[svn r119] Added the monitor data field that comes after the vtable pointer to all classes. Represented as a void* initialized to zero.

module complex3;

void main()
{
    cfloat c1 = 1f + 0i;
    cfloat c2 = 0f + 0i;
    c2 += 1f + 0i;
    //assert(c1 == c2);
}