message: fix alignment check on pointer
diff: @@ -266,7 +266,7 @@ pub fn ___syscall140(ctx: &mut Ctx, _which: i32, mut varargs: VarArgs) -> i32 {
  let ret = unsafe { lseek(fd, offset, whence) as i32 };
  #[allow(clippy::cast_ptr_alignment)]
  let result_ptr = emscripten_memory_pointer!(ctx.memory(0), result_ptr_value) as *mut i32;
  - assert_eq!(4, mem::align_of_val(&result_ptr));
  + assert_eq!(8, mem::align_of_val(&result_ptr));
  unsafe {
  *result_ptr = ret;
  }
  