Fatal VS crash when invoking completion session #81576
Description
Version Used:
VS 2026 [11222.16]
Steps to Reproduce:
using System.Collections;
using System.Runtime.CompilerServices;
[CollectionBuilder(typeof(MyFancyCollection), nameof(MyFancyCollection$$))]
public class MyFancyCollection : IEnumerable<int>
{
public MyFancyCollection Create(ReadOnlySpan<int> ints)
{
}
public IEnumerator<int> GetEnumerator()
{
throw new NotImplementedException();
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
}Type . at $$
Expected Behavior:
I see completion list
Actual Behavior:
VS hard-crashes in a few secs probably due to stack overflow