By Marleen Kaesebier and Javi West Larrañaga (Reuters) -Analysts are a little more upbeat about European companies' third-quarter results than a week ago, according to the latest estimates compiled by LSEG I/B/E/S, despite the latest flare-up in trade tensions between the U.S. and China. European companies are on average expected to report a 0.5% year-on-year increase in third-quarter earnings, the data showed. That is better than the average 0.2% fall predicted a week ago. It would, however, still be t ...