Fix errorprone build

Fixes:
packages/apps/Settings/tests/robotests/src/com/android/settings/language/LanguageAndInputSettingsTest.java:95: error: [MockitoCast] A bug in Mockito will cause this test to fail at runtime with a ClassCastException
        when(mContext.getSystemService(AutofillManager.class)).thenReturn(mAutofillManager);
            ^
    (see http://errorprone.info/bugpattern/MockitoCast)
  Did you mean 'when((Object) mContext.getSystemService(AutofillManager.class)).thenReturn(mAutofillManager);'?

packages/apps/Settings/tests/robotests/src/com/android/settings/search/IntentSearchViewHolderTest.java:195: error: [JUnit4TestNotRun] Test method will not be run; please add @Test annotation
    public void testBindViewElements_appSearchResult() {
                ^
    (see http://errorprone.info/bugpattern/JUnit4TestNotRun)
  Did you mean '@Test'?

Bug: 64489631
Test: m -j RUN_ERROR_PRONE=true javac-check
Merged-In: I79477f331ae447d2505a1519da09886bf07ba1a2
Merged-in: I333372699b263d02cc4083289dc746c7aacd414d
Change-Id: I8fd30fc741927de3f6527aca6d98d8851ef23794