fixes #2033 namespace import reexport case

[guybedford]

This fixes #2033.

Again, rebased to prettier and Rollup update PRs to ensure passing tests and noise-free diff!

[lukastaegert]

👍Looks good!

[lukastaegert]

One note though on making PRs vs branches other than master: If this is not really necessary I'd rather have the noise in the PR but have it raised against master. Otherwise it is much harder to do the merges right in a way that Github's merge detection works properly. So for this PR, I will

• Merge apply-prettier into a release branch first
• Change the base branch of this PR to the new release branch
• Merge this PR into the release branch. Then this branch will be marked as merged though it is technically not merged into master. And if there are lots of other things in the release, it may be like that for quite some time
• Then merge the release branch into master

While if it is raised against master, I can

• Merge PRs into my release branch in any order I like
• They will only be marked as merged once this release branch is merged into master

[guybedford]

@lukastaegert this was a one off to deal with (a) failing tests and (b) commit noise from an added commit hook that was modifying all PRs to make them harder to review. Correcting these issues created by others took me an hour. The least you can do is deal with a slightly different rebase process.