Update all tests

tests/language/issue_22780_test.dart

Index: tests/language/issue_22780_test.dart
diff --git a/tests/language/issue_22780_test.dart b/tests/language/issue_22780_test.dart
index 6e54dcfb0b8a3d5a6770f145939f691d2e472f28..34dabd6ed5eeeb911813e4297064626aafb06745 100644
--- a/tests/language/issue_22780_test.dart
+++ b/tests/language/issue_22780_test.dart
@@ -3,5 +3,5 @@
 // BSD-style license that can be found in the LICENSE file.
 
 main() {
-  f() => "Oh, the joy of ${f()}"; print(f()); /// 01: runtime error
+  f() => "Oh, the joy of ${f()}"; print(f()); //# 01: runtime error
 }