Bug: Versioning not complaining about union of arrays using incomaptible types

[timotheeguerin]

If referencing a type via a union of array that is not available in the version it doesn't complain and we endup with some never types

model Widget {
  // uncomment to fix
  // @added(Versions.v2)
  content: string | Bar[];
}

@added(Versions.v2)
model Bar {}

Playground Link

[tjprescott]

I think the right way to express this is in this playground using @typeChangedFrom.

So it seems to me like the course of action here would be to throw a versioning error that Bar is referenced in v1 but didn't exist until v2.