Fit SRFI 175 tests into Gambit's native test framework

[lassik]

I made a simple conversion where the sample implementation's tests now use check-equal? instead of a custom test runner. check-equal? seems to be found, but gsi . srfi/175/test says:

*** ERROR IN "srfi/175/test.scm"@4.47 -- Unbound variable: _test#passed-test```

[feeley]

I made a simple conversion where the sample implementation's tests now use check-equal? instead of a custom test runner. check-equal? seems to be found, but gsi . srfi/175/test says:

*** ERROR IN "srfi/175/test.scm"@4.47 -- Unbound variable: _test#passed-test```

This may be due to using an old _test module... did you "make modules"?

[lassik]

Not sure, but you're right - I just rebuilt Gambit and now everything works :) *** all tests passed out of a total of 4739 tests