Format all tests.

tests/language_strong/type_argument_substitution_test.dart

Index: tests/language_strong/type_argument_substitution_test.dart
diff --git a/tests/language_strong/type_argument_substitution_test.dart b/tests/language_strong/type_argument_substitution_test.dart
index 1383c4f67778b0de7ebab7ee60b627c0ad32a188..cca72f01f67f5fdd2fd6e3840a67417f0a4e8e3f 100644
--- a/tests/language_strong/type_argument_substitution_test.dart
+++ b/tests/language_strong/type_argument_substitution_test.dart
@@ -17,6 +17,7 @@ class X<T> {}
 
 main() {
   var v = new DateTime.now().millisecondsSinceEpoch != 42
-    ? new X<B>() : new X<A<String>>();
+      ? new X<B>()
+      : new X<A<String>>();
   Expect.isFalse(v is X<A<String>>);
 }