Replace with in_array() instead of redundant property

Author: zonuexe

src/Type/Php/MinMaxFunctionReturnTypeExtension.php

@@ -19,16 +19,11 @@
 use PHPStan\Type\TypeCombinator;
 use PHPStan\Type\UnionType;
 use function count;
+use function in_array;
 
 class MinMaxFunctionReturnTypeExtension implements DynamicFunctionReturnTypeExtension
 {
 
-/** @var string[] */
-private array $functionNames = [
-'min' => '',
-'max' => '',
-];
-
 public function __construct(
 private PhpVersion $phpVersion,
 )
@@ -37,7 +32,7 @@ public function __construct(
 
 public function isFunctionSupported(FunctionReflection $functionReflection): bool
 {
-return isset($this->functionNames[$functionReflection->getName()]);
+return in_array($functionReflection->getName(), ['min', 'max'], true);
 }
 
 public function getTypeFromFunctionCall(FunctionReflection $functionReflection, FuncCall $functionCall, Scope $scope): Type