[PATCH] D82203: [FileCheck] Implement -dump-input-context and -dump-input-filter

[Richard Smith - zygoloid via Phabricator via llvm-commits]

rsmith added a comment.

This direction looks great to me! The recent changes to `FileCheck` have made its output useless for many Clang tests (so much output is produced that the actual error message is not even in my scrollback!) and it looks like this would give a much better balance between terseness and including useful information, while still letting us produce the full output as part of CI.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D82203/new/

https://reviews.llvm.org/D82203