Cabal revisions of llvm-hs-pure-5.1.2

Hackage metadata revisions edit the .cabal file after upload; each diff below is one revision.

 name: llvm-hs-pure version: 5.1.2+x-revision: 1 license: BSD3 license-file: LICENSE author: Anthony Cowley, Stephen Diehl, Moritz Kiefer <moritz.kiefer@purelyfunctional.org>, Benjamin S. Scarlet       semigroups >= 0.18 && < 0.19   else     build-depends:-      base >= 4.9 && < 5+      base >= 4.9 && < 4.11   build-depends:     attoparsec >= 0.13,     bytestring >= 0.10 && < 0.11,