return c1.getDisplayString().compareTo(c2.getDisplayString());
return c1.getDisplayString().compareToIgnoreCase(c2.getDisplayString());
		public int compare(Object o1, Object o2) {			ICompletionProposal c1= (ICompletionProposal) o1;			ICompletionProposal c2= (ICompletionProposal) o2;			return c1.getDisplayString().compareTo(c2.getDisplayString());		}