is <> 0 (Delphi compatible now, + various tests)
  + support for enums and sets in is_in_limit()
  * fixed converting smallset expressions to varsets
  * improved choosing an appropriate common set type when mixing
    set types in an expression
  - removed no longer used normalset code from nadd.pas
  - disabled large set (>256 elements) support for now, because
    they are not yet supported entirely throughout the compiler
    and this causes errors at run time in several situations

git-svn-id: trunk@8515 -