Format all tests.

tests/language/proxy5_test.dart

Index: tests/language/proxy5_test.dart
diff --git a/tests/language/proxy5_test.dart b/tests/language/proxy5_test.dart
index 41e63e68176581a08292d790b944f1627bca6dc9..68f4d2b4dbb96b2006e321a92f57ed63e9f3e733 100644
--- a/tests/language/proxy5_test.dart
+++ b/tests/language/proxy5_test.dart
@@ -11,10 +11,12 @@ abstract class Mock {
   noSuchMethod(i);
 }
 
-abstract class Foo { int foo(); }
+abstract class Foo {
+  int foo();
+}
 
 class DontWarnMe extends Mock implements Foo {}
 
 main() {
   Expect.throws(() => new DontWarnMe().foo());
-}
+}