diff --git a/externals/porter-stemmer/LICENSE b/externals/porter-stemmer/LICENSE
new file mode 100644
index 0000000..d4afc6c
--- /dev/null
+++ b/externals/porter-stemmer/LICENSE
@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2005-2016 Richard Heyes (http://www.phpguru.org/)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/externals/porter-stemmer/README.md b/externals/porter-stemmer/README.md
new file mode 100644
index 0000000..06bc417
--- /dev/null
+++ b/externals/porter-stemmer/README.md
@@ -0,0 +1,42 @@
+# Porter Stemmer by Richard Heyes
+
+# Installation (with composer)
+
+```json
+{
+	"require": {
+		"camspiers/porter-stemmer": "1.0.0"
+	}
+}
+```
+
+	$ composer install
+
+# Usage
+
+```php
+$stem = Porter::Stem($word);
+```
+
+# License
+
+The MIT License (MIT)
+
+Copyright (c) 2005-2016 Richard Heyes (http://www.phpguru.org/)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/externals/porter-stemmer/src/Porter.php b/externals/porter-stemmer/src/Porter.php
new file mode 100644
index 0000000..0720c53
--- /dev/null
+++ b/externals/porter-stemmer/src/Porter.php
@@ -0,0 +1,426 @@
+<?php
+
+# vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4:
+
+/**
+ * Copyright (c) 2005-2016 Richard Heyes (http://www.phpguru.org/)
+ *
+ * Portions Copyright 2003-2007 Jon Abernathy <jon@chuggnutt.com>
+ *
+ * Originally available under the GPL 2 or greater. Relicensed with permission
+ * of original authors under the MIT License in 2016.
+ *
+ * All rights reserved.
+ *
+ * @package   PorterStemmer
+ * @author    Richard Heyes
+ * @author    Jon Abernathy <jon@chuggnutt.com>
+ * @copyright 2005-2016 Richard Heyes (http://www.phpguru.org/)
+ * @license   http://www.opensource.org/licenses/mit-license.html MIT License
+ */
+
+/**
+ * PHP 5 Implementation of the Porter Stemmer algorithm. Certain elements
+ * were borrowed from the (broken) implementation by Jon Abernathy.
+ *
+ * See http://tartarus.org/~martin/PorterStemmer/ for a description of the
+ * algorithm.
+ *
+ * Usage:
+ *
+ *  $stem = PorterStemmer::Stem($word);
+ *
+ * How easy is that?
+ *
+ * @package   PorterStemmer
+ * @author    Richard Heyes
+ * @author    Jon Abernathy <jon@chuggnutt.com>
+ * @copyright 2005-2016 Richard Heyes (http://www.phpguru.org/)
+ * @license   http://www.opensource.org/licenses/mit-license.html MIT License
+ */
+class Porter
+{
+    /**
+     * Regex for matching a consonant
+     *
+     * @var string
+     */
+    private static $regex_consonant = '(?:[bcdfghjklmnpqrstvwxz]|(?<=[aeiou])y|^y)';
+
+    /**
+     * Regex for matching a vowel
+     *
+     * @var string
+     */
+    private static $regex_vowel = '(?:[aeiou]|(?<![aeiou])y)';
+
+    /**
+     * Stems a word. Simple huh?
+     *
+     * @param string $word Word to stem
+     *
+     * @return string Stemmed word
+     */
+    public static function Stem($word)
+    {
+        if (strlen($word) <= 2) {
+            return $word;
+        }
+
+        $word = self::step1ab($word);
+        $word = self::step1c($word);
+        $word = self::step2($word);
+        $word = self::step3($word);
+        $word = self::step4($word);
+        $word = self::step5($word);
+
+        return $word;
+    }
+
+    /**
+     * Step 1
+     */
+    private static function step1ab($word)
+    {
+        // Part a
+        if (substr($word, -1) == 's') {
+
+               self::replace($word, 'sses', 'ss')
+            OR self::replace($word, 'ies', 'i')
+            OR self::replace($word, 'ss', 'ss')
+            OR self::replace($word, 's', '');
+        }
+
+        // Part b
+        if (substr($word, -2, 1) != 'e' OR !self::replace($word, 'eed', 'ee', 0)) { // First rule
+            $v = self::$regex_vowel;
+
+            // ing and ed
+            if (   preg_match("#$v+#", substr($word, 0, -3)) && self::replace($word, 'ing', '')
+                OR preg_match("#$v+#", substr($word, 0, -2)) && self::replace($word, 'ed', '')) { // Note use of && and OR, for precedence reasons
+
+                // If one of above two test successful
+                if (    !self::replace($word, 'at', 'ate')
+                    AND !self::replace($word, 'bl', 'ble')
+                    AND !self::replace($word, 'iz', 'ize')) {
+
+                    // Double consonant ending
+                    if (    self::doubleConsonant($word)
+                        AND substr($word, -2) != 'll'
+                        AND substr($word, -2) != 'ss'
+                        AND substr($word, -2) != 'zz') {
+
+                        $word = substr($word, 0, -1);
+
+                    } elseif (self::m($word) == 1 AND self::cvc($word)) {
+                        $word .= 'e';
+                    }
+                }
+            }
+        }
+
+        return $word;
+    }
+
+    /**
+     * Step 1c
+     *
+     * @param string $word Word to stem
+     */
+    private static function step1c($word)
+    {
+        $v = self::$regex_vowel;
+
+        if (substr($word, -1) == 'y' && preg_match("#$v+#", substr($word, 0, -1))) {
+            self::replace($word, 'y', 'i');
+        }
+
+        return $word;
+    }
+
+    /**
+     * Step 2
+     *
+     * @param string $word Word to stem
+     */
+    private static function step2($word)
+    {
+        switch (substr($word, -2, 1)) {
+            case 'a':
+                   self::replace($word, 'ational', 'ate', 0)
+                OR self::replace($word, 'tional', 'tion', 0);
+                break;
+
+            case 'c':
+                   self::replace($word, 'enci', 'ence', 0)
+                OR self::replace($word, 'anci', 'ance', 0);
+                break;
+
+            case 'e':
+                self::replace($word, 'izer', 'ize', 0);
+                break;
+
+            case 'g':
+                self::replace($word, 'logi', 'log', 0);
+                break;
+
+            case 'l':
+                   self::replace($word, 'entli', 'ent', 0)
+                OR self::replace($word, 'ousli', 'ous', 0)
+                OR self::replace($word, 'alli', 'al', 0)
+                OR self::replace($word, 'bli', 'ble', 0)
+                OR self::replace($word, 'eli', 'e', 0);
+                break;
+
+            case 'o':
+                   self::replace($word, 'ization', 'ize', 0)
+                OR self::replace($word, 'ation', 'ate', 0)
+                OR self::replace($word, 'ator', 'ate', 0);
+                break;
+
+            case 's':
+                   self::replace($word, 'iveness', 'ive', 0)
+                OR self::replace($word, 'fulness', 'ful', 0)
+                OR self::replace($word, 'ousness', 'ous', 0)
+                OR self::replace($word, 'alism', 'al', 0);
+                break;
+
+            case 't':
+                   self::replace($word, 'biliti', 'ble', 0)
+                OR self::replace($word, 'aliti', 'al', 0)
+                OR self::replace($word, 'iviti', 'ive', 0);
+                break;
+        }
+
+        return $word;
+    }
+
+    /**
+     * Step 3
+     *
+     * @param string $word String to stem
+     */
+    private static function step3($word)
+    {
+        switch (substr($word, -2, 1)) {
+            case 'a':
+                self::replace($word, 'ical', 'ic', 0);
+                break;
+
+            case 's':
+                self::replace($word, 'ness', '', 0);
+                break;
+
+            case 't':
+                   self::replace($word, 'icate', 'ic', 0)
+                OR self::replace($word, 'iciti', 'ic', 0);
+                break;
+
+            case 'u':
+                self::replace($word, 'ful', '', 0);
+                break;
+
+            case 'v':
+                self::replace($word, 'ative', '', 0);
+                break;
+
+            case 'z':
+                self::replace($word, 'alize', 'al', 0);
+                break;
+        }
+
+        return $word;
+    }
+
+    /**
+     * Step 4
+     *
+     * @param string $word Word to stem
+     */
+    private static function step4($word)
+    {
+        switch (substr($word, -2, 1)) {
+            case 'a':
+                self::replace($word, 'al', '', 1);
+                break;
+
+            case 'c':
+                   self::replace($word, 'ance', '', 1)
+                OR self::replace($word, 'ence', '', 1);
+                break;
+
+            case 'e':
+                self::replace($word, 'er', '', 1);
+                break;
+
+            case 'i':
+                self::replace($word, 'ic', '', 1);
+                break;
+
+            case 'l':
+                   self::replace($word, 'able', '', 1)
+                OR self::replace($word, 'ible', '', 1);
+                break;
+
+            case 'n':
+                   self::replace($word, 'ant', '', 1)
+                OR self::replace($word, 'ement', '', 1)
+                OR self::replace($word, 'ment', '', 1)
+                OR self::replace($word, 'ent', '', 1);
+                break;
+
+            case 'o':
+                if (substr($word, -4) == 'tion' OR substr($word, -4) == 'sion') {
+                   self::replace($word, 'ion', '', 1);
+                } else {
+                    self::replace($word, 'ou', '', 1);
+                }
+                break;
+
+            case 's':
+                self::replace($word, 'ism', '', 1);
+                break;
+
+            case 't':
+                   self::replace($word, 'ate', '', 1)
+                OR self::replace($word, 'iti', '', 1);
+                break;
+
+            case 'u':
+                self::replace($word, 'ous', '', 1);
+                break;
+
+            case 'v':
+                self::replace($word, 'ive', '', 1);
+                break;
+
+            case 'z':
+                self::replace($word, 'ize', '', 1);
+                break;
+        }
+
+        return $word;
+    }
+
+    /**
+     * Step 5
+     *
+     * @param string $word Word to stem
+     */
+    private static function step5($word)
+    {
+        // Part a
+        if (substr($word, -1) == 'e') {
+            if (self::m(substr($word, 0, -1)) > 1) {
+                self::replace($word, 'e', '');
+
+            } elseif (self::m(substr($word, 0, -1)) == 1) {
+
+                if (!self::cvc(substr($word, 0, -1))) {
+                    self::replace($word, 'e', '');
+                }
+            }
+        }
+
+        // Part b
+        if (self::m($word) > 1 AND self::doubleConsonant($word) AND substr($word, -1) == 'l') {
+            $word = substr($word, 0, -1);
+        }
+
+        return $word;
+    }
+
+    /**
+     * Replaces the first string with the second, at the end of the string
+     *
+     * If third arg is given, then the preceding string must match that m
+     * count at least.
+     *
+     * @param  string $str   String to check
+     * @param  string $check Ending to check for
+     * @param  string $repl  Replacement string
+     * @param  int    $m     Optional minimum number of m() to meet
+     *
+     * @return bool Whether the $check string was at the end of the $str
+     *              string. True does not necessarily mean that it was
+     *              replaced.
+     */
+    private static function replace(&$str, $check, $repl, $m = null)
+    {
+        $len = 0 - strlen($check);
+
+        if (substr($str, $len) == $check) {
+            $substr = substr($str, 0, $len);
+            if (is_null($m) OR self::m($substr) > $m) {
+                $str = $substr . $repl;
+            }
+
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * What, you mean it's not obvious from the name?
+     *
+     * m() measures the number of consonant sequences in $str. if c is
+     * a consonant sequence and v a vowel sequence, and <..> indicates arbitrary
+     * presence,
+     *
+     * <c><v>       gives 0
+     * <c>vc<v>     gives 1
+     * <c>vcvc<v>   gives 2
+     * <c>vcvcvc<v> gives 3
+     *
+     * @param  string $str The string to return the m count for
+     *
+     * @return int The m count
+     */
+    private static function m($str)
+    {
+        $c = self::$regex_consonant;
+        $v = self::$regex_vowel;
+
+        $str = preg_replace("#^$c+#", '', $str);
+        $str = preg_replace("#$v+$#", '', $str);
+
+        preg_match_all("#($v+$c+)#", $str, $matches);
+
+        return count($matches[1]);
+    }
+
+    /**
+     * Returns true/false as to whether the given string contains two
+     * of the same consonant next to each other at the end of the string.
+     *
+     * @param  string $str String to check
+     *
+     * @return bool Result
+     */
+    private static function doubleConsonant($str)
+    {
+        $c = self::$regex_consonant;
+
+        return preg_match("#$c{2}$#", $str, $matches) AND $matches[0]{0} == $matches[0]{1};
+    }
+
+    /**
+     * Checks for ending CVC sequence where second C is not W, X or Y
+     *
+     * @param  string $str String to check
+     *
+     * @return bool Result
+     */
+    private static function cvc($str)
+    {
+        $c = self::$regex_consonant;
+        $v = self::$regex_vowel;
+
+        return     preg_match("#($c$v$c)$#", $str, $matches)
+               AND strlen($matches[1]) == 3
+               AND $matches[1]{2} != 'w'
+               AND $matches[1]{2} != 'x'
+               AND $matches[1]{2} != 'y';
+    }
+}
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index d32ab3f..4348778 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -1,1062 +1,1066 @@
 <?php
 
