test rename overhaul: step 8 - language tests

tests/language/src/NullToStringTest.dart

Index: tests/language/src/NullToStringTest.dart
diff --git a/tests/language/src/NullToStringTest.dart b/tests/language/src/NullToStringTest.dart
deleted file mode 100644
index 19eef3ac41663dc732e9e534841ce6f6fe696e56..0000000000000000000000000000000000000000
--- a/tests/language/src/NullToStringTest.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.
-// Test correct handling of NULL object in invocation and implicit closures.
-
-main() {
-  var nullObj = null;
-  var x = nullObj.toString();
-  Expect.isTrue(x is String);
-  var y = nullObj.toString;
-  Expect.isNotNull(y);
-}