Mark new debugging stuff as flaky as it fails on mac/win/whatnot

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 9781f4372065d708737ed1f0910fee88fcb1dc5f..09248a4d8a3eeda002f6328a4fbccacce759ecd1 100644
--- a/runtime/observatory/tests/service/service.status
+++ b/runtime/observatory/tests/service/service.status
@@ -9,6 +9,15 @@ get_retained_size_rpc_test: Pass, RuntimeError # Issue 28193
 pause_on_start_and_exit_test: Pass, RuntimeError # Issue 28624
 pause_on_start_then_step_test: Pass, RuntimeError # Issue 28624
 isolate_lifecycle_test: Pass, RuntimeError # Issue 24174
+field_script_test: Pass, RuntimeError
+next_through_for_each_loop_test: Pass, RuntimeError
+next_through_create_list_and_map_test: Pass, RuntimeError
+next_through_closure_test: Pass, RuntimeError
+next_through_for_loop_with_break_and_continue_test: Pass, RuntimeError
+next_through_simple_async_test: Pass, RuntimeError
+next_through_simple_async_with_returns_test: Pass, RuntimeError
+next_through_catch_test: Pass, RuntimeError
+next_through_simple_linear_2_test: Pass, RuntimeError
 
 [$runtime == vm && $compiler == none && $system == fuchsia]
 *: Skip  # Not yet triaged.