* guix/import/hackage.scm (hackage-module->sexp): Add property upstream-name to imported package. * tests/hackage.scm (match-ghc-foo): Add upstream-name property. (match-ghc-foo-6): Ditto. (match-ghc-elif): Ditto. (match-ghc-foo-revision): Ditto. (match-ghc-foo-import): Ditto.