Merge branch 'ps/the-repository'

Merge branch 'ps/the-repository'

More code paths have a repository passed through the callchain,
instead of assuming the primary the_repository object.

* ps/the-repository:
  match-trees: stop using `the_repository`
  graph: stop using `the_repository`
  add-interactive: stop using `the_repository`
  tmp-objdir: stop using `the_repository`
  resolve-undo: stop using `the_repository`
  credential: stop using `the_repository`
  mailinfo: stop using `the_repository`
  diagnose: stop using `the_repository`
  server-info: stop using `the_repository`
  send-pack: stop using `the_repository`
  serve: stop using `the_repository`
  trace: stop using `the_repository`
  pager: stop using `the_repository`
  progress: stop using `the_repository`