added temp typedefs for backward compatibility

std/cpp/net/Host.hx

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+package cpp.net;
+
+#if !haxe3
+typedef Host = sys.net.Host;
+#end

std/cpp/net/Socket.hx

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+package cpp.net;
+
+#if !haxe3
+typedef Socket = sys.net.Socket;
+#end

std/neko/net/Host.hx

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+package neko.net;
+
+#if !haxe3
+typedef Host = sys.net.Host;
+#end

std/neko/net/Socket.hx

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+package neko.net;
+
+#if !haxe3
+typedef Socket = sys.net.Socket;
+#end

std/php/net/Host.hx

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+package php.net;
+
+#if !haxe3
+typedef Host = sys.net.Host;
+#end

std/php/net/Socket.hx

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+package php.net;
+
+#if !haxe3
+typedef Socket = sys.net.Socket;
+#end