new_with_abstract_class error message is confusing in Dart 2

[jamesderlin]

Running dartanalyzer on the following code:

abstract class Foo {}

final f = Foo();

generates:

error • Abstract classes can't be created with a 'new' expression at foo.dart:3:11 • new_with_abstract_class
1 error found.

This is a bit confusing since I didn't use new. It would be better if that were removed from the error message.

(I'm using Dart 2.5.1 on Linux x64.)

[mit-mit]

Re-opening to track some refactoring @bwilkerson suggested is still needed

[srawlins]

The analyzer now produces the following:

  error • Abstract classes can't be instantiated. • 38695.dart:3:11 • instantiate_abstract_class

when analyzing the example, at Dart 2.8.0-dev.0.0. Any refactoring still required, @bwilkerson ?

[bwilkerson]

Sorry, but I don't remember what refactoring @mit-mit was referring to.

[bwilkerson]

Now I remember. Yes, the refactoring I was talking about was done in https://dart-review.googlesource.com/c/sdk/+/126780.