Snap makes its Wall Street debut — in Twitter's annual report (SNAP, TWTR)

Snapchat's Wall Street debut is expected later this week when the company will have its highly-anticipated IPO.
But Snapchat marked another Wall Street big premiere on Monday, with its first appearance on a competitor's annual financial report.
Snapchat parent company Snap's name appears twice in Twitter's 10K, which was filed with the SEC on Monday. 
Twitter, which is struggling to revive lagging user growth and revenue, cited Snap among the many internet companies that compete f