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Clemens Hammacher authored
Signature maps should only be updated, but never copied. We had a bug because we accidentally updated a copy of the map. This refactoring prevents any such bugs in the future, and fixes more occurences where we accidentally copied structs containing a signature map (the move-only constraint also extends to all structs containing a signature map). Drive-by: Make InstanceBuilder::NeedsWrappers const. R=titzer@chromium.org Bug: chromium:741750 Change-Id: Id919203d8c4078e608a1163e5c790c97d06a9753 Reviewed-on: https://chromium-review.googlesource.com/571791Reviewed-by: Ben Titzer <titzer@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#46728}
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