Merge "Refactor NamespaceInputWidget"

diff --combined autoload.php
index dc290fd,8a6a340..3b123c4
--- 1/autoload.php
--- 2/autoload.php
+++ b/autoload.php
@@@ -200,6 -200,7 +200,6 @@@ $wgAutoloadLocalClasses = array
        'CapsCleanup' => __DIR__ . '/maintenance/cleanupCaps.php',
        'Category' => __DIR__ . '/includes/Category.php',
        'CategoryFinder' => __DIR__ . '/includes/CategoryFinder.php',
 -      'CategoryMembershipChange' => __DIR__ . '/includes/changes/CategoryMembershipChange.php',
        'CategoryPage' => __DIR__ . '/includes/page/CategoryPage.php',
        'CategoryPager' => __DIR__ . '/includes/specials/SpecialCategories.php',
        'CategoryViewer' => __DIR__ . '/includes/CategoryViewer.php',
@@@ -761,6 -762,7 +761,7 @@@
        'MediaWiki\\Logger\\Monolog\\WikiProcessor' => __DIR__ . '/includes/debug/logger/monolog/WikiProcessor.php',
        'MediaWiki\\Logger\\NullSpi' => __DIR__ . '/includes/debug/logger/NullSpi.php',
        'MediaWiki\\Logger\\Spi' => __DIR__ . '/includes/debug/logger/Spi.php',
+       'MediaWiki\\Widget\\ComplexNamespaceInputWidget' => __DIR__ . '/includes/widget/ComplexNamespaceInputWidget.php',
        'MediaWiki\\Widget\\NamespaceInputWidget' => __DIR__ . '/includes/widget/NamespaceInputWidget.php',
        'MediaWiki\\Widget\\TitleInputWidget' => __DIR__ . '/includes/widget/TitleInputWidget.php',
        'MediaWiki\\Widget\\UserInputWidget' => __DIR__ . '/includes/widget/UserInputWidget.php',