Obsolete TODO in music-functions-init.ly

[Valentin Villenave]

Here's what you can read at the top of music-functions-init.ly:

%% TODO: using define-music-function in a .scm causes crash.

Yet the following code works perfectly in a scm file:

(define foo
  (define-music-function (parser location music) (ly:music?)
  #{ $music #}))

It was added by Han-Wen in 2004:
http://git.savannah.gnu.org/gitweb/?p=lilypond.git;a=commitdiff;h=5758fa63add68276fd012fac73a240f40332a320

Is it really still relevant?

Cheers,
Valentin