unite the two resolve_to_index functions

test/support/risc_assert.rb

@@ -0,0 +1,15 @@
+module Risc
+  module Assertions
+    def assert_slot_to_reg( slot , array = nil, index = nil , register = nil)
+      assert_equal SlotToReg , slot.class
+      assert_equal( array , slot.array.symbol) if array
+      assert_equal( index , slot.index) if index
+      assert_equal( register , slot.register.symbol) if register
+    end
+    def assert_load(load , clazz = nil , register = nil)
+      assert_equal LoadConstant , load.class
+      assert_equal( clazz , load.constant.class) if clazz
+      assert_equal( register , load.register.symbol) if register
+    end
+  end
+end