#1581. Remove use of Deprecated.expires (#1584)

Authored by @sgrekhov

Author: sgrekhov

LibTest/core/Deprecated/Deprecated_A01_t01.dart

@@ -2,11 +2,11 @@
 // 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.
 
-/// @assertion const Deprecated(String expires)
-/// Create a deprecation annotation which specifies the expiration of the
-/// annotated feature.
+/// @assertion const Deprecated(String message)
+/// Create a deprecation annotation which specifies the migration path and
+/// expiration of the annotated feature..
 /// @description Checks that this constructor can be called and returns instance
-/// of Deprecated with correct expires value
+/// of Deprecated with the correct message
 /// @author [email protected]
 
 import "../../../Utils/expect.dart";

LibTest/mirrors/before_library_lib1.dart

@@ -2,6 +2,5 @@
 // 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.
 
-
 @Deprecated('before_library_lib1')
 library before_library_lib1;

LibTest/mirrors/before_library_t01.dart

@@ -11,9 +11,8 @@ import '../../Utils/expect.dart';
 
 import 'before_library_lib1.dart';
 
-
 main() {
   Symbol libraryName = MirrorSystem.getSymbol('before_library_lib1');
   var metadata = currentMirrorSystem().findLibrary(libraryName).metadata;
-  Expect.equals('before_library_lib1', metadata[0].reflectee.expires);
+  Expect.equals('before_library_lib1', metadata[0].reflectee.message);
 }