get the label int to work consistently

still need to use it in the return

test/arm/helper.rb

@@ -13,21 +13,6 @@ module Arm
       true
     end
   end
-  class FakeInt
-    attr_reader :value
-    def initialize(val)
-      set_value(val)
-    end
-    def is_a?(clazz)
-      clazz == Parfait::Integer
-    end
-    def byte_length
-      4
-    end
-    def set_value(val)
-      @value = val
-    end
-  end
   module ArmHelper
     def setup
       @machine = Arm::ArmMachine