Status file tweak

runtime/observatory/tests/service/service.status

Index: runtime/observatory/tests/service/service.status
diff --git a/runtime/observatory/tests/service/service.status b/runtime/observatory/tests/service/service.status
index 1e49905b330d944292d6d05dbfda2b4428babac4..9bba63bbca92d71170c108cdcfc5abe38e9d2297 100644
--- a/runtime/observatory/tests/service/service.status
+++ b/runtime/observatory/tests/service/service.status
@@ -13,6 +13,11 @@ evaluate_activation_test/instance: RuntimeError # http://dartbug.com/20047
 evaluate_activation_test/scope: RuntimeError # http://dartbug.com/20047
 isolate_lifecycle_test: Pass, RuntimeError # Issue 24174
 
+# Debugger location tests are slow in debug mode.
+[ $mode == debug ]
+debugger_location_second_test: Slow
+debugger_location_test: Slow
+
 # Disable on simulators.
 [ $arch == simarm || $arch == simmips || $arch == simarm64 ]
 *: SkipSlow