UK shares cheer upbeat earnings updates, trade signals

(Reuters) - A slew of upbeat earnings updates sent both benchmark British indexes higher on Thursday, while the broader sentiment was buoyed by signs of a thaw in U.S.-China trade talks.The FTSE 100 added 0.3% and advanced for the fifth straight session, supported by miners , Asia-focused banks, as well as a 3% rise in insurer RSA and Auto Trader .The FTSE 250 outperformed with a 0.5% rise, aided by a 9% surge in luxury carmaker Aston Martin after its quarterly results and a 7% jump in food..