This CL adds the `-Wsuggest-override` and
`-Wsuggest-destructor-override` warnings and fixes up the identified
issues.
Change-Id: I0ec1303a822abc258ce34d3bf1900e37ade6a8dc
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/89561
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>