AMSTERDAM (Reuters) -Shares in ASML Holding, a key supplier of equipment to semiconductor makers, fell on Tuesday following a Bloomberg News report that the U.S. government wants to restrict the company from selling equipment to China. ASML has already been unable to ship its most advanced tools to China, but the report said Washington would also restrict the sale of slightly older machines, citing “people familiar with the matter.” A spokesperson for ASML said the company was unaware of any policy change. “The discussion is not new,” the spokesperson said. “No decisions have been made, and we…