x/exp/apidiff: copy changes from x/tools/internal/apidiff

We copied golang.org/x/exp/apidiff to x/tools a few months ago in
anticipation of developing gorelease in x/tools, which would depend on
apidiff.

We've decided to develop gorelease here in x/exp instead, which means
the copy in x/tools is no longer needed. This CL copies changes made
to the copy in x/tools since it was made. Another CL will delete the
copy in x/tools.

Change-Id: Ied79138616c2f3b2f49a0ee5ca95ff3179351354
Reviewed-on: https://go-review.googlesource.com/c/exp/+/197298
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
6 files changed
tree: e610edbad449c7de624fb6bec01036ccaf438c91
  1. .gitattributes
  2. .gitignore
  3. AUTHORS
  4. CONTRIBUTING.md
  5. CONTRIBUTORS
  6. LICENSE
  7. PATENTS
  8. README.md
  9. apidiff/
  10. cmd/
  11. codereview.cfg
  12. ebnf/
  13. ebnflint/
  14. errors/
  15. fsnotify/
  16. go.mod
  17. go.sum
  18. inotify/
  19. io/
  20. mmap/
  21. rand/
  22. shiny/
  23. shootout/
  24. sumdb/
  25. utf8string/
  26. winfsnotify/
README.md

exp

This subrepository holds experimental and deprecated (in the old directory) packages.

The idea for this subrepository originated as the pkg/exp directory of the main repository, but its presence there made it unavailable to users of the binary downloads of the Go installation. The subrepository has therefore been created to make it possible to go get these packages.

Warning: Packages here are experimental and unreliable. Some may one day be promoted to the main repository or other subrepository, or they may be modified arbitrarily or even disappear altogether.

In short, code in this subrepository is not subject to the Go 1 compatibility promise. (No subrepo is, but the promise is even more likely to be violated by go.exp than the others.)

Caveat emptor.