fixed @expectedException class names

ClassMapGenerator.php

@@ -39,7 +39,7 @@ class ClassMapGenerator
     /**
      * Iterate over all files in the given directory searching for classes
      *
-     * @param Iterator|string $dir The directory to search in or an iterator
+     * @param \Iterator|string $dir The directory to search in or an iterator
      *
      * @return array A class map array
      */

README.md

@@ -65,5 +65,5 @@ Resources
 You can run the unit tests with the following command:
 
     $ cd path/to/Symfony/Component/ClassLoader/
-    $ composer.phar install --dev
+    $ composer.phar install
     $ phpunit

Tests/ClassCollectionLoaderTest.php

@@ -189,7 +189,7 @@ class ClassCollectionLoaderTest extends \PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException InvalidArgumentException
+     * @expectedException \InvalidArgumentException
      */
     public function testUnableToLoadClassException()
     {