Imported Upstream version 5.4.0.167

Former-commit-id: 5624ac747d633e885131e8349322922b6a59baaa

mcs/tests/test-943.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Runtime.InteropServices;
+
+public struct MyStruct
+{
+	public int X { get; set; }
+}
+
+[StructLayout (LayoutKind.Sequential, Pack = 1)]
+public struct MyStruct2
+{
+    public IntPtr handle;
+    public uint type_reference;
+}
+
+class X
+{
+	public static int Main ()
+	{
+		var s = typeof (MyStruct);
+
+		if (s.StructLayoutAttribute.Size != 0)
+			return 1;
+
+		var s2 = typeof (MyStruct2);
+
+		if (s2.StructLayoutAttribute.Size != 0)
+			return 2;
+
+		if (s2.StructLayoutAttribute.Pack != 1)
+			return 3;
+
+		return 0;
+	}
+}