chore(lsp): regression test for inlay hints on computed property names (#34518)
## Summary
Adds an LSP regression test for
[denoland/deno#30455](https://github.com/denoland/deno/issues/30455).
The TypeScript inlay hint walker used to throw
```
Debug Failure. Unexpected node. Node ComputedPropertyName was unexpected.
```
when asked to display a return type whose object literal contained a
computed key such as `[Symbol.dispose]`. The class from the original
report —
```ts
class Mutex {
#queue: (() => void)[] = [];
async acquire() {
const pwr = Promise.withResolvers<void>();
this.#queue.push(pwr.resolve.bind(pwr));
if (this.#queue.length === 1) {
this.#queue[0]();
}
await pwr.promise;
return {
[Symbol.dispose]: () => {
this.#queue.shift();
if (this.#queue.length > 0) {
this.#queue[0]();
}
},
};
}
}
```
— now resolves inlay hints without errors because the bundled TypeScript
already carries the upstream fix from
[microsoft/TypeScript#61857](https://github.com/microsoft/TypeScript/pull/61857)
(`visitForDisplayParts` now visits `ComputedPropertyName`), which
arrived in Deno via the 5.9.2 update (#30601) and is retained in the
6.0.3 update (#32944).
This PR adds a regression test using the original repro file so the LSP
suite locks the fix in. The expectation is intentionally loose — any
inlay hint on the `acquire()` signature line is enough, since the
original bug short-circuited the whole request with an internal error.
## Test plan
- [ ] CI runs the new `lsp_inlay_hints_computed_property_name` test.
- [x] `cargo check -p integration_tests --tests` passes locally.
Closes denoland/orchid#255
---------
Co-authored-by: divybot <divybot@users.noreply.github.com>
Co-authored-by: Divy Srivastava <me@littledivy.com>
deno
8b46ff4f - chore(lsp): regression test for inlay hints on computed property names (#34518)
