This test incorrectly assumed a particular evaluation order in the
presence of an async module script.

Bug:
Change-Id: I77faf777227cbfbe57a58e3779cbaca6dd3c9585
Reviewed-on: https://chromium-review.googlesource.com/859769
Reviewed-by: Hiroshige Hayashizaki <[email protected]>
Commit-Queue: Georg Neis <[email protected]>
Cr-Commit-Position: refs/heads/master@{#529434}