We are going to deprecate `WITH_RUNTIME` directive in kotlin test
infrastructure. 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.
GitOrigin-RevId: 73a702b404ed63e728ad85fa750d5d87ce5bc7f4
Can be used for implementing interfaces / abstract classes / sealed classes or extending open classes
GitOrigin-RevId: 1d10d1837724d6315da77cf67ebeb41615386705