Support suspend property https://youtrack.jetbrains.com/issue/KT-15555

[chachako]

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

var property: Any
  get() = suspendGetter {
    // suspended
  }
  set(value) = suspendSetter {
    // suspended
  }

Diagnosis:

@SuspendGetter
@SuspendSetter