// all elements must have keys
				visited := make([]bool, len(fields))
				for _, e := range e.Elts {
					kv, _ := e.(*ast.KeyValueExpr)
					if kv == nil {
						check.error(e, MixedStructLit, "mixture of field:value and value elements in struct literal")
						continue
					}
					key, _ := kv.Key.(*ast.Ident)
					// do all possible checks early (before exiting due to errors)
					// so we don't drop information on the floor

				visited := make([]bool, len(fields))
				for _, e := range e.ElemList {
					kv, _ := e.(*syntax.KeyValueExpr)
					if kv == nil {
						check.error(e, MixedStructLit, "mixture of field:value and value elements in struct literal")
						continue
					}
					key, _ := kv.Key.(*syntax.Name)
					// do all possible checks early (before exiting due to errors)