Test for change InlineSuggestionsRequest.getSupportedLocales() to return empty if not specified

Test: atest android.view.inputmethod.cts.InlineSuggestionsRequestTest
Test: atest CtsInputMethodServiceHostTestCases:InlineSuggestionsRequestHostTest
Bug: 169273070

Change-Id: Ibf7bfacf6f4732a849dafe96b8ff16496b0daba5
4 files changed