Use androidx.test instead of android.support.test

This CL mechanically changes package name of AndroidJUnitRunner, test
annotation classes, test filter classes, and etc. from android.support.test
to androidx.test.

This CL also copies WidgetTestUtils#runOnMainAndDrawSync() helper method
from CTS and eliminates compatibility-device-util from dependency.

Bug: None
Exempt-From-Owner-Approval: Large-scale refactor
Test: Run all non-flaky presubmit tests in FrameworksCoreTests
  $ tradefed.sh run commandAndExit FrameworksCoreTests \
        --include-annotation android.platform.test.annotations.Presubmit \
	--exclude-annotation androidx.test.filters.FlakyTest
  430 tests pass.
Change-Id: Ia65c4f643961afaa01c2c8d4b271712e574eb45c
diff --git a/core/tests/coretests/src/android/content/pm/PackageParserTest.java b/core/tests/coretests/src/android/content/pm/PackageParserTest.java
index 3f91a65..be1b1ce 100644
--- a/core/tests/coretests/src/android/content/pm/PackageParserTest.java
+++ b/core/tests/coretests/src/android/content/pm/PackageParserTest.java
@@ -29,9 +29,10 @@
 import android.os.Bundle;
 import android.os.FileUtils;
 import android.os.SystemProperties;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.InstrumentationRegistry;
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
 
 import com.android.frameworks.coretests.R;