Exactly, more language specific search functionality. I want to be able to hover over a variable, function or class and see where it is defined and some places

Exactly, more language specific search functionality. I want to be able to hover over a variable, function or class and see where it is defined and some places where it is used elsewhere. Essentially the features of an advanced IDE, without the ability to edit and a simple user interface. I don't want the website to break if JS isn't enabled or use a 1000% CPU.