AOT compilation failed: Invalid argument(s): Missing canonical name for Reference

[xvrh]

Here is a stripped down version of a compiler error that appear when upgrading to Flutter 2.8 (Dart 2.15.0).
Dart SDK version: 2.15.0 (stable) (Fri Dec 3 14:23:23 2021 +0100) on "macos_x64"

I can reproduce it with dart compile so I open the bug in this repository.

dart compile exe -o output canonical_name_bug.dart

import 'dart:async';
import 'package:rxdart/rxdart.dart';

void main() {
  DataStream<A>(loader: () async => A());
}

abstract class Disposable {
  void dispose();
}

class A {}

class Data<T> {
  final T? value;
  final Object? error;

  const Data({this.value, this.error, bool? isLoading});
}

class _Event<T> {
  final completer = Completer<Data<T>>();
}

class DataStream<T> {
  final _stream = BehaviorSubject<Data<T>>();
  final _events = StreamController<_Event<T>>();
  final Future<T> Function() loader;

  DataStream({
    required this.loader,
  }) {
    _events.stream.asyncExpand(_expand).listen((data) {
      var lastValue = _stream.value.value;
      var newValue = data.value;

      if (lastValue != null &&
          lastValue is Disposable &&
          lastValue != newValue) {
        lastValue.dispose();
      }
    });
  }

  Stream<Data<T>> _expand(_Event<T> event) async* {
    var result = await loader();
    yield Data(value: result);
  }
}

Compiler output:

