The renames capture what the item being unwrapped is - it's always
a js-to-wasm wrapper, which is more closely captured by "export" rather
than "import".

Bug: 
Change-Id: Iffc3d8cb9037afc2d32885301fd13fc12b8277ce
Reviewed-on: https://chromium-review.googlesource.com/648005Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47827}