add qualification to function definitions

lib/ast/function_expression.rb

@@ -1,16 +1,19 @@
 module Ast
   class FunctionExpression < Expression
-    attr_reader  :name, :params, :body
-    def initialize name, params, body
-      @name, @params, @body = name.to_sym, params, body
+    attr_reader  :name, :params, :body , :receiver
+    def initialize name, params, body , receiver = nil
+      @name = name.to_sym
+      @params =  params
+      @body = body
+      @receiver = receiver
     end
     def attributes
-      [:name, :params, :body]
+      [:name, :params, :body , :receiver]
     end
     def inspect
       self.class.name + ".new(" + name.inspect + ", ["+ 
         params.collect{|m| m.inspect }.join( ",") +"] , [" + 
-        body.collect{|m| m.inspect }.join( ",") +"] )"  
+        body.collect{|m| m.inspect }.join( ",") +"] ,"+  receiver.inspect + " )"
     end
     
     def to_s