Starting to build detailed mom to risc test

so we can get rid of brittle risc folder tests
All of those tests rely on many many implementation details
should just test result through interpreter, no chain.

test/support/risc_assert.rb

@@ -22,5 +22,13 @@ module Minitest
       assert_equal from , transfer.from.symbol
       assert_equal to , transfer.to.symbol
     end
+    def assert_label( label , name )
+      assert_equal Risc::Label , label.class
+      if(name[-1] == "_")
+        assert label.name.start_with?(name) , "Label does not start with #{name}:#{label.name}"
+      else
+        assert_equal name , label.name
+      end
+    end
   end
 end