The streaming compilation pipeline did not parse the names section and
this is also not longer needed for getting function or local names.
However, the module name still needs to be set eagerly.

Change-Id: I1ac12e98b970ea0781302dc44ee684510bdf2d69
Reviewed-on: https://chromium-review.googlesource.com/962452Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Stephan Herhut <herhut@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51979}