F# highlighting is also now totally gone with this change. Code is highlighted with some random lexer than doesn't even understand // comments. Rather frustrati

F# highlighting is also now totally gone with this change. Code is highlighted with some random lexer than doesn't even understand // comments. Rather frustrating, given that a lot of F# development is centered around GH, and GH themselves use F# in a couple of places. Browsing the issues list, this isn't just "fringe" languages, either. Perl, PHP, Go, and Clojure all appear to have regressed to some degree.