Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/gtest-iter-23.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+
+class C
+{
+	static IEnumerable<int> Test ()
+	{
+		List<Func<int>> lambdas = new List<Func<int>> ();
+		for (int i = 0; i < 4; ++i) {
+			int h = i;
+			lambdas.Add (() => h);
+			yield return 2;
+		}
+
+		for (int i = 0; i < 4; ++i) {
+			yield return lambdas[i] ();
+		}
+	}
+
+	static IEnumerable<int> Test_2 ()
+	{
+		List<Func<int>> lambdas = new List<Func<int>> ();
+		for (int i = 0; i < 4; ++i) {
+			int h = i;
+			lambdas.Add (() => h);
+		}
+
+		for (int i = 0; i < 4; ++i) {
+			yield return lambdas[i] ();
+		}
+	}
+
+	public static int Main ()
+	{
+		int t = 0;
+		foreach (var a in Test ()) {
+			t += a;
+		}
+
+		Console.WriteLine (t);
+		if (t != 14)
+			return 1;
+
+		t = 0;
+		foreach (var a in Test_2 ()) {
+			t += a;
+		}
+
+		Console.WriteLine (t);
+		if (t != 6)
+			return 2;
+
+		return 0;
+	}
+}