[ts] Type-check sources/GoToLineQuickOpen.js with TypeScript
[ts] Type-check sources/GoToLineQuickOpen.js with TypeScript

R=8915f5d5c39a08c5a3e8a8d7314756e4580816f9@chromium.org

Bug: chromium:1011811
Change-Id: I4f813693a0f7249d3f36e0d21044364c0213ccf5
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2404651
Reviewed-by: Paul Lewis <8915f5d5c39a08c5a3e8a8d7314756e4580816f9@chromium.org>
Commit-Queue: Simon Zünd <38944668e9e2ca98ccd0275b53370f90fa55c113@chromium.org>

ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend