(Reuters) - London stocks closed higher on Friday, as a jump in China's factory output for the first time in 2020 powered resource companies, but the benchmark indices ended the week lower as fears of the economic fall-out of the coronavirus weighed.The commodity-heavy FTSE 100 was up 1%, with miners including Rio Tinto , Glencore and BHP Group providing the biggest boosts, while oil major Royal Dutch Shell rose 2%. [O/R] [MET/L]The mid-cap FTSE 250 also rose 1.7% as data showed China's..