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  
Noncompliant code example
if (true != false) { // Compliant
}
if (true <> false) { // Noncompliant
}
set("varName", value); // Noncompliant
varName = value; // Compliant