Syntax highlighting in literate Haskell code

Describe your feature request
While .hs files get great support in the editor window, once you use literate Haskell (.lhs file), this does not happen.

What problem(s) would this feature solve?
.lhs files would receive the same treatment in the editor as .hs files do, making it much easier to use these educationally very helpful files.

Explain what you were trying to do when you came across the problem leading to this feature request
I was coding in Main.hs parallel to a module file that I made a .lhs file.


This would be a great idea for extensions! I a moving this to #extensions because I think syntax highlighting is planned.