Improve sniff check to see if it should bail early for a given function

Author: rodrigoprimo

src/Standards/Generic/Sniffs/CodeAnalysis/UselessOverridingMethodSniff.php

@@ -28,6 +28,18 @@
 class UselessOverridingMethodSniff implements Sniff
 {
 
+    /**
+     * List of class and trait tokens. Used to detect functions that
+     * are part of a class, anon class or trait.
+     *
+     * @var array
+     */
+    private $classAndTraitTokens = [
+        T_CLASS      => true,
+        T_ANON_CLASS => true,
+        T_TRAIT      => true,
+    ];
+
 
     /**
      * Registers the tokens that this sniff wants to listen for.
@@ -64,7 +76,7 @@ public function process(File $phpcsFile, $stackPtr)
         $lastCondition = end($conditions);
 
         // Skip functions that are not a method part of a class, anon class or trait.
-        if (in_array($lastCondition, [T_CLASS, T_ANON_CLASS, T_TRAIT]) === false) {
+        if (isset($this->classAndTraitTokens[$lastCondition]) === false) {
             return;
         }