Asian stocks pushed higher on Wednesday despite the renewed artificial intelligence worries gripping international markets, while oil prices were under pressure after Iran touted progress in nuclear negotiations with the United States. The New Zealand dollar sank after the central bank said monetary policy needs to remain accommodative for some time to support the economic recovery. Japan's benchmark Nikkei 225 index rose 0.93% to 57,090.14, poised to snap a three-day skid, while Australia's S&