ConstantsScraper: Using --with-type with a constant that has a shift produces bad code

[dpaoliello]

Given a constant that is calculated with a shift:

#define MY_CONST (1<<4)

Then trying to use --with-type with this constant (e.g., --with-type=MY_CONST=ushort), constants scraper will produce the following code:

public const ushort MY_CONST = 1u<<4;

Which is invalid:

error CS0266: Cannot implicitly convert type 'uint' to 'ushort'. An explicit conversion exists (are you missing a cast?)