Fix coding standard violations in CastStringHandler and MethodThrowPointHelper

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: phpstan-bot

src/Analyser/ExprHandler/CastStringHandler.php

@@ -64,7 +64,7 @@ public function processExpr(NodeScopeResolver $nodeScopeResolver, Stmt $stmt, Ex
 					$toStringMethod,
 					$toStringMethod->getOnlyVariant(),
 					new Expr\MethodCall($expr->expr, new Identifier('__toString')),
-					$scope
+					$scope,
 				);
 				if ($throwPoint !== null) {
 					$throwPoints[] = $throwPoint;

src/Analyser/ExprHandler/Helper/MethodThrowPointHelper.php

@@ -16,6 +16,7 @@
 use ReflectionFunction;
 use ReflectionMethod;
 use Throwable;
+use function in_array;
 
 #[AutowiredService]
 final class MethodThrowPointHelper