Accenture ACN.N shares slumped 4.3% after the IT services firm forecast full-year earnings and first-quarter revenue below Wall Street targets. By Lewis Krauskopf, Ankika Biswas and Shashwat Chauhan Sept 28 (Reuters) - Wall Street's main indexes ended higher on Thursday as investors assessed the latest batch of economic data and as a surge in Treasury yields stalled ahead of a key inflation report. The recent move in Treasury yields to 16-year highs has loomed over the stock market, which has pulled back after the Federal Reserve last week signaled a hawkish long-term outlook for interest rates.