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kotlinlang

Hi all

I noticed that I'm not able to call co-routine methods within a flatMapped arrow Either. eg. Something like

```someEither.flatMap { someCoroutineMethod() &lt;- // this causes an error - "Suspension functions can be called only within coroutine body" }```
If we were to make flatMap an inline function (ie.
``` inline fun &lt;A, B, C&gt; EitherOf&lt;A, B&gt;.flatMap(f: (B) -&gt; Either&lt;A, C&gt;): Either&lt;A, C&gt; = ...```
That would allow it to be called. This is similar to the .fold we have on Either. Is there a reason we shouldn't make this change?

What vesion are you using? In the most recent is possible call suspend functions from flatmap, map...