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diff --git a/vendor/psy/psysh/src/Psy/TabCompletion/Matcher/AbstractMatcher.php b/vendor/psy/psysh/src/Psy/TabCompletion/Matcher/AbstractMatcher.php
deleted file mode 100644
index 016c32190..000000000
--- a/vendor/psy/psysh/src/Psy/TabCompletion/Matcher/AbstractMatcher.php
+++ /dev/null
@@ -1,186 +0,0 @@
-<?php
-
-/*
- * This file is part of Psy Shell.
- *
- * (c) 2012-2017 Justin Hileman
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Psy\TabCompletion\Matcher;
-
-/**
- * Abstract tab completion Matcher.
- *
- * @author Marc Garcia <markcial@gmail.com>
- */
-abstract class AbstractMatcher
-{
-    /** Syntax types */
-    const CONSTANT_SYNTAX = '^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$';
-    const VAR_SYNTAX = '^\$[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$';
-    const MISC_OPERATORS = '+-*/^|&';
-    /** Token values */
-    const T_OPEN_TAG = 'T_OPEN_TAG';
-    const T_VARIABLE = 'T_VARIABLE';
-    const T_OBJECT_OPERATOR = 'T_OBJECT_OPERATOR';
-    const T_DOUBLE_COLON = 'T_DOUBLE_COLON';
-    const T_NEW = 'T_NEW';
-    const T_CLONE = 'T_CLONE';
-    const T_NS_SEPARATOR = 'T_NS_SEPARATOR';
-    const T_STRING = 'T_STRING';
-    const T_WHITESPACE = 'T_WHITESPACE';
-    const T_AND_EQUAL = 'T_AND_EQUAL';
-    const T_BOOLEAN_AND = 'T_BOOLEAN_AND';
-    const T_BOOLEAN_OR = 'T_BOOLEAN_OR';
-
-    const T_ENCAPSED_AND_WHITESPACE = 'T_ENCAPSED_AND_WHITESPACE';
-    const T_REQUIRE = 'T_REQUIRE';
-    const T_REQUIRE_ONCE = 'T_REQUIRE_ONCE';
-    const T_INCLUDE = 'T_INCLUDE';
-    const T_INCLUDE_ONCE = 'T_INCLUDE_ONCE';
-
-    /**
-     * Check whether this matcher can provide completions for $tokens.
-     *
-     * @param array $tokens Tokenized readline input
-     *
-     * @return bool
-     */
-    public function hasMatched(array $tokens)
-    {
-        return false;
-    }
-
-    /**
-     * Get current readline input word.
-     *
-     * @param array $tokens Tokenized readline input (see token_get_all)
-     *
-     * @return string
-     */
-    protected function getInput(array $tokens)
-    {
-        $var = '';
-        $firstToken = array_pop($tokens);
-        if (self::tokenIs($firstToken, self::T_STRING)) {
-            $var = $firstToken[1];
-        }
-
-        return $var;
-    }
-
-    /**
-     * Get current namespace and class (if any) from readline input.
-     *
-     * @param array $tokens Tokenized readline input (see token_get_all)
-     *
-     * @return string
-     */
-    protected function getNamespaceAndClass($tokens)
-    {
-        $class = '';
-        while (self::hasToken(
-            array(self::T_NS_SEPARATOR, self::T_STRING),
-            $token = array_pop($tokens)
-        )) {
-            $class = $token[1] . $class;
-        }
-
-        return $class;
-    }
-
-    /**
-     * Provide tab completion matches for readline input.
-     *
-     * @param array $tokens information substracted with get_token_all
-     * @param array $info   readline_info object
-     *
-     * @return array The matches resulting from the query
-     */
-    abstract public function getMatches(array $tokens, array $info = array());
-
-    /**
-     * Check whether $word starts with $prefix.
-     *
-     * @param string $prefix
-     * @param string $word
-     *
-     * @return bool
-     */
-    public static function startsWith($prefix, $word)
-    {
-        return preg_match(sprintf('#^%s#', $prefix), $word);
-    }
-
-    /**
-     * Check whether $token matches a given syntax pattern.
-     *
-     * @param mixed  $token  A PHP token (see token_get_all)
-     * @param string $syntax A syntax pattern (default: variable pattern)
-     *
-     * @return bool
-     */
-    public static function hasSyntax($token, $syntax = self::VAR_SYNTAX)
-    {
-        if (!is_array($token)) {
-            return false;
-        }
-
-        $regexp = sprintf('#%s#', $syntax);
-
-        return (bool) preg_match($regexp, $token[1]);
-    }
-
-    /**
-     * Check whether $token type is $which.
-     *
-     * @param string $which A PHP token type
-     * @param mixed  $token A PHP token (see token_get_all)
-     *
-     * @return bool
-     */
-    public static function tokenIs($token, $which)
-    {
-        if (!is_array($token)) {
-            return false;
-        }
-
-        return token_name($token[0]) === $which;
-    }
-
-    /**
-     * Check whether $token is an operator.
-     *
-     * @param mixed $token A PHP token (see token_get_all)
-     *
-     * @return bool
-     */
-    public static function isOperator($token)
-    {
-        if (!is_string($token)) {
-            return false;
-        }
-
-        return strpos(self::MISC_OPERATORS, $token) !== false;
-    }
-
-    /**
-     * Check whether $token type is present in $coll.
-     *
-     * @param array $coll  A list of token types
-     * @param mixed $token A PHP token (see token_get_all)
-     *
-     * @return bool
-     */
-    public static function hasToken(array $coll, $token)
-    {
-        if (!is_array($token)) {
-            return false;
-        }
-
-        return in_array(token_name($token[0]), $coll);
-    }
-}