)
import UniqSupply ( UniqSupply, initUs_, returnUs, thenUs, mapUs, getUniqueUs, UniqSM )
import Unique ( hasKey )
-import BasicTypes ( RecFlag(..), isNonRec, Activation(..) )
+import BasicTypes ( RecFlag(..), isNonRec )
import VarEnv ( isEmptyVarEnv )
import Maybes ( orElse )
import DynFlags