It sounds like a China berrytree. My grandmother always cautioned us that we were going to DIE if we ate the berries.
Wow thanks, didn't know the English word. I was plugging away at Google with no luck on this one. And my Spanish dictionary translated lila as lilac, which made no sense to me, since it is not the normal lilac I am used to. I guess it is also called Persian Lilac, and can also be spelled lelah.
Sounds like your grandma was right!
Medicinal applications: bark - and fruit extract is used to kill parasitic roundworms.