Format all tests.

tests/language_strong/closure_side_effect_test.dart

Index: tests/language_strong/closure_side_effect_test.dart
diff --git a/tests/language_strong/closure_side_effect_test.dart b/tests/language_strong/closure_side_effect_test.dart
index 7a68ac89af3a6a9405f0cb8175e918a6b54e201c..95fb941bf5aa6e08a05453a629f356bc7bebc6bf 100644
--- a/tests/language_strong/closure_side_effect_test.dart
+++ b/tests/language_strong/closure_side_effect_test.dart
@@ -17,7 +17,9 @@ class C {
   }
 
   nonInlinable2() {
-    var a = () { b = 42; };
+    var a = () {
+      b = 42;
+    };
     a();
   }
 }