AnyVal Private constructor inlined (assertion error)

[OlivierBlanvillain]

This subtle example minimized from ScalaTest code base requires two files and a particular compilation order:

1.scala:

final class PosZInt private (val value: Int) extends AnyVal

object PosZInt {
  def from(value: Int): Option[PosZInt] =
    if (value >= 0) Some(new PosZInt(value)) else None
}

2.scala:

object Test {
  scala.util.Try(PosZInt.from(1).get)
}

run 2.scala 1.scala

Leads to:

assertion failed: private constructor PosZInt in class PosZInt in 1.scala accessed from method $anonfun in object Test in 2.scala

I'm guessing the generated code is correct, so maybe it should be enough to remove / relax the assertion?