cmd/dist: inline matchexpr into its only caller

Now that the implementation of matchexpr is trivial (because it reuses
the go/build/constraint package), inline it into its only caller. This
leaves two fewer .go files in cmd/dist: no need for TestBuildParser as
the go/build/constraint package has its own tests.

For #79185.

Change-Id: Ib3312527e14b8e826493558594a607fa0f06fd18
Reviewed-on: https://go-review.googlesource.com/c/go/+/773823
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
3 files changed
tree: 8a8f749644f67d8d32d985ec7a87628394ab8395
  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
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