[PATCH] D41784: Fix some issues with opt-viewer tests, plus disable them on Windows

[Reid Kleckner via Phabricator via llvm-commits]

rnk accepted this revision.
rnk added a comment.
This revision is now accepted and ready to land.

Python stuff looks good, but @anemet owns this so I'd ask him.


https://reviews.llvm.org/D41784