Added back a bunch of static's to gen/classes.cpp, it's not superfluous, it makes the functions internal to the compilation unit, and we don't call them anywhere else.

module bug49;

struct S
{
    int i;
    long l;
}

void main()
{
    S s;
    s.i = 0x__FFFF_FF00;
    s.l = 0xFF00FF_FF00;
    s.i &= s.l;
}