include cleanup

src/net/AddressInfo.hxx

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2019 Max Kellermann <max.kellermann@gmail.com>
+ * Copyright 2016-2020 Max Kellermann <max.kellermann@gmail.com>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -31,13 +31,14 @@
 #define NET_ADDRESS_INFO_HXX
 
 #include "SocketAddress.hxx"
+#include "util/Compiler.h"
 
 #include <utility>
 
 #ifdef _WIN32
-#include <ws2tcpip.h>
+#include <ws2tcpip.h> // IWYU pragma: export
 #else
-#include <netdb.h>
+#include <netdb.h> // IWYU pragma: export
 #endif
 
 constexpr struct addrinfo