By Herbert Lash and Dhara Ranasinghe NEW YORK/LONDON (Reuters) – A gauge of global equity markets slid from five-month highs and Treasury yields rose on Wednesday as corporate results fueled recession fears, overshadowing recent optimism that the Federal Reserve could soon back off aggressive monetary tightening. Microsoft Corp’s lackluster outlook late Tuesday indicated more gloom ahead for the tech sector after the bellwether warned customers were cautious about spending in an uncertain economy. Downbeat results from Boeing on Wednesday amid ongoing supply chain constraints added to inflatio…