[PATCH 0/3] refs: ab/refs-errno-cleanup fixup + remove "failure_errno"

The 1/3 here fixes the bug Han-Wen pointed out in[1]. As discussed there it's obviously bad in the pre-image, but some oddities in refs_resolve_ref_unsafe() interacts with code it calls ended mostly plastering over the differences by accident, so it wasn't caught by testing.

Then 2/3 makes the one external user of that "failure_errno" stop using it, and 3/3 removes it entirely from the API interface.

1. https://lore.kernel.org/git/CAFQ2z_NHXKss4LVBAFVpE7LFXt2OeOz9P9wi-z8riwHXWDb28w@mail.gmail.com/

Ævar Arnfjörð Bjarmason (3):
  refs API: use "failure_errno", not "errno"
  sequencer: don't use die_errno() on refs_resolve_ref_unsafe() failure
  refs API: remove "failure_errno" from refs_resolve_ref_unsafe()

 refs.c                    | 53 +++++++++++++--------------------------
 refs.h                    |  7 +-----
 refs/files-backend.c      | 34 ++++++++-----------------
 sequencer.c               | 10 +++-----
 t/helper/test-ref-store.c |  3 +--
 worktree.c                | 11 +++-----
 6 files changed, 35 insertions(+), 83 deletions(-)