[DeadDocBlock] Skip RemoveUselessReturnTagRector on Generic Type (#5675)

rules/dead-doc-block/src/DeadReturnTagValueNodeAnalyzer.php

@@ -6,6 +6,7 @@
 
 use PhpParser\Node\FunctionLike;
 use PHPStan\PhpDocParser\Ast\PhpDoc\ReturnTagValueNode;
+use Rector\AttributeAwarePhpDoc\Ast\Type\AttributeAwareGenericTypeNode;
 use Rector\NodeTypeResolver\TypeComparator\TypeComparator;
 
 final class DeadReturnTagValueNodeAnalyzer
@@ -33,6 +34,10 @@ public function isDead(ReturnTagValueNode $returnTagValueNode, FunctionLike $fun
             return false;
         }
 
+        if ($returnTagValueNode->type instanceof AttributeAwareGenericTypeNode) {
+            return false;
+        }
+
         return $returnTagValueNode->description === '';
     }
 }

rules/dead-doc-block/tests/Rector/ClassMethod/RemoveUselessReturnTagRector/Fixture/skip_generic_type.php.inc

@@ -0,0 +1,16 @@
+<?php
+
+namespace Rector\DeadDocBlock\Tests\Rector\ClassMethod\RemoveUselessReturnTagRector\Fixture;
+
+use stdClass;
+
+final class SkipGenericType
+{
+    /**
+     * @return iterable<stdClass>
+     */
+    public function run(): iterable
+    {
+        yield new stdClass;
+    }
+}