finally get rid of the fixme in div10

create (load/reduce) the int once and transfer.
Save a cruicial 2 instructions

Also expanded the variable name possibilities with _self, __const , _1 and _2

test/risc/test_builder2.rb

@@ -31,6 +31,15 @@ module Risc
     def test_caller_obj
       assert_equal :Message , @builder.infer_type(:caller_obj).class_name
     end
+    def test_caller_const
+      assert_equal :Message , @builder.infer_type(:caller_const).class_name
+    end
+    def test_caller_self
+      assert_equal :Message , @builder.infer_type(:caller_self).class_name
+    end
+    def test_caller_1
+      assert_equal :Message , @builder.infer_type(:caller_1).class_name
+    end
     def test_message
       assert_equal :Message , @builder.infer_type(:message).class_name
     end