[libcxx] [llvm] Add C++23 stacktrace (P0881R7) (PR #136528)

[Hristo Hristov via llvm-commits]

================
@@ -8,7 +8,9 @@
 //===----------------------------------------------------------------------===//
 
 export namespace std {
-#if 0
+// TODO(stacktrace23): update this when stacktrace is taken out of experimental
+#if 0 //_LIBCPP_STD_VER >= 23
----------------
Zingam wrote:

As everywhere else I think this needs to be guarded via the "experimental" macro you should implement.

https://github.com/llvm/llvm-project/pull/136528