compiler/testData/repl/classes/enumEntrySubclass.repl

>>> enum class E {
...     FIRST {
...         override fun foo() = "HELLO"
...     },
...     SECOND {
...         override fun foo() = "WORLD"
...     };
...     open fun foo() = "E"
... }
>>> E.FIRST.foo() + " " + E.SECOND.foo()
HELLO WORLD