Incorrect "Illegal reference to type from enum case" in companion object

Not quite sure what's happening here, as I'm in the companion object, where I would expect stuff to behave like any other object.

## Minimized code

```Scala
enum Outer:
  case Foo
object Outer:
  trait Bar
  case class Baz(bar: Bar)
```

## Output

```scala
illegal reference to trait Bar from enum case
```

## Expectation
It compiles, or at least gives a better error message.
