-- eta-reduced version of the @newtype@ if possible
newTyConInstRhs tycon tys
= ASSERT2( equalLength tvs tys1, ppr tycon $$ ppr tys $$ ppr tvs )
-- eta-reduced version of the @newtype@ if possible
newTyConInstRhs tycon tys
= ASSERT2( equalLength tvs tys1, ppr tycon $$ ppr tys $$ ppr tvs )