Make Module Uniquable

diff --git a/compiler/basicTypes/Module.lhs b/compiler/basicTypes/Module.lhs
index 6b52b32..77c0a93 100644 (file)
--- a/compiler/basicTypes/Module.lhs
+++ b/compiler/basicTypes/Module.lhs
@@ -213,6 +213,9 @@ data Module = Module {
   }
   deriving (Eq, Ord)
 
+instance Uniquable Module where
+  getUnique (Module p n) = getUnique (packageIdFS p `appendFS` moduleNameFS n)
+
 instance Outputable Module where
   ppr = pprModule