moved all the normalize stuff over to the ruby layer

Which is how it should have been from the start

lib/rubyx.rb

@@ -1,12 +1,3 @@
-require "parser/ruby22"
-require "ast"
-
-AST::Node.class_eval do
-  def first
-    children.first
-  end
-end
-
 require "rx-file"
 
 require "util/logging"
@@ -15,5 +6,6 @@ require_relative "risc"
 require_relative "arm/arm_machine"
 require_relative "arm/arm_platform"
 require_relative "vool/statement"
+require_relative "ruby"
 require_relative "rubyx/rubyx_compiler"
 require_relative "mom/mom"