scala/scala — pull request #95 by dcsobral (2012-01-11 21:44:10+00:00)
Title: Merge ??? from trunk

Added ??? and NotImplementedError because this seemed to be the
opinion of the majority on the "Adding ??? to Predef?" thread on
scala-internals. No review.

This change is pretty harmless, and if it's good enough for 2.10.0, it ought to be good enough for 2.9.2.