Method reconnect

plugins/devel/kittens.cpp:269–285

                });
    }
    void reconnect(size_t pos) {
        auto b = other.lock();
        if (!b)
            return;
        // Not required to use Sig::lock because other holds strong reference to
        // Signal. But this just shows how weak_ref could be used.
        auto sig = Sig::lock(other_sig);
        if (!sig)
            return;
        con[pos] = sig->connect(b,
                [this](uint32_t) {
                    uint32_t old = callee.fetch_add(1);
                    assert(old != 0xDEDEDEDE); (void)old;
                    std::this_thread::sleep_for(delay);
                    assert(callee != 0xDEDEDEDE);
                });
    }
    void connect(color_ostream& o, shared& a, shared& b,size_t pos, uint32_t c)
    {
        out = &o;