[clang] [coroutines] Introduce [[clang::coro_return_type]] and [[clang::coro_wrapper]] (PR #71945)

[Utkarsh Saxena via cfe-commits]

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@@ -300,6 +300,11 @@ Attribute Changes in Clang
   to reduce the size of the destroy functions for coroutines which are known to
   be destroyed after having reached the final suspend point.
 
+- Clang now introduced ``[[clang::coro_return_type]]`` and ``[[clang::coro_wrapper]]``
+  attributes. A function returning a type marked with ``[[clang::coro_return_type]]``
+  should be a coroutine. A non-coroutine function marked with ``[[clang::coro_wrapper]]``
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usx95 wrote:

acknowledged.

https://github.com/llvm/llvm-project/pull/71945