always slot definitions in slot loads

test/vool/to_mom/send/simple_send_harness.rb

@@ -14,7 +14,7 @@ module Vool
       assert_equal Mom::ArgumentTransfer,  @stats[1].class
     end
     def test_receiver_move
-      assert_equal :receiver,  @stats[1].receiver.left[2]
+      assert_equal :receiver,  @stats[1].receiver.left.slots[1]
     end
     def test_receiver
       type , value = receiver

test/vool/to_mom/send/test_send_cached_simple.rb

@@ -44,7 +44,8 @@ module Vool
     end
 
     def test_call_third
-      assert @fourth.method_var_name.start_with?("cached_") , @fourth.to_rxf
+      assert @fourth.cached_method.start_with?("cached_") , @fourth.to_rxf
+      assert @fourth.cached_type.start_with?("cached_") , @fourth.to_rxf
     end
 
     def est_receiver_move_class

test/vool/to_mom/send/test_send_simple_args.rb

@@ -15,8 +15,8 @@ module Vool
       [IntegerStatement , 5]
     end
     def test_args_two_move
-      assert_equal :next_message, @stats[1].arguments[1].left[1]
-      assert_equal :arguments,    @stats[1].arguments[1].left[2]
+      assert_equal :next_message, @stats[1].arguments[1].left.slots[0]
+      assert_equal :arguments,    @stats[1].arguments[1].left.slots[1]
     end
     def test_args_two_str
       assert_equal IntegerStatement,    @stats[1].arguments[1].right.class

test/vool/to_mom/send/test_send_simple_string.rb

@@ -16,8 +16,8 @@ module Vool
     end
 
     def test_args_one_move
-      assert_equal :next_message, @stats[1].arguments[0].left[1]
-      assert_equal :arguments,    @stats[1].arguments[0].left[2]
+      assert_equal :next_message, @stats[1].arguments[0].left.slots[0]
+      assert_equal :arguments,    @stats[1].arguments[0].left.slots[1]
     end
     def test_args_one_str
       assert_equal IntegerStatement,    @stats[1].arguments[0].right.class

test/vool/to_mom/test_ivar.rb

@@ -19,13 +19,13 @@ module Vool
       assert @method.first.left
     end
     def test_slot_starts_at_message
-      assert_equal :message , @method.first.left[0]
+      assert_equal :message , @method.first.left.known_object
     end
     def test_slot_gets_self
-      assert_equal :self , @method.first.left[1]
+      assert_equal :self , @method.first.left.slots[0]
     end
     def test_slot_assigns_to_local
-      assert_equal :a , @method.first.left[-1]
+      assert_equal :a , @method.first.left.slots[-1]
     end
     def test_slot_assigns_something
       assert @method.first.right

test/vool/to_mom/test_return.rb

@@ -25,10 +25,10 @@ module Vool
       assert_equal Mom::ReturnSequence,  @stats.last.class
     end
     def test_slot_starts_at_message
-      assert_equal :message , @stats.first.left[0]
+      assert_equal :message , @stats.first.left.known_object
     end
     def test_slot_gets_return
-      assert_equal :return_value , @stats.first.left[1]
+      assert_equal :return_value , @stats.first.left.slots[0]
     end
     def test_slot_assigns_something
       assert @stats.first.right