Remove iterator part

Author: VincentLanglet

src/Type/UnionType.php

@@ -7,8 +7,6 @@
 use DateTimeInterface;
 use Error;
 use Exception;
-use Iterator;
-use IteratorAggregate;
 use PHPStan\Php\PhpVersion;
 use PHPStan\PhpDocParser\Ast\Type\TypeNode;
 use PHPStan\PhpDocParser\Ast\Type\UnionTypeNode;
@@ -31,7 +29,6 @@
 use PHPStan\Type\Generic\TemplateUnionType;
 use PHPStan\Type\Traits\NonGeneralizableTypeTrait;
 use Throwable;
-use Traversable;
 use function array_diff_assoc;
 use function array_fill_keys;
 use function array_map;
@@ -54,7 +51,6 @@ class UnionType implements CompoundType
 	public const EQUAL_UNION_CLASSES = [
 		DateTimeInterface::class => [DateTimeImmutable::class, DateTime::class],
 		Throwable::class => [Error::class, Exception::class], // phpcs:ignore SlevomatCodingStandard.Exceptions.ReferenceThrowableOnly.ReferencedGeneralException
-		Traversable::class => [IteratorAggregate::class, Iterator::class],
 	];
 
 	private bool $sortedTypes = false;

tests/PHPStan/Rules/Methods/ReturnTypeRuleTest.php

@@ -1064,9 +1064,4 @@ public function testBug11857(): void
 		$this->analyse([__DIR__ . '/data/bug-11857-builder.php'], []);
 	}
 
-	public function testBug12102(): void
-	{
-		$this->analyse([__DIR__ . '/data/bug-12102.php'], []);
-	}
-
 }