 /**
  * This file is automatically generated. Use 'arc liberate' to rebuild it.
  *
  * @generated
  * @phutil-library-version 2
  */
 phutil_register_library_map(array(
   '__library_version__' => 2,
   'class' => array(
     'AASTNode' => 'parser/aast/api/AASTNode.php',
     'AASTNodeList' => 'parser/aast/api/AASTNodeList.php',
     'AASTToken' => 'parser/aast/api/AASTToken.php',
     'AASTTree' => 'parser/aast/api/AASTTree.php',
     'AbstractDirectedGraph' => 'utils/AbstractDirectedGraph.php',
     'AbstractDirectedGraphTestCase' => 'utils/__tests__/AbstractDirectedGraphTestCase.php',
     'AphrontAccessDeniedQueryException' => 'aphront/storage/exception/AphrontAccessDeniedQueryException.php',
     'AphrontBaseMySQLDatabaseConnection' => 'aphront/storage/connection/mysql/AphrontBaseMySQLDatabaseConnection.php',
     'AphrontCharacterSetQueryException' => 'aphront/storage/exception/AphrontCharacterSetQueryException.php',
     'AphrontConnectionLostQueryException' => 'aphront/storage/exception/AphrontConnectionLostQueryException.php',
     'AphrontConnectionQueryException' => 'aphront/storage/exception/AphrontConnectionQueryException.php',
     'AphrontCountQueryException' => 'aphront/storage/exception/AphrontCountQueryException.php',
     'AphrontDatabaseConnection' => 'aphront/storage/connection/AphrontDatabaseConnection.php',
     'AphrontDatabaseTransactionState' => 'aphront/storage/connection/AphrontDatabaseTransactionState.php',
     'AphrontDeadlockQueryException' => 'aphront/storage/exception/AphrontDeadlockQueryException.php',
     'AphrontDuplicateKeyQueryException' => 'aphront/storage/exception/AphrontDuplicateKeyQueryException.php',
     'AphrontInvalidCredentialsQueryException' => 'aphront/storage/exception/AphrontInvalidCredentialsQueryException.php',
     'AphrontIsolatedDatabaseConnection' => 'aphront/storage/connection/AphrontIsolatedDatabaseConnection.php',
     'AphrontLockTimeoutQueryException' => 'aphront/storage/exception/AphrontLockTimeoutQueryException.php',
     'AphrontMySQLDatabaseConnection' => 'aphront/storage/connection/mysql/AphrontMySQLDatabaseConnection.php',
     'AphrontMySQLiDatabaseConnection' => 'aphront/storage/connection/mysql/AphrontMySQLiDatabaseConnection.php',
     'AphrontNotSupportedQueryException' => 'aphront/storage/exception/AphrontNotSupportedQueryException.php',
     'AphrontObjectMissingQueryException' => 'aphront/storage/exception/AphrontObjectMissingQueryException.php',
     'AphrontParameterQueryException' => 'aphront/storage/exception/AphrontParameterQueryException.php',
     'AphrontQueryException' => 'aphront/storage/exception/AphrontQueryException.php',
     'AphrontQueryTimeoutQueryException' => 'aphront/storage/exception/AphrontQueryTimeoutQueryException.php',
     'AphrontRecoverableQueryException' => 'aphront/storage/exception/AphrontRecoverableQueryException.php',
     'AphrontRequestStream' => 'aphront/requeststream/AphrontRequestStream.php',
     'AphrontSchemaQueryException' => 'aphront/storage/exception/AphrontSchemaQueryException.php',
     'AphrontScopedUnguardedWriteCapability' => 'aphront/writeguard/AphrontScopedUnguardedWriteCapability.php',
     'AphrontWriteGuard' => 'aphront/writeguard/AphrontWriteGuard.php',
     'BaseHTTPFuture' => 'future/http/BaseHTTPFuture.php',
     'CaseInsensitiveArray' => 'utils/CaseInsensitiveArray.php',
     'CaseInsensitiveArrayTestCase' => 'utils/__tests__/CaseInsensitiveArrayTestCase.php',
     'CommandException' => 'future/exec/CommandException.php',
     'ConduitClient' => 'conduit/ConduitClient.php',
     'ConduitClientException' => 'conduit/ConduitClientException.php',
     'ConduitClientTestCase' => 'conduit/__tests__/ConduitClientTestCase.php',
     'ConduitFuture' => 'conduit/ConduitFuture.php',
     'ExecFuture' => 'future/exec/ExecFuture.php',
     'ExecFutureTestCase' => 'future/exec/__tests__/ExecFutureTestCase.php',
     'ExecPassthruTestCase' => 'future/exec/__tests__/ExecPassthruTestCase.php',
     'FileFinder' => 'filesystem/FileFinder.php',
     'FileFinderTestCase' => 'filesystem/__tests__/FileFinderTestCase.php',
     'FileList' => 'filesystem/FileList.php',
     'Filesystem' => 'filesystem/Filesystem.php',
     'FilesystemException' => 'filesystem/FilesystemException.php',
     'FilesystemTestCase' => 'filesystem/__tests__/FilesystemTestCase.php',
     'Future' => 'future/Future.php',
     'FutureIterator' => 'future/FutureIterator.php',
     'FutureIteratorTestCase' => 'future/__tests__/FutureIteratorTestCase.php',
     'FutureProxy' => 'future/FutureProxy.php',
     'HTTPFuture' => 'future/http/HTTPFuture.php',
     'HTTPFutureCURLResponseStatus' => 'future/http/status/HTTPFutureCURLResponseStatus.php',
     'HTTPFutureCertificateResponseStatus' => 'future/http/status/HTTPFutureCertificateResponseStatus.php',
     'HTTPFutureHTTPResponseStatus' => 'future/http/status/HTTPFutureHTTPResponseStatus.php',
     'HTTPFutureParseResponseStatus' => 'future/http/status/HTTPFutureParseResponseStatus.php',
     'HTTPFutureResponseStatus' => 'future/http/status/HTTPFutureResponseStatus.php',
     'HTTPFutureTransportResponseStatus' => 'future/http/status/HTTPFutureTransportResponseStatus.php',
     'HTTPSFuture' => 'future/http/HTTPSFuture.php',
     'ImmediateFuture' => 'future/ImmediateFuture.php',
     'LibphutilUSEnglishTranslation' => 'internationalization/translation/LibphutilUSEnglishTranslation.php',
     'LinesOfALarge' => 'filesystem/linesofalarge/LinesOfALarge.php',
     'LinesOfALargeExecFuture' => 'filesystem/linesofalarge/LinesOfALargeExecFuture.php',
     'LinesOfALargeExecFutureTestCase' => 'filesystem/linesofalarge/__tests__/LinesOfALargeExecFutureTestCase.php',
     'LinesOfALargeFile' => 'filesystem/linesofalarge/LinesOfALargeFile.php',
     'LinesOfALargeFileTestCase' => 'filesystem/linesofalarge/__tests__/LinesOfALargeFileTestCase.php',
     'MFilterTestHelper' => 'utils/__tests__/MFilterTestHelper.php',
     'PHPASTParserTestCase' => 'parser/xhpast/__tests__/PHPASTParserTestCase.php',
     'PhageAgentBootloader' => 'phage/bootloader/PhageAgentBootloader.php',
     'PhageAgentTestCase' => 'phage/__tests__/PhageAgentTestCase.php',
     'PhagePHPAgent' => 'phage/agent/PhagePHPAgent.php',
     'PhagePHPAgentBootloader' => 'phage/bootloader/PhagePHPAgentBootloader.php',
     'Phobject' => 'object/Phobject.php',
     'PhobjectTestCase' => 'object/__tests__/PhobjectTestCase.php',
     'PhutilAPCKeyValueCache' => 'cache/PhutilAPCKeyValueCache.php',
     'PhutilAWSEC2Future' => 'future/aws/PhutilAWSEC2Future.php',
     'PhutilAWSException' => 'future/aws/PhutilAWSException.php',
     'PhutilAWSFuture' => 'future/aws/PhutilAWSFuture.php',
     'PhutilAWSManagementWorkflow' => 'future/aws/management/PhutilAWSManagementWorkflow.php',
     'PhutilAWSS3DeleteManagementWorkflow' => 'future/aws/management/PhutilAWSS3DeleteManagementWorkflow.php',
     'PhutilAWSS3Future' => 'future/aws/PhutilAWSS3Future.php',
     'PhutilAWSS3GetManagementWorkflow' => 'future/aws/management/PhutilAWSS3GetManagementWorkflow.php',
     'PhutilAWSS3ManagementWorkflow' => 'future/aws/management/PhutilAWSS3ManagementWorkflow.php',
     'PhutilAWSS3PutManagementWorkflow' => 'future/aws/management/PhutilAWSS3PutManagementWorkflow.php',
     'PhutilAWSv4Signature' => 'future/aws/PhutilAWSv4Signature.php',
     'PhutilAWSv4SignatureTestCase' => 'future/aws/__tests__/PhutilAWSv4SignatureTestCase.php',
     'PhutilAggregateException' => 'error/PhutilAggregateException.php',
     'PhutilAllCapsEnglishLocale' => 'internationalization/locales/PhutilAllCapsEnglishLocale.php',
     'PhutilAmazonAuthAdapter' => 'auth/PhutilAmazonAuthAdapter.php',
     'PhutilArgumentParser' => 'parser/argument/PhutilArgumentParser.php',
     'PhutilArgumentParserException' => 'parser/argument/exception/PhutilArgumentParserException.php',
     'PhutilArgumentParserTestCase' => 'parser/argument/__tests__/PhutilArgumentParserTestCase.php',
     'PhutilArgumentSpecification' => 'parser/argument/PhutilArgumentSpecification.php',
     'PhutilArgumentSpecificationException' => 'parser/argument/exception/PhutilArgumentSpecificationException.php',
     'PhutilArgumentSpecificationTestCase' => 'parser/argument/__tests__/PhutilArgumentSpecificationTestCase.php',
     'PhutilArgumentSpellingCorrector' => 'parser/argument/PhutilArgumentSpellingCorrector.php',
     'PhutilArgumentSpellingCorrectorTestCase' => 'parser/argument/__tests__/PhutilArgumentSpellingCorrectorTestCase.php',
     'PhutilArgumentUsageException' => 'parser/argument/exception/PhutilArgumentUsageException.php',
     'PhutilArgumentWorkflow' => 'parser/argument/workflow/PhutilArgumentWorkflow.php',
     'PhutilArray' => 'utils/PhutilArray.php',
     'PhutilArrayTestCase' => 'utils/__tests__/PhutilArrayTestCase.php',
     'PhutilArrayWithDefaultValue' => 'utils/PhutilArrayWithDefaultValue.php',
     'PhutilAsanaAuthAdapter' => 'auth/PhutilAsanaAuthAdapter.php',
     'PhutilAsanaFuture' => 'future/asana/PhutilAsanaFuture.php',
     'PhutilAuthAdapter' => 'auth/PhutilAuthAdapter.php',
     'PhutilAuthConfigurationException' => 'auth/exception/PhutilAuthConfigurationException.php',
     'PhutilAuthCredentialException' => 'auth/exception/PhutilAuthCredentialException.php',
     'PhutilAuthException' => 'auth/exception/PhutilAuthException.php',
     'PhutilAuthUserAbortedException' => 'auth/exception/PhutilAuthUserAbortedException.php',
     'PhutilBacktraceSignalHandler' => 'future/exec/PhutilBacktraceSignalHandler.php',
     'PhutilBallOfPHP' => 'phage/util/PhutilBallOfPHP.php',
     'PhutilBitbucketAuthAdapter' => 'auth/PhutilBitbucketAuthAdapter.php',
     'PhutilBootloader' => 'moduleutils/PhutilBootloader.php',
     'PhutilBootloaderException' => 'moduleutils/PhutilBootloaderException.php',
     'PhutilBritishEnglishLocale' => 'internationalization/locales/PhutilBritishEnglishLocale.php',
     'PhutilBufferedIterator' => 'utils/PhutilBufferedIterator.php',
     'PhutilBufferedIteratorTestCase' => 'utils/__tests__/PhutilBufferedIteratorTestCase.php',
     'PhutilBugtraqParser' => 'parser/PhutilBugtraqParser.php',
     'PhutilBugtraqParserTestCase' => 'parser/__tests__/PhutilBugtraqParserTestCase.php',
     'PhutilCIDRBlock' => 'ip/PhutilCIDRBlock.php',
     'PhutilCIDRList' => 'ip/PhutilCIDRList.php',
     'PhutilCLikeCodeSnippetContextFreeGrammar' => 'grammar/code/PhutilCLikeCodeSnippetContextFreeGrammar.php',
     'PhutilCalendarAbsoluteDateTime' => 'parser/calendar/data/PhutilCalendarAbsoluteDateTime.php',
     'PhutilCalendarContainerNode' => 'parser/calendar/data/PhutilCalendarContainerNode.php',
     'PhutilCalendarDateTime' => 'parser/calendar/data/PhutilCalendarDateTime.php',
     'PhutilCalendarDocumentNode' => 'parser/calendar/data/PhutilCalendarDocumentNode.php',
     'PhutilCalendarDuration' => 'parser/calendar/data/PhutilCalendarDuration.php',
     'PhutilCalendarEventNode' => 'parser/calendar/data/PhutilCalendarEventNode.php',
     'PhutilCalendarNode' => 'parser/calendar/data/PhutilCalendarNode.php',
     'PhutilCalendarProxyDateTime' => 'parser/calendar/data/PhutilCalendarProxyDateTime.php',
     'PhutilCalendarRawNode' => 'parser/calendar/data/PhutilCalendarRawNode.php',
     'PhutilCalendarRecurrenceList' => 'parser/calendar/data/PhutilCalendarRecurrenceList.php',
