VB -> C#: Avoid creating code blocks for each case when converting Select Case

[circular17]

When converting a Select Case statement, each outcome is wrapped in braces, creating a code block. This adds unnecessary indentation.

For example:

    Private Shared Function d1mach(i As Integer) As Double
        Select Case i
            Case 1
                Return 2.2250738585072014E-308 ' the smallest positive magnitude.
            Case 2
                Return Double.MaxValu ' the largest magnitude.
        End Select
        Return 0
    End Function

Is converted as:

        private static double d1mach(int i)
        {
            switch (i)
            {
                case 1:
                    {
                        return 2.2250738585072014E-308d; // the smallest positive magnitude.
                    }
                case 2:
                    {
                        return double.MaxValue; // the largest magnitude.
                    }
            }
            return 0d;
        }

Proposed solution
When no variable is created in the case branch, avoid creating a code block. The output code would be:

        private static double d1mach(int i)
        {
            switch (i)
            {
                case 1:
                    return 2.2250738585072014E-308d; // the smallest positive magnitude.
                case 2:
                    return double.MaxValue; // the largest magnitude.
            }
            return 0d;
        }