static IField GetBackingStoreField (MonoDevelop.Refactoring.RefactoringOptions options, string backingStoreName, out int backinStoreStart, out int backinStoreEnd)
		{
			TextEditorData data = options.GetTextEditorData ();
			MemberResolveResult resolveResult = options.ResolveResult as MemberResolveResult;
			IProperty property = resolveResult.ResolvedMember as IProperty;
			
			List<IMember> members = property.DeclaringType.SearchMember (backingStoreName, true);
			IMember backingStore = null;
			backinStoreStart = 0;
			backinStoreEnd = 0;
			foreach (IMember member in members) {
				if (member.MemberType == MemberType.Field) {
					DocumentLocation location = member.Location.ToDocumentLocation (data.Document);
					LineSegment line = data.Document.GetLine (location.Line);
					backinStoreStart = line.Offset;
					backinStoreEnd = line.EndOffset;
					backingStore = member;
					break;
				}
			}
			return backingStore as IField;
		}