     'PhutilCalendarRecurrenceRule' => 'parser/calendar/data/PhutilCalendarRecurrenceRule.php',
     'PhutilCalendarRecurrenceRuleTestCase' => 'parser/calendar/data/__tests__/PhutilCalendarRecurrenceRuleTestCase.php',
     'PhutilCalendarRecurrenceSet' => 'parser/calendar/data/PhutilCalendarRecurrenceSet.php',
     'PhutilCalendarRecurrenceSource' => 'parser/calendar/data/PhutilCalendarRecurrenceSource.php',
     'PhutilCalendarRecurrenceTestCase' => 'parser/calendar/data/__tests__/PhutilCalendarRecurrenceTestCase.php',
     'PhutilCalendarRelativeDateTime' => 'parser/calendar/data/PhutilCalendarRelativeDateTime.php',
     'PhutilCalendarRootNode' => 'parser/calendar/data/PhutilCalendarRootNode.php',
     'PhutilCalendarUserNode' => 'parser/calendar/data/PhutilCalendarUserNode.php',
     'PhutilCallbackFilterIterator' => 'utils/PhutilCallbackFilterIterator.php',
     'PhutilCallbackSignalHandler' => 'future/exec/PhutilCallbackSignalHandler.php',
     'PhutilChannel' => 'channel/PhutilChannel.php',
     'PhutilChannelChannel' => 'channel/PhutilChannelChannel.php',
     'PhutilChannelTestCase' => 'channel/__tests__/PhutilChannelTestCase.php',
     'PhutilChunkedIterator' => 'utils/PhutilChunkedIterator.php',
     'PhutilChunkedIteratorTestCase' => 'utils/__tests__/PhutilChunkedIteratorTestCase.php',
     'PhutilClassMapQuery' => 'symbols/PhutilClassMapQuery.php',
     'PhutilCodeSnippetContextFreeGrammar' => 'grammar/code/PhutilCodeSnippetContextFreeGrammar.php',
     'PhutilCommandString' => 'xsprintf/PhutilCommandString.php',
     'PhutilConsole' => 'console/PhutilConsole.php',
     'PhutilConsoleBlock' => 'console/view/PhutilConsoleBlock.php',
     'PhutilConsoleConcatenatedView' => 'console/view/PhutilConsoleConcatenatedView.php',
     'PhutilConsoleFormatter' => 'console/PhutilConsoleFormatter.php',
     'PhutilConsoleList' => 'console/view/PhutilConsoleList.php',
     'PhutilConsoleMessage' => 'console/PhutilConsoleMessage.php',
     'PhutilConsoleProgressBar' => 'console/PhutilConsoleProgressBar.php',
     'PhutilConsoleServer' => 'console/PhutilConsoleServer.php',
     'PhutilConsoleServerChannel' => 'console/PhutilConsoleServerChannel.php',
     'PhutilConsoleStdinNotInteractiveException' => 'console/PhutilConsoleStdinNotInteractiveException.php',
     'PhutilConsoleSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilConsoleSyntaxHighlighter.php',
     'PhutilConsoleTable' => 'console/view/PhutilConsoleTable.php',
     'PhutilConsoleView' => 'console/view/PhutilConsoleView.php',
     'PhutilConsoleWrapTestCase' => 'console/__tests__/PhutilConsoleWrapTestCase.php',
     'PhutilContextFreeGrammar' => 'grammar/PhutilContextFreeGrammar.php',
     'PhutilCowsay' => 'utils/PhutilCowsay.php',
     'PhutilCowsayTestCase' => 'utils/__tests__/PhutilCowsayTestCase.php',
     'PhutilCsprintfTestCase' => 'xsprintf/__tests__/PhutilCsprintfTestCase.php',
     'PhutilCzechLocale' => 'internationalization/locales/PhutilCzechLocale.php',
     'PhutilDaemon' => 'daemon/PhutilDaemon.php',
     'PhutilDaemonHandle' => 'daemon/PhutilDaemonHandle.php',
     'PhutilDaemonOverseer' => 'daemon/PhutilDaemonOverseer.php',
     'PhutilDaemonOverseerModule' => 'daemon/PhutilDaemonOverseerModule.php',
     'PhutilDefaultSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilDefaultSyntaxHighlighter.php',
     'PhutilDefaultSyntaxHighlighterEngine' => 'markup/syntax/engine/PhutilDefaultSyntaxHighlighterEngine.php',
     'PhutilDefaultSyntaxHighlighterEnginePygmentsFuture' => 'markup/syntax/highlighter/pygments/PhutilDefaultSyntaxHighlighterEnginePygmentsFuture.php',
     'PhutilDefaultSyntaxHighlighterEngineTestCase' => 'markup/syntax/engine/__tests__/PhutilDefaultSyntaxHighlighterEngineTestCase.php',
     'PhutilDeferredLog' => 'filesystem/PhutilDeferredLog.php',
     'PhutilDeferredLogTestCase' => 'filesystem/__tests__/PhutilDeferredLogTestCase.php',
     'PhutilDirectedScalarGraph' => 'utils/PhutilDirectedScalarGraph.php',
     'PhutilDirectoryFixture' => 'filesystem/PhutilDirectoryFixture.php',
     'PhutilDirectoryKeyValueCache' => 'cache/PhutilDirectoryKeyValueCache.php',
     'PhutilDisqusAuthAdapter' => 'auth/PhutilDisqusAuthAdapter.php',
     'PhutilDivinerSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilDivinerSyntaxHighlighter.php',
     'PhutilDocblockParser' => 'parser/PhutilDocblockParser.php',
     'PhutilDocblockParserTestCase' => 'parser/__tests__/PhutilDocblockParserTestCase.php',
     'PhutilEditDistanceMatrix' => 'utils/PhutilEditDistanceMatrix.php',
     'PhutilEditDistanceMatrixTestCase' => 'utils/__tests__/PhutilEditDistanceMatrixTestCase.php',
     'PhutilEditorConfig' => 'parser/PhutilEditorConfig.php',
     'PhutilEditorConfigTestCase' => 'parser/__tests__/PhutilEditorConfigTestCase.php',
     'PhutilEmailAddress' => 'parser/PhutilEmailAddress.php',
     'PhutilEmailAddressTestCase' => 'parser/__tests__/PhutilEmailAddressTestCase.php',
     'PhutilEmojiLocale' => 'internationalization/locales/PhutilEmojiLocale.php',
     'PhutilEmptyAuthAdapter' => 'auth/PhutilEmptyAuthAdapter.php',
     'PhutilEnglishCanadaLocale' => 'internationalization/locales/PhutilEnglishCanadaLocale.php',
     'PhutilErrorHandler' => 'error/PhutilErrorHandler.php',
     'PhutilErrorHandlerTestCase' => 'error/__tests__/PhutilErrorHandlerTestCase.php',
     'PhutilErrorTrap' => 'error/PhutilErrorTrap.php',
     'PhutilEvent' => 'events/PhutilEvent.php',
     'PhutilEventConstants' => 'events/constant/PhutilEventConstants.php',
     'PhutilEventEngine' => 'events/PhutilEventEngine.php',
     'PhutilEventListener' => 'events/PhutilEventListener.php',
     'PhutilEventType' => 'events/constant/PhutilEventType.php',
     'PhutilExampleBufferedIterator' => 'utils/PhutilExampleBufferedIterator.php',
     'PhutilExcessiveServiceCallsDaemon' => 'daemon/torture/PhutilExcessiveServiceCallsDaemon.php',
     'PhutilExecChannel' => 'channel/PhutilExecChannel.php',
     'PhutilExecPassthru' => 'future/exec/PhutilExecPassthru.php',
     'PhutilExecutableFuture' => 'future/exec/PhutilExecutableFuture.php',
     'PhutilExecutionEnvironment' => 'utils/PhutilExecutionEnvironment.php',
     'PhutilExtensionsTestCase' => 'moduleutils/__tests__/PhutilExtensionsTestCase.php',
     'PhutilFacebookAuthAdapter' => 'auth/PhutilFacebookAuthAdapter.php',
     'PhutilFatalDaemon' => 'daemon/torture/PhutilFatalDaemon.php',
     'PhutilFileLock' => 'filesystem/PhutilFileLock.php',
     'PhutilFileLockTestCase' => 'filesystem/__tests__/PhutilFileLockTestCase.php',
     'PhutilFileTree' => 'filesystem/PhutilFileTree.php',
     'PhutilFrenchLocale' => 'internationalization/locales/PhutilFrenchLocale.php',
     'PhutilGermanLocale' => 'internationalization/locales/PhutilGermanLocale.php',
     'PhutilGitHubAuthAdapter' => 'auth/PhutilGitHubAuthAdapter.php',
     'PhutilGitHubFuture' => 'future/github/PhutilGitHubFuture.php',
     'PhutilGitHubResponse' => 'future/github/PhutilGitHubResponse.php',
     'PhutilGitURI' => 'parser/PhutilGitURI.php',
     'PhutilGitURITestCase' => 'parser/__tests__/PhutilGitURITestCase.php',
     'PhutilGoogleAuthAdapter' => 'auth/PhutilGoogleAuthAdapter.php',
     'PhutilHTTPEngineExtension' => 'future/http/PhutilHTTPEngineExtension.php',
     'PhutilHangForeverDaemon' => 'daemon/torture/PhutilHangForeverDaemon.php',
     'PhutilHashingIterator' => 'utils/PhutilHashingIterator.php',
     'PhutilHashingIteratorTestCase' => 'utils/__tests__/PhutilHashingIteratorTestCase.php',
     'PhutilHelpArgumentWorkflow' => 'parser/argument/workflow/PhutilHelpArgumentWorkflow.php',
     'PhutilHgsprintfTestCase' => 'xsprintf/__tests__/PhutilHgsprintfTestCase.php',
     'PhutilHighIntensityIntervalDaemon' => 'daemon/torture/PhutilHighIntensityIntervalDaemon.php',
     'PhutilICSParser' => 'parser/calendar/ics/PhutilICSParser.php',
     'PhutilICSParserException' => 'parser/calendar/ics/PhutilICSParserException.php',
     'PhutilICSParserTestCase' => 'parser/calendar/ics/__tests__/PhutilICSParserTestCase.php',
     'PhutilICSWriter' => 'parser/calendar/ics/PhutilICSWriter.php',
     'PhutilICSWriterTestCase' => 'parser/calendar/ics/__tests__/PhutilICSWriterTestCase.php',
     'PhutilINIParserException' => 'parser/exception/PhutilINIParserException.php',
     'PhutilIPAddress' => 'ip/PhutilIPAddress.php',
     'PhutilIPAddressTestCase' => 'ip/__tests__/PhutilIPAddressTestCase.php',
     'PhutilInRequestKeyValueCache' => 'cache/PhutilInRequestKeyValueCache.php',
     'PhutilInteractiveEditor' => 'console/PhutilInteractiveEditor.php',
     'PhutilInvalidRuleParserGeneratorException' => 'parser/generator/exception/PhutilInvalidRuleParserGeneratorException.php',
     'PhutilInvalidStateException' => 'exception/PhutilInvalidStateException.php',
     'PhutilInvalidStateExceptionTestCase' => 'exception/__tests__/PhutilInvalidStateExceptionTestCase.php',
     'PhutilInvisibleSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilInvisibleSyntaxHighlighter.php',
     'PhutilIrreducibleRuleParserGeneratorException' => 'parser/generator/exception/PhutilIrreducibleRuleParserGeneratorException.php',
     'PhutilJIRAAuthAdapter' => 'auth/PhutilJIRAAuthAdapter.php',
     'PhutilJSON' => 'parser/PhutilJSON.php',
     'PhutilJSONFragmentLexer' => 'lexer/PhutilJSONFragmentLexer.php',
     'PhutilJSONFragmentLexerHighlighterTestCase' => 'markup/syntax/highlighter/__tests__/PhutilJSONFragmentLexerHighlighterTestCase.php',
     'PhutilJSONParser' => 'parser/PhutilJSONParser.php',
     'PhutilJSONParserException' => 'parser/exception/PhutilJSONParserException.php',
     'PhutilJSONParserTestCase' => 'parser/__tests__/PhutilJSONParserTestCase.php',
     'PhutilJSONProtocolChannel' => 'channel/PhutilJSONProtocolChannel.php',
     'PhutilJSONProtocolChannelTestCase' => 'channel/__tests__/PhutilJSONProtocolChannelTestCase.php',
     'PhutilJSONTestCase' => 'parser/__tests__/PhutilJSONTestCase.php',
     'PhutilJavaCodeSnippetContextFreeGrammar' => 'grammar/code/PhutilJavaCodeSnippetContextFreeGrammar.php',
     'PhutilKeyValueCache' => 'cache/PhutilKeyValueCache.php',
     'PhutilKeyValueCacheNamespace' => 'cache/PhutilKeyValueCacheNamespace.php',
     'PhutilKeyValueCacheProfiler' => 'cache/PhutilKeyValueCacheProfiler.php',
     'PhutilKeyValueCacheProxy' => 'cache/PhutilKeyValueCacheProxy.php',
     'PhutilKeyValueCacheStack' => 'cache/PhutilKeyValueCacheStack.php',
     'PhutilKeyValueCacheTestCase' => 'cache/__tests__/PhutilKeyValueCacheTestCase.php',
     'PhutilKoreanLocale' => 'internationalization/locales/PhutilKoreanLocale.php',
     'PhutilLDAPAuthAdapter' => 'auth/PhutilLDAPAuthAdapter.php',
     'PhutilLanguageGuesser' => 'parser/PhutilLanguageGuesser.php',
     'PhutilLanguageGuesserTestCase' => 'parser/__tests__/PhutilLanguageGuesserTestCase.php',
     'PhutilLexer' => 'lexer/PhutilLexer.php',
     'PhutilLexerSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilLexerSyntaxHighlighter.php',
     'PhutilLibraryConflictException' => 'moduleutils/PhutilLibraryConflictException.php',
     'PhutilLibraryMapBuilder' => 'moduleutils/PhutilLibraryMapBuilder.php',
     'PhutilLibraryTestCase' => '__tests__/PhutilLibraryTestCase.php',
     'PhutilLipsumContextFreeGrammar' => 'grammar/PhutilLipsumContextFreeGrammar.php',
