And we are green again

After having over 600 failing tests at one point, this does feel good.
Even better, most of the risc/interpreter tests where i didn't change anything came gree without changing the tests. ie we have binary compatibility.

lib/mom/builtin/init.rb

@@ -27,7 +27,7 @@ module Mom
           add_code exit_label
         end
         compiler.reset_regs
-        exit_sequence(builder)
+        Builtin.exit_sequence(builder)
         return compiler
       end
     end