e42a0af8da
`Source.text` is the cached `utf8.decode(source)`. Use it instead of decoding `source` for each `assert` statement. Change-Id: I118992d8e71d75f048064e12aed32ff396273425 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/360820 Reviewed-by: Nicholas Shahan <nshahan@google.com> Commit-Queue: Ömer Ağacan <omersa@google.com>