Usage of statements, operators and keywords specific to ActionScript 2 does not allow to migrate to ActionScript 3. This includes "intrinsic" keyword, set variable statement and following list of operators:
* ``++<>++`` (inequality) - use ``++!=++`` instead
* ``++add++`` (concatenation (strings)) - use ``+`` instead
* ``++eq++`` (equality (strings)) - use ``++==++`` instead
* ``++ne++`` (not equal (strings)) - use ``++!=++`` instead
* ``++lt++`` (less than (strings)) - use ``++<++`` instead
* ``++le++`` (less than or equal to (strings)) - use ``++<=++`` instead
* ``++gt++`` (greater than (strings)) - use ``++>++`` instead
* ``++ge++`` (greater than or equal to (strings)) - use ``++>=++`` instead
* ``++and++`` (logical and) - use ``++&&++`` instead
* ``++or++`` (logical or) - use ``++||++`` instead
* ``++not++`` (logical not) - use ``++!++`` instead