[NFC][Asan] Fix warning in test (#155447)

After #150028.

Warning:
```
asan_test.cpp:398:27: error: allocation of insufficient size '0' for type 'int' with size '4'
```
GitOrigin-RevId: 5953e07c8cae6e60bfa7bdafecd7b398cfe9ba4a
1 file changed