Missing parent constructor calls.

src/Composer/Repository/ArtifactRepository.php

@@ -30,6 +30,7 @@ class ArtifactRepository extends ArrayRepository implements ConfigurableReposito
 
     public function __construct(array $repoConfig, IOInterface $io)
     {
+        parent::__construct();
         if (!extension_loaded('zip')) {
             throw new \RuntimeException('The artifact repository requires PHP\'s zip extension');
         }

src/Composer/Repository/ComposerRepository.php

@@ -62,6 +62,7 @@ class ComposerRepository extends ArrayRepository implements ConfigurableReposito
 
     public function __construct(array $repoConfig, IOInterface $io, Config $config, EventDispatcher $eventDispatcher = null, RemoteFilesystem $rfs = null)
     {
+        parent::__construct();
         if (!preg_match('{^[\w.]+\??://}', $repoConfig['url'])) {
             // assume http as the default protocol
             $repoConfig['url'] = 'http://'.$repoConfig['url'];

src/Composer/Repository/FilesystemRepository.php

@@ -33,6 +33,7 @@ class FilesystemRepository extends WritableArrayRepository
      */
     public function __construct(JsonFile $repositoryFile)
     {
+        parent::__construct();
         $this->file = $repositoryFile;
     }
 

src/Composer/Repository/PackageRepository.php

@@ -31,6 +31,7 @@ class PackageRepository extends ArrayRepository
      */
     public function __construct(array $config)
     {
+        parent::__construct();
         $this->config = $config['package'];
 
         // make sure we have an array of package definitions

src/Composer/Repository/PearRepository.php

@@ -49,6 +49,7 @@ class PearRepository extends ArrayRepository implements ConfigurableRepositoryIn
 
     public function __construct(array $repoConfig, IOInterface $io, Config $config, EventDispatcher $dispatcher = null, RemoteFilesystem $rfs = null)
     {
+        parent::__construct();
         if (!preg_match('{^https?://}', $repoConfig['url'])) {
             $repoConfig['url'] = 'http://'.$repoConfig['url'];
         }

src/Composer/Repository/VcsRepository.php

@@ -41,6 +41,7 @@ class VcsRepository extends ArrayRepository implements ConfigurableRepositoryInt
 
     public function __construct(array $repoConfig, IOInterface $io, Config $config, EventDispatcher $dispatcher = null, array $drivers = null)
     {
+        parent::__construct();
         $this->drivers = $drivers ?: array(
             'github'        => 'Composer\Repository\Vcs\GitHubDriver',
             'gitlab'        => 'Composer\Repository\Vcs\GitLabDriver',