[svn r104] TONS OF FIXES. Split up declaration, constant initializer gen and definition for globals, structs, classes and functions. Improved ClassInfo support (not complete), not in vtable yet. Fixed a bunch of forward reference problems. Much more. Major commit! :)

module bug4;

int func(int i)
{
    i += 2;
    i -= 3;
    return i;
}

void main()
{
    assert(func(4) == 3);
}