Format all tests.

tests/language_strong/param1_test.dart

Index: tests/language_strong/param1_test.dart
diff --git a/tests/language_strong/param1_test.dart b/tests/language_strong/param1_test.dart
index c2546663b8a57b51d0b8422607a141e3a9a72cde..4c8c0a08d6988f8642bcb8da49bfbff8e9166114 100644
--- a/tests/language_strong/param1_test.dart
+++ b/tests/language_strong/param1_test.dart
@@ -8,10 +8,11 @@ class Param1Test {
   // avoid a type error with --enable_type_checks, the type of i below is
   // changed from int to String.
   // static int testMain(String s, int i) { return i; }
-  static int testMain() { return 0; }
+  static int testMain() {
+    return 0;
+  }
 }
 
-
 main() {
   Param1Test.testMain();
 }