The M&S Grill has shut its doors at Harborplace — the latest tenant to exit one of downtown's top tourist attractions. Workers on Friday were busy emptying furniture out of the restaurant that closed earlier in the week. The exodus of the largest tenant in the Pratt Street Pavilion leaves a 7,800-square-foot gap in the shopping center. The departure of M&S Grill is the latest in a string of retail and restaurant closings at Harborplace.