Fix terminology
Fix terminology

Related to https://github.com/dart-lang/sdk/issues/42136

Followup to https://dart-review.googlesource.com/c/sdk/+/149595/1

Change-Id: I9427374434d9d38c6b83f71466445edf6db5ea02
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/161107
Reviewed-by: Martin Kustermann <a35dd5b79fac84b2bb3b026a16b8becc55af5961@google.com>
Commit-Queue: Michael Thomsen <5977a55c75bb4612004451a56b0b4c22d9d3311d@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk