UPDATE 1-U.S.-based emerging market debt funds attract most money on record-Lipper

(Recasts; adds data on mutual funds and ETFs, analyst quote, table, byline) By Trevor Hunnicutt NEW YORK, July 21 (Reuters) - U.S. investors sweetened on riskier global assets for the first time in weeks, pouring record sums into emerging market debt and pumping up foreign stocks after five weeks of withdrawals, Lipper data showed on Thursday. Emerging market debt funds offered in the United States took in $918 million during the week, the data showed, larger than in any other wee