Your comments

I was about to post the same idea/request.
I and many others absolutely LOVE the autocomplete of NetBeans.
If Sublime has the same autocomplete it will be one of the best features of the editor.
I use PHP and NetBeans smartly autocompletes class names and functions when I create variable and when I start to write method of the object it autocompletes only the methods of the class. Example:

In file random.php:
$email = new EmailManager();
$email-> (autocompletes all methods of class EmailManager and the class EmailManager is not even included in the random.php)

I guess NetBeans parses the entire project in order to get all classes and their methods.