Feature request: AspectJ syntax highlighting.

```
AspectJ is somehow an extension of Java allowing aspect-oriented programming.
It would be nice if AspectJ keywords were highlighted: pointcut, before, 
around, after, proceed, returning...

URL: https://eclipse.org/aspectj/
Extension used for files: .aj

```

Original issue reported on code.google.com by `br.djo...@gmail.com` on 31 Dec 2014 at 8:57
