get the label int to work consistently

still need to use it in the return

test/support/fake_int.rb

@@ -0,0 +1,15 @@
+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