[RFA/doco] set varsize-limit: New GDB setting for maximum dynamic object size

[Joel Brobecker]

> gdb/ChangeLog
> 
>         * NEWS: Add entry describing new "set|show varsize-limit" command.
>         * ada-lang.c (_initialize_ada_language): Add "set/show varsize-limit"
>         command.
>         * printcmd.c (_initialize_printcmd): Add "set var" alias of
>         "set variable".
> 
> gdb/doc/ChangeLog:
> 
>         * gdb.texinfo (Ada Settings): New subsubsection.
> 
> gdb/testsuite/ChangeLog:
> 
>         * gdb.ada/varsize_limit: New testcase.

FTR, I just pushed this patch to master.

Thanks,
-- 
Joel