Minor: PhpParser autload inconsistency.

[remicollet]

 // nikic's PHPParser
 if (!class_exists('PhpParser\Autoloader', true)) {
      require __DIR__ . '/../vendor/nikic/php-parser/lib/bootstrap.php';
 }

The test (class_exists) is not consistent with action in php-parser/lib/bootstrap.php (declare the autoloader class AND register an autoloader)

This can raise issue if "autoload" can find the class, as the "register" will not be run.
Simple Proposal:

  if (!class_exists('PhpParser\Autoloader', false)) {

Or simply drop this test and use "require_once"