Format all tests.

tests/language_strong/function_subtype_closure0_test.dart

Index: tests/language_strong/function_subtype_closure0_test.dart
diff --git a/tests/language_strong/function_subtype_closure0_test.dart b/tests/language_strong/function_subtype_closure0_test.dart
index 1d6437bcfb21d50ef8a97976f275b680e265d625..47ace663a4e7f96dc11358c1d692995353120821 100644
--- a/tests/language_strong/function_subtype_closure0_test.dart
+++ b/tests/language_strong/function_subtype_closure0_test.dart
@@ -18,10 +18,10 @@ class C<T> {
 }
 
 class I<T> {}
+
 class J<T> extends I<int> {}
 
 main() {
-
   bool inCheckedMode = false;
   try {
     String a = 42;
@@ -33,4 +33,4 @@ main() {
   if (inCheckedMode) {
     Expect.throws(() => new C<bool>(X.f1), (e) => true);
   }
-}
+}