Result: Calling `Dispose()` on the iterator can dispose the resource inside even the iterator's code seems never return.

Program.cs

void Main()
{
	var itor = InfiniteOne();
	var iter = itor.GetEnumerator();
	iter.MoveNext();
	Console.WriteLine("Value is {0}", iter.Current);
	iter.Dispose();
}

static IEnumerable<int> InfiniteOne(){
	using var _ = new Leakable();
	while(true)
	    yield return 1;
}

sealed class Leakable : IDisposable {
	public void Dispose(){
		Console.WriteLine("Disposed!");
	}
}