Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/gtest-116.cs

@@ -0,0 +1,51 @@
+using System;
+
+namespace Slow
+{
+	public interface ITest
+	{
+		void DoNothing<T>()
+			where T : class;
+	}
+
+	public class Test : ITest
+	{
+		public void DoNothing<T>()
+			where T : class
+		{
+			T x = null;
+		}
+	}
+
+	class Program
+	{
+		public static void Main(string[] args)
+		{
+			const int iterations = 10000;
+
+			Test test = new Test ();
+            
+			DateTime start = DateTime.Now;
+			Console.Write ("Calling Test.DoNothing<Program>() on an object reference...  ");
+			for (int i = 0; i < iterations; ++i)
+			{
+				test.DoNothing<Program> ();
+			}
+			DateTime end = DateTime.Now;
+			TimeSpan duration = end - start;
+			Console.WriteLine ("Took " + duration.TotalMilliseconds + " ms.");
+	    
+			ITest testInterface = test;
+
+			start = DateTime.Now;
+			Console.Write ("Calling Test.DoNothing<Program>() on an interface reference...  ");
+			for (int i = 0; i < iterations; ++i)
+			{
+				testInterface.DoNothing<Program> ();
+			}
+			end = DateTime.Now;
+			duration = end - start;
+			Console.WriteLine ("Took " + duration.TotalMilliseconds + " ms.");
+		}
+	}
+}