LibGUI: Insert parsed comments in parsing order

We were accidentally reversing the order of consecutive comments when
inserting them as children of the GML object.

Userland/Libraries/LibGUI/GML/Parser.cpp

@@ -57,14 +57,14 @@ static ErrorOr<NonnullRefPtr<Object>> parse_gml_object(Queue<Token>& tokens)
             // It's a child object.
 
             while (!pending_comments.is_empty())
-                TRY(object->add_sub_object_child(pending_comments.take_last()));
+                TRY(object->add_sub_object_child(pending_comments.take_first()));
 
             TRY(object->add_sub_object_child(TRY(parse_gml_object(tokens))));
         } else if (peek() == Token::Type::Identifier) {
             // It's a property.
 
             while (!pending_comments.is_empty())
-                TRY(object->add_property_child(pending_comments.take_last()));
+                TRY(object->add_property_child(pending_comments.take_first()));
 
             auto property_name = tokens.dequeue();