Sharing some naming conventions is a key point to make it possible for a team to efficiently collaborate. This rule allows to check that all local variable and function parameter names match a provided regular expression.
With the default regular expression ^[_a-z][a-zA-Z0-9]*$:
public function doSomething(my_param:int):void
{
var LOCAL:int;
...
}
public function doSomething(myParam):void
{
var local;
...
}