Optimize perf by replacing call_user_func with dynamic vars

Author: ostrolucky

Debug/OptionsResolverIntrospector.php

@@ -47,7 +47,7 @@ public function __construct(OptionsResolver $optionsResolver)
      */
     public function getDefault(string $option)
     {
-        return \call_user_func($this->get, 'defaults', $option, sprintf('No default value was set for the "%s" option.', $option));
+        return ($this->get)('defaults', $option, sprintf('No default value was set for the "%s" option.', $option));
     }
 
     /**
@@ -57,7 +57,7 @@ public function getDefault(string $option)
      */
     public function getLazyClosures(string $option): array
     {
-        return \call_user_func($this->get, 'lazy', $option, sprintf('No lazy closures were set for the "%s" option.', $option));
+        return ($this->get)('lazy', $option, sprintf('No lazy closures were set for the "%s" option.', $option));
     }
 
     /**
@@ -67,7 +67,7 @@ public function getLazyClosures(string $option): array
      */
     public function getAllowedTypes(string $option): array
     {
-        return \call_user_func($this->get, 'allowedTypes', $option, sprintf('No allowed types were set for the "%s" option.', $option));
+        return ($this->get)('allowedTypes', $option, sprintf('No allowed types were set for the "%s" option.', $option));
     }
 
     /**
@@ -77,14 +77,14 @@ public function getAllowedTypes(string $option): array
      */
     public function getAllowedValues(string $option): array
     {
-        return \call_user_func($this->get, 'allowedValues', $option, sprintf('No allowed values were set for the "%s" option.', $option));
+        return ($this->get)('allowedValues', $option, sprintf('No allowed values were set for the "%s" option.', $option));
     }
 
     /**
      * @throws NoConfigurationException on no configured normalizer
      */
     public function getNormalizer(string $option): \Closure
     {
-        return \call_user_func($this->get, 'normalizers', $option, sprintf('No normalizer was set for the "%s" option.', $option));
+        return ($this->get)('normalizers', $option, sprintf('No normalizer was set for the "%s" option.', $option));
     }
 }