remove the parse code and fix the rest to work with the gem (from git for now)

lib/ast/if_expression.rb

@@ -1,16 +1,6 @@
 module Ast
   class IfExpression < Expression
-    attr_reader  :cond, :if_true, :if_false
-    def initialize cond, if_true, if_false
-      @cond, @if_true, @if_false = cond, if_true, if_false
-    end
-    def inspect
-      self.class.name + ".new(" + cond.inspect + ", "+ 
-        if_true.inspect +  ","  + if_false.inspect + " )"  
-    end
-    def attributes
-      [:cond, :if_true, :if_false]
-    end
+#    attr_reader  :cond, :if_true, :if_false
     def compile context , into
       # to execute the logic as the if states it, the blocks are the other way around
       # so we can the jump over the else if true ,and the else joins unconditionally after the true_block