Format all tests.

tests/language_strong/is_not_class2_test.dart

Index: tests/language_strong/is_not_class2_test.dart
diff --git a/tests/language_strong/is_not_class2_test.dart b/tests/language_strong/is_not_class2_test.dart
index 4766fb231971dfc7ff803936699341a9fd8d2c75..f6d348dd4c692bcf955d1a479fef82856a5f5b2b 100644
--- a/tests/language_strong/is_not_class2_test.dart
+++ b/tests/language_strong/is_not_class2_test.dart
@@ -16,7 +16,8 @@ class IsNotClass2NegativeTest {
     var a = new A();
     var aa = new A();
 
-    if (a is aa) { // static warning
+    if (a is aa) {
+      // static warning
       return 0;
     }
     return 0;