fix "Unable to find type name" when creating closure

[AegirLeet]

$ ./vendor/bin/psysh -vvv
Psy Shell v0.12.3 (PHP 8.3.7 — cli) by Justin Hileman
> $x = function(): DateTime { return new DateTime(); };

   InvalidArgumentException  Unable to find type name.

--
 () at vendor/psy/psysh/src/CodeCleaner/ReturnTypePass.php:111
 Psy\CodeCleaner\ReturnTypePass->typeName() at vendor/psy/psysh/src/CodeCleaner/ReturnTypePass.php:58
 Psy\CodeCleaner\ReturnTypePass->enterNode() at vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:200
 PhpParser\NodeTraverser->traverseArray() at vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:114
 PhpParser\NodeTraverser->traverseNode() at vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:146
 PhpParser\NodeTraverser->traverseNode() at vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:146
 PhpParser\NodeTraverser->traverseNode() at vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:223
 PhpParser\NodeTraverser->traverseArray() at vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php:91
 PhpParser\NodeTraverser->traverse() at vendor/psy/psysh/src/CodeCleaner.php:268
 Psy\CodeCleaner->clean() at vendor/psy/psysh/src/Shell.php:848
 Psy\Shell->addCode() at vendor/psy/psysh/src/Shell.php:535
 Psy\Shell->getInput() at vendor/psy/psysh/src/ExecutionLoopClosure.php:37
 Psy\{closure}() at vendor/psy/psysh/src/ExecutionClosure.php:89
 Psy\ExecutionClosure->execute() at vendor/psy/psysh/src/Shell.php:383
 Psy\Shell->doInteractiveRun() at vendor/psy/psysh/src/Shell.php:354
 Psy\Shell->doRun() at vendor/symfony/console/Application.php:175
 Symfony\Component\Console\Application->run() at vendor/psy/psysh/src/Shell.php:329
 Psy\Shell->run() at vendor/psy/psysh/src/functions.php:466
 Psy\{closure}() at vendor/psy/psysh/bin/psysh:148
 include() at vendor/bin/psysh:119

[bobthecow]

Thank you!

[AegirLeet]

I just realized this only works on nikic/php-parser 5.x, but not 4.x. The 4.x branch doesn't have the Name::$name property. I'll open another PR.