#16 Convert.ToPrimitive() uses Marshal.Copy() for unicode chrs

[Barton Cline]

In Convert.ToPrimitive(), Marshal the newly created unicode buffer pointer as a character array because the cast
result = (char)Marshal.ReadInt16(op);
throws an OverflowException on negative numbers.

[Barton Cline]

Convert.ToPrimitive() uses Marshal.Copy() to get a unicode character