Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/gtest-412.cs

@@ -0,0 +1,42 @@
+using System;
+using System.Reflection;
+
+class Program
+{
+	public static int Main ()
+	{
+		Type type = typeof (Foo<>);
+		Type [] gargs = type.GetGenericArguments ();
+		if (gargs == null || gargs.Length != 1) {
+			Console.WriteLine ("#1");
+			return 1;
+		}
+
+		Type garg = gargs [0];
+		Type [] csts = garg.GetGenericParameterConstraints ();
+
+		if (garg.Name != "T") {
+			Console.WriteLine ("#2: " + garg.Name);
+			return 2;
+		}
+		if (garg.GenericParameterAttributes !=
+			(GenericParameterAttributes.DefaultConstructorConstraint | GenericParameterAttributes.NotNullableValueTypeConstraint)) {
+			Console.WriteLine ("#3: " + garg.GenericParameterAttributes);
+			return 3;
+		}
+		if (csts == null || csts.Length != 1) {
+			Console.WriteLine ("#4");
+			return 4;
+		}
+		if (csts [0] != typeof (ValueType)) {
+			Console.WriteLine ("#5: " + csts [0].FullName);
+			return 5;
+		}
+
+		return 0;
+	}
+}
+
+struct Foo<T> where T : struct
+{
+}