[DependencyInjection] Fixed typo

src/Symfony/Component/DependencyInjection/Compiler/ReplaceAliasByActualDefinitionPass.php

@@ -53,7 +53,7 @@ class ReplaceAliasByActualDefinitionPass implements CompilerPassInterface
     }
 
     /**
-     * Updates references to remove aliasess.
+     * Updates references to remove aliases.
      *
      * @param ContainerBuilder $container The container
      * @param string $currentId The alias identifier being replaced

src/Symfony/Component/DependencyInjection/Dumper/GraphvizDumper.php

@@ -224,7 +224,8 @@ class GraphvizDumper extends Dumper
      * Adds options
      *
      * @param array $options An array of options
-     * @return string A space seperated list of options
+     *
+     * @return string A space separated list of options
      */
     protected function addOptions($options)
     {

src/Symfony/Component/DependencyInjection/InterfaceInjector.php

@@ -25,7 +25,7 @@ class InterfaceInjector
     protected $processedDefinitions = array();
 
     /**
-     * Contructs interface injector by specifying the target class name
+     * Constructs interface injector by specifying the target class name
      *
      * @param string $class
      */