Add native property types in Exceptions

Signed-off-by: Kamil Tekiela <tekiela246@gmail.com>

Author: kamil-tekiela

src/Exceptions/LexerException.php

@@ -13,17 +13,13 @@ class LexerException extends Exception
 {
     /**
      * The character that produced this error.
-     *
-     * @var string
      */
-    public $ch;
+    public string $ch;
 
     /**
      * The index of the character that produced this error.
-     *
-     * @var int
      */
-    public $pos;
+    public int $pos;
 
     /**
      * @param string $msg  the message of this exception

src/Exceptions/ParserException.php

@@ -14,15 +14,13 @@ class ParserException extends Exception
 {
     /**
      * The token that produced this error.
-     *
-     * @var Token
      */
-    public $token;
+    public Token|null $token;
 
     /**
-     * @param string $msg   the message of this exception
-     * @param Token  $token the token that produced this exception
-     * @param int    $code  the code of this error
+     * @param string     $msg   the message of this exception
+     * @param Token|null $token the token that produced this exception
+     * @param int        $code  the code of this error
      */
     public function __construct(string $msg = '', Token|null $token = null, int $code = 0)
     {