Function track_copy_created

tests/constructor_stats.h:219–221

// constructor stats values for later inspection.
template <class T>
void track_copy_created(T *inst) {
    ConstructorStats::get<T>().copy_created(inst);
}
template <class T>
void track_move_created(T *inst) {
    ConstructorStats::get<T>().move_created(inst);