As a lightweight alternative, I've started using the All Autocomplete package for SublimeText (installable through Package Control). It simply sets your autocomplete to the union of all autocomplete terms from open tabs/views. So if you already have, say, a module's source code (or a demo/test from a module) open in the background, all those terms will be included. I'm such a perfectionist that I could spend hours just setting up/annotating my source code to autocomplete perfectly with CC+; it's better to have something that Just Works (TM). Still, this is quite an accomplishment, and will certainly be useful to many!