Format all tests.

tests/language_strong/named_parameters3_test.dart

Index: tests/language_strong/named_parameters3_test.dart
diff --git a/tests/language_strong/named_parameters3_test.dart b/tests/language_strong/named_parameters3_test.dart
index d738ad7864e38cea35d4f4735f099ee6fc9b006e..b4ffccd3ab841ffdfb7edee175a0c40b7ed7321f 100644
--- a/tests/language_strong/named_parameters3_test.dart
+++ b/tests/language_strong/named_parameters3_test.dart
@@ -13,7 +13,7 @@ int test(int a, [int b]) {
 main() {
   bool foundError = false;
   try {
-    test(10, x:99);  // 1 positional arg, as expected. Param x does not exist.
+    test(10, x: 99); // 1 positional arg, as expected. Param x does not exist.
   } on NoSuchMethodError catch (e) {
     foundError = true;
   }