[fpc-pascal] Can freepascal use negative enum values

[Marco van de Voort]

In our previous episode, Frank Church said:
> 
> type
>   anyType = ( a:= -10, b, c,d,e) so that b,c,d,e are -9 to -6 ?


Why not simply try? The above code is ok, except it is = not := (it is a
constant, not an assignment, so =)