MinimalVariantTags accepts a list of tag-sets (e.g GPU tags, OS tags, etc),
and returns an optimized list of variants, folding together variants that
have identical result query-to-status mappings, and removing redundant tags.
Bug: dawn:1342
Change-Id: I759c82e9a0631a9d321d376656e5a2dbbf5f5507
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87643
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
2c1154c36f