Changes in node_modules not getting picked up in harness

[DanielRosenwasser]

Open up src\testRunner\parallel\worker.ts

git checkout master
git reset 197ac804d164cdbc80876d49f87cbcf73a779c1c -- package.json
git reset 197ac804d164cdbc80876d49f87cbcf73a779c1c -- package-lock.json
npm ci

Now restart tsserver. You'll get an error about dispose not existing.

Then run

git checkout -- package.json
git checkout -- package-lock.json
npm ci

Now you'll see that Mocha isn't a found namespace anymore.