availName, IsBootInterface, Deprecations )
import Packages ( PackageId )
import Type ( Type, pprTyThingCategory )
-import TcType ( TcTyVarSet, TcType, TcThetaType, SkolemInfo, TvSubst,
+import TcType ( TcTyVarSet, TcType, TcThetaType, SkolemInfo,
TcPredType, TcKind, tcCmpPred, tcCmpType,
tcCmpTypes, pprSkolInfo )
import InstEnv ( Instance, InstEnv )
-import FamInstEnv ( FamInst, FamInstEnv )
+import FamInstEnv ( FamInstEnv )
import IOEnv
import RdrName ( GlobalRdrEnv, LocalRdrEnv )
import Name ( Name )
import SrcLoc ( SrcSpan, SrcLoc, Located, srcSpanStart )
import VarSet ( IdSet )
import ErrUtils ( Messages, Message )
-import UniqFM ( UniqFM )
import UniqSupply ( UniqSupply )
import BasicTypes ( IPName )
import Util ( thenCmp )