I've been using Intellij IDEA for a while now and didn't really dig into the code cleanup stuff until today. I must say.. it is awesome. If you're unsure what it is then I'd suggest you take a look at the Preferences > Code Style > ActionScript.. or any other language you use.
At first it seemed somewhat cryptic with what a var vs a property was.. but it cleared up. The default profile is not ideal for what I wanted so I tweaked it for my specific actionscript style. I'll post it here for folks who may want to do a simple import or if I lose my config for some reason.