Gives feedback much eariler.
Also move the error messages after the table
Change-Id: If462fd9bbc72ff9428d6ee77c8ec6c9338f7f27e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54000
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>