Imported Upstream version 5.10.0.47

Former-commit-id: d0813289fa2d35e1f8ed77530acb4fb1df441bc0

mcs/errors/cs8157.cs

@@ -0,0 +1,13 @@
+// CS8157: Cannot return `r' by reference because it was initialized to a value that cannot be returned by reference
+// Line: 11
+
+struct S
+{
+	int i;
+
+	ref int M ()
+	{
+		ref int r = ref i;
+		return ref r;
+	}
+}