gistfile1.cs

        private static bool IsSimpleBinaryOperator(SyntaxKind kind)
        {
            switch (kind)
            {
                case SyntaxKind.AddExpression:
                case SyntaxKind.MultiplyExpression:
                case SyntaxKind.SubtractExpression:
                // ... more cases skipped ...
                case SyntaxKind.RightShiftExpression:
                    return true;
            }
            return false;
        }