By David Lawder WASHINGTON (Reuters) -The International Monetary Fund said on Saturday that its staff held “fruitful technical discussions” with Sri Lankan authorities on the crisis-wracked country’s request for an IMF-supported loan program this week. The Fund said in a statement that the discussions included the need for Sri Lanka to implement “a credible and coherent strategy” to restore macroeconomic stability, and to strengthen its social safety net and protect the poor and vulnerable during the current crisis. “The IMF team welcomed the authorities’ plan to engage in a collaborative dial…