tcp_wrap: update after libuv API change

Author: bnoordhuis

src/tcp_wrap.cc

@@ -127,8 +127,10 @@ class TCPWrap : public StreamWrap {
 
     UNWRAP
 
-    int namelen = sizeof(address);
-    int r = uv_getsockname(&wrap->handle_, &address, &namelen);
+    int addrlen = sizeof(address);
+    int r = uv_getsockname(reinterpret_cast<uv_handle_t*>(&wrap->handle_),
+                           reinterpret_cast<sockaddr*>(&address),
+                           &addrlen);
 
     Local<Object> sockname = Object::New();
     if (r != 0) {