_set :: DynFlags -> DumpFlag -> DynFlags
dopt_set dfs f = dfs{ dumpFlags = IntSet.insert (fromEnum f) (dumpFlags dfs) }

--
dopt_set :: DynFlags -> DumpFlag -> DynFlags
dopt_set dfs f = dfs{ dumpFlags = IntSet.insert (fromEnum f) (dumpFlags dfs) }
dopt_set dfs f = dfs{ dumpFlags = IntSet.insert (fromEnum f) (dumpFlags dfs) }