Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/test-722.cs

@@ -0,0 +1,39 @@
+interface IA
+{
+}
+
+interface IF : IA
+{
+	int Prop { set; }
+}
+
+struct S : IF
+{
+	int prop;
+	
+	public S (int a)
+	{
+		this.prop = 5;
+	}
+	
+	public int Prop {
+		set {
+			prop = value;
+		}
+	}
+	
+	void M<T> (T ia) where T : struct, IA
+	{
+		((IF)ia).Prop = 3;
+	}
+	
+	public static void Main ()
+	{
+		S s = new S ();
+		object o = s;
+		((IF)((S)o)).Prop = 3;
+		
+		IA ia = new S ();
+		((IF)ia).Prop = 3;
+	}
+}