Fix after PkgQual refactoring (#1429)

haddock-api/src/Haddock/Interface/Create.hs

@@ -59,7 +59,6 @@ import GHC.Data.FastString (bytesFS, unpackFS)
 import GHC.Driver.Ppr (showSDoc)
 import GHC.HsToCore.Docs hiding (mkMaps)
 import GHC.IORef (readIORef)
-import GHC.Parser.Annotation (IsUnicodeSyntax (..))
 import GHC.Stack (HasCallStack)
 import GHC.Tc.Types hiding (IfM)
 import GHC.Tc.Utils.Monad (finalSafeMode)
@@ -72,14 +71,13 @@ import GHC.Types.Name.Reader (GlobalRdrEnv, greMangledName, lookupGlobalRdrEnv)
 import GHC.Types.Name.Set (elemNameSet, mkNameSet)
 import GHC.Types.SourceFile (HscSource (..))
 import GHC.Types.SourceText (SourceText (..), sl_fs)
+import GHC.Unit.Types
 import qualified GHC.Types.SrcLoc as SrcLoc
 import qualified GHC.Unit.Module as Module
 import GHC.Unit.Module.ModSummary (msHsFilePath)
-import GHC.Unit.Module.Warnings (WarningTxt (..), Warnings (..))
 import GHC.Unit.State (PackageName (..), UnitState, lookupModuleInAllUnits)
 import qualified GHC.Utils.Outputable as O
 import GHC.Utils.Panic (pprPanic)
-import GHC.HsToCore.Docs hiding (mkMaps)
 import GHC.Unit.Module.Warnings
 
 newtype IfEnv m = IfEnv
@@ -351,8 +349,7 @@ mkAliasMap state impDecls =
          -- them to the user.  We should reuse that information;
          -- or at least reuse the renamed imports, which know what
          -- they import!
-         (fmap Module.fsToUnit $
-          fmap sl_fs $ ideclPkgQual impDecl)
+         (ideclPkgQual impDecl)
          (case ideclName impDecl of SrcLoc.L _ name -> name),
        alias))
     impDecls
@@ -395,11 +392,11 @@ unrestrictedModuleImports idecls =
 -- Similar to GHC.lookupModule
 -- ezyang: Not really...
 lookupModuleDyn ::
-  UnitState -> Maybe Unit -> ModuleName -> Module
-lookupModuleDyn _ (Just pkgId) mdlName =
-  Module.mkModule pkgId mdlName
-lookupModuleDyn state Nothing mdlName =
-  case lookupModuleInAllUnits state mdlName of
+  UnitState -> PkgQual -> ModuleName -> Module
+lookupModuleDyn state pkg_qual mdlName = case pkg_qual of
+  OtherPkg uid -> Module.mkModule (RealUnit (Definite uid)) mdlName
+  ThisPkg uid  -> Module.mkModule (RealUnit (Definite uid)) mdlName
+  NoPkgQual    -> case lookupModuleInAllUnits state mdlName of
     (m,_):_ -> m
     [] -> Module.mkModule Module.mainUnit mdlName