Asian stocks advanced while oil prices and the safe-haven dollar fell on Tuesday as the United States said it continued to engage with Tehran ‌to make a deal even as it blocked Iran’s ports after the collapse of peace talks over the weekend.Sources told Reuters that both sides have ‌left the door open to dialogue and a US official said there was forward motion on trying to get to an agreement.MSCI’s broadest index of ‌Asia-Pacific shares outside Japan was up 1.0 per cent in early Asia trade, while Japan’s N ...