android.os.BadParcelableException: ClassNotFoundException when unmarshalling

### Description

Asserting on activity result extra from `ActivityScenario` results in exception. This was not the case with `ActivityTestRule`.

### Steps to Reproduce

2. Start "picker" activity with `scenario = ActivityScenario.launch(intent)`
3. Simulate result_ok with included parcelable extra
4. Assert on activity result intent extras (which triggers unmarshalling ClassNotFoundException exception) with
```
val activityResult = scenario.result!!
assertThat(activityResult, hasResultCode(RESULT_OK))
assertThat(activityResult, hasResultData(hasExtraWithKey(KEY_SELECTED_CITY)))
```

### Expected Results

Assertion works

### Actual Results
Exception similar to next one:

```
android.os.BadParcelableException: ClassNotFoundException when unmarshalling: my.package.ParcelableAutoCompleteCity
at android.os.Parcel.readParcelableCreator(Parcel.java:3042)
at android.os.Parcel.readParcelable(Parcel.java:2964)
at android.os.Parcel.readValue(Parcel.java:2866)
at android.os.Parcel.readArrayMapInternal(Parcel.java:3244)
at android.os.BaseBundle.initializeFromParcelLocked(BaseBundle.java:292)
at android.os.BaseBundle.unparcel(BaseBundle.java:236)
at android.os.BaseBundle.keySet(BaseBundle.java:562)
at androidx.test.espresso.intent.matcher.BundleMatchers$BundleMatcher.matchesSafely(BundleMatchers.java:47)
at androidx.test.espresso.intent.matcher.BundleMatchers$BundleMatcher.matchesSafely(BundleMatchers.java:35)
at org.hamcrest.TypeSafeMatcher.matches(TypeSafeMatcher.java:67)
at androidx.test.espresso.intent.matcher.IntentMatchers$7.matchesSafely(IntentMatchers.java:215)
at androidx.test.espresso.intent.matcher.IntentMatchers$7.matchesSafely(IntentMatchers.java:206)
at org.hamcrest.TypeSafeMatcher.matches(TypeSafeMatcher.java:67)
at androidx.test.espresso.contrib.ActivityResultMatchers$1.matchesSafely(ActivityResultMatchers.java:46)
at androidx.test.espresso.contrib.ActivityResultMatchers$1.matchesSafely(ActivityResultMatchers.java:37)
at org.hamcrest.TypeSafeMatcher.matches(TypeSafeMatcher.java:67)
at androidx.test.espresso.matcher.ViewMatchers.assertThat(ViewMatchers.java:7)
at androidx.test.espresso.matcher.ViewMatchers.assertThat(ViewMatchers.java:5)
```

### AndroidX Test and Android OS Versions
1.3.0 and sdk29

### Link to a public git repo demonstrating the problem:

I need some guidance. I guess this repo should have already some tests which work on activity result verification. What are they? I would then extend them to include parcelable extra into activity result intent.

### Current workaround

Set classloader explicitly before asserting result

```
val activityResult = scenario.result!!
activityResult.resultData.setExtrasClassLoader(this::class.java.classLoader)
assertThat(activityResult, hasResultCode(RESULT_OK))
assertThat(activityResult, hasResultData(hasExtraWithKey(KEY_SELECTED_CITY)))
```

Inizia con i percorsi ActivityScenario.result, ActivityResultMatchers e BundleMatchers mostrati nello stack trace. Riproduci l’asserzione sugli extra parcelable su SDK 29, poi esamina i test esistenti di verifica dei risultati delle activity ed estendine uno per coprire l’unmarshalling. Il lavoro è completo quando l’asserzione ha esito positivo senza impostare manualmente il class loader degli extra.

Scritto dal modello di indicizzazione a partire dal testo della issue.