Make showHide combinators work with getter/setter names

tests/language/import_show_test.dart

Index: tests/language/import_show_test.dart
===================================================================
--- tests/language/import_show_test.dart	(revision 0)
+++ tests/language/import_show_test.dart	(revision 0)
@@ -0,0 +1,13 @@
+// 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.
+
+library import_show_test;
+
+import "package:expect/expect.dart";
+import "import_show_lib.dart" show theEnd;
+
+main() {
+  var foo = theEnd;
+  Expect.equals("http://www.endoftheinternet.com/", foo);
+}