testsuite: gdb auto-loads scripts from abrt's debug dir

Signed-off-by: Jakub Filak <jfilak@redhat.com>
Revert "gdb: disable loading of auto-loaded files"

This reverts commit 77a270a948216a8bb5bcc960042aeb467794b593.

Turning auto-load off also turns the pretty printer off.

Unfortunately, we must trust to providers of the auto-loaded scripts.
(Jakub Filak must start fixing root causes and stop treating symptoms.)

Signed-off-by: Jakub Filak <jfilak@redhat.com>
gdb: make gdb aware of the abrt's debuginfo dir

A debuginfo package might ship an auto-loaded gdb script. If abrt
unpacks that package into the abrt's debuginfo cache dir and points gdb
to that directory, gdb refuses to auto-loaded that gdb scripts and
produces a plenty of warning messages that abrt writes to 'backtrace'
file.

The previous solution of this issue was to turn auto-load off completely
but it turned the pretty printer off too.

The correct solution is to add the abrt's debuginfo cache directory to
auto-load safe-path and auto-load scripts-dir settings.

Thanks Jan Kratochvil <jkratoch@redhat.com>

Resolves: #1163335

Signed-off-by: Jakub Filak <jfilak@redhat.com>