Beer company Constellation Brands Inc (NYSE:STZ) has become a new favorite of Berkshire Hathaway Inc (NYSE:BRK)(NYSE:BRK) with the Warren Buffett-led conglomerate adding the stock in recent quarters. The company expects to report second-quarter results on Monday after the market closes.Here are the earnings estimates, what analysts are saying ahead of the report and key items to watch.Earnings Estimates: Analysts expect Constellation to report second-quarter revenue of $2.46 billion. That’s down from$2.92 ...