Mystery Plant ---Lingonberry????

Hello, I got this plant with a mix of other plants that were already growing. I was told by a relative that it was a lingonberry, but all the pictures I looked at online looked nothing like the one I supposedly have. Please help.
Here's a pic:

 

looks more like a weedy solanum of some type

 

Hey, thanks. I think that's what it is from looking and reading online.

 

Note than many Solanum species have poisonous fruit.