[Parallel] Display stack trace on --debug on parallel

[samsonasik]

Fixes rectorphp/rector#7254

Before

[file] src/Config/Loader/ConfigureCallMergingLoaderFactory.php
[rule] Rector\DeadCode\Rector\Property\RemoveUnusedPrivatePropertyRector
                                                                                                                        
 [ERROR] Could not process "src/Config/Loader/ConfigureCallMergingLoaderFactory.php" file, due to:                      
         "System error: "Look at "Rector\DeadCode\Rector\Property\RemoveUnusedPrivatePropertyRector::refactor()":111"   
         Run Rector with "--debug" option and post the report here: https://github.com/rectorphp/rector/issues/new". On 
         line: 111         

After

[file] src/Config/Loader/ConfigureCallMergingLoaderFactory.php
[rule] Rector\DeadCode\Rector\Property\RemoveUnusedPrivatePropertyRector

[ERROR] Could not process "src/Config/Loader/ConfigureCallMergingLoaderFactory.php" file, due to:                      
         "System error: "Look at "Rector\DeadCode\Rector\Property\RemoveUnusedPrivatePropertyRector::refactor()":111"   
                                                                                                                        
         Stack trace:                                                                                                   
         #0 src/Rector/AbstractRector.php(218):                                                                         
         Rector\DeadCode\Rector\Property\RemoveUnusedPrivatePropertyRector->refactor(Object(PhpParser\Node\Stmt\Class_))
         #1 vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php(200):                                               
         Rector\Core\Rector\AbstractRector->enterNode(Object(PhpParser\Node\Stmt\Class_))                               
         #2 vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php(114): PhpParser\NodeTraverser->traverseArray(Array) 
         #3 vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php(223):                                               
         PhpParser\NodeTraverser->traverseNode(Object(PhpParser\Node\Stmt\Namespace_))                                  
         #4 vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php(91): PhpParser\NodeTraverser->traverseArray(Array)  
         #5 src/PhpParser/NodeTraverser/RectorNodeTraverser.php(33): PhpParser\NodeTraverser->traverse(Array)           
         #6 src/Application/FileProcessor.php(42): Rector\Core\PhpParser\NodeTraverser\RectorNodeTraverser->traverse(Array)
         #7 src/Application/FileProcessor/PhpFileProcessor.php(103):                                                    
         Rector\Core\Application\FileProcessor->refactor(Object(Rector\Core\ValueObject\Application\File),              
         Object(Rector\Core\ValueObject\Configuration))                                                                 
         #8 src/Application/FileProcessor/PhpFileProcessor.php(62):                                                     
         Rector\Core\Application\FileProcessor\PhpFileProcessor->refactorNodesWithRectors(Object(Rector\Core\ValueObject\Applica
         tion\File), Object(Rector\Core\ValueObject\Configuration))                                                     
         #9 packages/Parallel/WorkerRunner.php(92):                                                                     
         Rector\Core\Application\FileProcessor\PhpFileProcessor->process(Object(Rector\Core\ValueObject\Application\File),
         Object(Rector\Core\ValueObject\Configuration))                                                                 
         #10 vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(123):                                       
         Rector\Parallel\WorkerRunner->Rector\Parallel\{closure}(Array)                                                 
         #11 vendor/clue/ndjson-react/src/Decoder.php(131): Evenement\EventEmitter->emit('data', Array)                 
         #12 vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(123): Clue\React\NDJson\Decoder->handleData(Array)
         #13 vendor/react/stream/src/Util.php(71): Evenement\EventEmitter->emit('data', Array)                          
         #14 vendor/evenement/evenement/src/Evenement/EventEmitterTrait.php(123):                                       
         React\Stream\Util::React\Stream\{closure}('{"action":"main...')                                                
         #15 vendor/react/stream/src/DuplexResourceStream.php(196): Evenement\EventEmitter->emit('data', Array)         
         #16 vendor/react/event-loop/src/StreamSelectLoop.php(246): React\Stream\DuplexResourceStream->handleData(Resource id
         #3325)                                                                                                         
         #17 vendor/react/event-loop/src/StreamSelectLoop.php(213):                                                     
         React\EventLoop\StreamSelectLoop->waitForStreamActivity(NULL)                                                  
         #18 src/Console/Command/WorkerCommand.php(66): React\EventLoop\StreamSelectLoop->run()                         
         #19 vendor/symfony/console/Command/Command.php(308):                                                           
         Rector\Core\Console\Command\WorkerCommand->execute(Object(Symfony\Component\Console\Input\ArgvInput),          
         Object(Symfony\Component\Console\Output\ConsoleOutput))                                                        
         #20 vendor/symfony/console/Application.php(998):                                                               
         Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput),              
         Object(Symfony\Component\Console\Output\ConsoleOutput))                                                        
         #21 vendor/symfony/console/Application.php(299):                                                               
         Symfony\Component\Console\Application->doRunCommand(Object(Rector\Core\Console\Command\WorkerCommand),         
         Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))     
         #22 src/Console/ConsoleApplication.php(58):                                                                    
         Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput),                
         Object(Symfony\Component\Console\Output\ConsoleOutput))                                                        
         #23 vendor/symfony/console/Application.php(171):                                                               
         Rector\Core\Console\ConsoleApplication->doRun(Object(Symfony\Component\Console\Input\ArgvInput),               
         Object(Symfony\Component\Console\Output\ConsoleOutput))                                                        
         #24 bin/rector.php(159): Symfony\Component\Console\Application->run()                                          
         #25 bin/rector(4): require_once('/Users/samsonas...')                                                          
         #26 {main}". On line: 111                                                                                      
                                                              

[samsonasik]

All checks have passed 🎉 @TomasVotruba it is ready for review.

[TomasVotruba]

Thank you 👍