(Okay, I didn't really expect that particular usage of the Class object in Actionscript to work. But the compiler swallowed it, and it *would* work in Scala...)
ETA: Okay, I must apologize to Actionscript -- with a little more hacking, my improbable experiment *did* work. I'm going to have to remember that the Actionscript Class object is a *lot* more powerful than it is generally given credit for...