By Harry Robertson and Tom Westbrook LONDON/SINGAPORE (Reuters) -Japanese stocks hit a 34-year high on Wednesday while global equities, the dollar and bonds held steady before U.S. inflation data on Thursday. Bitcoin stabilised after spiking when an unauthorised post from the U.S. Securities and Exchange Commission’s X account said it had approved bitcoin exchange-traded funds. Japan’s Nikkei – which had its best year for a decade in 2023 – climbed 2% to break above 34,000 for the first time since 1990. Exporters led the charge, helped by a softening yen after data showed Japanese real wages s…

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