Code generate: support variadic parameter

Author: Evgeny Kalashnikov

lib/internal/Magento/Framework/Code/Generator/ClassGenerator.php

@@ -59,6 +59,7 @@ class ClassGenerator extends \Zend\Code\Generator\ClassGenerator implements
         'type' => 'setType',
         'defaultValue' => 'setDefaultValue',
         'passedByReference' => 'setPassedByReference',
+        'variadic' => 'setVariadic',
     ];
 
     /**

lib/internal/Magento/Framework/Code/Generator/EntityAbstract.php

@@ -313,7 +313,8 @@ protected function _getMethodParameterInfo(\ReflectionParameter $parameter)
         $parameterInfo = [
             'name' => $parameter->getName(),
             'passedByReference' => $parameter->isPassedByReference(),
-            'type' => $parameter->getType()
+            'type' => $parameter->getType(),
+            'variadic' => $parameter->isVariadic()
         ];
 
         if ($parameter->isArray()) {

lib/internal/Magento/Framework/Interception/Code/Generator/Interceptor.php

@@ -130,7 +130,13 @@ protected function _getParameterList(array $parameters)
             ', ',
             array_map(
                 function ($item) {
-                    return "$" . $item['name'];
+                    $output = '';
+                    if ($item['variadic']) {
+                        $output .= '... ';
+                    }
+
+                    $output .="\${$item['name']}";
+                    return $output;
                 },
                 $parameters
             )