P1430 First-class symmetric coroutines in C++

[jensmaurer]

P1430R0 First-class symmetric coroutines in C++ (Mihail Mihaylov, Vassil Vassilev)

[wg21bot]

P1430R1 First-class symmetric coroutines in C++ (Mihail Mihaylov, Vassil Vassilev)

[jfbastien]

I'm going to assume this isn't active anymore, given the status of coroutines in C++20. We might reverse if NB comments ask us to.