LONDON (Reuters) - World shares inched higher on Tuesday as investors awaited a speech by President Donald Trump on U.S. trade policy and on news he was likely to delay a decision on European auto tariffs.Bond markets also seemed increasingly confident a recession will be avoided as EU officials said Trump was expected to announce this week that he was delaying the tariff decision on EU cars and parts for another six months.The news boosted expectations about Trump's speech later in the day and..