Add missing export of associated type to GHC.Exts
Import instances with {-# SOURCE #-}
More tests
Also hash language
Import instances with {-# SOURCE #-}
Write out hs-boot file for each generated module
Merge branch 'separate_instances' of https://github.com/phischu/fragnix into separate_instances

Conflicts:
	src/Fragnix/SliceCompiler.hs
Put each instance into a separate slice and import them with {-# SOURCE