remove next_list from NamedList

Was legacy from the days of (linked) Frames
Now only messages are linked

lib/register/boot.rb

@@ -124,7 +124,7 @@ module Register
           :Kernel => {}, #fix, kernel is a class, but should be a module
           :BinaryCode => {:char_length => :Integer} ,
           :Space => {:classes => :Dictionary , :types => :Dictionary , :first_message => :Message},
-          :NamedList => {:next_list => :NamedList},
+          :NamedList => {},
           :Type => {:object_class => :Class, :instance_methods => :List , :indexed_length => :Integer} ,
           :Class => {:instance_methods => :List, :instance_type => :Type, :name => :Word,
                       :super_class_name => :Word , :instance_names => :List },

lib/typed/parfait/named_list.rb

@@ -1,5 +1,5 @@
 
-# A NamedList is for local variables arguments when calling methods.
+# A NamedList is used to store local variables and arguments when calling methods.
 # Also temporary variables, which are local variables named by the system
 
 # The items are named (and typed) by the objects type instance. In effect the
@@ -9,9 +9,10 @@
 # A Message (see details there) is created by the caller and control is transferred
 # A NamedList is created by the receiver
 # PS: it turns out that both messages and named_lists are created at compile, not run-time, and
-#  just constantly reused. Each message has a named_list object ready and is also linked
+#  just constantly reused. Each message has two named_list object ready and is also linked
 #  to the next message.
-# The better way to say above is that a message is *used* by the caller, and a named_list by the callee.
+# The better way to say above is that a message is *used* by the caller, and a named_list 
+#  by the callee.
 
 # Also at runtime Messages and NamedLists remain completely "normal" objects.
 # Ie they have have type and instances and so on.*
@@ -21,7 +22,6 @@
 #
 module Parfait
   class NamedList < Object
-    attribute :next_list
 
   end
 end

test/typed/parfait/test_named_list.rb

@@ -13,11 +13,6 @@ class TestNamedLists < MiniTest::Test
     assert @named_list.get_instance_variables
   end
 
-  def test_named_list_next_set
-    @named_list.next_list = :next_list
-    assert_equal :next_list , @named_list.next_list
-  end
-
   def test_new
     list = Parfait::NamedList.new
     assert list.get_type