provide expression parse cache when liquid-c is disabled

lib/liquid/c.rb

@@ -88,7 +88,7 @@ def new_tokenizer(source, start_line_number: nil, for_liquid_tag: false)
 
   def parse_expression(markup)
     if liquid_c_nodes_disabled?
-      Liquid::Expression.parse(markup)
+      Liquid::Expression.parse(markup, string_scanner, expression_cache)
     else
       Liquid::C::Expression.lax_parse(markup)
     end