[e2e] handle multiple classes with anonymous class on MultipleClassFileToPsr4ClassesRector file removed

[samsonasik]

Given the following code:

final class DemoFile
{
    public function run()
    {
        new class {};
    }
}

On configuration:

<?php

declare (strict_types=1);

use Rector\Config\RectorConfig;
use Rector\PSR4\Rector\Namespace_\MultipleClassFileToPsr4ClassesRector;

return static function (RectorConfig $rectorConfig) : void {
    $rectorConfig->rule(MultipleClassFileToPsr4ClassesRector::class);
};

It cause crash :

➜  multiple-class-psr4 git:(e2e-handle-multiple-class-psr4-anonymous) php ../e2eTestRunner.php 
 1/1 [▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓] 100%! [NOTE] File "./multiple-class-psr4/src/WithAnonymousClass.php" will be added

 ! [NOTE] File
 !        "./multiple-class-psr4/src/AnonymousClass803f48395af26ad9858c7b66bbbe9c19.p
 !        hp" will be added

 [WARNING] File "src/WithAnonymousClass.php" will be removed

Ref https://getrector.org/demo/d6b959e8-3007-4c95-bc92-eb0421236a4c

It only reproducible with e2e test due to on WorkerRunner usage:

rector-src/packages/Parallel/WorkerRunner.php

Line 113 in bce8153

$this->removedAndAddedFilesProcessor->run($configuration);

Fixes rectorphp/rector#7695

[samsonasik]

It reproduced with e2e test https://github.com/rectorphp/rector-src/actions/runs/3774459745/jobs/6416564084

[samsonasik]

Fixed 🎉 with verify anonymous class via ClassAnalyzer->isAnonymousClass() cf463f7

[samsonasik]

All checks have passed 🎉 @TomasVotruba I think it is ready 🎉

[samsonasik]

I also add handling for match and no match class with file 1b65a04 , the diffing will need improvement, but that will require different PR :)

[samsonasik]

This diff require improvement as it actually changed to:

+class ClassMatchFileName implements \App\SomeInterface
+{
+}

when not using --dry-run, but that will need to be in separate PR for improvement :)

[samsonasik]

Finally 🎉 🎉 🎉 All checks have passed 🎉 @TomasVotruba I think it is ready.