Imported Upstream version 5.10.0.71

Former-commit-id: 65f7f4344e4c1c5e42628faefa5b9d36955387d1

mcs/tests/test-readonly-02.cs

@@ -0,0 +1,27 @@
+// Compiler options: -langversion:latest
+using System;
+
+public delegate ref readonly int D (int x);
+
+class X
+{
+	public static void Main ()
+	{
+
+	}
+
+	Guid g;
+
+	ref readonly Guid TestMethod ()
+	{
+		return ref g;
+	}
+
+	ref readonly Guid TestProp {
+		get {
+			ref readonly var rg = ref g;
+			return ref rg;
+		}
+	}	
+
+}

mcs/tests/ver-il-net_4_x.xml.REMOVED.git-id

@@ -1 +1 @@
-53b3539833656acb93be1ac56ce37dd74ae46aea
+4e488c37bc46fed416be09476a01fed86a94ba5e