3df48faff1
The Wasm validation rules state that the failure type is sharpened to non-nullable if the cast target type is nullable. Change-Id: I77596c31ea7443c5dace543d13024262879a5fb5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/318660 Commit-Queue: Aske Simon Christensen <askesc@google.com> Reviewed-by: Joshua Litt <joshualitt@google.com>