Temporarily skip flaky tests for DBC

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 68101378d8b3a390d1ab8d0011362cd29001dfa4..fa58842618703f2c3070e6565268b8d41fe1ec25 100644
--- a/runtime/observatory/tests/service/service.status
+++ b/runtime/observatory/tests/service/service.status
@@ -59,6 +59,8 @@ evaluate_activation_in_method_class_test: CompileTimeError # Issue 24478
 get_allocation_samples_test: RuntimeError # Profiling unimplemented.
 get_cpu_profile_timeline_rpc_test: RuntimeError # Profiling unimplemented.
 implicit_getter_setter_test: RuntimeError # Field guards unimplemented.
+debugger_location_second_test: Skip # Issue #27746
+debugger_location_test: Skip # Issue #27746
 
 [ $hot_reload || $hot_reload_rollback ]
 # Skip all service tests because random reloads interfere.