Mark deferred worker test as failing on Safari.

tests/compiler/dart2js_extra/dart2js_extra.status

Index: tests/compiler/dart2js_extra/dart2js_extra.status
diff --git a/tests/compiler/dart2js_extra/dart2js_extra.status b/tests/compiler/dart2js_extra/dart2js_extra.status
index 9be2aea81962a1a36079c6e5cc43aa53b1463922..188549fb6084594a4e9f000bf47eb5934aac9356 100644
--- a/tests/compiler/dart2js_extra/dart2js_extra.status
+++ b/tests/compiler/dart2js_extra/dart2js_extra.status
@@ -37,6 +37,9 @@ runtime_type_test: Fail, OK # Tests extected output of Type.toString().
 code_motion_exception_test: Skip  # Requires unminified operator names.
 mirrors_used_warning_test/minif: Fail, OK # Tests warning that minified code will be broken.
 
+[ $compiler == dart2js && $runtime == safari ]
+deferred_fail_and_retry_worker_test: Timeout  # Issue 22106
+
 [ $compiler == dart2js && ($runtime == drt || $runtime == ff || $runtime == safari || $runtime == jsshell) ]
 code_motion_exception_test: Skip  # Required V8 specific format of JavaScript errors.