I'm sure we discussed it but I can't find it back quickly apparently; but there's something odd I believe should work: currently nothing is suggested for namespaces.
E.g., imagine this C++ file:

namespace Ns {
    class Cls {
        public:
            static int f() { return 42; }
    };
};

int main(void)
{
    return Ns::Cls::f();
}

Nothing pops after Ns::, but it works for Cls::.

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