BENGALURU (Reuters) - The yuan will shed recent gains made amid hopes for a "phase one" U.S.-China trade deal, according to strategists in a Reuters poll who predicted a weakening domestic economy would likely dampen the currency in the year ahead.Talk of a possible preliminary deal lifted the tightly-managed currency to a 2-1/2-month high on Tuesday despite weak domestic data and the People's Bank of China (PBOC) lowering its lending rate for the first time since early 2016.The yuan broke..