perf(semantic): inline enter_kind for TSTypeReference

[camc314]

Ref #18098

[camc314]

• perf(semantic): remove enter_kind #17439
• perf(semantic): inline enter_kind for ContinueStatement #17436
• perf(semantic): inline enter_kind for BreakStatement #17435
• perf(semantic): inline enter_kind CFG statement handling #17433
• perf(semantic): inline enter_kind for TSTypeReference #17432 👈 (View in Graphite)
• perf(semantic): inline enter_kind for TSClassImplements #17431
• perf(semantic): inline enter_kind for TSInterfaceHeritage #17430
• perf(semantic): inline enter_kind for CallExpression #17429
• perf(semantic): inline enter_kind for YieldExpression #17428
• main

---

How to use the Graphite Merge Queue

Add either label to this PR to merge it via the merge queue:

• 0-merge - adds this PR to the back of the merge queue
• hotfix - for urgent hot fixes, skip the queue and merge this PR next

You must have a Graphite account in order to use the merge queue. Sign up using this link.

An organization admin has enabled the Graphite Merge Queue in this repository.

Please do not merge from GitHub as this will restart CI on PRs being processed by the merge queue.

This stack of pull requests is managed by Graphite. Learn more about stacking.

[camc314]

Merge activity

• Dec 28, 4:16 PM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Dec 28, 4:22 PM UTC: camc314 added this pull request to the Graphite merge queue.
• Dec 28, 5:03 PM UTC: The Graphite merge queue couldn't merge this PR because it timed out.
• Dec 28, 8:07 PM UTC: camc314 added this pull request to the Graphite merge queue.
• Dec 28, 8:08 PM UTC: Merged by the Graphite merge queue.

[codspeed-hq]

CodSpeed Performance Report

Merging #17432 will not alter performance

_{Comparing c/12-27-perf_semantic_inline_enter_kind_for_tstypereference_ (d16f211) with c/12-27-perf_semantic_inline_enter_kind_for_tsclassimplements_ (c2e9e05)}

Summary

✅ 42 untouched
⏩ 3 skipped¹

Footnotes

1. 3 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[Copilot]

Pull request overview

This PR optimizes performance by inlining the enter_kind logic for TSTypeReference nodes directly into a custom visitor method. This avoids the overhead of the match statement in enter_kind for this frequently-visited TypeScript AST node type.

Key changes:

• Added custom visit_ts_type_reference method that sets reference flags inline
• Removed the TSTypeReference case from the enter_kind match statement

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.