test(compiler): cover @Inject(TOKEN) on pipe constructor params

[Brooooooklyn]

Regression tests for b2dd390: assert the pipe factory injects the
@Inject token (not the erased type annotation), preserves Optional/
SkipSelf flags alongside @Inject, and still falls back to the type
annotation when @Inject is absent.

Co-Authored-By: Claude Opus 4.6 noreply@anthropic.com

---

Note

Low Risk
Test-only changes that add coverage for DI token/flag generation in pipe factories; no production logic is modified.

Overview
Adds new integration regression tests for pipe compilation to ensure constructor DI token extraction prefers @Inject(TOKEN) over the TypeScript type annotation, preventing erased interface types from becoming undefined at runtime.

The tests also assert @Optional/@SkipSelf flags are preserved when combined with @Inject, and that the factory still falls back to class type annotations when @Inject is not present.

^{Reviewed by Cursor Bugbot for commit dadfaa2. Bugbot is set up for automated code reviews on this repo. Configure here.}

[Brooooooklyn]

• test(compiler): cover @Inject(TOKEN) on pipe constructor params #235 👈 (View in Graphite)
• main

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