Handle disabled tags errors like other liquid errors (#1275)

lib/liquid/errors.rb

@@ -53,5 +53,6 @@ module Liquid
   UndefinedDropMethod = Class.new(Error)
   UndefinedFilter     = Class.new(Error)
   MethodOverrideError = Class.new(Error)
+  DisabledError       = Class.new(Error)
   InternalError       = Class.new(Error)
 end

lib/liquid/tag/disableable.rb

@@ -5,14 +5,17 @@ module Liquid
     module Disableable
       def render_to_output_buffer(context, output)
         if context.tag_disabled?(tag_name)
-          output << disabled_error_message
+          output << disabled_error(context)
           return
         end
         super
       end
 
-      def disabled_error_message
-        "#{tag_name} #{parse_context[:locale].t('errors.disabled.tag')}"
+      def disabled_error(context)
+        # raise then rescue the exception so that the Context#exception_renderer can re-raise it
+        raise DisabledError, "#{tag_name} #{parse_context[:locale].t('errors.disabled.tag')}"
+      rescue DisabledError => exc
+        context.handle_error(exc, line_number)
       end
     end
   end