Add `tests/corelib/` to the fileset that contains all the "_2" test
suites so it can be read by
`pkg/compiler/test/end_to_end/dill_loader_test.dart`.
The `dart2js-unit-linux-x64-release` bot configuration uses
the `js_platform_2` fileset because many of the tests under `pkg/compiler/test/` are running or referencing unsound test
files. As the tests migrate to use sound null safety, they will
need to update their hard coded paths to use the sound version
of the test files. More test paths can be added to the fileset as
needed until all the testes are running with sound null safety. Then
the bot configuration can switch to use the `js_platform` fileset
instead.
Change-Id: I0542e035b89bb512c61e1259f86e4378590fb178
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/294680
Reviewed-by: Nate Bosch <nbosch@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Nate Biggs <natebiggs@google.com>
Nicholas Shahan
178063c7f4