SetThreadContext Assert

using System;
using System.Runtime.CompilerServices;
using Internal.Runtime.Augments;

class Program
{
    static void Fill(ConditionalWeakTable<object,object> cwt)
    {
        Object[] o = new object[1000000];
        for (int i = 0; i < o.Length; i++)
            cwt.Add(o[i] = new object(), new object());
    }

    static volatile int x = 1;

    static void Work() {
        while (x != 0) x += 2;
    }

    static int Main()
    {
        var cwt = new ConditionalWeakTable<object,object>();
        Fill(cwt);
        RuntimeThread.Create(Work).Start();
        for (;;) { new object[1000].ToString(); GC.KeepAlive(cwt); RuntimeThread.Sleep(1); }
    }
}