`Flow.collectLatest` is error-prone because of no `CoroutineScope`

[dovchinnikov]

launch {
  aFlow.collectLatest {
    async { 
      // uses CoroutineScope from launch => not cancelled when collectLatest block is cancelled
    }
  }
}

It should not be possible to use launch/async/etc inside collectLatest {} (e.g. by means of @DslMarker) OR the block should get CoroutineScope receiver.

Easy to forget workaround:

launch {
  aFlow.collectLatest {
    coroutineScope {
      async {
        // ...
      }  
    }
  }
}

[janselv]

A similar workaround using current collection context

launch {
  aFlow.collectLatest {
    async(currentCoroutineContext()) {  }
  }
}