JuliaLang/julia — pull request #6443 by simonster (2014-04-06 23:29:59+00:00)
Title: Don't export symbols from Core that shouldn't be called directly

Core's exports are in the namespace of every module, so it doesn't make much sense to me to export these functions, all of which are undocumented and some of which will make Julia segfault if called with the wrong method signature.