New scheme list/identifier syntax has undocumented side-effects

[Malte Meyn]

Hi list,

the German LilyPond forum discovered a side effect of the new identifier 
syntax: additional to

\version "2.19.40"
FOO = { c d e }
\FOO

there are now more cases where you cannot use a variable immediately 
after it’s definition:

\version "2.19.40"
FOO = "This is a markup"
\FOO
BAR = "test.ly"
\include \BAR

This comes from commit 2a66e23f3 and should be documented in the changes 
IMO because probably that’s nothing that convert-ly can handle.

Malte