     'PhutilLocale' => 'internationalization/PhutilLocale.php',
     'PhutilLocaleTestCase' => 'internationalization/__tests__/PhutilLocaleTestCase.php',
     'PhutilLock' => 'filesystem/PhutilLock.php',
     'PhutilLockException' => 'filesystem/PhutilLockException.php',
     'PhutilLogFileChannel' => 'channel/PhutilLogFileChannel.php',
     'PhutilLunarPhase' => 'utils/PhutilLunarPhase.php',
     'PhutilLunarPhaseTestCase' => 'utils/__tests__/PhutilLunarPhaseTestCase.php',
     'PhutilMarkupEngine' => 'markup/PhutilMarkupEngine.php',
     'PhutilMarkupTestCase' => 'markup/__tests__/PhutilMarkupTestCase.php',
     'PhutilMemcacheKeyValueCache' => 'cache/PhutilMemcacheKeyValueCache.php',
     'PhutilMethodNotImplementedException' => 'error/PhutilMethodNotImplementedException.php',
     'PhutilMetricsChannel' => 'channel/PhutilMetricsChannel.php',
     'PhutilMissingSymbolException' => 'symbols/exception/PhutilMissingSymbolException.php',
     'PhutilModuleUtilsTestCase' => 'moduleutils/__tests__/PhutilModuleUtilsTestCase.php',
     'PhutilNiceDaemon' => 'daemon/torture/PhutilNiceDaemon.php',
     'PhutilNumber' => 'internationalization/PhutilNumber.php',
     'PhutilOAuth1AuthAdapter' => 'auth/PhutilOAuth1AuthAdapter.php',
     'PhutilOAuth1Future' => 'future/oauth/PhutilOAuth1Future.php',
     'PhutilOAuth1FutureTestCase' => 'future/oauth/__tests__/PhutilOAuth1FutureTestCase.php',
     'PhutilOAuthAuthAdapter' => 'auth/PhutilOAuthAuthAdapter.php',
     'PhutilOnDiskKeyValueCache' => 'cache/PhutilOnDiskKeyValueCache.php',
     'PhutilOpaqueEnvelope' => 'error/PhutilOpaqueEnvelope.php',
     'PhutilOpaqueEnvelopeKey' => 'error/PhutilOpaqueEnvelopeKey.php',
     'PhutilOpaqueEnvelopeTestCase' => 'error/__tests__/PhutilOpaqueEnvelopeTestCase.php',
     'PhutilPHPCodeSnippetContextFreeGrammar' => 'grammar/code/PhutilPHPCodeSnippetContextFreeGrammar.php',
     'PhutilPHPFragmentLexer' => 'lexer/PhutilPHPFragmentLexer.php',
     'PhutilPHPFragmentLexerHighlighterTestCase' => 'markup/syntax/highlighter/__tests__/PhutilPHPFragmentLexerHighlighterTestCase.php',
     'PhutilPHPFragmentLexerTestCase' => 'lexer/__tests__/PhutilPHPFragmentLexerTestCase.php',
     'PhutilPHPObjectProtocolChannel' => 'channel/PhutilPHPObjectProtocolChannel.php',
     'PhutilPHPObjectProtocolChannelTestCase' => 'channel/__tests__/PhutilPHPObjectProtocolChannelTestCase.php',
     'PhutilParserGenerator' => 'parser/PhutilParserGenerator.php',
     'PhutilParserGeneratorException' => 'parser/generator/exception/PhutilParserGeneratorException.php',
     'PhutilParserGeneratorTestCase' => 'parser/__tests__/PhutilParserGeneratorTestCase.php',
     'PhutilPayPalAPIFuture' => 'future/paypal/PhutilPayPalAPIFuture.php',
     'PhutilPerson' => 'internationalization/PhutilPerson.php',
     'PhutilPersonTest' => 'internationalization/__tests__/PhutilPersonTest.php',
     'PhutilPersonaAuthAdapter' => 'auth/PhutilPersonaAuthAdapter.php',
     'PhutilPhabricatorAuthAdapter' => 'auth/PhutilPhabricatorAuthAdapter.php',
     'PhutilPhtTestCase' => 'internationalization/__tests__/PhutilPhtTestCase.php',
     'PhutilPirateEnglishLocale' => 'internationalization/locales/PhutilPirateEnglishLocale.php',
     'PhutilPortugueseBrazilLocale' => 'internationalization/locales/PhutilPortugueseBrazilLocale.php',
     'PhutilPortuguesePortugalLocale' => 'internationalization/locales/PhutilPortuguesePortugalLocale.php',
     'PhutilPregsprintfTestCase' => 'xsprintf/__tests__/PhutilPregsprintfTestCase.php',
     'PhutilProcessGroupDaemon' => 'daemon/torture/PhutilProcessGroupDaemon.php',
     'PhutilProseDiff' => 'utils/PhutilProseDiff.php',
     'PhutilProseDiffTestCase' => 'utils/__tests__/PhutilProseDiffTestCase.php',
     'PhutilProseDifferenceEngine' => 'utils/PhutilProseDifferenceEngine.php',
     'PhutilProtocolChannel' => 'channel/PhutilProtocolChannel.php',
     'PhutilProxyException' => 'error/PhutilProxyException.php',
     'PhutilProxyIterator' => 'utils/PhutilProxyIterator.php',
     'PhutilPygmentizeParser' => 'parser/PhutilPygmentizeParser.php',
     'PhutilPygmentizeParserTestCase' => 'parser/__tests__/PhutilPygmentizeParserTestCase.php',
     'PhutilPygmentsSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilPygmentsSyntaxHighlighter.php',
     'PhutilPythonFragmentLexer' => 'lexer/PhutilPythonFragmentLexer.php',
     'PhutilQsprintfInterface' => 'xsprintf/PhutilQsprintfInterface.php',
     'PhutilQueryStringParser' => 'parser/PhutilQueryStringParser.php',
     'PhutilQueryStringParserTestCase' => 'parser/__tests__/PhutilQueryStringParserTestCase.php',
     'PhutilRainbowSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilRainbowSyntaxHighlighter.php',
     'PhutilRawEnglishLocale' => 'internationalization/locales/PhutilRawEnglishLocale.php',
     'PhutilReadableSerializer' => 'readableserializer/PhutilReadableSerializer.php',
     'PhutilReadableSerializerTestCase' => 'readableserializer/__tests__/PhutilReadableSerializerTestCase.php',
     'PhutilRealNameContextFreeGrammar' => 'grammar/PhutilRealNameContextFreeGrammar.php',
     'PhutilRemarkupBlockInterpreter' => 'markup/engine/remarkup/blockrule/PhutilRemarkupBlockInterpreter.php',
     'PhutilRemarkupBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupBlockRule.php',
     'PhutilRemarkupBlockStorage' => 'markup/engine/remarkup/PhutilRemarkupBlockStorage.php',
     'PhutilRemarkupBoldRule' => 'markup/engine/remarkup/markuprule/PhutilRemarkupBoldRule.php',
     'PhutilRemarkupCodeBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupCodeBlockRule.php',
     'PhutilRemarkupDefaultBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupDefaultBlockRule.php',
     'PhutilRemarkupDelRule' => 'markup/engine/remarkup/markuprule/PhutilRemarkupDelRule.php',
     'PhutilRemarkupDocumentLinkRule' => 'markup/engine/remarkup/markuprule/PhutilRemarkupDocumentLinkRule.php',
     'PhutilRemarkupEngine' => 'markup/engine/PhutilRemarkupEngine.php',
     'PhutilRemarkupEngineTestCase' => 'markup/engine/__tests__/PhutilRemarkupEngineTestCase.php',
     'PhutilRemarkupEscapeRemarkupRule' => 'markup/engine/remarkup/markuprule/PhutilRemarkupEscapeRemarkupRule.php',
     'PhutilRemarkupHeaderBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupHeaderBlockRule.php',
     'PhutilRemarkupHighlightRule' => 'markup/engine/remarkup/markuprule/PhutilRemarkupHighlightRule.php',
     'PhutilRemarkupHorizontalRuleBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupHorizontalRuleBlockRule.php',
     'PhutilRemarkupHyperlinkRule' => 'markup/engine/remarkup/markuprule/PhutilRemarkupHyperlinkRule.php',
     'PhutilRemarkupInlineBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupInlineBlockRule.php',
     'PhutilRemarkupInterpreterBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupInterpreterBlockRule.php',
     'PhutilRemarkupItalicRule' => 'markup/engine/remarkup/markuprule/PhutilRemarkupItalicRule.php',
     'PhutilRemarkupLinebreaksRule' => 'markup/engine/remarkup/markuprule/PhutilRemarkupLinebreaksRule.php',
     'PhutilRemarkupListBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupListBlockRule.php',
     'PhutilRemarkupLiteralBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupLiteralBlockRule.php',
     'PhutilRemarkupMonospaceRule' => 'markup/engine/remarkup/markuprule/PhutilRemarkupMonospaceRule.php',
     'PhutilRemarkupNoteBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupNoteBlockRule.php',
     'PhutilRemarkupQuotesBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupQuotesBlockRule.php',
     'PhutilRemarkupReplyBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupReplyBlockRule.php',
     'PhutilRemarkupRule' => 'markup/engine/remarkup/markuprule/PhutilRemarkupRule.php',
     'PhutilRemarkupSimpleTableBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupSimpleTableBlockRule.php',
     'PhutilRemarkupTableBlockRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupTableBlockRule.php',
     'PhutilRemarkupTestInterpreterRule' => 'markup/engine/remarkup/blockrule/PhutilRemarkupTestInterpreterRule.php',
     'PhutilRemarkupUnderlineRule' => 'markup/engine/remarkup/markuprule/PhutilRemarkupUnderlineRule.php',
     'PhutilRope' => 'utils/PhutilRope.php',
     'PhutilRopeTestCase' => 'utils/__tests__/PhutilRopeTestCase.php',
     'PhutilSafeHTML' => 'markup/PhutilSafeHTML.php',
     'PhutilSafeHTMLProducerInterface' => 'markup/PhutilSafeHTMLProducerInterface.php',
     'PhutilSafeHTMLTestCase' => 'markup/__tests__/PhutilSafeHTMLTestCase.php',
     'PhutilSaturateStdoutDaemon' => 'daemon/torture/PhutilSaturateStdoutDaemon.php',
     'PhutilSearchQueryCompiler' => 'search/PhutilSearchQueryCompiler.php',
     'PhutilSearchQueryCompilerSyntaxException' => 'search/PhutilSearchQueryCompilerSyntaxException.php',
     'PhutilSearchQueryCompilerTestCase' => 'search/__tests__/PhutilSearchQueryCompilerTestCase.php',
+    'PhutilSearchStemmer' => 'search/PhutilSearchStemmer.php',
+    'PhutilSearchStemmerTestCase' => 'search/__tests__/PhutilSearchStemmerTestCase.php',
     'PhutilServiceProfiler' => 'serviceprofiler/PhutilServiceProfiler.php',
     'PhutilShellLexer' => 'lexer/PhutilShellLexer.php',
     'PhutilShellLexerTestCase' => 'lexer/__tests__/PhutilShellLexerTestCase.php',
     'PhutilSignalHandler' => 'future/exec/PhutilSignalHandler.php',
     'PhutilSignalRouter' => 'future/exec/PhutilSignalRouter.php',
     'PhutilSimpleOptions' => 'parser/PhutilSimpleOptions.php',
     'PhutilSimpleOptionsLexer' => 'lexer/PhutilSimpleOptionsLexer.php',
     'PhutilSimpleOptionsLexerTestCase' => 'lexer/__tests__/PhutilSimpleOptionsLexerTestCase.php',
     'PhutilSimpleOptionsTestCase' => 'parser/__tests__/PhutilSimpleOptionsTestCase.php',
     'PhutilSimplifiedChineseLocale' => 'internationalization/locales/PhutilSimplifiedChineseLocale.php',
     'PhutilSlackAuthAdapter' => 'auth/PhutilSlackAuthAdapter.php',
     'PhutilSlackFuture' => 'future/slack/PhutilSlackFuture.php',
     'PhutilSocketChannel' => 'channel/PhutilSocketChannel.php',
     'PhutilSortVector' => 'utils/PhutilSortVector.php',
     'PhutilSpanishSpainLocale' => 'internationalization/locales/PhutilSpanishSpainLocale.php',
     'PhutilSprite' => 'sprites/PhutilSprite.php',
     'PhutilSpriteSheet' => 'sprites/PhutilSpriteSheet.php',
     'PhutilStreamIterator' => 'utils/PhutilStreamIterator.php',
     'PhutilSymbolLoader' => 'symbols/PhutilSymbolLoader.php',
     'PhutilSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilSyntaxHighlighter.php',
     'PhutilSyntaxHighlighterEngine' => 'markup/syntax/engine/PhutilSyntaxHighlighterEngine.php',
     'PhutilSyntaxHighlighterException' => 'markup/syntax/highlighter/PhutilSyntaxHighlighterException.php',
     'PhutilSystem' => 'utils/PhutilSystem.php',
     'PhutilSystemTestCase' => 'utils/__tests__/PhutilSystemTestCase.php',
     'PhutilTerminalString' => 'xsprintf/PhutilTerminalString.php',
     'PhutilTestPhobject' => 'object/__tests__/PhutilTestPhobject.php',
     'PhutilTortureTestDaemon' => 'daemon/torture/PhutilTortureTestDaemon.php',
     'PhutilTraditionalChineseLocale' => 'internationalization/locales/PhutilTraditionalChineseLocale.php',
     'PhutilTranslation' => 'internationalization/PhutilTranslation.php',
