Rakefile in debug_helper-1.7.0

- old
+ new

@@ -17,9 +17,11 @@
         Array
         Hash
         Struct
         String
         Symbol
+        File
+        Set
         Object
       /
       class_dir_names = class_names.collect {|x| x.downcase}
       class_dir_names.each do |class_dir_name|
         Dir.chdir(class_dir_name) do
\ No newline at end of file