disconnect coverage

[Han-Wen Nienhuys]

Hi Erik,

browsing the coverage reports, I see

**
uncovered chunk in out-cov/score-performer.cc.gcov
   #####:      77:Score_performer::disconnect_from_context ()
       -:      78:{
   #####:      79:  Dispatcher *d = context ()->get_global_context 
()->event_source ();
   #####:      80:  d->remove_listener (GET_LISTENER (one_time_step), 
ly_symbol2scm ("OneTimeStep"));
   #####:      81:  d->remove_listener (GET_LISTENER (prepare), ly_symbol2scm 
("Prepare"));
   #####:      82:  d->remove_listener (GET_LISTENER (finish), ly_symbol2scm 
("Finish"));
       -:      83:
   #####:      84:  Performer_group::disconnect_from_context ();
   #####:      85:}
uncovered chunk in out-cov/score-engraver.cc.gcov
   #####:     103:Score_engraver::disconnect_from_context ()
       -:     104:{
   #####:     105:  Dispatcher *d = context ()->get_global_context 
()->event_source ();
   #####:     106:  d->remove_listener (GET_LISTENER (one_time_step), 
ly_symbol2scm ("OneTimeStep"));
   #####:     107:  d->remove_listener (GET_LISTENER (prepare), ly_symbol2scm 
("Prepare"));
   #####:     108:  d->remove_listener (GET_LISTENER (finish), ly_symbol2scm 
("Finish"));
       -:     109:
   #####:     110:  Engraver_group::disconnect_from_context ();
   #####:     111:}
**

it seems this is never executed. Can you check this out, and either 
remove the code, or fix it? 

-- 

Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen

LilyPond Software Design
 -- Code for Music Notation
http://www.lilypond-design.com