[Tests][Concurrency] Turn off async_taskgroup test for back-deployment.

al45tair · al45tair · commit a5b14d747f93 · 2025-06-12T18:30:42.000+01:00
We don't want to run this test when back-deploying.

rdar://151975988
diff --git a/test/Concurrency/Runtime/async_taskgroup_next_on_pending.swift b/test/Concurrency/Runtime/async_taskgroup_next_on_pending.swift
@@ -8,6 +8,7 @@
 // UNSUPPORTED: OS=watchos
 
 // REQUIRES: concurrency_runtime
+// UNSUPPORTED: back_deployment_runtime
 
 import Dispatch
 
