Destructor Tombstones

stl/inc/any

@@ -158,6 +158,14 @@ public:
 
     ~any() noexcept {
         reset();
+
+#if _MSVC_STL_DESTRUCTOR_TOMBSTONES
+        // _Small mode will prevent the most misuse, as the pseudo-vtable will be used for _Destroy, _Copy, and _Move.
+        // _Big mode wouldn't use the pseudo-vtable for _Move, and _Trivial mode doesn't have a pseudo-vtable at all.
+        const uintptr_t _Tombstone_value{_MSVC_STL_UINTPTR_TOMBSTONE_VALUE};
+        _Storage._SmallStorage._RTTI = reinterpret_cast<const _Any_small_RTTI*>(_Tombstone_value);
+        _Storage._TypeData = (_Tombstone_value & ~_Rep_mask) | static_cast<uintptr_t>(_Any_representation::_Small);
+#endif // _MSVC_STL_DESTRUCTOR_TOMBSTONES
     }
 
     // Assignment [any.assign]