Fix http_requested_uri_test for Win/Mac.

tests/standalone/io/http_requested_uri_test.dart

Index: tests/standalone/io/http_requested_uri_test.dart
diff --git a/tests/standalone/io/http_requested_uri_test.dart b/tests/standalone/io/http_requested_uri_test.dart
index e93f0eec36d66b4df6dcaed0f3f09219f203aab2..f573c03fee3a06379fa3da79788cd5aa80aeb28f 100644
--- a/tests/standalone/io/http_requested_uri_test.dart
+++ b/tests/standalone/io/http_requested_uri_test.dart
@@ -11,7 +11,7 @@ const PATH = '/path?a=b#c';
 
 void test(String expected, Map headers) {
   asyncStart();
-  HttpServer.bind("127.0.0.1", 0).then((server) {
+  HttpServer.bind("localhost", 0).then((server) {

[Søren Gjesse, 2014/01/09 08:53:57]

Wheren't the use of localhost the source of sporadic errors on our Mac builders
(once in a while the lookup would return the IPv4 address instead of the IPv6
one)?

[Søren Gjesse, 2014/01/09 09:00:56]

Thinking about this again the issue was only there if two processes where used.

     expected = expected.replaceAll('%PORT', server.port.toString());
     server.listen((request) {
       Expect.equals("$expected$PATH",
@@ -44,6 +44,6 @@ void main() {
   test('https://localhost:%PORT', {'x-forwarded-proto': 'https'});
   test('ws://localhost:%PORT', {'x-forwarded-proto': 'ws'});
   test('http://my-host:321', {'x-forwarded-host': 'my-host:321'});
-  test('http://127.0.0.1:%PORT', {'host': null});
+  test('http://localhost:%PORT', {'host': null});
 }