Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/gtest-221.cs

@@ -0,0 +1,22 @@
+interface IFoo {}
+interface IBar {}
+
+class C1<IFoo> where IFoo : IBar
+{
+}
+
+abstract class C2
+{
+        public abstract C1<T> Hoge<T> (C1<T> c) where T : IBar;
+}
+
+class C3 : C2
+{
+        public override C1<T> Hoge<T> (C1<T> c) { return null; }
+}
+
+class X
+{
+	public static void Main ()
+	{ }
+}