Cyclic reference when using List and compiling Seq* classes at the same time

[DarkDimius]

$ cat B.scala
object B{
  def main(args: Array[String]): Unit = {
    val s = List(1,2,3)
    ()
  }
}

$ dotc ./scala-scala/src/library/scala/collection/immutable/Seq.scala ./scala-scala/src/library/scala/package.scala ./scala-scala/src/library/scala/collection/GenSeqLike.scala ./scala-scala/src/library/scala/collection/SeqLike.scala ./scala-scala/src/library/scala/collection/generic/GenSeqFactory.scala B.scala
./scala-scala/src/library/scala/collection/SeqLike.scala:62: error: cyclic reference involving trait ParSeq
trait SeqLike[+A, +Repr] extends Any with IterableLike[A, Repr] with GenSeqLike[A, Repr] with Parallelizable[A, ParSeq[A]] { self =>
                                                                                                                ^

If B.scala is removed from compilation list, cyclic reference error is not triggered anymore.

[smarter]

Can you still reproduce this? Seems to work fine here now.

[DarkDimius]

I can reproduce it on 4463f5e locally.

[DarkDimius]

@smarter could you please try with different order of arguments:

dotc B.scala ./scala-scala/src/library/scala/collection/immutable/Seq.scala ./scala-scala/src/library/scala/package.scala ./scala-scala/src/library/scala/collection/GenSeqLike.scala ./scala-scala/src/library/scala/collection/SeqLike.scala ./scala-scala/src/library/scala/collection/generic/GenSeqFactory.scala

[smarter]

Yes, I can reproduce that way.

[smarter]

OK, I think I got it but I'll need some help with the design: #981

[odersky]

This is fixed by now.