stage1 将数组和聚合类型使用byte offset而不是slot idx

stage1/test17_integration.spl

@@ -22,8 +22,6 @@ fn fib(n: i32) i32 {
 }
 
 fn main() i32 {
-    vm_printf("=== integration test ===\n");
-
     /* 综合：指针 + 结构体 + 函数 */
     var p1: Point;
     p1.x = 3;
@@ -92,9 +90,6 @@ fn main() i32 {
         }
         j = j + 1;
     }
-    if outer_sum != 9 { ret 8; }
-
-    vm_printf("=== all integration tests passed ===\n");
-
+    if outer_sum != 3 { ret 8; }
     ret 0;
 }