     'PhutilTranslationTestCase' => 'internationalization/__tests__/PhutilTranslationTestCase.php',
     'PhutilTranslator' => 'internationalization/PhutilTranslator.php',
     'PhutilTranslatorTestCase' => 'internationalization/__tests__/PhutilTranslatorTestCase.php',
     'PhutilTsprintfTestCase' => 'xsprintf/__tests__/PhutilTsprintfTestCase.php',
     'PhutilTwitchAuthAdapter' => 'auth/PhutilTwitchAuthAdapter.php',
     'PhutilTwitchFuture' => 'future/twitch/PhutilTwitchFuture.php',
     'PhutilTwitterAuthAdapter' => 'auth/PhutilTwitterAuthAdapter.php',
     'PhutilTypeCheckException' => 'parser/exception/PhutilTypeCheckException.php',
     'PhutilTypeExtraParametersException' => 'parser/exception/PhutilTypeExtraParametersException.php',
     'PhutilTypeLexer' => 'lexer/PhutilTypeLexer.php',
     'PhutilTypeMissingParametersException' => 'parser/exception/PhutilTypeMissingParametersException.php',
     'PhutilTypeSpec' => 'parser/PhutilTypeSpec.php',
     'PhutilTypeSpecTestCase' => 'parser/__tests__/PhutilTypeSpecTestCase.php',
     'PhutilURI' => 'parser/PhutilURI.php',
     'PhutilURITestCase' => 'parser/__tests__/PhutilURITestCase.php',
     'PhutilUSEnglishLocale' => 'internationalization/locales/PhutilUSEnglishLocale.php',
     'PhutilUTF8StringTruncator' => 'utils/PhutilUTF8StringTruncator.php',
     'PhutilUTF8TestCase' => 'utils/__tests__/PhutilUTF8TestCase.php',
     'PhutilUnknownSymbolParserGeneratorException' => 'parser/generator/exception/PhutilUnknownSymbolParserGeneratorException.php',
     'PhutilUnreachableRuleParserGeneratorException' => 'parser/generator/exception/PhutilUnreachableRuleParserGeneratorException.php',
     'PhutilUnreachableTerminalParserGeneratorException' => 'parser/generator/exception/PhutilUnreachableTerminalParserGeneratorException.php',
     'PhutilUrisprintfTestCase' => 'xsprintf/__tests__/PhutilUrisprintfTestCase.php',
     'PhutilUtilsTestCase' => 'utils/__tests__/PhutilUtilsTestCase.php',
     'PhutilVeryWowEnglishLocale' => 'internationalization/locales/PhutilVeryWowEnglishLocale.php',
     'PhutilWordPressAuthAdapter' => 'auth/PhutilWordPressAuthAdapter.php',
     'PhutilWordPressFuture' => 'future/wordpress/PhutilWordPressFuture.php',
     'PhutilXHPASTBinary' => 'parser/xhpast/bin/PhutilXHPASTBinary.php',
     'PhutilXHPASTSyntaxHighlighter' => 'markup/syntax/highlighter/PhutilXHPASTSyntaxHighlighter.php',
     'PhutilXHPASTSyntaxHighlighterFuture' => 'markup/syntax/highlighter/xhpast/PhutilXHPASTSyntaxHighlighterFuture.php',
     'PhutilXHPASTSyntaxHighlighterTestCase' => 'markup/syntax/highlighter/__tests__/PhutilXHPASTSyntaxHighlighterTestCase.php',
     'QueryFuture' => 'future/query/QueryFuture.php',
     'TempFile' => 'filesystem/TempFile.php',
     'TestAbstractDirectedGraph' => 'utils/__tests__/TestAbstractDirectedGraph.php',
     'XHPASTNode' => 'parser/xhpast/api/XHPASTNode.php',
     'XHPASTNodeTestCase' => 'parser/xhpast/api/__tests__/XHPASTNodeTestCase.php',
     'XHPASTSyntaxErrorException' => 'parser/xhpast/api/XHPASTSyntaxErrorException.php',
     'XHPASTToken' => 'parser/xhpast/api/XHPASTToken.php',
     'XHPASTTree' => 'parser/xhpast/api/XHPASTTree.php',
     'XHPASTTreeTestCase' => 'parser/xhpast/api/__tests__/XHPASTTreeTestCase.php',
     'XsprintfUnknownConversionException' => 'xsprintf/exception/XsprintfUnknownConversionException.php',
   ),
   'function' => array(
     'array_fuse' => 'utils/utils.php',
     'array_interleave' => 'utils/utils.php',
     'array_mergev' => 'utils/utils.php',
     'array_select_keys' => 'utils/utils.php',
     'assert_instances_of' => 'utils/utils.php',
     'assert_stringlike' => 'utils/utils.php',
     'coalesce' => 'utils/utils.php',
     'csprintf' => 'xsprintf/csprintf.php',
     'exec_manual' => 'future/exec/execx.php',
     'execx' => 'future/exec/execx.php',
     'head' => 'utils/utils.php',
     'head_key' => 'utils/utils.php',
     'hgsprintf' => 'xsprintf/hgsprintf.php',
     'hsprintf' => 'markup/render.php',
     'id' => 'utils/utils.php',
     'idx' => 'utils/utils.php',
     'idxv' => 'utils/utils.php',
     'ifilter' => 'utils/utils.php',
     'igroup' => 'utils/utils.php',
     'ipull' => 'utils/utils.php',
     'isort' => 'utils/utils.php',
     'jsprintf' => 'xsprintf/jsprintf.php',
     'last' => 'utils/utils.php',
     'last_key' => 'utils/utils.php',
     'ldap_sprintf' => 'xsprintf/ldapsprintf.php',
     'mfilter' => 'utils/utils.php',
     'mgroup' => 'utils/utils.php',
     'mpull' => 'utils/utils.php',
     'msort' => 'utils/utils.php',
     'msortv' => 'utils/utils.php',
     'newv' => 'utils/utils.php',
     'nonempty' => 'utils/utils.php',
     'phlog' => 'error/phlog.php',
     'pht' => 'internationalization/pht.php',
     'phutil_censor_credentials' => 'utils/utils.php',
     'phutil_console_confirm' => 'console/format.php',
     'phutil_console_format' => 'console/format.php',
     'phutil_console_get_terminal_width' => 'console/format.php',
     'phutil_console_prompt' => 'console/format.php',
     'phutil_console_require_tty' => 'console/format.php',
     'phutil_console_select' => 'console/format.php',
     'phutil_console_wrap' => 'console/format.php',
     'phutil_count' => 'internationalization/pht.php',
     'phutil_date_format' => 'utils/viewutils.php',
     'phutil_deprecated' => 'moduleutils/moduleutils.php',
     'phutil_error_listener_example' => 'error/phlog.php',
     'phutil_escape_html' => 'markup/render.php',
     'phutil_escape_html_newlines' => 'markup/render.php',
     'phutil_escape_uri' => 'markup/render.php',
     'phutil_escape_uri_path_component' => 'markup/render.php',
     'phutil_fnmatch' => 'utils/utils.php',
     'phutil_format_bytes' => 'utils/viewutils.php',
     'phutil_format_relative_time' => 'utils/viewutils.php',
     'phutil_format_relative_time_detailed' => 'utils/viewutils.php',
     'phutil_format_units_generic' => 'utils/viewutils.php',
     'phutil_fwrite_nonblocking_stream' => 'utils/utils.php',
     'phutil_get_current_library_name' => 'moduleutils/moduleutils.php',
     'phutil_get_library_name_for_root' => 'moduleutils/moduleutils.php',
     'phutil_get_library_root' => 'moduleutils/moduleutils.php',
     'phutil_get_library_root_for_path' => 'moduleutils/moduleutils.php',
     'phutil_get_signal_name' => 'future/exec/execx.php',
     'phutil_hashes_are_identical' => 'utils/utils.php',
     'phutil_implode_html' => 'markup/render.php',
     'phutil_ini_decode' => 'utils/utils.php',
     'phutil_is_hiphop_runtime' => 'utils/utils.php',
     'phutil_is_utf8' => 'utils/utf8.php',
     'phutil_is_utf8_slowly' => 'utils/utf8.php',
     'phutil_is_utf8_with_only_bmp_characters' => 'utils/utf8.php',
     'phutil_is_windows' => 'utils/utils.php',
     'phutil_json_decode' => 'utils/utils.php',
     'phutil_json_encode' => 'utils/utils.php',
     'phutil_load_library' => 'moduleutils/core.php',
     'phutil_loggable_string' => 'utils/utils.php',
     'phutil_parse_bytes' => 'utils/viewutils.php',
     'phutil_passthru' => 'future/exec/execx.php',
     'phutil_person' => 'internationalization/pht.php',
     'phutil_register_library' => 'moduleutils/core.php',
     'phutil_register_library_map' => 'moduleutils/core.php',
     'phutil_safe_html' => 'markup/render.php',
     'phutil_split_lines' => 'utils/utils.php',
     'phutil_tag' => 'markup/render.php',
     'phutil_tag_div' => 'markup/render.php',
     'phutil_unescape_uri_path_component' => 'markup/render.php',
     'phutil_units' => 'utils/utils.php',
     'phutil_utf8_console_strlen' => 'utils/utf8.php',
     'phutil_utf8_convert' => 'utils/utf8.php',
     'phutil_utf8_encode_codepoint' => 'utils/utf8.php',
     'phutil_utf8_hard_wrap' => 'utils/utf8.php',
     'phutil_utf8_hard_wrap_html' => 'utils/utf8.php',
     'phutil_utf8_is_combining_character' => 'utils/utf8.php',
     'phutil_utf8_strlen' => 'utils/utf8.php',
     'phutil_utf8_strtolower' => 'utils/utf8.php',
     'phutil_utf8_strtoupper' => 'utils/utf8.php',
     'phutil_utf8_strtr' => 'utils/utf8.php',
     'phutil_utf8_ucwords' => 'utils/utf8.php',
     'phutil_utf8ize' => 'utils/utf8.php',
     'phutil_utf8v' => 'utils/utf8.php',
     'phutil_utf8v_codepoints' => 'utils/utf8.php',
     'phutil_utf8v_combine_characters' => 'utils/utf8.php',
     'phutil_utf8v_combined' => 'utils/utf8.php',
     'phutil_validate_json' => 'utils/utils.php',
     'phutil_var_export' => 'utils/utils.php',
     'ppull' => 'utils/utils.php',
     'pregsprintf' => 'xsprintf/pregsprintf.php',
     'qsprintf' => 'xsprintf/qsprintf.php',
     'qsprintf_check_scalar_type' => 'xsprintf/qsprintf.php',
     'qsprintf_check_type' => 'xsprintf/qsprintf.php',
     'queryfx' => 'xsprintf/queryfx.php',
     'queryfx_all' => 'xsprintf/queryfx.php',
     'queryfx_one' => 'xsprintf/queryfx.php',
     'tsprintf' => 'xsprintf/tsprintf.php',
     'urisprintf' => 'xsprintf/urisprintf.php',
     'vcsprintf' => 'xsprintf/csprintf.php',
     'vjsprintf' => 'xsprintf/jsprintf.php',
     'vqsprintf' => 'xsprintf/qsprintf.php',
     'vurisprintf' => 'xsprintf/urisprintf.php',
     'xhp_parser_node_constants' => 'parser/xhpast/parser_nodes.php',
     'xhpast_parser_token_constants' => 'parser/xhpast/parser_tokens.php',
     'xsprintf' => 'xsprintf/xsprintf.php',
     'xsprintf_callback_example' => 'xsprintf/xsprintf.php',
     'xsprintf_command' => 'xsprintf/csprintf.php',
     'xsprintf_javascript' => 'xsprintf/jsprintf.php',
     'xsprintf_ldap' => 'xsprintf/ldapsprintf.php',
     'xsprintf_mercurial' => 'xsprintf/hgsprintf.php',
     'xsprintf_query' => 'xsprintf/qsprintf.php',
     'xsprintf_regex' => 'xsprintf/pregsprintf.php',
     'xsprintf_terminal' => 'xsprintf/tsprintf.php',
     'xsprintf_uri' => 'xsprintf/urisprintf.php',
   ),
   'xmap' => array(
     'AASTNode' => 'Phobject',
     'AASTNodeList' => array(
       'Phobject',
       'Countable',
       'Iterator',
     ),
     'AASTToken' => 'Phobject',
     'AASTTree' => 'Phobject',
     'AbstractDirectedGraph' => 'Phobject',
     'AbstractDirectedGraphTestCase' => 'PhutilTestCase',
     'AphrontAccessDeniedQueryException' => 'AphrontQueryException',
     'AphrontBaseMySQLDatabaseConnection' => 'AphrontDatabaseConnection',
     'AphrontCharacterSetQueryException' => 'AphrontQueryException',
     'AphrontConnectionLostQueryException' => 'AphrontRecoverableQueryException',
     'AphrontConnectionQueryException' => 'AphrontQueryException',
     'AphrontCountQueryException' => 'AphrontQueryException',
     'AphrontDatabaseConnection' => array(
       'Phobject',
       'PhutilQsprintfInterface',
     ),
     'AphrontDatabaseTransactionState' => 'Phobject',
     'AphrontDeadlockQueryException' => 'AphrontRecoverableQueryException',
     'AphrontDuplicateKeyQueryException' => 'AphrontQueryException',
     'AphrontInvalidCredentialsQueryException' => 'AphrontQueryException',
     'AphrontIsolatedDatabaseConnection' => 'AphrontDatabaseConnection',
     'AphrontLockTimeoutQueryException' => 'AphrontRecoverableQueryException',
     'AphrontMySQLDatabaseConnection' => 'AphrontBaseMySQLDatabaseConnection',
     'AphrontMySQLiDatabaseConnection' => 'AphrontBaseMySQLDatabaseConnection',
     'AphrontNotSupportedQueryException' => 'AphrontQueryException',
     'AphrontObjectMissingQueryException' => 'AphrontQueryException',
