The path rewriter is missing paths

We use `wsrun` in our monorepo to run the typescript compiler in watch mode.
While setting up the vscode default build task and the problem matcher, I've tried to let wsrun rewrite tsc output paths. That fails currently.

```sh
package
| src/index.tsx(33,5): error TS2304: Cannot find name 'adsf'.
```

Would it be an option to give wsrun a pattern which should be checked?