[libcxx-commits] [libcxx] [libc++] Add missing attribute usages to `<__memory/shared_ptr.h>` (PR #205776)

[Nikolas Klauser via libcxx-commits]

================
@@ -602,21 +602,21 @@ class _LIBCPP_SHARED_PTR_TRIVIAL_ABI shared_ptr {
 
   template <class _Vp, class = void>
   struct __get_shared_from_this {
-    using type = __nat;
+    using type _LIBCPP_NODEBUG = __nat;
   };
 
   template <class _Vp>
   struct __get_shared_from_this<_Vp, __void_t<decltype(__get_shared_from_this_impl(static_cast<_Vp*>(nullptr)))> > {
-    using type = const enable_shared_from_this<typename decltype(__get_shared_from_this_impl(
-        static_cast<_Vp*>(nullptr)))::type>*;
+    using type = _LIBCPP_NODEBUG const
----------------
philnik777 wrote:

```suggestion
    using type _LIBCPP_NODEBUG = const
```

https://github.com/llvm/llvm-project/pull/205776