Now, `runSuspending` is a simple builder you might...

# coroutines

[elizarov]

Now, runSuspending is a simple builder you might say, but there are bunch more complicated ones, and I don't want to cut-and-paste all of them. Especially, if you take into an account a variety of futures/promises implementation. There will be a builder for each one of them! I want to compose any builder with any context.