[Chicken-hackers] [PATCH] Less type smashing

[LemonBoy]

Hello hackers,
after debugging some code I noticed the compiler was smashing the type for some
list I had defined via `define-constant`. That's not needed since the constants
aren't exported nor they are modifiable so here's a patch to make the
scrutinizer aware of that.

One minor flaw I've found is that `define-constant` doesn't play well with the
modules since it does mark a fresh gensym'd variable that's unqualified. That's
bad since the scrutinizer queries the qualified variable name with
`variable-mark` and as a result of this mismatch we do miss the
'##compiler#constant mark.

I don't know what's the best fix for this problem so feel free to chime in :)

Cheers,
LemonBoy