parsertests: replaced var keywords and added type hints

_test/tests/inc/parser/parser.inc.php

@@ -5,14 +5,16 @@ require_once DOKU_INC . 'inc/parser/handler.php';
 
 abstract class TestOfDoku_Parser extends DokuWikiTest {
 
-    var $P;
-    var $H;
+    /** @var  Doku_Parser */
+    protected $P;
+    /** @var  Doku_Handler */
+    protected $H;
 
     function setUp() {
         parent::setUp();
         $this->P = new Doku_Parser();
         $this->H = new Doku_Handler();
-        $this->P->Handler = & $this->H;
+        $this->P->Handler = $this->H;
     }
 
     function tearDown() {