[Mono] System.Runtime.Tests fail with TypeLoadException  #94086

private static void ValidateArrayType(Type arrayType)
{
    if (!arrayType.IsArray)
        ThrowHelper.ThrowArgumentException(ExceptionResource.Argument_HasToBeArrayClass, ExceptionArgument.arrayType);

    ValidateElementType(arrayType.GetElementType()!);
}

private static void ValidateElementType(Type elementType)
{
    while (elementType.IsArray)
    {
        elementType = elementType.GetElementType()!;
    }

    if (elementType.IsByRef || elementType.IsByRefLike)
        ThrowHelper.ThrowNotSupportedException(ExceptionResource.NotSupported_ByRefLikeArray);
    if (elementType == typeof(void))
        ThrowHelper.ThrowNotSupportedException(ExceptionResource.NotSupported_VoidArray);
    if (elementType.ContainsGenericParameters)
        ThrowHelper.ThrowNotSupportedException(ExceptionResource.NotSupported_OpenType);
}

    System.Tests.ArrayTests.CreateInstanceFromArrayType_NotSupportedArrayType_ThrowsNotSupportedException(elementType: typeof(System.Void)) [FAIL]
      Assert.Throws() Failure: Exception type was not an exact match
      Expected: typeof(System.NotSupportedException)
      Actual:   typeof(System.TypeLoadException)
      ---- System.TypeLoadException : Could not load array element class, due to: Error getting the interfaces of System.Void[] due to Error Loading class assembly:/root/helix/work/correlation/shared/Microsoft.NETCore.App/9.0.0/System.Private.CoreLib.dll type:IList`1 member:(null) assembly:/root/helix/work/correlation/shared/Microsoft.NETCore.App/9.0.0/System.Private.CoreLib.dll type:Void[] member:(null)
      Stack Trace:
        /_/src/libraries/System.Runtime/tests/System/ArrayTests.cs(1957,0): at System.Tests.ArrayTests.CreateInstanceFromArrayType_NotSupportedArrayType_ThrowsNotSupportedException(Type elementType)
        /_/src/mono/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.Mono.cs(22,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
        /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(178,0): at System.Reflection.MethodBaseInvoker.InvokeDirectByRefWithFewArgs(Object obj, Span`1 copyOfArgs, BindingFlags invokeAttr)
        ----- Inner Stack Trace -----
        /_/src/mono/System.Private.CoreLib/src/System/RuntimeTypeHandle.cs(287,0): at System.RuntimeTypeHandle.GetElementType(RuntimeType type)
        /_/src/libraries/System.Private.CoreLib/src/System/RuntimeType.cs(96,0): at System.RuntimeType.GetElementType()
        /_/src/libraries/System.Private.CoreLib/src/System/Array.cs(338,0): at System.Array.ValidateArrayType(Type arrayType)
        /_/src/libraries/System.Private.CoreLib/src/System/Array.cs(261,0): at System.Array.CreateInstanceFromArrayType(Type arrayType, Int32[] lengths)
        /_/src/libraries/System.Runtime/tests/System/ArrayTests.cs(1957,0): at System.Tests.ArrayTests.<>c__DisplayClass90_0.<CreateInstanceFromArrayType_NotSupportedArrayType_ThrowsNotSupportedException>b__1()
    System.Threading.Tests.PeriodicTimerTests.PeriodicTimer_NoActiveOperations_TimerNotRooted [SKIP]

using System.Reflection;

namespace ArrayOfVoid
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine($"IsMono: {Type.GetType("Mono.RuntimeStructs") != null}");

            Console.WriteLine(typeof(void).MakeArrayType().IsArray);
            Console.WriteLine(typeof(void).MakeArrayType().MakeArrayType().IsArray);

            Console.WriteLine(typeof(void).MakeArrayType().GetElementType()!.IsArray);
            Console.WriteLine(typeof(void).MakeArrayType().MakeArrayType().GetElementType()!.IsArray);
            Console.WriteLine(typeof(void).MakeArrayType().MakeArrayType().GetElementType()!.GetElementType()!.IsArray);
        }
    }
}