Any comments on the patch I've send two weeks ago? Note that I'm not longer
interested in this patch myself, since I no longer use "--stack-list-frames
--all-values" in KDevelop, but I believe the patch affects the MI support
in Emacs that Nick is working on.

- Volodya

>> - print_frame_args, where it is used to deliberately print
>>   only the address of a reference.  I'm not entirely sure why.
>> 
>> - Languages, to implement value_print - not relevant right now.
> 
> It appears that 'common_val_print' has 'deref_ref' parameter which can be
> used to get back the old behaviour. However, then we'll again get no
> output if there's any undereferencable reference.
> 
> I attach a patch that addresses this issue -- now, undereferencable
> references don't throw. For dereferencable references the value is printed
> after ":" as it is now.
> 
> Changelog:
> 
> 2006-04-04 Vladimir Prus <ghost@cs.msu.su>
> 
>     * c-valprint.c (c_val_print): Explicitly check if a reference
>       is dereferencable.
>     * valops.c (value_at_maybe): New function
>     * value.h (value_at_maybe): Export.
>     * mi/mi-cmd-stack.c (list_args_or_locals): Use 'common_val_print',
>      instead of 'print_value_value'. Remove code duplication.
> 
> Patch is attached.
> 
> - Volodya