add name attribute to Template for more flexibility to set context's template name

lib/liquid/partial_cache.rb

@@ -16,6 +16,13 @@ module Liquid
       template = template_factory.for(template_name)
 
       partial = template.parse(source, parse_context)
+
+      partial.name ||= if context.registers[:file_system]&.respond_to?(:actual_template_name)
+        context.registers[:file_system].actual_template_name(template_name)
+      else
+        template_name
+      end
+
       cached_partials[template_name] = partial
     ensure
       parse_context.partial = false