Yeah, I have another PR open for it #19. I'm kind of holding it off since not sure if I want to merge it before tests pass on stable. But stable is not yet released, so maybe it's okay.

This will require latest version to support <=1.38 and a new version for newer versions. I can put this behind a feature flag if you want.

CC #18

This won't be needed until 1.40 (1.39 is fine), but I feel that the feature flag approach should be a reasonable imposition. What do you think? We could even peek the compiler version to enable the right feature so that it is seamless. Keep forgetting that this is not possible.

2 notes:

• datatest is broken again on nightly as rustc_test::parse_opts has moved to rustc_test::test::parse_opts
• You probably want to replicate e8db020 from add test_type to TestDesc to compile on nightly rust #19

Uh-oh. I'll take a look.

Yeah, I copied your changes from #19 to #21, but haven't merged them / finished (I tried used your branch initially, but messed up the merge).

continue over at #19