Bug 247682

Generic template is renamed w/o its specializations

When renaming a generic template, its specializations are not renamed.
This leads to incompilable code

template <int> class spec_templ {};

template <> class spec_templ<1> {
    public:
    spec_templ<1>() {
    }
    spec_templ(int) {
        
    }
    int foo() {
        return 1;
    }
};

template <> class spec_templ<2> {
    public:
    spec_templ(int) {
        
    }
    spec_templ<2>() {
    }
    int foo() {
        return 2;
    }
};