Hi emacs-orgmode,

I use prettify-symbols-mode heavily, and prettification isn't currently copied by org-src's native fontification. The two attached patches add this feature. You can test them by enabling global-prettify-symbols-mode and creating an emacs-lisp code block in org-mode. I already have FSF papers on file.

The first one is not strictly necessary, but it makes the second one easier to write, and it fixes (what I think is) a bug in the current implementation (if the 'face in the fontified buffer is already a list, say '(a b), then org-src will construct an invalid face '(:inherit (a b) org-block)) instead of (:inherit (a b org-block))—which could really just be (a b org-block), as done by patch 1). 

Cheers,
Clément.