5865e6db9f
- Add dart2wasm_options syntax to test_matrix.json. - Add a new builder for the JavaScript compatbility mode (`--js-compatbility`). Change-Id: I32642e932f1d4a8a74b5b75f7783117520d51f02 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/322281 Reviewed-by: Aske Simon Christensen <askesc@google.com> Reviewed-by: Alexander Thomas <athom@google.com> Commit-Queue: Ömer Ağacan <omersa@google.com>