[libcxx-commits] [libcxx] [libc++] Collapse `optional<T&>` inheritance hierarchy (PR #215286)

[A. Jiang via libcxx-commits]

================
@@ -235,7 +190,7 @@ class optional<_Tp&> : public __optional_ref_iterator_base<_Tp&> {
 
   constexpr ~optional() = default;
 
-  using __base::__get;
+  _LIBCPP_HIDE_FROM_ABI constexpr value_type& __get() const noexcept { return *__value_; }
----------------
frederick-vs-ja wrote:

I think we can simplify `this->__get()`. But it seems that `__get()` is still meaningful for communication between different `optional`s.

https://github.com/llvm/llvm-project/pull/215286