[Bug c++/88628] lambda expression in static_assert in if constexpr is not evaluated

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88628

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
lambda is AFAIK a local class, so you need to instantiate it.  So it is more
similar to:
#include <type_traits>

template<typename T>
constexpr bool run() { return false; }

template<typename T>
T get() {
    struct S {};
    if constexpr (std::is_same_v<int, T>) return 0;
    else static_assert(run <S> (), "Lambda expression is evaluated.");
}

int main() {
    get<int>();
}
which also compiles fine (and doesn't compile if you use say int or something
non-dependent in run template-id).