https: optimize https.createConnection()

Stop using `arguments` for performance and readability.

lib/https.js

@@ -57,26 +57,25 @@ exports.createServer = function(opts, requestListener) {
 
 // HTTPS agents.
 
-function createConnection(/* [port, host, options] */) {
-  var options = {};
-
-  if (typeof arguments[0] === 'object') {
-    options = arguments[0];
-  } else if (typeof arguments[1] === 'object') {
-    options = arguments[1];
-    options.port = arguments[0];
-  } else if (typeof arguments[2] === 'object') {
-    options = arguments[2];
-    options.port = arguments[0];
-    options.host = arguments[1];
+function createConnection(port, host, options) {
+  if (typeof port === 'object') {
+    options = port;
+  } else if (typeof host === 'object') {
+    options = host;
+  } else if (typeof options === 'object') {
+    options = options;
   } else {
-    if (typeof arguments[0] === 'number') {
-      options.port = arguments[0];
-    }
-    if (typeof arguments[1] === 'string') {
-      options.host = arguments[1];
-    }
+    options = {};
+  }
+
+  if (typeof port === 'number') {
+    options.port = port;
   }
+
+  if (typeof host === 'string') {
+    options.host = host;
+  }
+
   return tls.connect(options);
 }