Draft GenPrimopCode argument list.
Draft GenPrimopCode argument list.

quchen/shaking-up-ghc,izgzhen/hadrian,snowleopard/shaking-up-ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,snowleopard/hadrian,bgamari/shaking-up-ghc,sdiehl/ghc,sdiehl/ghc