nx_author_test.nx

nx_author_test.nx -- the team AUTHORS a new primitive from its own diagnosis, by EXPERIMENT. It is given ONLY the mnemonic it diagnosed as missing ("imulq") -- not what it does. It probes the instruction on 5 (K,x) examples, observes the outputs by RUNNING them, and INFERS the semantics by testing hypotheses. It learns, with no one telling it, that imul computes MULTIPLY -- the team teaches itself a new op. Known answer: learned == MULTIPLY.