Summary Summary Companies Netflix gains as GS upgrades ratings Moderna climbs on deal to develop mRNA medicines in China Chip stocks slide on China's export curbs Fed minutes awaited at 2:00 p.m. ET Indexes down: Dow 0.43%, S&P 0.25, Nasdaq 0.04%, July 5 (Reuters) - Wall Street's main indexes slipped on Wednesday as investors awaited minutes of the Federal Reserve's June meeting for clues on the central bank's monetary policy path, while Sino-U.S. tensions and weak economic data from Beijing dented sentiment. Investors are focused on the Fed minutes, expected to be released around 2 p.m. ET, as they resume...