freezeAttrTable (FrozenTable _   desc)  =
  interr ("Attributes.freezeAttrTable: Attempt to freeze the already frozen\n\
          \  table `" ++ desc ++ "'!")
freezeAttrTable (FrozenTable _   desc)  =
  interr ("Attributes.freezeAttrTable: Attempt to freeze the already frozen\n\
          \  table `" ++ desc ++ "'!")
freezeAttrTable (FrozenTable _   desc)  =
  interr ("Attributes.freezeAttrTable: Attempt to freeze the already frozen\n\
          \  table `" ++ desc ++ "'!")