(request) An option akin to `go test`'s `-failfast`

[spencerwilson]

In go1.23.3 (and possibly earlier), go test supports a test flag:

	-failfast
	    Do not start new tests after the first test failure.

This flag has no effect when using gocheck as from Go's perspective, a test package contains only one test: a function that calls to gocheck's TestingT func.

I find fail fast helpful to more readably see what test failed. Without it I have to scroll through all the output from the test in order to find the failure. I understand though if it's not a goal of gocheck to reimplement every go test flag there is.

[jhenstridge]

Out of interest, do the changes in #122 solve your problem? That PR rips out go-check's test runner and converts over to using the subtest feature of the stdlib testing package. I didn't write it with the intent of supporting -failfast, but might have ended up supporting it as a side effect.

If it does, I might have another go at trying to get that PR into a release.