We are going to deprecate `WITH_RUNTIME` directive. The main reason
behind this change is that `WITH_STDLIB` directive better describes
its meaning, specifically it will add kotlin stdlib to test's classpath.
Now this:
class C {
val x = something
val y by x::property
}
is *exactly* the same as this:
class C {
val x = something
val y get() = x.property
}
(plus a `getY$delegate` method)