Stocks march higher as Middle East tensions ease

LONDON (Reuters) - World stocks set new record highs on Friday and the prices of safe-haven assets such as gold pulled back as investors cheered an apparent de-escalation in U.S.-Iran tensions and looked instead to prospects of improved global growth.Markets have swiftly reversed the sharp falls seen at the start of the week after the United States killed Iran's most senior general, believing it would not lead to a full-scale military confrontation that would rock investor confidence.The MSCI..