Mark async/timer_regress22626_test as failing on dart2js-jsshell.

tests/lib/lib.status

Index: tests/lib/lib.status
diff --git a/tests/lib/lib.status b/tests/lib/lib.status
index acc50917d860b32062310a362615eddc4340961a..3797f593e10f418fab07f0aaff8ad01648c2c6c5 100644
--- a/tests/lib/lib.status
+++ b/tests/lib/lib.status
@@ -132,6 +132,7 @@ mirrors/invocation_fuzz_test/none: RuntimeError # Issue 15566
 mirrors/invocation_fuzz_test: RuntimeError # Issue 15566
 
 [ $compiler == dart2js && $runtime == jsshell ]
+async/timer_regress22626_test: RuntimeError # Non-zero timers not supported; Issue 7728.
 async/future_test: RuntimeError # Timer interface not supported; Issue 7728.
 async/slow_consumer2_test: RuntimeError # Timer interface not supported; Issue 7728.
 async/slow_consumer3_test: RuntimeError # Timer interface not supported; Issue 7728.