bug#69684: Functionality of Fbare_symbol has been lost.

[Alan Mackenzie]

Hello Paul, hello Emacs.

Since a recent commit, Fbare_symbol (in src/data.c) no longer works on a
symbol with position when symbols-with-pos-enabled is nil, instead
signalling an error.

This is due to the new CHECK_SYMBOL (sym); statement in Fbare_symbol,
which wasn't there before.

Since I merged master into my development branch, I can no longer build
it because of this change.  A rapid reversion to the previous
functionality would be appreciated.  :-)

Thanks!

-- 
Alan Mackenzie (Nuremberg, Germany).