sdk/trace/internal/x: generate x package from x component template #7385

[ternua8]

Fix #7385

Summary

This PR adds code generation for the sdk/trace/internal/x package
using the shared x component template.

It mirrors the implementation in sdk/log/internal/x (#7389) for the trace SDK.

Changes

• Added gen.go to run go:generate for x.go and x_test.go.
• Generated x/x.go and x/x_test.go using the shared template.
• Added feature.go with the Observability experimental feature flag for the trace SDK,
  following the pattern used in the log SDK.

Verification

• go generate ./... successfully generates the files.
• Unit tests in x_test.go pass.

References

• Log implementation for reference: chore: sdk/log/internal/x - generate x package from x component template  #7389
• Trace issue: sdk/trace/internal/x: generate x package from x component template #7385

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: ternua8 / name: ternua8 (d5755e7)
• ✅ login: MrAlias / name: Tyler Yahn (0e2fd7c)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.5%. Comparing base (fef6ee5) to head (0e2fd7c).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #7411   +/-   ##
=====================================
  Coverage   85.5%   85.5%           
=====================================
  Files        277     278    +1     
  Lines      24654   24654           
=====================================
+ Hits       21088   21089    +1     
+ Misses      3187    3186    -1     
  Partials     379     379           

Files with missing lines	Coverage Δ
sdk/trace/internal/x/features.go	100.0% <100.0%> (ø)
sdk/trace/internal/x/x.go	100.0% <ø> (ø)

... and 1 file with indirect coverage changes

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[flc1125]

LGTM

[flc1125]

As an additional note: Since this issue was originally assigned to @adity1raut, we hope this PR can also be confirmed by @adity1raut (or if there are any other objections, please raise them).

[MrAlias]

@ternua8 thank you for your contribution. Going forward, please be sure to have the issue you are working on assigned to you and not someone else. Without doing so it can cause wasted effort and significant frustration for community members.

[ternua8]

Thank you for pointing this out. I’m still new here and learning the workflow, so I really appreciate the guidance. I’ll make sure to only take on issues that are assigned to me in the future.

[ternua8]

Recently I’ve been learning more about OpenTelemetry. If there are any beginner-friendly issues, I’d be happy to take them on.

[flc1125]

@adity1raut Hi, since there hasn't been a response yet, We will merge this PR later.