Fix dangling SingleImplementations left after class unloading

Test: make test-art-host, manual using sample code

bug: 73143991

Change-Id: I4d56b39c69d4ed60266a8b90b9e9d18fba7b8227
diff --git a/test/Android.bp b/test/Android.bp
index 17a5042..0c1edca 100644
--- a/test/Android.bp
+++ b/test/Android.bp
@@ -429,6 +429,7 @@
         "596-app-images/app_images.cc",
         "596-monitor-inflation/monitor_inflation.cc",
         "597-deopt-new-string/deopt.cc",
+        "616-cha-unloading/cha_unload.cc",
         "626-const-class-linking/clear_dex_cache_types.cc",
         "642-fp-callees/fp_callees.cc",
         "647-jni-get-field-id/get_field_id.cc",