Ensure call_site_data_test runs with unoptimized code so invocation counts are accurate.

runtime/observatory/tests/service/call_site_data_test.dart

Index: runtime/observatory/tests/service/call_site_data_test.dart
diff --git a/runtime/observatory/tests/service/call_site_data_test.dart b/runtime/observatory/tests/service/call_site_data_test.dart
index 017bf9889ca29a41b9784050fca6ee1a0c9fef1e..d6eea4559b17a871c6683a23715aa46a8256cf29 100644
--- a/runtime/observatory/tests/service/call_site_data_test.dart
+++ b/runtime/observatory/tests/service/call_site_data_test.dart
@@ -1,7 +1,8 @@
 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
-// VMOptions=--compile-all --error_on_bad_type --error_on_bad_override --checked
+// VMOptions=--optimization_filter=doesNotExist
+// ^Force code to be unoptimized so the invocation counts are accurate.
 
 library call_site_data_test;