Re-export ghc-boot:GHC.Serialized as Serialized
Re-export ghc-boot:GHC.Serialized as Serialized

For backwards-compat with GHC 7.10.

(cherry picked from commit 713aa90d3c4fde18d58c321520611892ed426d38)

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