integrate AutoDeleter's into pointers

Change-Id: I6c3925a7aec4d0647c76c2a03aad7b08985d7166
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3490
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

i2c: add diagnostic utility

Change-Id: I7e87457ff6e4210e256f9e41e5555e2d0e1ba20d
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2459
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>