators in Type hierarchy view
See the packages view for how to do this.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/MethodsViewer.java
ContextMenuGroup.add(menu, fStandardGroups, this);
	}
	/**
	 * Fills up the tool bar with items for the method viewer
	 * Should be called by the creator of the tool bar
	 */
	public void contributeToToolBar(ToolBarManager tbm) {
		tbm.add(fShowInheritedMembersAction);
		tbm.add(new Separator());
		tbm.add(fFilterActions[0]); 
		tbm.add(fFilterActions[1]); 
		tbm.add(fFilterActions[2]); 
	}
	/*
	 * @see StructuredViewer#handleInvalidSelection(ISelection, ISelection)
	 */
	protected void handleInvalidSelection(ISelection invalidSelection, ISelection newSelection) {
		
		
		List oldSelections= SelectionUtil.toList(invalidSelection);
		List newSelections= SelectionUtil.toList(newSelection);
		if (!oldSelections.isEmpty()) {
			ArrayList newSelectionElements= new ArrayList(newSelections);
			try {
				Object[] currElements= getFilteredChildren(getInput());
				for (int i= 0; i < oldSelections.size(); i++) {
					Object curr= oldSelections.get(i);
					if (curr instanceof IMethod && !newSelections.contains(curr)) {
						IMethod method= (IMethod) curr;
						if (method.exists()) {