[Php80] Do not remove Assert with no arg in AnnotationToAttributeRector (#733)

rules-tests/Php80/Rector/Class_/AnnotationToAttributeRector/FixtureAutoImported/do_not_remove_assert_no_arg.php.inc

@@ -0,0 +1,38 @@
+<?php
+
+namespace Rector\Tests\Php80\Rector\Class_\AnnotationToAttributeRector\FixtureAutoImported;
+
+use Symfony\Component\Validator\Constraints as Assert;
+use Doctrine\ORM\Mapping as ORM;
+
+class User
+{
+    /**
+     * @ORM\Column(type="string", length=27)
+     * @Assert\NotBlank()
+     * @Assert\Length(max=27)
+     */
+    private string $email;
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\Php80\Rector\Class_\AnnotationToAttributeRector\FixtureAutoImported;
+
+use Doctrine\ORM\Mapping\Column;
+use Symfony\Component\Validator\Constraints as Assert;
+use Doctrine\ORM\Mapping as ORM;
+
+class User
+{
+    /**
+     * @Assert\NotBlank()
+     * @Assert\Length(max=27)
+     */
+    #[Column(type: 'string', length: 27)]
+    private string $email;
+}
+
+?>

rules/Php80/PhpDocCleaner/ConvertedAnnotationToAttributeParentRemover.php

@@ -57,7 +57,12 @@ final class ConvertedAnnotationToAttributeParentRemover
         DoctrineAnnotationTagValueNode $doctrineAnnotationTagValueNode,
         array $annotationsToAttributes
     ): bool {
-        foreach ($doctrineAnnotationTagValueNode->getValues() as $nodeValue) {
+        $nodeValues = $doctrineAnnotationTagValueNode->getValues();
+        if ($nodeValues === []) {
+            return false;
+        }
+
+        foreach ($nodeValues as $nodeValue) {
             if (! $nodeValue instanceof CurlyListNode) {
                 return false;
             }