Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/dtest-055.cs

@@ -0,0 +1,28 @@
+using System;
+
+struct S<T>
+{
+}
+
+abstract class B<T1, T2>
+{
+	public abstract void Foo<U> (U x) where U : T1, T2;
+}
+
+class C : B<S<object>, S<dynamic>>
+{
+	public override void Foo<U> (U x)
+	{
+	}
+
+	public static int Main ()
+	{
+		var m = typeof (C).GetMethod ("Foo");
+		var ta = m.GetGenericArguments ()[0].GetGenericParameterConstraints ();
+		if (ta.Length != 1)
+			return 1;
+		
+		Console.WriteLine ("ok");
+		return 0;
+	}
+}