From this: http://www.shunleerestaurants.com/ it appears that both locations are still open. It must have been the east side location I ate at.
While we’re digging into the past, these two are interesting:
https://tmagazine.blogs.nytimes.com/2014/09/25/shun-lee-manhattan-fine-dining-chinese-restaurant/
http://www.eatdrinkjourney.com/forgotten-nyc-restaurants.html