[DRAGONEGG] Expose 4 functions in i386.c

[Duncan Sands]

Hi Andrew,

> I see how Jack complained about gcc becoming Linux centric but then
> draggonegg is very x86 centric. Really I think target hooks are the way
> to go and this should not be accepted at this point.

I completely agree that target hooks are the way to go.  That's not the
issue here.  The question is whether it is nonetheless ok to apply this
to the gcc-4.5 branch in order to make things easier for my users, even
though it is technically the wrong thing to do in the long term.

Ciao,

Duncan.