Update mirror tests for removed API.

tests/lib/mirrors/static_test.dart

 // Copyright (c) 2013, 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 static members.
 
 import 'dart:mirrors';
 
 import 'stringify.dart';
 
 class Foo {
   static String bar = '...';
   String aux = '';
   static foo() {}
   baz() {}
 }
 
 void main() {
   expect('Variable(s(aux) in s(Foo))',
-         reflectClass(Foo).members[new Symbol('aux')]);
+         reflectClass(Foo).declarations[new Symbol('aux')]);
   expect('Method(s(baz) in s(Foo))',
-         reflectClass(Foo).members[new Symbol('baz')]);
+         reflectClass(Foo).declarations[new Symbol('baz')]);
   expect('<null>',
-         reflectClass(Foo).setters[new Symbol('aux=')]);
+         reflectClass(Foo).declarations[new Symbol('aux=')]);
   expect('Method(s(foo) in s(Foo), static)',
-         reflectClass(Foo).members[new Symbol('foo')]);
+         reflectClass(Foo).declarations[new Symbol('foo')]);
   expect('Variable(s(bar) in s(Foo), static)',
-         reflectClass(Foo).members[new Symbol('bar')]);
+         reflectClass(Foo).declarations[new Symbol('bar')]);
 }