Re-land "Format all multitests"

tests/language_strong/mixin_black_listed_test.dart

Index: tests/language_strong/mixin_black_listed_test.dart
diff --git a/tests/language_strong/mixin_black_listed_test.dart b/tests/language_strong/mixin_black_listed_test.dart
index fc8eefec7bebe5879e6a5025d8c1970a4a704850..08ff386d3e2b498e67dfd23c99b23c1e5c0cfd96 100644
--- a/tests/language_strong/mixin_black_listed_test.dart
+++ b/tests/language_strong/mixin_black_listed_test.dart
@@ -7,6 +7,7 @@
 import 'package:expect/expect.dart';
 
 class C {}
+
 class D {}
 
 class C1 extends Object
@@ -17,28 +18,34 @@ class D1 extends Object with C
 , Null //# 02: compile-time error
 {}
 
-class E1 extends Object with
+class E1 extends Object
+    with
 int, //# 03: compile-time error
-C {}
+        C {}
 
-class F1 extends Object with C
+class F1 extends Object
+    with
+        C
 , double //# 04: compile-time error
-, D {}
+        ,
+        D {}
 
 class C2 = Object with num; //# 05: compile-time error
 
 class D2 = Object with C
 , bool //# 06: compile-time error
-;
+    ;
 
-class E2 = Object with
+class E2 = Object
+    with
 String, //# 07: compile-time error
-C;
+        C;
 
-class F2 = Object with C,
+class F2 = Object
+    with
+        C,
 dynamic, //# 08: compile-time error
-D;
-
+        D;
 
 main() {
   Expect.isNotNull(new C1());