[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 neg;

void main()
{
    int i = 32;
    long l = 55;
    float f = 23;
    double d = 4;
    assert(-i == -32);
    assert(-l == -55);
    assert(-f == -23);
    assert(-d == -4);
}