Update language.status and rewrite some tests

tests/language/constructor_return_with_init_and_arrow_negative_test.dart

Index: tests/language/constructor_return_with_init_and_arrow_negative_test.dart
diff --git a/tests/language/constructor_return_with_init_and_arrow_negative_test.dart b/tests/language/constructor_return_with_init_and_arrow_negative_test.dart
deleted file mode 100644
index 45d5f8ae9afc185e5c1a90c3ea15fa2d47d74ea7..0000000000000000000000000000000000000000
--- a/tests/language/constructor_return_with_init_and_arrow_negative_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2011, 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.
-
-class A {
-  int value;
-  A(): value = 1 => null;
-}
-
-main() {
-  new A();
-}