sometimes it may be desirable to not have GC to clear memory when it hands an object out. I am using this issue to track providing such an option for large objects in GC which is pretty simple - if GCHeap::Alloc is called with this intention indicated in the flag GC will not clear the memory. there's also a part in the higher level component that will need to expose such a flag and pass it down to the alloc helper which will be tracked in a separate issue.