fix all mom tests

still quite brittle, but easy to fix

test/mom/test_while_cmp.rb

@@ -7,12 +7,13 @@ module Risc
     def setup
       super
       @input = "while(5 > 0) ; @a = true; end;return"
-      @expect = [Label, LoadConstant, RegToSlot, LoadConstant, SlotToReg, #4
-                 RegToSlot, LoadConstant, SlotToReg, RegToSlot, LoadConstant, #9
-                 SlotToReg, RegToSlot, SlotToReg, FunctionCall, Label, #14
-                 SlotToReg, LoadConstant, OperatorInstruction, IsZero, LoadConstant, #19
-                 OperatorInstruction, IsZero, LoadConstant, SlotToReg, RegToSlot, #24
-                 Branch, Label, LoadConstant, RegToSlot, Branch,] #29
+      @expect =  [Label, LoadConstant, SlotToReg, RegToSlot, LoadConstant, #5
+                 SlotToReg, RegToSlot, LoadConstant, SlotToReg, RegToSlot, #10
+                 LoadConstant, SlotToReg, RegToSlot, SlotToReg, FunctionCall, #15
+                 Label, SlotToReg, LoadConstant, OperatorInstruction, IsZero, #20
+                 LoadConstant, OperatorInstruction, IsZero, LoadConstant, SlotToReg, #25
+                 RegToSlot, Branch, Label, LoadConstant, RegToSlot, #30
+                 Branch,] #35
     end
 
     def test_while_instructions
@@ -23,33 +24,33 @@ module Risc
     end
     def test_int_load_5
       produced = produce_body
-      load = produced.next(3)
+      load = produced.next(4)
       assert_equal Risc::LoadConstant , load.class
       assert_equal Parfait::Integer , load.constant.class
       assert_equal 5 , load.constant.value
     end
     def test_int_load_0
       produced = produce_body
-      load = produced.next(6)
+      load = produced.next(7)
       assert_equal Risc::LoadConstant , load.class
       assert_equal Parfait::Integer , load.constant.class
       assert_equal 0 , load.constant.value
     end
     def test_false_check
       produced = produce_body
-      assert_equal  Risc::IsZero , produced.next(18).class
-      assert produced.next(18).label.name.start_with?("merge_label") , produced.next(18).label.name
+      assert_equal  Risc::IsZero , produced.next(19).class
+      assert produced.next(19).label.name.start_with?("merge_label") , produced.next(19).label.name
     end
     def test_nil_load
       produced = produce_body
-      assert_equal Risc::LoadConstant , produced.next(22).class
-      assert_equal Parfait::TrueClass , produced.next(22).constant.class
+      assert_equal Risc::LoadConstant , produced.next(23).class
+      assert_equal Parfait::TrueClass , produced.next(23).constant.class
     end
 
-    def ttest_back_jump # should jump back to condition label
+    def test_back_jump # should jump back to condition label
       produced = produce_body
-      assert_equal Risc::Branch , produced.next(31).class
-      assert_equal produced.name , produced.next(31).label.name
+      assert_equal Risc::Branch , produced.next(26).class
+      assert_equal produced.name , produced.next(26).label.name
     end
 
   end