Test RemoveNonExistingVarAnnotationRector with static variable in method

Author: mpesari

rules-tests/DeadCode/Rector/Node/RemoveNonExistingVarAnnotationRector/Fixture/skip_static_variable_in_method.php.inc

@@ -0,0 +1,22 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\Node\RemoveNonExistingVarAnnotationRector\Fixture;
+
+final class SkipStaticVariableInMethod
+{
+    public function run(int $param): int
+    {
+        /**
+         * Rector should not remove this @var annotation.
+         *
+         * @var array<int,int>
+         */
+        static $cached_result = [];
+
+        if (!isset($cached_result[$param])) {
+            $cached_result[$param] = doExpensiveCalculation($param);
+        }
+
+        return $cached_result[$param];
+    }
+}