internal/fmtsort: sort the unsafe pointers in map

Currently storing keys that contain unsafe.
Pointer in a map could result inruntime panic when printing the map.
The root cause is that unsafe.Pointer is not comparable.

Fixes #42622.

Change-Id: Ie3bae7ee4945041843b66514de6227212a3da73e
GitHub-Last-Rev: d12d41302e6118cb457aafb05f7aaed9df259b56
GitHub-Pull-Request: golang/go#42623
Reviewed-on: https://go-review.googlesource.com/c/go/+/270277
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2 files changed
tree: e28a5a9ddc1325e318f68d93d178b98fa83a43ca
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
  18. SECURITY.md
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