[Fact]
        public void NoPia_10()
        {
            var attributes = CreateCompilation(NoPiaAttributes, options: TestOptions.ReleaseDll, targetFramework: TargetFramework.NetStandardLatest);
            var attributesRef = attributes.EmitToImageReference();

            string pia = @"
using System;
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;

[assembly: PrimaryInteropAssemblyAttribute(1,1)]
[assembly: Guid(""f9c2d51d-4f44-45f0-9eda-c9d599b58257"")]

[ComImport()]
[Guid(""f9c2d51d-4f44-45f0-9eda-c9d599b58279"")]
public interface ITest33
{
    void M1();
}

[ComImport()]
[Guid(""f9c2d51d-4f44-45f0-9eda-c9d599b58280"")]
public interface ITest44 : ITest33
{
    abstract void ITest33.M1();
}
";

            var piaCompilation = CreateCompilation(pia, options: TestOptions.ReleaseDll, references: new[] { attributesRef }, targetFramework: TargetFramework.NetStandardLatest);

            CompileAndVerify(piaCompilation, verify: VerifyOnMonoOrCoreClr);

            string consumer = @"
class UsePia
{
    public static void Main(ITest44 x)
    {
        x.M1();
    }
} 
";

            foreach (var reference in new[] { piaCompilation.ToMetadataReference(embedInteropTypes: true), piaCompilation.EmitToImageReference(embedInteropTypes: true) })
            {
                var compilation1 = CreateCompilation(consumer, options: TestOptions.ReleaseDll, references: new[] { reference, attributesRef }, targetFramework: TargetFramework.NetStandardLatest);

                compilation1.VerifyEmitDiagnostics(
                    // (4,29): error CS8711: Type 'ITest44' cannot be embedded because it has a non-abstract member. Consider setting the 'Embed Interop Types' property to false.
                    //     public static void Main(ITest44 x)
                    Diagnostic(ErrorCode.ERR_DefaultInterfaceImplementationInNoPIAType, "ITest44").WithArguments("ITest44").WithLocation(4, 29)
                    );
            }
        }