Migrate packages/inputmethods/LatinIME to androidx.test

See go/jetpack-test-android-migration

Test: make checkbuild
Change-Id: I63edeced1465725cd8d6467cd75ea1acc2608932
diff --git a/tests/src/com/android/inputmethod/latin/utils/JsonUtilsTests.java b/tests/src/com/android/inputmethod/latin/utils/JsonUtilsTests.java
index a9e40a7..fd5e0a4 100644
--- a/tests/src/com/android/inputmethod/latin/utils/JsonUtilsTests.java
+++ b/tests/src/com/android/inputmethod/latin/utils/JsonUtilsTests.java
@@ -18,15 +18,15 @@
 
 import static org.junit.Assert.assertEquals;
 
-import android.support.test.filters.SmallTest;
-import android.support.test.runner.AndroidJUnit4;
-
-import java.util.Arrays;
-import java.util.List;
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.util.Arrays;
+import java.util.List;
+
 @SmallTest
 @RunWith(AndroidJUnit4.class)
 public class JsonUtilsTests {