[libcxx-commits] [libcxx] [libc++] Simplify a bunch of noexcept specifications (PR #166397)

[Louis Dionne via libcxx-commits]

================
@@ -915,15 +897,7 @@ public:
   }
 #  endif
 
-  _LIBCPP_CONSTEXPR_SINCE_CXX26 _LIBCPP_HIDE_FROM_ABI void swap(list& __c)
-#  if _LIBCPP_STD_VER >= 14
-      _NOEXCEPT
-#  else
-      _NOEXCEPT_(!__node_alloc_traits::propagate_on_container_swap::value || __is_nothrow_swappable_v<__node_allocator>)
-#  endif
-  {
-    __base::swap(__c);
-  }
+  _LIBCPP_CONSTEXPR_SINCE_CXX26 _LIBCPP_HIDE_FROM_ABI void swap(list& __c) _NOEXCEPT { __base::swap(__c); }
----------------
ldionne wrote:

```suggestion
  _LIBCPP_CONSTEXPR_SINCE_CXX26 _LIBCPP_HIDE_FROM_ABI void swap(list& __c) _NOEXCEPT { __base::swap(__c); } // strengthened(never throws)
```

Per https://github.com/llvm/llvm-project/pull/203869

https://github.com/llvm/llvm-project/pull/166397