[PATCH] D35396: [lit] Make %T return a per-test temporary directory

[Matthias Braun via Phabricator via llvm-commits]

MatzeB added a comment.

And some heads up: Removing the tmpDir parameter from `getDefaultSubstitutions` will need some changes to the llvm test-suite lit integration which calls this function. But that's no reason to stop this patch, I'll update the test-suite when this is committed.


https://reviews.llvm.org/D35396