NEW YORK (Reuters) - Oil prices and a gauge of global stock markets edged higher on Tuesday, lifted by fresh record highs on Wall Street after U.S. President Donald Trump said the United States and China were close to agreeing on the first phase of a trade deal.Investor sentiment took heart in a steady patter of encouraging news about the prolonged trade talks, providing hope the on-again, off-again talks after 16 months of negotiations were finally drawing near to conclusion.Trump said..