Merge "Extracted some code from PrefixSearch for re-usability by other search engines."

diff --combined autoload.php
index 3e5c1b5,1e21a00..84bfe0b
--- 1/autoload.php
--- 2/autoload.php
+++ b/autoload.php
@@@ -192,14 -192,12 +192,14 @@@ $wgAutoloadLocalClasses = array
        'Category' => __DIR__ . '/includes/Category.php',
        'CategoryFinder' => __DIR__ . '/includes/CategoryFinder.php',
        'CategoryMembershipChange' => __DIR__ . '/includes/changes/CategoryMembershipChange.php',
 +      'CategoryMembershipChangeJob' => __DIR__ . '/includes/jobqueue/jobs/CategoryMembershipChangeJob.php',
        'CategoryPage' => __DIR__ . '/includes/page/CategoryPage.php',
        'CategoryPager' => __DIR__ . '/includes/specials/SpecialCategories.php',
        'CategoryViewer' => __DIR__ . '/includes/CategoryViewer.php',
        'CdbException' => __DIR__ . '/includes/compat/CdbCompat.php',
        'CdbReader' => __DIR__ . '/includes/compat/CdbCompat.php',
        'CdbWriter' => __DIR__ . '/includes/compat/CdbCompat.php',
 +      'CentralIdLookup' => __DIR__ . '/includes/user/CentralIdLookup.php',
        'CgzCopyTransaction' => __DIR__ . '/maintenance/storage/recompressTracked.php',
        'ChangePassword' => __DIR__ . '/maintenance/changePassword.php',
        'ChangeTags' => __DIR__ . '/includes/changetags/ChangeTags.php',
@@@ -695,7 -693,6 +695,7 @@@
        'LocalFileDeleteBatch' => __DIR__ . '/includes/filerepo/file/LocalFile.php',
        'LocalFileMoveBatch' => __DIR__ . '/includes/filerepo/file/LocalFile.php',
        'LocalFileRestoreBatch' => __DIR__ . '/includes/filerepo/file/LocalFile.php',
 +      'LocalIdLookup' => __DIR__ . '/includes/user/LocalIdLookup.php',
        'LocalRepo' => __DIR__ . '/includes/filerepo/LocalRepo.php',
        'LocalSettingsGenerator' => __DIR__ . '/includes/installer/LocalSettingsGenerator.php',
        'LocalisationCache' => __DIR__ . '/includes/cache/LocalisationCache.php',
@@@ -1089,6 -1086,7 +1089,7 @@@
        'SearchDump' => __DIR__ . '/maintenance/dumpIterator.php',
        'SearchEngine' => __DIR__ . '/includes/search/SearchEngine.php',
        'SearchEngineDummy' => __DIR__ . '/includes/search/SearchEngine.php',
+       'SearchExactMatchRescorer' => __DIR__ . '/includes/search/SearchExactMatchRescorer.php',
        'SearchHighlighter' => __DIR__ . '/includes/search/SearchHighlighter.php',
        'SearchMssql' => __DIR__ . '/includes/search/SearchMssql.php',
        'SearchMySQL' => __DIR__ . '/includes/search/SearchMySQL.php',
@@@ -1323,9 -1321,9 +1324,9 @@@
        'UploadStashZeroLengthFileException' => __DIR__ . '/includes/upload/UploadStash.php',
        'UppercaseCollation' => __DIR__ . '/includes/Collation.php',
        'UsageException' => __DIR__ . '/includes/api/ApiMain.php',
 -      'User' => __DIR__ . '/includes/User.php',
 -      'UserArray' => __DIR__ . '/includes/UserArray.php',
 -      'UserArrayFromResult' => __DIR__ . '/includes/UserArrayFromResult.php',
 +      'User' => __DIR__ . '/includes/user/User.php',
 +      'UserArray' => __DIR__ . '/includes/user/UserArray.php',
 +      'UserArrayFromResult' => __DIR__ . '/includes/user/UserArrayFromResult.php',
        'UserBlockedError' => __DIR__ . '/includes/exception/UserBlockedError.php',
        'UserCache' => __DIR__ . '/includes/cache/UserCache.php',
        'UserDupes' => __DIR__ . '/maintenance/userDupes.inc',
@@@ -1333,7 -1331,7 +1334,7 @@@
        'UserNotLoggedIn' => __DIR__ . '/includes/exception/UserNotLoggedIn.php',
        'UserOptions' => __DIR__ . '/maintenance/userOptions.inc',
        'UserPasswordPolicy' => __DIR__ . '/includes/password/UserPasswordPolicy.php',
 -      'UserRightsProxy' => __DIR__ . '/includes/UserRightsProxy.php',
 +      'UserRightsProxy' => __DIR__ . '/includes/user/UserRightsProxy.php',
        'UsercreateTemplate' => __DIR__ . '/includes/templates/Usercreate.php',
        'UserloginTemplate' => __DIR__ . '/includes/templates/Userlogin.php',
        'UserrightsPage' => __DIR__ . '/includes/specials/SpecialUserrights.php',