[libcxx-commits] [clang] [libcxx] [llvm] Reapply "[Clang] Implement resolution for CWG1835 (#92957)" (PR #98547)

[Krystian Stasiowski via libcxx-commits]

sdkrystian wrote:

> Independent of the other issues, it looks like this also re-introduces #98878

@nico #98878 still occurs without this patch applied:
```cpp
struct A 
{
    void f();
};

template<typename T>
int g(T t)
{
    using U = A; // clang 18.1: 'warning: unused type alias 'U''
    t.U::f();
}
```

https://github.com/llvm/llvm-project/pull/98547