Allow enabling --causal-async-stacks in AOT.

tests/standalone/standalone.status

Index: tests/standalone/standalone.status
diff --git a/tests/standalone/standalone.status b/tests/standalone/standalone.status
index c7e8b72d68c79c33fdf548e07e9514e3563f8f87..70fd19976ddba2ca0eaa83fdb43df7b19f2efadc 100644
--- a/tests/standalone/standalone.status
+++ b/tests/standalone/standalone.status
@@ -476,6 +476,9 @@ package/scenarios/invalid/non_existent_packages_file_test: CompileTimeError
 package/scenarios/invalid/same_package_twice_test: CompileTimeError
 package/scenarios/packages_dir_only/packages_dir_only_test: CompileTimeError
 
+[ $compiler == dartkp ]
+causal_async_stack_test: Fail
+
 [ $runtime == flutter ]
 io/raw_datagram_socket_test: Crash # Flutter Issue 9115
 verbose_gc_to_bmu_test: RuntimeError # Flutter Issue 9115