cmd/vet: add directive analyzer

For #56986, add the new directive analyzer that catches
misplaced //go:debug lines.

Ran 'go mod vendor' after adding the import in vet
to bring in the vendored files.

A followup CL will enable it by default in 'go test'.

Change-Id: I12c46e292b31bdbf5ceb86ba4474545e78a83a47
Reviewed-on: https://go-review.googlesource.com/c/go/+/462201
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
5 files changed
tree: a63b2642cb55a176269cd519baa6c68072d1c83a
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. codereview.cfg
  11. CONTRIBUTING.md
  12. go.env
  13. LICENSE
  14. PATENTS
  15. README.md
  16. SECURITY.md
README.md

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