File: hk-bad-bounds.check

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scala 2.11.8-1
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hk-bad-bounds.scala:4: error: type arguments [Set] do not conform to class SeqFactory's type parameter bounds [CC[X] <: Seq[X] with scala.collection.generic.GenericTraversableTemplate[X,CC]]
  def f(x: Boolean) = if (x) (null: SeqFactory[List]) else (null: SeqFactory[Set])
                                                                  ^
one error found