GeneratedComClass doesn't apply to inherited classes #94357
Description
Placing GeneratedComClass on a base class doesn't enable deriving types to work with source generated COM.
Should we check for base classes that have the IComExposedDetails as well here?
https://github.com/dotnet/runtime/blob/df6fdefa27068126794b253d4d822706221a92db/src/libraries/System.Runtime.InteropServices/src/System/Runtime/InteropServices/Marshalling/IComExposedDetails.cs#L21C49-L21C49
[GeneratedComInterface]
[Guid("c5356681-8f8c-423a-959c-2d91f17215d3")]
internal partial interface IFoo
{
int get();
}
[GeneratedComClass]
[Guid("9f826481-4d92-4499-ab26-c40d9f77435b")]
internal partial class FooBase : IFoo
{
public int get() => 42;
}
internal class Foo<T> :FooBase
{
}
int Main()
{
var cw = new StrategyBasedComWrappers();
var foo = new Foo<int>();
nint iptr = cw.GetOrCreateComInterfaceForObject(foo, CreateComInterfaceFlags.None);
IFoo f = (IFoo)cw.GetOrCreateObjectForComInstance(iptr, CreateObjectFlags.None); // Fails - iptr does not implement IFoo
}