President Trump has renewed calls or individual coronavirus-relief measures, but House Speaker Nancy Pelosi says Democrats want instead to pass a broader legislative package. WASHINGTON—Economists are dialing back their forecasts for U.S. economic growth this year as prospects fade for a renewed round of government stimulus. Economists expect to see more workers facing permanent layoffs and a wave of business closures rather than the temporary shock and quick bounce back that some policy makers envisioned earlier this year. That could portend the kind of lackluster growth that followed the last economic downturn. “This…