moved to exceptions for basic skip/fails

better handling of checkmode and async
fix test to follow new flow control

test/integration/targets/script/tasks/main.yml

@@ -81,5 +81,5 @@
 - name: assert task with async param failed
   assert:
     that:
-      - 'script_result3.failed'
-      - 'script_result3.msg == "async is not supported for this task."'
+      - script_result3|failed
+      - script_result3.msg == "async is not supported for this task."