import CoreSyn
import CoreUnfold ( isValueUnfolding )
import CoreFVs ( exprFreeVars )
-import CoreUtils ( exprIsTrivial, cheapEqExpr, exprType, exprIsCheap, exprEtaExpandArity )
+import CoreUtils ( exprIsTrivial, cheapEqExpr, exprType, exprIsCheap, exprEtaExpandArity, bindNonRec )
import Subst ( InScopeSet, mkSubst, substBndrs, substBndr, substIds, lookupIdSubst )
import Id ( Id, idType, isId, idName,
idOccInfo, idUnfolding,