[exp] trace: regenerate to include CL 691815

[Nick Ripley (Gerrit)]

Nick Ripley submitted the change

Change information

Commit message:

trace: regenerate to include CL 691815

This CL makes the following changes to gen.bash:

- Clean up files at the start to make it easier to work on gen.bash.
  The only ones we don't clean up are gen.bash itself and the
  experimental version of the flight recorder.
- Copy the internal/diff package, which is a new test-only dependency.
- Replace the new test-only internal/testenv dependency with an inlined
  version of the only fuction the tests actually use, testenv.Builder().
- Replace the t.ArtifactDir call in the tests with t.TempDir.
  t.ArtifactDir is a Go 1.26+ API, and we don't want to require that
  yet. We generally don't expect these tests to break unlesss they were
  broken at the time we mirror the code, so we don't lose much with this
  change.

Fixes golang/go#76751

[git-generate]
cd trace
./gen.bash 54b82e9

Change-Id: I6a6a6964c10350dcab290b45f6481a26ed26d9be

Reviewed-on: https://go-review.googlesource.com/c/exp/+/724442

LUCI-TryBot-Result: Go LUCI <golang...@luci-project-accounts.iam.gserviceaccount.com>

Reviewed-by: Carlos Amedee <car...@golang.org>

Reviewed-by: Michael Knyszek <mkny...@google.com>

Files:

• M trace/base.go
• M trace/event.go
• M trace/event_test.go
• M trace/gen.bash
• A trace/internal/diff/diff.go
• A trace/internal/diff/diff_test.go
• A trace/internal/diff/testdata/allnew.txt
• A trace/internal/diff/testdata/allold.txt
• A trace/internal/diff/testdata/basic.txt
• A trace/internal/diff/testdata/dups.txt
• A trace/internal/diff/testdata/end.txt
• A trace/internal/diff/testdata/eof.txt
• A trace/internal/diff/testdata/eof1.txt
• A trace/internal/diff/testdata/eof2.txt
• A trace/internal/diff/testdata/long.txt
• A trace/internal/diff/testdata/same.txt
• A trace/internal/diff/testdata/start.txt
• A trace/internal/diff/testdata/triv.txt
• M trace/internal/raw/textreader.go
• A trace/internal/testtrace/helpers.go
• A trace/internal/testtrace/helpers_test.go
• A trace/internal/testtrace/platforms.go
• M trace/reader_test.go
• M trace/resources.go
• M trace/value.go

Change size: XL

Delta: 25 files changed, 2114 insertions(+), 106 deletions(-)

Branch: refs/heads/master

Submit Requirements:

• Code-Review: +1 by Carlos Amedee, +2 by Michael Knyszek
• TryBots-Pass: LUCI-TryBot-Result+1 by Go LUCI

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Gerrit

Gerrit-MessageType: merged

Gerrit-Project: exp

Gerrit-Branch: master

Gerrit-Change-Id: I6a6a6964c10350dcab290b45f6481a26ed26d9be

Gerrit-Change-Number: 724442

Gerrit-PatchSet: 4

Gerrit-Owner: Nick Ripley <nick....@datadoghq.com>

Gerrit-Reviewer: Carlos Amedee <car...@golang.org>

Gerrit-Reviewer: Go LUCI <golang...@luci-project-accounts.iam.gserviceaccount.com>

Gerrit-Reviewer: Michael Knyszek <mkny...@google.com>

Gerrit-Reviewer: Nick Ripley <nick....@datadoghq.com>