Add FrozenDictionary to collections tests

[stephentoub]

No description provided.

[stephentoub]

Is there something I need to do to get the build to use preview nuget packages? These APIs are in System.Collections.Immutable.dll, which ships downlevel, but it appears to be using officially supported packages and thus can't find the APIs downlevel.

[cincuranet]

Where is the preview package? Could the feed be added to this https://github.com/dotnet/performance/blob/main/NuGet.config?

[stephentoub]

If nothing else, at this point the .NET 8 Preview 1 package is available on nuget.
https://www.nuget.org/packages/System.Collections.Immutable/8.0.0-preview.1.23110.8

[cincuranet]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[cincuranet]

I'll check why net462 and nativeaot7.0 are complaining. Rest is green as grass.

[cincuranet]

Hmm, for the nativeaot7.0 ilc takes it's own packages\runtime.win-x64.microsoft.dotnet.ilcompiler\7.0.3\framework\System.Collections.Immutable.dll. Not sure how to force it to use the one from NuGet. Any ideas?

cc @MichalStrehovsky

[MichalStrehovsky]

Not sure how to force it to use the one from NuGet. Any ideas?

I don't know of a way short of hacking MSBuild targets. We track this in dotnet/runtime#67080.

Can this be limited to testing with 8.0 NativeAOT?

[cincuranet]

Can this be limited to testing with 8.0 NativeAOT?

Checking...

[cincuranet]

Finally all the stars aligned and it's green (Blazor failure is unrelated). Merging.

[stephentoub]

Thank you!!