Compound types in enums are unsupported (from @vit9696)

[d0c-s4vage]

courtesy of @vit9696 at d0c-s4vage/pfp#24:

Multiword types like "unsigned short" or "unsigned char" are causing a parse error when used in enum declarations. E. g.

enum <unsigned short> MY_ENUM {
    VAL_1 = 0,
    VAL_2 = 1
};

If one creates a typedef and replaces the type by a single word, it will be ok. I. e.

typedef unsigned short u16;
enum <u16> MY_ENUM {
    VAL_1 = 0,
    VAL_2 = 1
};