Fix symfony error handler warnings, fixes #10397 (#10404)

src/Composer/Console/Application.php

@@ -20,6 +20,7 @@ use Symfony\Component\Console\Application as BaseApplication;
 use Symfony\Component\Console\Exception\CommandNotFoundException;
 use Symfony\Component\Console\Helper\HelperSet;
 use Symfony\Component\Console\Helper\QuestionHelper;
+use Symfony\Component\Console\Input\InputDefinition;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
@@ -119,7 +120,7 @@ class Application extends BaseApplication
     }
 
     /**
-     * @inheritDoc
+     * @return int
      */
     public function run(InputInterface $input = null, OutputInterface $output = null)
     {
@@ -131,7 +132,7 @@ class Application extends BaseApplication
     }
 
     /**
-     * @inheritDoc
+     * @return int
      */
     public function doRun(InputInterface $input, OutputInterface $output)
     {
@@ -492,6 +493,7 @@ class Application extends BaseApplication
 
     /**
      * Initializes all the composer commands.
+     * @return \Symfony\Component\Console\Command\Command[]
      */
     protected function getDefaultCommands()
     {
@@ -534,7 +536,7 @@ class Application extends BaseApplication
     }
 
     /**
-     * @inheritDoc
+     * @return string
      */
     public function getLongVersion()
     {
@@ -552,7 +554,7 @@ class Application extends BaseApplication
     }
 
     /**
-     * @inheritDoc
+     * @return InputDefinition
      */
     protected function getDefaultInputDefinition()
     {

src/Composer/IO/BaseIO.php

@@ -160,7 +160,7 @@ abstract class BaseIO implements IOInterface
     }
 
     /**
-     * @inheritDoc
+     * @return void
      */
     public function emergency($message, array $context = array())
     {
@@ -168,7 +168,7 @@ abstract class BaseIO implements IOInterface
     }
 
     /**
-     * @inheritDoc
+     * @return void
      */
     public function alert($message, array $context = array())
     {
@@ -176,7 +176,7 @@ abstract class BaseIO implements IOInterface
     }
 
     /**
-     * @inheritDoc
+     * @return void
      */
     public function critical($message, array $context = array())
     {
@@ -184,7 +184,7 @@ abstract class BaseIO implements IOInterface
     }
 
     /**
-     * @inheritDoc
+     * @return void
      */
     public function error($message, array $context = array())
     {
@@ -192,7 +192,7 @@ abstract class BaseIO implements IOInterface
     }
 
     /**
-     * @inheritDoc
+     * @return void
      */
     public function warning($message, array $context = array())
     {
@@ -200,7 +200,7 @@ abstract class BaseIO implements IOInterface
     }
 
     /**
-     * @inheritDoc
+     * @return void
      */
     public function notice($message, array $context = array())
     {
@@ -208,7 +208,7 @@ abstract class BaseIO implements IOInterface
     }
 
     /**
-     * @inheritDoc
+     * @return void
      */
     public function info($message, array $context = array())
     {
@@ -216,7 +216,7 @@ abstract class BaseIO implements IOInterface
     }
 
     /**
-     * @inheritDoc
+     * @return void
      */
     public function debug($message, array $context = array())
     {
@@ -224,7 +224,7 @@ abstract class BaseIO implements IOInterface
     }
 
     /**
-     * @inheritDoc
+     * @return void
      */
     public function log($level, $message, array $context = array())
     {