genffi: cparse `(*fun)` tweak.
genffi: cparse `(*fun)` tweak.

The fix for zlib broke everything else.
Explicitly check for the difference between `x(int,int)` and
`(*x)(int,int)` and emit the correct type.

samrushing/irken-compiler,samrushing/irken-compiler,samrushing/irken-compiler,samrushing/irken-compiler