[PATCH 00/10] bisect: port git bisect merge base checking to C

This patch series continues porting "git bisect next" code from shell in "git-bisect.sh" to C in "bisect.c".

After this series, the bisect ref lookup is done only once in the C code, instead of once in the shell code and once in the C code.

  bisect: use "sha1_array" to store skipped revisions
  bisect: implement "rev_argv_push" to fill an argv with revs
  bisect: store good revisions in a "sha1_array"
  bisect: use new "struct argv_array" to prepare argv for
    "setup_revisions"
  bisect: remove too much function nesting
  bisect: make skipped array functions more generic
  bisect: automatically sort sha1_array if needed when looking it up
  bisect: implement the "check_merge_bases" function
  bisect: add "check_good_are_ancestors_of_bad" function
  bisect: make "git bisect" use new "--next-all" bisect-helper function

 bisect.c                 |  342 ++++++++++++++++++++++++++++++++++++++--------
 bisect.h                 |    2 +-
 builtin-bisect--helper.c |   14 +-
 git-bisect.sh            |  127 +-----------------
 4 files changed, 296 insertions(+), 189 deletions(-)