Invalid argument(s): Missing canonical name for Reference to Disposable
#0      BinaryPrinter.writeNonNullReference (package:kernel/binary/ast_to_binary.dart:941:9)
#1      BinaryPrinter.visitInterfaceType (package:kernel/binary/ast_to_binary.dart:2325:7)
#2      InterfaceType.accept (package:kernel/ast.dart:11111:42)
#3      BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#4      BinaryPrinter.writeOptionalNode (package:kernel/binary/ast_to_binary.dart:522:7)
#5      BinaryPrinter.visitTypeParameterType (package:kernel/binary/ast_to_binary.dart:2433:5)
#6      TypeParameterType.accept (package:kernel/ast.dart:11884:42)
#7      BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#8      BinaryPrinter.writeOptionalNode (package:kernel/binary/ast_to_binary.dart:522:7)
#9      BinaryPrinter.visitVariableGet (package:kernel/binary/ast_to_binary.dart:1514:7)
#10     VariableGet.accept (package:kernel/ast.dart:4142:44)
#11     BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#12     BinaryPrinter.visitEqualsCall (package:kernel/binary/ast_to_binary.dart:1664:5)
#13     EqualsCall.accept (package:kernel/ast.dart:6094:44)
#14     BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#15     BinaryPrinter.visitNot (package:kernel/binary/ast_to_binary.dart:1770:5)
#16     Not.accept (package:kernel/ast.dart:6534:44)
#17     BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#18     BinaryPrinter.visitLogicalExpression (package:kernel/binary/ast_to_binary.dart:1794:5)
#19     LogicalExpression.accept (package:kernel/ast.dart:6606:44)
#20     BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#21     BinaryPrinter.visitIfStatement (package:kernel/binary/ast_to_binary.dart:2201:5)
#22     IfStatement.accept (package:kernel/ast.dart:9794:43)
#23     BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#24     BinaryPrinter.writeNodeList (package:kernel/binary/ast_to_binary.dart:340:7)
#25     BinaryPrinter.visitBlock (package:kernel/binary/ast_to_binary.dart:2069:5)
#26     Block.accept (package:kernel/ast.dart:8890:43)
#27     BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#28     BinaryPrinter.writeOptionalNode (package:kernel/binary/ast_to_binary.dart:522:7)
#29     BinaryPrinter.visitFunctionNode (package:kernel/binary/ast_to_binary.dart:1487:5)
#30     FunctionNode.accept (package:kernel/ast.dart:3851:38)
#31     BinaryPrinter.writeFunctionNode (package:kernel/binary/ast_to_binary.dart:437:10)
#32     BinaryPrinter.visitFunctionExpression (package:kernel/binary/ast_to_binary.dart:2002:5)
#33     FunctionExpression.accept (package:kernel/ast.dart:8284:44)
#34     BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#35     BinaryPrinter.writeNodeList (package:kernel/binary/ast_to_binary.dart:340:7)
#36     BinaryPrinter.visitArguments (package:kernel/binary/ast_to_binary.dart:1757:5)
#37     Arguments.accept (package:kernel/ast.dart:5124:38)
#38     BinaryPrinter.writeArgumentsNode (package:kernel/binary/ast_to_binary.dart:444:10)
#39     BinaryPrinter.visitInstanceInvocation (package:kernel/binary/ast_to_binary.dart:1696:5)
#40     InstanceInvocation.accept (package:kernel/ast.dart:5505:44)
#41     BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#42     BinaryPrinter.visitExpressionStatement (package:kernel/binary/ast_to_binary.dart:2058:5)
#43     ExpressionStatement.accept (package:kernel/ast.dart:8834:43)
#44     BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#45     BinaryPrinter.writeNodeList (package:kernel/binary/ast_to_binary.dart:340:7)
#46     BinaryPrinter.visitBlock (package:kernel/binary/ast_to_binary.dart:2069:5)
#47     Block.accept (package:kernel/ast.dart:8890:43)
#48     BinaryPrinter.writeNode (package:kernel/binary/ast_to_binary.dart:430:10)
#49     BinaryPrinter.writeOptionalNode (package:kernel/binary/ast_to_binary.dart:522:7)
#50     BinaryPrinter.visitFunctionNode (package:kernel/binary/ast_to_binary.dart:1487:5)
#51     FunctionNode.accept (package:kernel/ast.dart:3851:38)
#52     BinaryPrinter.writeFunctionNode (package:kernel/binary/ast_to_binary.dart:437:10)
#53     BinaryPrinter.visitConstructor (package:kernel/binary/ast_to_binary.dart:1254:5)
#54     Constructor.accept (package:kernel/ast.dart:2472:40)
#55     BinaryPrinter.writeConstructorNode (package:kernel/binary/ast_to_binary.dart:486:10)
#56     BinaryPrinter.writeConstructorNodeList (package:kernel/binary/ast_to_binary.dart:385:7)
#57     BinaryPrinter.visitClass (package:kernel/binary/ast_to_binary.dart:1220:5)
#58     Class.accept (package:kernel/ast.dart:1417:38)
#59     BinaryPrinter.writeClassNode (package:kernel/binary/ast_to_binary.dart:472:10)
#60     BinaryPrinter.writeClassNodeList (package:kernel/binary/ast_to_binary.dart:367:7)
#61     BinaryPrinter.visitLibrary (package:kernel/binary/ast_to_binary.dart:1058:5)
#62     Library.accept (package:kernel/ast.dart:557:38)
#63     BinaryPrinter.writeLibraryNode (package:kernel/binary/ast_to_binary.dart:451:10)
#64     BinaryPrinter.writeLibraries (package:kernel/binary/ast_to_binary.dart:756:9)
#65     BinaryPrinter.writeComponentFile.<anonymous closure> (package:kernel/binary/ast_to_binary.dart:595:7)
#66     Timeline.timeSync (dart:developer/timeline.dart:163:22)
#67     BinaryPrinter.writeComponentFile (package:kernel/binary/ast_to_binary.dart:577:14)
#68     runCompiler (package:vm/kernel_front_end.dart:289:11)
<asynchronous suspension>
#69     main (file:///opt/s/w/ir/cache/builder/sdk/pkg/vm/bin/gen_kernel.dart:34:19)
<asynchronous suspension>
Error: AOT compilation failed
Generating AOT kernel dill failed!

It seems this is because I have an is on an abstract class that is not extended anywhere.

[mraleph]

/cc @alexmarkov

[a-siva]

fix for this is a potential candidate for cherry pick into 2.16 beta 1