Revert "Fix language tests wrt. warnings."

tests/language/closure_type_test.dart

Index: tests/language/closure_type_test.dart
diff --git a/tests/language/closure_type_test.dart b/tests/language/closure_type_test.dart
index 5b8eea2640a9db822059475671315535aa7df679..59d11de19e588c24d0588aabca4491e2987f329c 100644
--- a/tests/language/closure_type_test.dart
+++ b/tests/language/closure_type_test.dart
@@ -1,7 +1,6 @@
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
-
 // Dart test for a closure result type test that cannot be eliminated at compile
 // time.
 
@@ -10,9 +9,7 @@ import "package:expect/expect.dart";
 import 'dart:math' as math;
 
 class Math {
-  static
-  int  /// 01: static type warning
-  sqrt(x) => math.sqrt(x);
+  static int sqrt(x) => math.sqrt(x);
 }
 
 isCheckedMode() {