226a667ef9
We add the `dart.tool.dart2wasm.minify` environment define (analogous to how dart2js exposes `dart.tool.dart2js.minify`). We make `package:expect/variations.dart` then expose to tests what guarantees they can assume, namely * `readableTypeStrings` * `preciseErrorsWithDetails` Change-Id: I43da09ed924ca9137721f4d70b7a494e01bf36e4 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/430680 Reviewed-by: Ömer Ağacan <omersa@google.com> Commit-Queue: Martin Kustermann <kustermann@google.com>