Fix type for container of inet_addr result on Win.

runtime/bin/socket_win.cc

 // Copyright (c) 2012, 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.
 
 #include "bin/builtin.h"
 #include "bin/eventhandler.h"
 #include "bin/socket.h"
 
 bool Socket::Initialize() {
   int err;
@@ skipping 193 matching lines @@
     free(buffer);
     return NULL;
   }
   return buffer;
 }
 
 
 intptr_t ServerSocket::CreateBindListen(const char* host,
                                         intptr_t port,
                                         intptr_t backlog) {
-  in_addr_t s_addr = TEMP_FAILURE_RETRY(inet_addr(host));
+  unsigned long s_addr = TEMP_FAILURE_RETRY(inet_addr(host));  // NOLINT
   if (s_addr == INADDR_NONE) {
     return -5;
   }
 
   SOCKET s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
   if (s == INVALID_SOCKET) {
     return -1;
   }
 
   BOOL optval = true;
@@ skipping 28 matching lines @@
   if (status == SOCKET_ERROR) {
     DWORD rc = WSAGetLastError();
     closesocket(s);
     SetLastError(rc);
     return -1;
   }
 
   ListenSocket* listen_socket = new ListenSocket(s);
   return reinterpret_cast<intptr_t>(listen_socket);
 }