Add workaround for exception in RefactoringService.FixIndexerExpression

src/Main/Base/Project/Src/Services/RefactoringService/RefactoringService.cs

@@ -354,7 +354,13 @@ namespace ICSharpCode.SharpDevelop.Refactoring
 				// strip the index from the expression to resolve the underlying expression
 				string newExpr = expressionFinder.RemoveLastPart(expr.Expression);
 				if (newExpr.Length >= expr.Expression.Length) {
-					throw new ApplicationException("new expression must be shorter than old expression");
+					//throw new ApplicationException("new expression must be shorter than old expression");
+					
+					// If the exception finder doesn't work as expected, we just pretend this wasn't an indexer.
+					// This method of 'Find References' will become obsolete with the new NRefactory anyways,
+					// so since we likely won't spend time to track down the EF bug, we just ignore it and accept
+					// that 'find references' might sometimes miss some results.
+					return false;
 				}
 				expr.Expression = newExpr;
 				return true;