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import scala.language.{ existentials }
import scala.reflect.runtime.universe._
class A {
object b {
object c
}
def m = b.c
}
object Test extends App {
var a: A = new A // mutable
val c /*: object _1.b.c forSome { val _1: A } */ = a.m // widening using existential
def mani[T: TypeTag](x: T) = println(typeOf[T])
mani/*[object _1.b.c]*/(c) // kaboom in manifestOfType / TreeGen.mkAttributedQualifier
// --> _1 is not in scope here
}
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