Use std:: coroutines for compatibility with C++20 and Clang 17 (#12887)

* Use std:: coroutines for compatibility with C++20 and Clang 17

Newer versions of Clang do not support mixing C++20 and std::experimental coroutines. In such cases, we should prefer the coroutine types declared in the std:: namespace. Fortunately, there is already a helper namespace for this in winrt/base.h.

* Change files

* yarn format

change/react-native-windows-7a71f7ee-8200-414f-a2a3-21c273419000.json

@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Use std:: coroutines for compatibility with C++20 and Clang 17",
+  "packageName": "react-native-windows",
+  "email": "ericroz@meta.com",
+  "dependentChangeType": "patch"
+}

vnext/Shared/Networking/WinRTWebSocketResource.cpp

@@ -64,9 +64,9 @@ auto resume_in_queue(const Mso::DispatchQueue &queue) noexcept {
 
     void await_resume() const noexcept {}
 
-    void await_suspend(std::experimental::coroutine_handle<> resume) noexcept {
+    void await_suspend(winrt::impl::coroutine_handle<> resume) noexcept {
       m_callback = [context = resume.address()]() noexcept {
-        std::experimental::coroutine_handle<>::from_address(context)();
+        winrt::impl::coroutine_handle<>::from_address(context)();
       };
       m_queue.Post(std::move(m_callback));
     }

vnext/Shared/Utils/CppWinrtLessExceptions.h

@@ -35,15 +35,15 @@ struct lessthrow_await_adapter {
     return async.Status() == winrt::Windows::Foundation::AsyncStatus::Completed;
   }
 
-  void await_suspend(std::experimental::coroutine_handle<> handle) const {
+  void await_suspend(winrt::impl::coroutine_handle<> handle) const {
     auto context = winrt::capture<winrt::impl::IContextCallback>(WINRT_IMPL_CoGetObjectContext);
 
     async.Completed([handle, context = std::move(context)](auto const &, winrt::Windows::Foundation::AsyncStatus) {
       winrt::impl::com_callback_args args{};
       args.data = handle.address();
 
       auto callback = [](winrt::impl::com_callback_args *args) noexcept -> int32_t {
-        std::experimental::coroutine_handle<>::from_address(args->data)();
+        winrt::impl::coroutine_handle<>::from_address(args->data)();
         return S_OK;
       };