Nathan Vifflin / Reuters:STMicro reports Q1 revenue of $3.10B, above $3.04B est., $171M operating income, above $165.8 est., and forecasts $3.45B revenue for Q2, above $3.21B est. — STMicroelectronics (STMPA.PA) reported first-quarter results above market expectations on Thursday, pointing to signs of recovery …