move method_source functionality into compiler

the source was there long before the compiler (sis language) came along
and was basically doing the same
Much clearer concept with using compiler to generate methods and code
Also move compile method to method

lib/register.rb

@@ -6,7 +6,6 @@ require "register/padding"
 require "register/parfait_adapter"
 
 require "soml/compiler"
-require "register/method_source"
 
 
 class Fixnum