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.
The previous way of getting them either via getter or setter failed on
Java properties which only have a backing field. Now that IrProperty has
overriddenSymbols (after 53c1de172f), it makes sense to use it directly
instead. Use it only in SyntheticAccessorLowering though to avoid
breaking Kotlin/Native (see KT-47019).
#KT-46900 Fixed
vladislav.grechko