Wild idea: allow `suspend val` and `suspend operat...

# coroutines

[louiscad]

Wild idea: allow suspend val and suspend operator fun getValue to allow by suspendLazy { ... /* a coroutine */ } delegation. I'm not sure It's a good idea though

[gildor]

https://youtrack.jetbrains.com/issue/KT-20414
https://youtrack.jetbrains.com/issue/KT-15555