Format all tests.

tests/language/async_star_cancel_while_paused_test.dart

Index: tests/language/async_star_cancel_while_paused_test.dart
diff --git a/tests/language/async_star_cancel_while_paused_test.dart b/tests/language/async_star_cancel_while_paused_test.dart
index 633769fc1c3b9bbbc5d37d16a9fd8c22f1ccc6a7..b23d758e88fb368af4752276b32e0850f7ea1786 100644
--- a/tests/language/async_star_cancel_while_paused_test.dart
+++ b/tests/language/async_star_cancel_while_paused_test.dart
@@ -19,7 +19,9 @@ main() {
     list.add("*2");
     yield 2;
     list.add("*3");
-  };
+  }
+
+  ;
   var stream = f();
   var sub = stream.listen(list.add);