Solve one of the failing integration tests from #4142

Author: mihaimaruseac

src/Stack/Build/ConstructPlan.hs

@@ -704,7 +704,7 @@ addPackageDeps treatAsDep package = do
     -- make sure we consider internal libraries as libraries too
     packageHasLibrary :: Package -> Bool
     packageHasLibrary p =
-      Set.null (packageInternalLibraries p) ||
+      not (Set.null (packageInternalLibraries p)) ||
       case packageLibraries p of
         HasLibraries _ -> True
         NoLibraries -> False