using new macro approach for builtin, testing first

lib/vool/builtin.rb

@@ -0,0 +1,13 @@
+module Vool
+  module Builtin
+    def self.boot_methods(options)
+      return if options[:boot_methods] == false
+      load_builtin( :int_plus )
+    end
+
+    def self.load_builtin(name)
+      fname = "./builtin/#{name}.rb"
+      File.read File.expand_path(fname, File.dirname(__FILE__))
+    end
+  end
+end

lib/vool/builtin/int_plus.rb

@@ -0,0 +1,5 @@
+class Integer < DataObject4
+  def +(other)
+    return X.int_operator( :+ )
+  end
+end