fakeInstalledPackageId :: PackageId -> InstalledPackageId
fakeInstalledPackageId = InstalledPackageId . (".fake."++) . display
fakeInstalledPackageId :: PackageId -> InstalledPackageId
fakeInstalledPackageId = InstalledPackageId . (".fake."++) . display
fakeInstalledPackageId = InstalledPackageId . (".fake."++) . display