All uses of @typedef-defined types are marked deprecated

**TypeScript Version:**  latest

```js
/** @typedef {{ email: string, nickName?: string }} U2 */

/** @type {U2} */
const u2 = { email: "" }
```

**Actual behavior:**
`U2` in `/** @type {U2} */` is marked deprecated.

While I dislike `@typedef` as much as the next programmer, we shouldn't mark every alias created with it as deprecated.