Report a peer address over IPv4 as IPv4.

tests/standalone/io/socket_info_ipv6_test.dart

Index: tests/standalone/io/socket_info_ipv6_test.dart
diff --git a/tests/standalone/io/socket_info_test.dart b/tests/standalone/io/socket_info_ipv6_test.dart
similarity index 59%
rename from tests/standalone/io/socket_info_test.dart
rename to tests/standalone/io/socket_info_ipv6_test.dart
index eb14246bc618a35db6cad794d2fe5c205bc553be..d6969abf63a4db07bc8c395138101b86ad5ba5c2 100644
--- a/tests/standalone/io/socket_info_test.dart
+++ b/tests/standalone/io/socket_info_ipv6_test.dart
@@ -6,15 +6,19 @@ import "package:expect/expect.dart";
 import "dart:io";
 
 void testHostAndPort() {
-  ServerSocket.bind("127.0.0.1", 0).then((server) {
+  ServerSocket.bind("::1", 0).then((server) {
 
-    Socket.connect("127.0.0.1", server.port).then((clientSocket) {
+    Socket.connect("::1", server.port).then((clientSocket) {
       server.listen((socket) {
         Expect.equals(socket.port, server.port);
         Expect.equals(clientSocket.port, socket.remotePort);
         Expect.equals(clientSocket.remotePort, socket.port);
-        Expect.equals(socket.remoteAddress.address, "127.0.0.1");
-        Expect.equals(clientSocket.remoteAddress.address, "127.0.0.1");
+        Expect.equals(socket.remoteAddress.address, "::1");
+        Expect.equals(socket.remoteAddress.type,
+                      InternetAddressType.IP_V6);
+        Expect.equals(clientSocket.remoteAddress.address, "::1");
+        Expect.equals(clientSocket.remoteAddress.type,
+                      InternetAddressType.IP_V6);
         socket.destroy();
         clientSocket.destroy();
         server.close();