How to load C++ pretty-printers

[Eli Zaretskii]

> From: Philippe Waroquiers <philippe.waroquiers@skynet.be>
> Cc: Eli Zaretskii <eliz@gnu.org>, Simon Marchi <simon.marchi@polymtl.ca>, 
> 	gdb@sourceware.org
> Date: Sun, 17 Mar 2019 13:39:52 +0100
> 
> But then:
>    Â p current_program_space->added_solibs[0]
>     One of the arguments you tried to pass to operator[] could not be converted to what
>     the function wants.
> (why is then GDB not telling me what the function wants ?).
> I am finally doing
>    p (*(struct so_list*)0x56275a765a60)
> 
> But that all looks like a 'backward' user experience:

Is that a problem with GDB or with the pretty-printer?  If the latter,
it might be worth telling this to the GCC folks.

Thanks.