Scalac crashes when accessing private companion object in a matcher in cps context

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This code works on Scala 2.9.2 and 2.10.0-M2, and crashes from 2.10.0-M3 to 2.10.0-RC1

import scala.util.continuations._

private object Foo {
  private class Bar
}

class Foo {
  import Foo.Bar

  private def bad(): Bar @suspendable = {
    "baz" match {
      case _ =>
        shift { (continue: Bar => Unit) => }
    }
  }
}

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Imported From: https://issues.scala-lang.org/browse/SI-6585?orig=1
Reporter: @Atry
Affected Versions: 2.10.0-M3, 2.10.0-M4, 2.10.0-M5, 2.10.0-M6, 2.10.0-M7, 2.10.0-RC1

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@adriaanm said:
We don't have the resources to fix CPS bugs. We will probably drop support for it in 2.11.

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@Atry said:
Oh no!

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@adriaanm said:
Sorry, the continuations plugin has been unsupported for a while now. Please open an issue over at https://github.com/scala/scala-continuations (we're still looking for a maintainer for it, though).