Riviera-PRO 2020.04 doesn't support enhanced generic interface types

[Paebbels]

Riviera-PRO 2020.04 doesn't support enhanced generic interface types. See LCS2016-059

Failing code

package CSE is
  generic (
    type T_Command is (<>);
    type T_Status  is (<>);
    type T_Error   is (<>)
  );
  -- ...
end package;

Workaround

Don't restrict generic interface types to be discrete/allow any type (VHDL-2008 compatible).

package CSE is
  generic (
    type T_Command;
    type T_Status;
    type T_Error
  );
  -- ...
end package;