Re-land "Format all multitests"

tests/language_strong/black_listed_test.dart

Index: tests/language_strong/black_listed_test.dart
diff --git a/tests/language_strong/black_listed_test.dart b/tests/language_strong/black_listed_test.dart
index 43e355465928846f94c5aca7c5bace6b93580fec..a575375b86a94bedd66b266af2f57b6ed3d8155c 100644
--- a/tests/language_strong/black_listed_test.dart
+++ b/tests/language_strong/black_listed_test.dart
@@ -38,6 +38,7 @@ abstract class MyStringInterface implements String default F { // //# 10: compil
 
 // Function.
 class MyFunction implements Function {}
+
 class MyOtherFunction extends Function {}
 abstract class MyFunctionInterface implements Function default F { // //# 12: compile-time error
   MyFunctionInterface(); //                                   //# 12: continued
@@ -49,7 +50,6 @@ abstract class MyDynamicInterface implements dynamic default F { //  //# 14: com
   MyDynamicInterface(); //                                   //# 14: continued
 } //                                                         //# 14: continued
 
-
 class F {
   factory MyBoolInterface() { return null; } //     //# 02: continued
   factory MyNumInterface() { return null; } //      //# 04: continued
@@ -60,7 +60,6 @@ class F {
   factory MyDynamicInterface() { return null; } //  //# 14: continued
 }
 
-
 main() {
   new MyBool(); //             //# 01: continued
   new MyBoolInterface(); //    //# 02: continued