refactor to use validateObject

Author: deokjinkim

lib/_http_server.js

@@ -75,7 +75,6 @@ const {
   ERR_HTTP_HEADERS_SENT,
   ERR_HTTP_INVALID_STATUS_CODE,
   ERR_HTTP_SOCKET_ENCODING,
-  ERR_INVALID_ARG_TYPE,
   ERR_INVALID_ARG_VALUE,
   ERR_INVALID_CHAR
 } = codes;
@@ -503,10 +502,10 @@ function Server(options, requestListener) {
   if (typeof options === 'function') {
     requestListener = options;
     options = {};
-  } else if (options == null || (typeof options === 'object' && !ArrayIsArray(options))) {
-    options = { ...options };
+  } else if (options == null) {
+    options = {};
   } else {
-    throw new ERR_INVALID_ARG_TYPE('options', 'object', options);
+    validateObject(options, 'options');
   }
 
   storeHTTPOptions.call(this, options);