TransformDisplayClassUsage not working.

[yyjdelete]

Tested with 6.0.0.5559
And the last public working version is 5.0.2.5153. Maybe relate to 7c8458d#diff-1ae3ed7affb1f6f07c828648aa9889d5L283-L289 ?

Test Code

        public void Test1()
        {
            IEnumerable<object> outerCapture = null;
            for (int i = 0; i < 10; i++)
            {
                int innerCapture = 0;
                Action a = (delegate
                {
                    List<object> list = new List<object>();
                    ++innerCapture;
                    outerCapture = outerCapture == null ? list : outerCapture.Concat(list);
                });
                a.Invoke();
            }
        }

Output

Failed to convert the last assign in new versions.

public void Test1()
{
	IEnumerable<object> outerCapture = null;
	for (int i = 0; i < 10; i++)
	{
		int innerCapture = 0;
		((Action)delegate
		{
			List<object> list = new List<object>();
			int num = ++innerCapture;
+			<>c__DisplayClass2_0 <>c__DisplayClass2_;
+			<>c__DisplayClass2_0 <>c__DisplayClass2_2 = <>c__DisplayClass2_;
			IEnumerable<object> outerCapture2;
			if (outerCapture != null)
			{
				outerCapture2 = outerCapture.Concat(list);
			}
			else
			{
				IEnumerable<object> enumerable = list;
				outerCapture2 = enumerable;
			}
-			outerCapture = outerCapture2;
+			<>c__DisplayClass2_2.outerCapture = outerCapture2;
		})();
	}
}