     'AphrontParameterQueryException' => 'AphrontQueryException',
     'AphrontQueryException' => 'Exception',
     'AphrontQueryTimeoutQueryException' => 'AphrontRecoverableQueryException',
     'AphrontRecoverableQueryException' => 'AphrontQueryException',
     'AphrontRequestStream' => 'Phobject',
     'AphrontSchemaQueryException' => 'AphrontQueryException',
     'AphrontScopedUnguardedWriteCapability' => 'Phobject',
     'AphrontWriteGuard' => 'Phobject',
     'BaseHTTPFuture' => 'Future',
     'CaseInsensitiveArray' => 'PhutilArray',
     'CaseInsensitiveArrayTestCase' => 'PhutilTestCase',
     'CommandException' => 'Exception',
     'ConduitClient' => 'Phobject',
     'ConduitClientException' => 'Exception',
     'ConduitClientTestCase' => 'PhutilTestCase',
     'ConduitFuture' => 'FutureProxy',
     'ExecFuture' => 'PhutilExecutableFuture',
     'ExecFutureTestCase' => 'PhutilTestCase',
     'ExecPassthruTestCase' => 'PhutilTestCase',
     'FileFinder' => 'Phobject',
     'FileFinderTestCase' => 'PhutilTestCase',
     'FileList' => 'Phobject',
     'Filesystem' => 'Phobject',
     'FilesystemException' => 'Exception',
     'FilesystemTestCase' => 'PhutilTestCase',
     'Future' => 'Phobject',
     'FutureIterator' => array(
       'Phobject',
       'Iterator',
     ),
     'FutureIteratorTestCase' => 'PhutilTestCase',
     'FutureProxy' => 'Future',
     'HTTPFuture' => 'BaseHTTPFuture',
     'HTTPFutureCURLResponseStatus' => 'HTTPFutureResponseStatus',
     'HTTPFutureCertificateResponseStatus' => 'HTTPFutureResponseStatus',
     'HTTPFutureHTTPResponseStatus' => 'HTTPFutureResponseStatus',
     'HTTPFutureParseResponseStatus' => 'HTTPFutureResponseStatus',
     'HTTPFutureResponseStatus' => 'Exception',
     'HTTPFutureTransportResponseStatus' => 'HTTPFutureResponseStatus',
     'HTTPSFuture' => 'BaseHTTPFuture',
     'ImmediateFuture' => 'Future',
     'LibphutilUSEnglishTranslation' => 'PhutilTranslation',
     'LinesOfALarge' => array(
       'Phobject',
       'Iterator',
     ),
     'LinesOfALargeExecFuture' => 'LinesOfALarge',
     'LinesOfALargeExecFutureTestCase' => 'PhutilTestCase',
     'LinesOfALargeFile' => 'LinesOfALarge',
     'LinesOfALargeFileTestCase' => 'PhutilTestCase',
     'MFilterTestHelper' => 'Phobject',
     'PHPASTParserTestCase' => 'PhutilTestCase',
     'PhageAgentBootloader' => 'Phobject',
     'PhageAgentTestCase' => 'PhutilTestCase',
     'PhagePHPAgent' => 'Phobject',
     'PhagePHPAgentBootloader' => 'PhageAgentBootloader',
     'Phobject' => 'Iterator',
     'PhobjectTestCase' => 'PhutilTestCase',
     'PhutilAPCKeyValueCache' => 'PhutilKeyValueCache',
     'PhutilAWSEC2Future' => 'PhutilAWSFuture',
     'PhutilAWSException' => 'Exception',
     'PhutilAWSFuture' => 'FutureProxy',
     'PhutilAWSManagementWorkflow' => 'PhutilArgumentWorkflow',
     'PhutilAWSS3DeleteManagementWorkflow' => 'PhutilAWSS3ManagementWorkflow',
     'PhutilAWSS3Future' => 'PhutilAWSFuture',
     'PhutilAWSS3GetManagementWorkflow' => 'PhutilAWSS3ManagementWorkflow',
     'PhutilAWSS3ManagementWorkflow' => 'PhutilAWSManagementWorkflow',
     'PhutilAWSS3PutManagementWorkflow' => 'PhutilAWSS3ManagementWorkflow',
     'PhutilAWSv4Signature' => 'Phobject',
     'PhutilAWSv4SignatureTestCase' => 'PhutilTestCase',
     'PhutilAggregateException' => 'Exception',
     'PhutilAllCapsEnglishLocale' => 'PhutilLocale',
     'PhutilAmazonAuthAdapter' => 'PhutilOAuthAuthAdapter',
     'PhutilArgumentParser' => 'Phobject',
     'PhutilArgumentParserException' => 'Exception',
     'PhutilArgumentParserTestCase' => 'PhutilTestCase',
     'PhutilArgumentSpecification' => 'Phobject',
     'PhutilArgumentSpecificationException' => 'PhutilArgumentParserException',
     'PhutilArgumentSpecificationTestCase' => 'PhutilTestCase',
     'PhutilArgumentSpellingCorrector' => 'Phobject',
     'PhutilArgumentSpellingCorrectorTestCase' => 'PhutilTestCase',
     'PhutilArgumentUsageException' => 'PhutilArgumentParserException',
     'PhutilArgumentWorkflow' => 'Phobject',
     'PhutilArray' => array(
       'Phobject',
       'Countable',
       'ArrayAccess',
       'Iterator',
     ),
     'PhutilArrayTestCase' => 'PhutilTestCase',
     'PhutilArrayWithDefaultValue' => 'PhutilArray',
     'PhutilAsanaAuthAdapter' => 'PhutilOAuthAuthAdapter',
     'PhutilAsanaFuture' => 'FutureProxy',
     'PhutilAuthAdapter' => 'Phobject',
     'PhutilAuthConfigurationException' => 'PhutilAuthException',
     'PhutilAuthCredentialException' => 'PhutilAuthException',
     'PhutilAuthException' => 'Exception',
     'PhutilAuthUserAbortedException' => 'PhutilAuthException',
     'PhutilBacktraceSignalHandler' => 'PhutilSignalHandler',
     'PhutilBallOfPHP' => 'Phobject',
     'PhutilBitbucketAuthAdapter' => 'PhutilOAuth1AuthAdapter',
     'PhutilBootloaderException' => 'Exception',
     'PhutilBritishEnglishLocale' => 'PhutilLocale',
     'PhutilBufferedIterator' => array(
       'Phobject',
       'Iterator',
     ),
     'PhutilBufferedIteratorTestCase' => 'PhutilTestCase',
     'PhutilBugtraqParser' => 'Phobject',
     'PhutilBugtraqParserTestCase' => 'PhutilTestCase',
     'PhutilCIDRBlock' => 'Phobject',
     'PhutilCIDRList' => 'Phobject',
     'PhutilCLikeCodeSnippetContextFreeGrammar' => 'PhutilCodeSnippetContextFreeGrammar',
     'PhutilCalendarAbsoluteDateTime' => 'PhutilCalendarDateTime',
     'PhutilCalendarContainerNode' => 'PhutilCalendarNode',
     'PhutilCalendarDateTime' => 'Phobject',
     'PhutilCalendarDocumentNode' => 'PhutilCalendarContainerNode',
     'PhutilCalendarDuration' => 'Phobject',
     'PhutilCalendarEventNode' => 'PhutilCalendarContainerNode',
     'PhutilCalendarNode' => 'Phobject',
     'PhutilCalendarProxyDateTime' => 'PhutilCalendarDateTime',
     'PhutilCalendarRawNode' => 'PhutilCalendarContainerNode',
     'PhutilCalendarRecurrenceList' => 'PhutilCalendarRecurrenceSource',
     'PhutilCalendarRecurrenceRule' => 'PhutilCalendarRecurrenceSource',
     'PhutilCalendarRecurrenceRuleTestCase' => 'PhutilTestCase',
     'PhutilCalendarRecurrenceSet' => 'Phobject',
     'PhutilCalendarRecurrenceSource' => 'Phobject',
     'PhutilCalendarRecurrenceTestCase' => 'PhutilTestCase',
     'PhutilCalendarRelativeDateTime' => 'PhutilCalendarProxyDateTime',
     'PhutilCalendarRootNode' => 'PhutilCalendarContainerNode',
     'PhutilCalendarUserNode' => 'PhutilCalendarNode',
     'PhutilCallbackFilterIterator' => 'FilterIterator',
     'PhutilCallbackSignalHandler' => 'PhutilSignalHandler',
     'PhutilChannel' => 'Phobject',
     'PhutilChannelChannel' => 'PhutilChannel',
     'PhutilChannelTestCase' => 'PhutilTestCase',
     'PhutilChunkedIterator' => array(
       'Phobject',
       'Iterator',
     ),
     'PhutilChunkedIteratorTestCase' => 'PhutilTestCase',
     'PhutilClassMapQuery' => 'Phobject',
     'PhutilCodeSnippetContextFreeGrammar' => 'PhutilContextFreeGrammar',
     'PhutilCommandString' => 'Phobject',
     'PhutilConsole' => 'Phobject',
     'PhutilConsoleBlock' => 'PhutilConsoleView',
     'PhutilConsoleConcatenatedView' => 'PhutilConsoleView',
     'PhutilConsoleFormatter' => 'Phobject',
     'PhutilConsoleList' => 'PhutilConsoleView',
     'PhutilConsoleMessage' => 'Phobject',
     'PhutilConsoleProgressBar' => 'Phobject',
     'PhutilConsoleServer' => 'Phobject',
     'PhutilConsoleServerChannel' => 'PhutilChannelChannel',
     'PhutilConsoleStdinNotInteractiveException' => 'Exception',
     'PhutilConsoleSyntaxHighlighter' => 'Phobject',
     'PhutilConsoleTable' => 'PhutilConsoleView',
     'PhutilConsoleView' => 'Phobject',
     'PhutilConsoleWrapTestCase' => 'PhutilTestCase',
     'PhutilContextFreeGrammar' => 'Phobject',
     'PhutilCowsay' => 'Phobject',
     'PhutilCowsayTestCase' => 'PhutilTestCase',
     'PhutilCsprintfTestCase' => 'PhutilTestCase',
     'PhutilCzechLocale' => 'PhutilLocale',
     'PhutilDaemon' => 'Phobject',
     'PhutilDaemonHandle' => 'Phobject',
     'PhutilDaemonOverseer' => 'Phobject',
     'PhutilDaemonOverseerModule' => 'Phobject',
     'PhutilDefaultSyntaxHighlighter' => 'Phobject',
     'PhutilDefaultSyntaxHighlighterEngine' => 'PhutilSyntaxHighlighterEngine',
     'PhutilDefaultSyntaxHighlighterEnginePygmentsFuture' => 'FutureProxy',
     'PhutilDefaultSyntaxHighlighterEngineTestCase' => 'PhutilTestCase',
     'PhutilDeferredLog' => 'Phobject',
     'PhutilDeferredLogTestCase' => 'PhutilTestCase',
     'PhutilDirectedScalarGraph' => 'AbstractDirectedGraph',
     'PhutilDirectoryFixture' => 'Phobject',
     'PhutilDirectoryKeyValueCache' => 'PhutilKeyValueCache',
     'PhutilDisqusAuthAdapter' => 'PhutilOAuthAuthAdapter',
     'PhutilDivinerSyntaxHighlighter' => 'Phobject',
     'PhutilDocblockParser' => 'Phobject',
     'PhutilDocblockParserTestCase' => 'PhutilTestCase',
     'PhutilEditDistanceMatrix' => 'Phobject',
     'PhutilEditDistanceMatrixTestCase' => 'PhutilTestCase',
     'PhutilEditorConfig' => 'Phobject',
     'PhutilEditorConfigTestCase' => 'PhutilTestCase',
     'PhutilEmailAddress' => 'Phobject',
     'PhutilEmailAddressTestCase' => 'PhutilTestCase',
     'PhutilEmojiLocale' => 'PhutilLocale',
     'PhutilEmptyAuthAdapter' => 'PhutilAuthAdapter',
     'PhutilEnglishCanadaLocale' => 'PhutilLocale',
     'PhutilErrorHandler' => 'Phobject',
     'PhutilErrorHandlerTestCase' => 'PhutilTestCase',
     'PhutilErrorTrap' => 'Phobject',
     'PhutilEvent' => 'Phobject',
     'PhutilEventConstants' => 'Phobject',
     'PhutilEventEngine' => 'Phobject',
     'PhutilEventListener' => 'Phobject',
     'PhutilEventType' => 'PhutilEventConstants',
     'PhutilExampleBufferedIterator' => 'PhutilBufferedIterator',
     'PhutilExcessiveServiceCallsDaemon' => 'PhutilTortureTestDaemon',
     'PhutilExecChannel' => 'PhutilChannel',
     'PhutilExecPassthru' => 'PhutilExecutableFuture',
     'PhutilExecutableFuture' => 'Future',
     'PhutilExecutionEnvironment' => 'Phobject',
     'PhutilExtensionsTestCase' => 'PhutilTestCase',
     'PhutilFacebookAuthAdapter' => 'PhutilOAuthAuthAdapter',
     'PhutilFatalDaemon' => 'PhutilTortureTestDaemon',
     'PhutilFileLock' => 'PhutilLock',
     'PhutilFileLockTestCase' => 'PhutilTestCase',
     'PhutilFileTree' => 'Phobject',
     'PhutilFrenchLocale' => 'PhutilLocale',
     'PhutilGermanLocale' => 'PhutilLocale',
     'PhutilGitHubAuthAdapter' => 'PhutilOAuthAuthAdapter',
     'PhutilGitHubFuture' => 'FutureProxy',
     'PhutilGitHubResponse' => 'Phobject',
     'PhutilGitURI' => 'Phobject',
     'PhutilGitURITestCase' => 'PhutilTestCase',
     'PhutilGoogleAuthAdapter' => 'PhutilOAuthAuthAdapter',
     'PhutilHTTPEngineExtension' => 'Phobject',
     'PhutilHangForeverDaemon' => 'PhutilTortureTestDaemon',
     'PhutilHashingIterator' => array(
       'PhutilProxyIterator',
       'Iterator',
     ),
     'PhutilHashingIteratorTestCase' => 'PhutilTestCase',
     'PhutilHelpArgumentWorkflow' => 'PhutilArgumentWorkflow',
     'PhutilHgsprintfTestCase' => 'PhutilTestCase',
     'PhutilHighIntensityIntervalDaemon' => 'PhutilTortureTestDaemon',
     'PhutilICSParser' => 'Phobject',
     'PhutilICSParserException' => 'Exception',
     'PhutilICSParserTestCase' => 'PhutilTestCase',
     'PhutilICSWriter' => 'Phobject',
     'PhutilICSWriterTestCase' => 'PhutilTestCase',
