Helps speed up fuzzing
Change-Id: I19c0476fbb1b6fd497716e2537093c27c69e3007
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/33721
Auto-Submit: Ben Clayton <bclayton@google.com>
Commit-Queue: David Neto <dneto@google.com>
Reviewed-by: David Neto <dneto@google.com>