Sort api_test.dart
Sort api_test.dart

Change-Id: I1beb4c553b0e9b03ce9c37d3507ec33ed44269ea
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/202260
Reviewed-by: Konstantin Shcheglov <09e4d7516628963212bf4aace2f97603d2b706e4@google.com>
Reviewed-by: Samuel Rawlins <5cf2cac5eec2ad6d0eb2b0f4ff6af9a590ce2bf6@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