Convert-ly rules

[Maximilian Albert]

Hi,

I just ran convert-ly over an old score (typeset with v2.8.6) which
contained the following line:

  \override TextSpanner #'edge-text = #(cons (markup #:bigger #:bigger
#:bigger #:upright "rit." ) "")

Now the \bigger command was removed recently (replaced by \larger). A
corresponding convert-ly rule does exist, but it explicitly checks for
the backslash in front of the command. So the above line was left
unchanged, which made lilypond choke. Should convert-ly rules be
formulated so that Scheme-version of commands like the above are also
taken into account? Which other commands does this affect?

Max