-- friends:
import HsTypes ( HsType, pprParendHsType, pprHsTyVarBndr, toHsType,
HsTupCon(..), EqHsEnv, hsTupParens,
- emptyEqHsEnv, extendEqHsEnv, eqListBy,
+ emptyEqHsEnv, extendEqHsEnv,
eq_hsType, eq_hsVars
)
import BasicTypes ( Arity )
import FiniteMap ( lookupFM )
import CostCentre
+import Util ( eqListBy )
import Outputable
\end{code}