Copying sources next to the binary allows gdb to automatically detect
the sources. One still has to start up gdb from this directory though.
Follow up to #12294
- Before this patch one needs to:
To make `gdb` detect the sources without the need of executing gdb's `directory` or `set directories` commands.
- After this patch one needs to:
which should be more intuitive.
Since this is not a major improvement we might as well skip it.