Imported Upstream version 6.4.0.137

Former-commit-id: 943baa9f16a098c33e129777827f3a9d20da00d6

mcs/tests/test-tuple-11.cs

@@ -0,0 +1,20 @@
+using System;
+
+class Program
+{
+	public static int Main ()
+	{
+		int x = 1;
+		int y = 2;
+
+		(x, y) = (y, x);
+
+		if (x != 2)
+			return 1;
+
+		if (y != 1)
+			return 2;
+
+		return 0;
+	}
+}

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

@@ -1 +1 @@
-fa750278297dbee3268ad9b87d035e4cb8346405
+4ad26da95f76ceee7a97f07ea5c3099fe2ae45fb