Propagate -o xtrace when needed and prepend builtin to emulate

[psprint]

Description

The patch adds -o xtrace to all emulate -L calls when needed, i.e.: when already active at the entry to the function.

Motivation and Context

I've saw some GH issue where this problem, i.e.: of vanishing xtrace mode in emulate -L zsh functions was described.

Also, the patch adds builtin before all emulate calls.

How Has This Been Tested?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

[vladdoster]

For brevity, could you link the issue you are referencing?

Is this the issue? It's the only issue that has a trace reference.

[psprint]

No it was a different issue. Someone elaborated on how difficult it is to xtrace zinit execution due to emulate -L zsh calls. I cannot find it, and I've also stumbled upon the issue you mentioned.

[jankatins]

Wohoo, thanks!

[psprint]

The comment/PR that I was talking about is here.

[github-actions]

🎉 This PR is included in version 3.8.0 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