Add type hints

Author: clue

src/Client.php

@@ -229,7 +229,7 @@ function ($error) use ($stream, $timerTimeout, $loop) {
         return $deferred->promise();
     }
 
-    protected function handleSocks4($stream, $host, $port)
+    protected function handleSocks4(Stream $stream, $host, $port)
     {
         // do not resolve hostname. only try to convert to IP
         $ip = ip2long($host);

tests/ClientApiTest.php

@@ -1,9 +1,13 @@
 <?php
 
 use Clue\React\Socks;
+use Clue\React\Socks\Client;
 
 class ClientApiTest extends TestCase
 {
+    /** @var  Client */
+    private $client;
+
     public function setUp()
     {
         $loop = React\EventLoop\Factory::create();