- Add EXIT keyword argument to do-tests. This will exit with a
  non-zero status code on test failures and a zero status code on
  success.
- Add EXPECTED-FAILURES keyword argument to DO-TESTs. If this argument
  is provided then it will override the contents of
  *EXPECTED-FAILURES*. If it is a pathname then the test names will be
  read from the file with the CL-TEST package as *PACKAGE*.
  Keywords in this file or in a supplied list will be interpreted as
  the names of notes to disable.
- For some implementations load the expected failures from a file in
  the expected-failures folder.