start a new ruby layer to do the to_vool conversion

the "normalization" is getting more and more complicated and is not tested
And it seems i really don't like working with the untyped ast

lib/ruby/normalizer.rb

@@ -0,0 +1,22 @@
+module Ruby
+  module Normalizer
+    # given a something, determine if it is a Name
+    #
+    # Return a Name, and a possible rest that has a hoisted part of the statement
+    #
+    # eg  if( @var % 5) is not normalized
+    # but if(tmp_123) is with tmp_123 = @var % 5 hoisted above the if
+    #
+    # also constants count, though they may not be so useful in ifs, but returns
+    def normalize_name( condition )
+      if( condition.is_a?(ScopeStatement) and condition.single?)
+        condition = condition.first
+      end
+      return [condition] if condition.is_a?(Named) or condition.is_a?(Constant)
+      condition = condition.normalize
+      local = "tmp_#{object_id}".to_sym
+      assign = Statements.new [LocalAssignment.new( local , condition)]
+      [LocalVariable.new(local) , assign]
+    end
+  end
+end