(Bloomberg) -- Chinese investors are heading into the earnings season demanding proof that billions in AI spending by tech giants is paying off.Most Read from BloombergAmbani’s Cola War With Coke, Pepsi Spurs Fridge Bonanza in IndiaInside a Year of Chaos and Conflict at Kevin Hart’s Media CompanyNvidia’s CEO Joins Trump in China With AI in the SpotlightMamdani Scraps Property Tax Hike, Counts Second-Home RevenueThat spotlight will fall on Alibaba Group Holding Ltd. and Tencent Holdings Ltd. when