preloading, something akin to builtin, loads some very small predefined (macro) methods for the tests to work (ie call)
missing return statement (duh)
previous commit affected rather many test, as the implicit returns add extra instructions Also added some explicit returns, so as not to test the return logic too much. return (ie return nl) is a knonwn 3 risc operation.
ifs without a true branch would crash before Somewhat more verbose but unified
