Format all tests.

tests/lib/mirrors/intercepted_object_test.dart

Index: tests/lib/mirrors/intercepted_object_test.dart
diff --git a/tests/lib/mirrors/intercepted_object_test.dart b/tests/lib/mirrors/intercepted_object_test.dart
index 27e561a6b051ba1d3b6cc1836e3355d4556ae008..b080f9e4974dcaccf6ca9e0ee9efb80aeab05cf9 100644
--- a/tests/lib/mirrors/intercepted_object_test.dart
+++ b/tests/lib/mirrors/intercepted_object_test.dart
@@ -30,7 +30,7 @@ checkImplements(object, String name) {
       return;
     }
   }
- 
+
   // A class implements itself, even if not explicitly declared.
   if (symName == stringify(cls.simpleName)) {
     checkClassMirrorMethods(cls);