According to this post intellisense should also be working on the new VS 2015, but so far I only get intellisense for the angular object and not for the dependencies or my c
I had the same issue. When I added angular, VS 2015 (RTM) modified my _references.js; basically it removed some of my lines in the file. When I added a reference for angula in my _references.js as below
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I got my intellisense for Angular 1.4.3 in VS 2015!