     'PhutilINIParserException' => 'Exception',
     'PhutilIPAddress' => 'Phobject',
     'PhutilIPAddressTestCase' => 'PhutilTestCase',
     'PhutilInRequestKeyValueCache' => 'PhutilKeyValueCache',
     'PhutilInteractiveEditor' => 'Phobject',
     'PhutilInvalidRuleParserGeneratorException' => 'PhutilParserGeneratorException',
     'PhutilInvalidStateException' => 'Exception',
     'PhutilInvalidStateExceptionTestCase' => 'PhutilTestCase',
     'PhutilInvisibleSyntaxHighlighter' => 'Phobject',
     'PhutilIrreducibleRuleParserGeneratorException' => 'PhutilParserGeneratorException',
     'PhutilJIRAAuthAdapter' => 'PhutilOAuth1AuthAdapter',
     'PhutilJSON' => 'Phobject',
     'PhutilJSONFragmentLexer' => 'PhutilLexer',
     'PhutilJSONFragmentLexerHighlighterTestCase' => 'PhutilTestCase',
     'PhutilJSONParser' => 'Phobject',
     'PhutilJSONParserException' => 'Exception',
     'PhutilJSONParserTestCase' => 'PhutilTestCase',
     'PhutilJSONProtocolChannel' => 'PhutilProtocolChannel',
     'PhutilJSONProtocolChannelTestCase' => 'PhutilTestCase',
     'PhutilJSONTestCase' => 'PhutilTestCase',
     'PhutilJavaCodeSnippetContextFreeGrammar' => 'PhutilCLikeCodeSnippetContextFreeGrammar',
     'PhutilKeyValueCache' => 'Phobject',
     'PhutilKeyValueCacheNamespace' => 'PhutilKeyValueCacheProxy',
     'PhutilKeyValueCacheProfiler' => 'PhutilKeyValueCacheProxy',
     'PhutilKeyValueCacheProxy' => 'PhutilKeyValueCache',
     'PhutilKeyValueCacheStack' => 'PhutilKeyValueCache',
     'PhutilKeyValueCacheTestCase' => 'PhutilTestCase',
     'PhutilKoreanLocale' => 'PhutilLocale',
     'PhutilLDAPAuthAdapter' => 'PhutilAuthAdapter',
     'PhutilLanguageGuesser' => 'Phobject',
     'PhutilLanguageGuesserTestCase' => 'PhutilTestCase',
     'PhutilLexer' => 'Phobject',
     'PhutilLexerSyntaxHighlighter' => 'PhutilSyntaxHighlighter',
     'PhutilLibraryConflictException' => 'Exception',
     'PhutilLibraryMapBuilder' => 'Phobject',
     'PhutilLibraryTestCase' => 'PhutilTestCase',
     'PhutilLipsumContextFreeGrammar' => 'PhutilContextFreeGrammar',
     'PhutilLocale' => 'Phobject',
     'PhutilLocaleTestCase' => 'PhutilTestCase',
     'PhutilLock' => 'Phobject',
     'PhutilLockException' => 'Exception',
     'PhutilLogFileChannel' => 'PhutilChannelChannel',
     'PhutilLunarPhase' => 'Phobject',
     'PhutilLunarPhaseTestCase' => 'PhutilTestCase',
     'PhutilMarkupEngine' => 'Phobject',
     'PhutilMarkupTestCase' => 'PhutilTestCase',
     'PhutilMemcacheKeyValueCache' => 'PhutilKeyValueCache',
     'PhutilMethodNotImplementedException' => 'Exception',
     'PhutilMetricsChannel' => 'PhutilChannelChannel',
     'PhutilMissingSymbolException' => 'Exception',
     'PhutilModuleUtilsTestCase' => 'PhutilTestCase',
     'PhutilNiceDaemon' => 'PhutilTortureTestDaemon',
     'PhutilNumber' => 'Phobject',
     'PhutilOAuth1AuthAdapter' => 'PhutilAuthAdapter',
     'PhutilOAuth1Future' => 'FutureProxy',
     'PhutilOAuth1FutureTestCase' => 'PhutilTestCase',
     'PhutilOAuthAuthAdapter' => 'PhutilAuthAdapter',
     'PhutilOnDiskKeyValueCache' => 'PhutilKeyValueCache',
     'PhutilOpaqueEnvelope' => 'Phobject',
     'PhutilOpaqueEnvelopeKey' => 'Phobject',
     'PhutilOpaqueEnvelopeTestCase' => 'PhutilTestCase',
     'PhutilPHPCodeSnippetContextFreeGrammar' => 'PhutilCLikeCodeSnippetContextFreeGrammar',
     'PhutilPHPFragmentLexer' => 'PhutilLexer',
     'PhutilPHPFragmentLexerHighlighterTestCase' => 'PhutilTestCase',
     'PhutilPHPFragmentLexerTestCase' => 'PhutilTestCase',
     'PhutilPHPObjectProtocolChannel' => 'PhutilProtocolChannel',
     'PhutilPHPObjectProtocolChannelTestCase' => 'PhutilTestCase',
     'PhutilParserGenerator' => 'Phobject',
     'PhutilParserGeneratorException' => 'Exception',
     'PhutilParserGeneratorTestCase' => 'PhutilTestCase',
     'PhutilPayPalAPIFuture' => 'FutureProxy',
     'PhutilPersonTest' => array(
       'Phobject',
       'PhutilPerson',
     ),
     'PhutilPersonaAuthAdapter' => 'PhutilAuthAdapter',
     'PhutilPhabricatorAuthAdapter' => 'PhutilOAuthAuthAdapter',
     'PhutilPhtTestCase' => 'PhutilTestCase',
     'PhutilPirateEnglishLocale' => 'PhutilLocale',
     'PhutilPortugueseBrazilLocale' => 'PhutilLocale',
     'PhutilPortuguesePortugalLocale' => 'PhutilLocale',
     'PhutilPregsprintfTestCase' => 'PhutilTestCase',
     'PhutilProcessGroupDaemon' => 'PhutilTortureTestDaemon',
     'PhutilProseDiff' => 'Phobject',
     'PhutilProseDiffTestCase' => 'PhutilTestCase',
     'PhutilProseDifferenceEngine' => 'Phobject',
     'PhutilProtocolChannel' => 'PhutilChannelChannel',
     'PhutilProxyException' => 'Exception',
     'PhutilProxyIterator' => array(
       'Phobject',
       'Iterator',
     ),
     'PhutilPygmentizeParser' => 'Phobject',
     'PhutilPygmentizeParserTestCase' => 'PhutilTestCase',
     'PhutilPygmentsSyntaxHighlighter' => 'Phobject',
     'PhutilPythonFragmentLexer' => 'PhutilLexer',
     'PhutilQueryStringParser' => 'Phobject',
     'PhutilQueryStringParserTestCase' => 'PhutilTestCase',
     'PhutilRainbowSyntaxHighlighter' => 'Phobject',
     'PhutilRawEnglishLocale' => 'PhutilLocale',
     'PhutilReadableSerializer' => 'Phobject',
     'PhutilReadableSerializerTestCase' => 'PhutilTestCase',
     'PhutilRealNameContextFreeGrammar' => 'PhutilContextFreeGrammar',
     'PhutilRemarkupBlockInterpreter' => 'Phobject',
     'PhutilRemarkupBlockRule' => 'Phobject',
     'PhutilRemarkupBlockStorage' => 'Phobject',
     'PhutilRemarkupBoldRule' => 'PhutilRemarkupRule',
     'PhutilRemarkupCodeBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupDefaultBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupDelRule' => 'PhutilRemarkupRule',
     'PhutilRemarkupDocumentLinkRule' => 'PhutilRemarkupRule',
     'PhutilRemarkupEngine' => 'PhutilMarkupEngine',
     'PhutilRemarkupEngineTestCase' => 'PhutilTestCase',
     'PhutilRemarkupEscapeRemarkupRule' => 'PhutilRemarkupRule',
     'PhutilRemarkupHeaderBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupHighlightRule' => 'PhutilRemarkupRule',
     'PhutilRemarkupHorizontalRuleBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupHyperlinkRule' => 'PhutilRemarkupRule',
     'PhutilRemarkupInlineBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupInterpreterBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupItalicRule' => 'PhutilRemarkupRule',
     'PhutilRemarkupLinebreaksRule' => 'PhutilRemarkupRule',
     'PhutilRemarkupListBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupLiteralBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupMonospaceRule' => 'PhutilRemarkupRule',
     'PhutilRemarkupNoteBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupQuotesBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupReplyBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupRule' => 'Phobject',
     'PhutilRemarkupSimpleTableBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupTableBlockRule' => 'PhutilRemarkupBlockRule',
     'PhutilRemarkupTestInterpreterRule' => 'PhutilRemarkupBlockInterpreter',
     'PhutilRemarkupUnderlineRule' => 'PhutilRemarkupRule',
     'PhutilRope' => 'Phobject',
     'PhutilRopeTestCase' => 'PhutilTestCase',
     'PhutilSafeHTML' => 'Phobject',
     'PhutilSafeHTMLTestCase' => 'PhutilTestCase',
     'PhutilSaturateStdoutDaemon' => 'PhutilTortureTestDaemon',
     'PhutilSearchQueryCompiler' => 'Phobject',
     'PhutilSearchQueryCompilerSyntaxException' => 'Exception',
     'PhutilSearchQueryCompilerTestCase' => 'PhutilTestCase',
+    'PhutilSearchStemmer' => 'Phobject',
+    'PhutilSearchStemmerTestCase' => 'PhutilTestCase',
     'PhutilServiceProfiler' => 'Phobject',
     'PhutilShellLexer' => 'PhutilLexer',
     'PhutilShellLexerTestCase' => 'PhutilTestCase',
     'PhutilSignalHandler' => 'Phobject',
     'PhutilSignalRouter' => 'Phobject',
     'PhutilSimpleOptions' => 'Phobject',
     'PhutilSimpleOptionsLexer' => 'PhutilLexer',
     'PhutilSimpleOptionsLexerTestCase' => 'PhutilTestCase',
     'PhutilSimpleOptionsTestCase' => 'PhutilTestCase',
     'PhutilSimplifiedChineseLocale' => 'PhutilLocale',
     'PhutilSlackAuthAdapter' => 'PhutilOAuthAuthAdapter',
     'PhutilSlackFuture' => 'FutureProxy',
     'PhutilSocketChannel' => 'PhutilChannel',
     'PhutilSortVector' => 'Phobject',
     'PhutilSpanishSpainLocale' => 'PhutilLocale',
     'PhutilSprite' => 'Phobject',
     'PhutilSpriteSheet' => 'Phobject',
     'PhutilStreamIterator' => array(
       'Phobject',
       'Iterator',
     ),
     'PhutilSyntaxHighlighter' => 'Phobject',
     'PhutilSyntaxHighlighterEngine' => 'Phobject',
     'PhutilSyntaxHighlighterException' => 'Exception',
     'PhutilSystem' => 'Phobject',
     'PhutilSystemTestCase' => 'PhutilTestCase',
     'PhutilTerminalString' => 'Phobject',
     'PhutilTestPhobject' => 'Phobject',
     'PhutilTortureTestDaemon' => 'PhutilDaemon',
     'PhutilTraditionalChineseLocale' => 'PhutilLocale',
     'PhutilTranslation' => 'Phobject',
     'PhutilTranslationTestCase' => 'PhutilTestCase',
     'PhutilTranslator' => 'Phobject',
     'PhutilTranslatorTestCase' => 'PhutilTestCase',
     'PhutilTsprintfTestCase' => 'PhutilTestCase',
     'PhutilTwitchAuthAdapter' => 'PhutilOAuthAuthAdapter',
     'PhutilTwitchFuture' => 'FutureProxy',
     'PhutilTwitterAuthAdapter' => 'PhutilOAuth1AuthAdapter',
     'PhutilTypeCheckException' => 'Exception',
     'PhutilTypeExtraParametersException' => 'Exception',
     'PhutilTypeLexer' => 'PhutilLexer',
     'PhutilTypeMissingParametersException' => 'Exception',
     'PhutilTypeSpec' => 'Phobject',
     'PhutilTypeSpecTestCase' => 'PhutilTestCase',
     'PhutilURI' => 'Phobject',
     'PhutilURITestCase' => 'PhutilTestCase',
     'PhutilUSEnglishLocale' => 'PhutilLocale',
     'PhutilUTF8StringTruncator' => 'Phobject',
     'PhutilUTF8TestCase' => 'PhutilTestCase',
     'PhutilUnknownSymbolParserGeneratorException' => 'PhutilParserGeneratorException',
     'PhutilUnreachableRuleParserGeneratorException' => 'PhutilParserGeneratorException',
     'PhutilUnreachableTerminalParserGeneratorException' => 'PhutilParserGeneratorException',
     'PhutilUrisprintfTestCase' => 'PhutilTestCase',
     'PhutilUtilsTestCase' => 'PhutilTestCase',
     'PhutilVeryWowEnglishLocale' => 'PhutilLocale',
     'PhutilWordPressAuthAdapter' => 'PhutilOAuthAuthAdapter',
     'PhutilWordPressFuture' => 'FutureProxy',
     'PhutilXHPASTBinary' => 'Phobject',
     'PhutilXHPASTSyntaxHighlighter' => 'Phobject',
     'PhutilXHPASTSyntaxHighlighterFuture' => 'FutureProxy',
     'PhutilXHPASTSyntaxHighlighterTestCase' => 'PhutilTestCase',
     'QueryFuture' => 'Future',
     'TempFile' => 'Phobject',
     'TestAbstractDirectedGraph' => 'AbstractDirectedGraph',
     'XHPASTNode' => 'AASTNode',
     'XHPASTNodeTestCase' => 'PhutilTestCase',
     'XHPASTSyntaxErrorException' => 'Exception',
     'XHPASTToken' => 'AASTToken',
     'XHPASTTree' => 'AASTTree',
     'XHPASTTreeTestCase' => 'PhutilTestCase',
     'XsprintfUnknownConversionException' => 'InvalidArgumentException',
   ),
 ));
diff --git a/src/search/PhutilSearchQueryCompiler.php b/src/search/PhutilSearchQueryCompiler.php
index 8393ecf..3c17460 100644
--- a/src/search/PhutilSearchQueryCompiler.php
+++ b/src/search/PhutilSearchQueryCompiler.php
@@ -1,231 +1,287 @@
 <?php
 
