Description

Calling RuntimeHelpers.RunClassConstructor on a generic type throws an exception.

Reproduction Steps

Test case:

using System.Runtime.CompilerServices;

class App
{
    static void Main()
    {
        foreach (var type in typeof (App).Assembly.GetTypes ())
            RuntimeHelpers.RunClassConstructor (type.TypeHandle);
    }

    static App ()
    {
        Console.WriteLine ("App cctor!");
    }
}

class C<T> {
    static C () {
        Console.WriteLine ("cctor!");
    }
}

Expected behavior

$ dotnet run
App cctor!

Actual behavior

dotnet run
App cctor!
Unhandled exception. System.InvalidOperationException: Could not execute the method because either the method itself or the containing type is not fully instantiated.
   at C`1..cctor()
   at System.Runtime.CompilerServices.RuntimeHelpers.RunClassConstructor(RuntimeTypeHandle type)
   at App.Main() in /Users/rolf/test/dotnet/console/Program.cs:line 8

Regression?

Yes, this works in .NET 8 and 9.0.0-preview.5.24256.1, but fails with 9.0.100-preview.6.24320.12

It started happening in this maestro bump; dotnet/macios#20621, so the regression range is: 84b3339...3750ac5

Known Workarounds

No response

Configuration

No response

Other information

No response