nameSrcLoc, nameSrcSpan, nameOccName, nameModule, isExternalName )
import NameSet
import NameEnv
-import UniqFM
+import LazyUniqFM
import DataCon ( dataConFieldLabels )
import OccName ( OccName, tcName, isDataOcc, pprNonVarNameSpace, occNameSpace,
reportIfUnused, occNameFS )