 final class PhutilSearchQueryCompiler
   extends Phobject {
 
   private $operators = '+ -><()~*:""&|';
   private $query;
+  private $stemmer;
 
   const OPERATOR_NOT = 'not';
   const OPERATOR_AND = 'and';
 
   public function setOperators($operators) {
     $this->operators = $operators;
     return $this;
   }
 
   public function getOperators() {
     return $this->operators;
   }
 
   public function setQuery($query) {
     $this->query = $query;
     return $this;
   }
 
   public function getQuery() {
     return $this->query;
   }
 
+  public function setStemmer(PhutilSearchStemmer $stemmer) {
+    $this->stemmer = $stemmer;
+    return $this;
+  }
+
+  public function getStemmer() {
+    return $this->stemmer;
+  }
+
   public function compileQuery() {
     $query = $this->getQuery();
     $tokens = $this->tokenizeQuery($query);
 
     $result = array();
     foreach ($tokens as $token) {
       $result[] = $this->renderToken($token);
     }
 
-    $result = array_unique($result);
-    return implode(' ', $result);
+    return $this->compileRenderedTokens($result);
+  }
+
+  public function compileLiteralQuery() {
+    $query = $this->getQuery();
+    $tokens = $this->tokenizeQuery($query);
+
+    $result = array();
+    foreach ($tokens as $token) {
+      if (!$token['quoted']) {
+        continue;
+      }
+      $result[] = $this->renderToken($token);
+    }
+
+    return $this->compileRenderedTokens($result);
+  }
+
+  public function compileStemmedQuery() {
+    $query = $this->getQuery();
+    $tokens = $this->tokenizeQuery($query);
+
+    $result = array();
+    foreach ($tokens as $token) {
+      if ($token['quoted']) {
+        continue;
+      }
+      $result[] = $this->renderToken($token, $this->getStemmer());
+    }
+
+    return $this->compileRenderedTokens($result);
+  }
+
+  private function compileRenderedTokens(array $list) {
+    if (!$list) {
+      return null;
+    }
+
+    $list = array_unique($list);
+    return implode(' ', $list);
   }
 
   private function tokenizeQuery($query) {
     $maximum_bytes = 1024;
 
     $query_bytes = strlen($query);
     if ($query_bytes > $maximum_bytes) {
       throw new PhutilSearchQueryCompilerSyntaxException(
         pht(
           'Query is too long (%s bytes, maximum is %s bytes).',
           new PhutilNumber($query_bytes),
           new PhutilNumber($maximum_bytes)));
     }
 
     $query = phutil_utf8v($query);
     $length = count($query);
 
     $mode = 'scan';
     $current_operator = array();
     $current_token = array();
     $is_quoted = false;
     $tokens = array();
     for ($ii = 0; $ii < $length; $ii++) {
       $character = $query[$ii];
 
       if ($mode == 'scan') {
         if (preg_match('/^\s\z/u', $character)) {
           continue;
         }
 
         $mode = 'operator';
       }
 
       if ($mode == 'operator') {
         if (preg_match('/^\s\z/u', $character)) {
           continue;
         }
 
         if (preg_match('/^[+-]\z/', $character)) {
           $current_operator[] = $character;
           continue;
         }
 
         $mode = 'quote';
       }
 
       if ($mode == 'quote') {
         if (preg_match('/^"\z/', $character)) {
           $is_quoted = true;
           $mode = 'token';
           continue;
         }
 
         $mode = 'token';
       }
 
       if ($mode == 'token') {
         $capture = false;
         $was_quoted = $is_quoted;
         if ($is_quoted) {
           if (preg_match('/^"\z/', $character)) {
             $capture = true;
             $mode = 'scan';
             $is_quoted = false;
           }
         } else {
           if (preg_match('/^\s\z/u', $character)) {
             $capture = true;
             $mode = 'scan';
           }
 
           if (preg_match('/^"\z/', $character)) {
             $capture = true;
             $mode = 'token';
             $is_quoted = true;
           }
         }
 
         if ($capture) {
           $tokens[] = array(
             'operator' => $current_operator,
             'quoted' => $was_quoted,
             'value' => $current_token,
           );
           $current_operator = array();
           $current_token = array();
           continue;
         } else {
           $current_token[] = $character;
         }
       }
     }
 
     if ($is_quoted) {
       throw new PhutilSearchQueryCompilerSyntaxException(
         pht(
           'Query contains unmatched double quotes.'));
     }
 
     if ($mode == 'operator') {
       throw new PhutilSearchQueryCompilerSyntaxException(
         pht(
           'Query contains operator ("%s") with no search term.',
           implode('', $current_operator)));
     }
 
     $tokens[] = array(
       'operator' => $current_operator,
       'quoted' => false,
       'value' => $current_token,
     );
 
     $results = array();
     foreach ($tokens as $token) {
       $value = implode('', $token['value']);
       $operator_string = implode('', $token['operator']);
 
       if (!strlen($value)) {
         continue;
       }
 
       switch ($operator_string) {
         case '-':
           $operator = self::OPERATOR_NOT;
           break;
         case '':
         case '+':
           $operator = self::OPERATOR_AND;
           break;
         default:
           throw new PhutilSearchQueryCompilerSyntaxException(
             pht(
               'Query has an invalid sequence of operators ("%s").',
               $operator_string));
       }
 
       $results[] = array(
         'operator' => $operator,
         'quoted' => $token['quoted'],
         'value' => $value,
       );
     }
 
     return $results;
   }
 
-  private function renderToken(array $token) {
-    $value = $this->quoteToken($token['value']);
+  private function renderToken(
+    array $token,
+    PhutilSearchStemmer $stemmer = null) {
+    $value = $token['value'];
+
+    if ($stemmer) {
+      $value = $stemmer->stemToken($value);
+    }
+
+    $value = $this->quoteToken($value);
     $operator = $token['operator'];
     $prefix = $this->getOperatorPrefix($operator);
 
     $value = $prefix.$value;
 
     return $value;
   }
 
   private function getOperatorPrefix($operator) {
     $operators = $this->operators;
 
     switch ($operator) {
       case self::OPERATOR_AND:
         $prefix = $operators[0];
         break;
       case self::OPERATOR_NOT:
         $prefix = $operators[2];
         break;
       default:
         throw new PhutilSearchQueryCompilerSyntaxException(
           pht(
             'Unsupported operator prefix "%s".',
             $operator));
     }
 
     if ($prefix == ' ') {
       $prefix = null;
     }
 
     return $prefix;
   }
 
   private function quoteToken($value) {
     $operators = $this->operators;
 
     $open_quote = $this->operators[10];
     $close_quote = $this->operators[11];
 
     return $open_quote.$value.$close_quote;
   }
 
 
 }
diff --git a/src/search/PhutilSearchStemmer.php b/src/search/PhutilSearchStemmer.php
new file mode 100644
index 0000000..2991a6f
--- /dev/null
+++ b/src/search/PhutilSearchStemmer.php
@@ -0,0 +1,51 @@
+<?php
+
+final class PhutilSearchStemmer
+  extends Phobject {
+
+  public function stemToken($token) {
+    $token = $this->normalizeToken($token);
+    return $this->applyStemmer($token);
+  }
+
+  public function stemCorpus($corpus) {
+    $tokens = preg_split('/[^a-zA-Z0-9\x7F-\xFF]+/', $corpus);
+
+    $words = array();
+    foreach ($tokens as $key => $token) {
+      if (strlen($token) < 3) {
+        continue;
+      }
+
+      $normal_word = $this->normalizeToken($token);
+      $words[$normal_word] = $normal_word;
+    }
+
+    $stems = array();
+    foreach ($words as $normal_word) {
+      $stems[] = $this->applyStemmer($normal_word);
+    }
+
+    return implode(' ', $stems);
+  }
+
+  private function normalizeToken($token) {
+    return phutil_utf8_strtolower($token);
+  }
+
+  /**
+   * @phutil-external-symbol class Porter
+   */
+  private function applyStemmer($normalized_token) {
+    static $loaded;
+
+    if ($loaded === null) {
+      $root = dirname(phutil_get_library_root('phutil'));
+      require_once $root.'/externals/porter-stemmer/src/Porter.php';
+      $loaded = true;
+    }
+
+    return Porter::stem($normalized_token);
+  }
+
+}
diff --git a/src/search/__tests__/PhutilSearchQueryCompilerTestCase.php b/src/search/__tests__/PhutilSearchQueryCompilerTestCase.php
index b80de18..dda67e2 100644
--- a/src/search/__tests__/PhutilSearchQueryCompilerTestCase.php
+++ b/src/search/__tests__/PhutilSearchQueryCompilerTestCase.php
@@ -1,91 +1,145 @@
 <?php
 
 final class PhutilSearchQueryCompilerTestCase
   extends PhutilTestCase {
 
-
   public function testCompileQueries() {
     $tests = array(
-      '' => '',
+      '' => null,
       'cat dog' => '+"cat" +"dog"',
       'cat -dog' => '+"cat" -"dog"',
       'cat-dog' => '+"cat-dog"',
 
       // If there are spaces after an operator, the operator applies to the
       // next search term.
       'cat - dog' => '+"cat" -"dog"',
 
       // Double quotes serve as delimiters even if there is no whitespace
       // between terms.
       '"cat"dog' => '+"cat" +"dog"',
 
       // This query is too long.
       str_repeat('x', 2048) => false,
 
       // Multiple operators are not permitted.
       '++cat' => false,
       '+-cat' => false,
       '--cat' => false,
 
       // Stray operators are not permitted.
       '+' => false,
       'cat +' => false,
 
       // Double quotes must be paired.
       '"' => false,
       'cat "' => false,
       '"cat' => false,
       'A"' => false,
       'A"B"' => '+"A" +"B"',
     );
 
     $this->assertCompileQueries($tests);
 
     // Test that we compile queries correctly if the operators have been
     // swapped to use "AND" by default.
     $operator_tests = array(
       'cat dog' => '"cat" "dog"',
       'cat -dog' => '"cat" -"dog"',
     );
     $this->assertCompileQueries($operator_tests, ' |-><()~*:""&\'');
 
 
     // Test that we compile queries correctly if the quote operators have
     // been swapped to differ.
     $quote_tests = array(
       'cat dog' => '+[cat] +[dog]',
       'cat -dog' => '+[cat] -[dog]',
     );
     $this->assertCompileQueries($quote_tests, '+ -><()~*:[]&|');
 
   }
 
-  private function assertCompileQueries(array $tests, $operators = null) {
+  public function testCompileQueriesWithStemming() {
+    $stemming_tests = array(
+      'cat dog' => array(
+        null,
+        '+"cat" +"dog"',
+      ),
+      'cats dogs' => array(
+        null,
+        '+"cat" +"dog"',
+      ),
+      'cats "dogs"' => array(
+        '+"dogs"',
+        '+"cat"',
+      ),
+      '"blessed blade" of the windseeker' => array(
+        '+"blessed blade"',
+        '+"of" +"the" +"windseek"',
+      ),
+      'mailing users for mentions on tasks' => array(
+        null,
+        '+"mail" +"user" +"for" +"mention" +"on" +"task"',
+      ),
+    );
+
+    $stemmer = new PhutilSearchStemmer();
+    $this->assertCompileQueries($stemming_tests, null, $stemmer);
+  }
+
+  private function assertCompileQueries(
+    array $tests,
+    $operators = null,
+    PhutilSearchStemmer $stemmer = null) {
     foreach ($tests as $input => $expect) {
       $caught = null;
 
+      $query = null;
+      $literal_query = null;
+      $stemmed_query = null;
+
       try {
         $compiler = id(new PhutilSearchQueryCompiler())
           ->setQuery($input);
 
         if ($operators !== null) {
           $compiler->setOperators($operators);
         }
 
-        $query = $compiler->compileQuery();
+        if ($stemmer !== null) {
+          $compiler->setStemmer($stemmer);
+        }
+
+        if ($stemmer) {
+          $literal_query = $compiler->compileLiteralQuery();
+          $stemmed_query = $compiler->compileStemmedQuery();
+        } else {
+          $query = $compiler->compileQuery();
+        }
       } catch (PhutilSearchQueryCompilerSyntaxException $ex) {
         $caught = $ex;
       }
 
       if ($caught !== null) {
         $query = false;
+        $literal_query = false;
+        $stemmed_query = false;
       }
 
-      $this->assertEqual(
-        $expect,
-        $query,
-        pht('Compilation of query: %s', $input));
+      if (!$stemmer) {
+        $this->assertEqual(
+          $expect,
+          $query,
+          pht('Compilation of query: %s', $input));
+      } else {
+        $this->assertEqual(
+          $expect,
+          ($literal_query === false)
+            ? false
+            : array($literal_query, $stemmed_query),
+          pht('Stemmed compilation of query: %s', $input));
+      }
     }
   }
 
 }
diff --git a/src/search/__tests__/PhutilSearchStemmerTestCase.php b/src/search/__tests__/PhutilSearchStemmerTestCase.php
new file mode 100644
index 0000000..34a9631
--- /dev/null
+++ b/src/search/__tests__/PhutilSearchStemmerTestCase.php
@@ -0,0 +1,68 @@
+<?php
+
+final class PhutilSearchStemmerTestCase
+  extends PhutilTestCase {
+
+  public function testStemTokens() {
+    $tests = array(
+      // Various real-world cases collected from users before we implemented
+      // stemming.
+      'tokens' => 'token',
+      'panels' => 'panel',
+
+      'renames' => 'renam',
+      'rename' => 'renam',
+
+      'components' => 'compon',
+      'component' => 'compon',
+
+      'implementation' => 'implement',
+      'implements' => 'implement',
+      'implementing' => 'implement',
+      'implementer' => 'implement',
+
+      'deleting' => 'delet',
+      'deletion' => 'delet',
+      'delete' => 'delet',
+
+      'erratically' => 'errat',
+      'erratic' => 'errat',
+
+      // Stems should be normalized.
+      'DOG' => 'dog',
+    );
+
+    $stemmer = new PhutilSearchStemmer();
+    foreach ($tests as $input => $expect) {
+      $stem = $stemmer->stemToken($input);
+      $this->assertEqual(
+        $expect,
+        $stem,
+        pht('Token stem of "%s".', $input));
+    }
+  }
+
+  public function testStemDocuments() {
+    $tests = array(
+      'The wild boar meandered erratically.' =>
+        'the wild boar meander errat',
+      'Fool me onc, shame on you. Fool me twice, shame on me.' =>
+        'fool onc shame you twice',
+      'Fireball is a seventh-level spell which deals 2d16 points of damage '.
+      'in a 1-meter radius around a target.' =>
+        'firebal seventh level spell which deal 2d16 point damag meter '.
+        'radiu around target',
+    );
+
+    $stemmer = new PhutilSearchStemmer();
+    foreach ($tests as $input => $expect) {
+      $stem = $stemmer->stemCorpus($input);
+      $this->assertEqual(
+        $expect,
+        $stem,
+        pht('Corpus stem of: %s', $input));
+    }
+  }
+
+
+}