prevents using reify and quasiquotes in the compiler

Kind of prevents us from using quasiquoting facilities in scalac,
because those depend on internal APIs that can easily diverge from starr,
creating problems similar to https://groups.google.com/forum/#!topic/scala-internals/K4EoU6q0dek.

This hack doesn't strictly prohibit those facilities from being used,
since I have no good idea about how to do that reliably, but rather
makes reification/quasiquoting print swaths of debug output that are
going to catch someone's eye.