% cat sandbox/test.scala
class C {
  /**
   *  @usecase def zipWithIndex: $NotFound
   *
   */
  def zipWithIndex: Int = ???
}

% `scalac-hash -h aedec19~1`/bin/scaladoc sandbox/test.scala 2>&1 | grep found
sandbox/test.scala:23: warning: not found: type $Coll
three warnings found

% `scalac-hash -h aedec19`/bin/scaladoc sandbox/test.scala 2>&1 | grep found
sandbox/test.scala:23: error: not found: type $Coll
two warnings found
one error found

% git show aedec19
commit aedec19808a7a3d383f839d2ee2c2ec4265fb9c6
Author: Paul Phillips <paulp@improving.org>
Date:   Mon Jan 14 23:31:30 2013 -0800

    Granted scaladoc its own Global.

    An incremental step on the road to disentangling
    scaladoc from the compiler sources. This pushes the
    elements in typer outward so scaladoc can subclass
    Global like everyone else.