Tiny refactoring in TcUnify
Tiny refactoring in TcUnify

(cherry picked from commit 33950aa6cfa9ba6866c81254c960de4def062fd2)

GaloisInc/halvm-ghc,GaloisInc/halvm-ghc,GaloisInc/halvm-ghc,GaloisInc/halvm-ghc,GaloisInc/halvm-ghc,GaloisInc/halvm-ghc,GaloisInc/halvm-ghc