super-cast-or-test.scala:1: error: super not allowed here: use this.asInstanceOf instead
trait A { def f = super.asInstanceOf[AnyRef] }
                        ^
super-cast-or-test.scala:2: error: super not allowed here: use this.isInstanceOf instead
trait B { def g = super.isInstanceOf[AnyRef] }
                        ^
two errors found