Moritz Angermann authored Nov 29, 2016 and Ben Gamari committed Nov 29, 2016

The use of globals is quite painful when multiple rts are loaded, e.g.
when plugins are loaded, which bring in a second rts. The sharedCAF
appraoch was employed for the FastStringTable; I've taken the libery
to extend this to the other globals I could find.

Reviewers: rwbarton, simonmar, austin, hvr, erikd, bgamari

Reviewed By: simonmar, bgamari

Subscribers: thomie

Differential Revision: https://phabricator.haskell.org/D2575