Missing Autocompletion on enums

As titled

If I have

`enum class State { ALLOC, .. }`

After I type `State.` I don't get any (right) suggestions

If I type `State.A` I can see some enumerators plus a lot of other stuff

```kotlin
[4] import slurm.State.*
[5] sinfo {
...states( State.ALLOC
ALLOC AbstractList AbstractMutableMap AnnotationRetention Array AssertionError
ALLOCATED AbstractMap AbstractMutableSet AnnotationTarget ArrayDeque AutoCloseable
AS_SAFE AbstractMethodError AbstractSet Any ArrayIndexOutOfBoundsException AutoCloseable {
AbstractCollection AbstractMutableCollection AccessDeniedException Appendable ArrayList
AbstractIterator AbstractMutableList Annotation ArithmeticException ArrayStoreException
```

Reproduce the report in the Kotlin interactive shell with the shown State enum and completion inputs State. and State.A. Trace the shell's completion entry point for qualified enum references; done when State. suggests the enum entries and State.A no longer includes unrelated symbols.

Written by the indexing model from the issue text.