Consider CoroutineScope.cancel(String, Throwable?)

[fvasco]

This is a simple extension, I found verbose to write cancel(CancellationException("socket closed", ioException))

So I propose to consider something like cancel("socket closed", ioException)

public inline fun CoroutineScope.cancel(description: String, cause: Throwable? = null) {
    cancel(CancellationException(description, cause))
}

This function is similar to deprecated: cancel(Trowable?)