[llvm-dev] PSA: Potential lit workflow change

[Zachary Turner via llvm-dev]

Hi all, I've got https://reviews.llvm.org/D37756 up for review currently
which simplifies a lot of the logic in our lit config files.

For most people, this will be completely transparent and "just work", but
it breaks one workflow that people should be aware of.

Problem: If you run lit by putting llvm-config in your path and then
running <source-root>/utils/lit/lit.py <source-root>/<path-to-test-file>
then this is not going to work anymore.

Luckily, there's an easy fix:

Solution: Run <output-tree>/bin/llvm-lit.py
<source-root>/<path-to-test-file>

Happy to answer any questions here or on the code review.
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