remove instance_names from class again

and use types names instead. For now assuming Object class

lib/melon/compiler.rb

@@ -18,7 +18,8 @@ module Melon
     def on_class statement
       name , sup , body = *statement
       clazz = Parfait::Space.object_space.create_class(get_name(name) , get_name(sup) )
-      clazz.set_instance_names( TypeCollector.new.collect(body) )
+      ivar_hash = TypeCollector.new.collect(body)
+      clazz.set_instance_type( Parfait::Type.for_hash( clazz ,  ivar_hash ) ) 
     end
   end
 end

lib/melon/type_collector.rb

@@ -3,16 +3,17 @@ module Melon
   class TypeCollector < AST::Processor
 
     def initialize
-      @ivar_names = []
+      @ivars = {}
     end
 
     def collect(statement)
       process statement
-      @ivar_names
+      @ivars
     end
 
     def on_ivar(statement)
-      @ivar_names.push statement.children[0].to_s[1..-1].to_sym
+      var = statement.children[0].to_s[1..-1].to_sym
+      @ivars[var] = :Object #guess, can maybe guess better
     end
 
     def handler_missing(node)