Fix parsing of latest version of classic Google search (#111)

* Fix parsing of latest version of classic Google search

Closes #105
Closes #110

* Typo fix

* Code cleanup

src/Parser/Evaluated/Rule/Natural/Classical/ClassicalResult.php

@@ -32,23 +32,35 @@ protected function parseNode(GoogleDom $dom, \DomElement $node)
 
         // find the title/url
         /* @var $aTag \DOMElement */
-        $aTag=$dom
-            ->xpathQuery("descendant::h3[@class='r'][1]/a", $node)
+        $aTag = $dom
+            ->xpathQuery("descendant::*[(self::div or self::h3) and @class='r'][1]/a", $node)
             ->item(0);
         if (!$aTag) {
             throw new InvalidDOMException('Cannot parse a classical result.');
         }
 
+        /* @var $h3Tag \DOMElement */
+        $h3Tag = $dom
+            ->xpathQuery('descendant::h3', $node)
+            ->item(0);
+        if (!$h3Tag) {
+            throw new InvalidDOMException('Cannot parse a classical result.');
+        }
+
         $destinationTag = $dom
-            ->cssQuery('div.f cite', $node)
+            ->cssQuery('div.f cite, div.TbwUpd cite', $node)
             ->getNodeAt(0);
 
+        if (is_a($destinationTag, Serps\Core\Dom\NullDomNode::class)) {
+            throw new InvalidDOMException('Cannot parse a classical result.');
+        }
+
         $descriptionTag = $dom
             ->xpathQuery("descendant::span[@class='st']", $node)
             ->item(0);
 
         return [
-            'title'   => $aTag->nodeValue,
+            'title'   => $h3Tag->nodeValue,
             'url'     => $dom->getUrl()->resolveAsString($aTag->getAttribute('href')),
             'destination' => $destinationTag->getNodeValue(),
             // trim needed for mobile results coming with an initial space