In early July, Malaysian Prime Minister Muhyiddin Yassin was flying high, considering the circumstances.A months-long threat by the opposition to bring his government down through a no-confidence vote failed to materialise, and instead he secured an important win to install a new parliamentary speaker. Things were looking up for the 73-year-old prime minister on the coronavirus front, too.After a gruelling March-to-May lockdown that ground Southeast Asia’s third-largest economy to a near…