(CoreUnfolding { uf_tmpl = expr, uf_arity = arity
, uf_guidance = guide@(InlineRule {}) })
= do { expr' <- simplExpr (setMode SimplGently env) expr
(CoreUnfolding { uf_tmpl = expr, uf_arity = arity
, uf_guidance = guide@(InlineRule {}) })
= do { expr' <- simplExpr (setMode SimplGently env) expr