Format all tests.

tests/language/function_subtype_typearg3_test.dart

Index: tests/language/function_subtype_typearg3_test.dart
diff --git a/tests/language/function_subtype_typearg3_test.dart b/tests/language/function_subtype_typearg3_test.dart
index 723e090012d6615fdb76c761709722eb9680d463..e39c2ed3616ce72880cd13b4ac9781741b947d47 100644
--- a/tests/language/function_subtype_typearg3_test.dart
+++ b/tests/language/function_subtype_typearg3_test.dart
@@ -10,6 +10,7 @@ import 'package:expect/expect.dart';
 class C<T> {}
 
 class I {}
+
 class J extends I {}
 
 typedef J f1();
@@ -17,4 +18,4 @@ typedef I f2();
 
 main() {
   Expect.isTrue(new C<f1>() is C<f2>);
-}
+}