New test.

svn path=/trunk/mcs/; revision=102263

1 files changed, 46 insertions, 0 deletions

diff --git a/mcs/tests/test-641.cs b/mcs/tests/test-641.cs
new file mode 100644
index 00000000000..c128d5eca75
--- /dev/null
+++ b/mcs/tests/test-641.cs
@@ -0,0 +1,46 @@
+using System;
+
+public class Identifier
+{
+	public Identifier () { }
+
+	public static bool operator == (Identifier id1, Identifier id2)
+	{
+		return true;
+	}
+	public static bool operator != (Identifier id1, Identifier id2)
+	{
+		return true;
+	}
+
+	public static implicit operator Identifier (string identifier)
+	{
+		return null;
+	}
+	
+	public static implicit operator String (Identifier id)
+	{
+		return null;
+	}
+	
+	public static implicit operator decimal (Identifier id)
+	{
+		return -1;
+	}	
+
+	static int Main ()
+	{
+		Identifier a = null;
+		string b = "a";
+
+		if (!(a == b))
+			return 1;
+
+		decimal d = 5;
+		if (a == d)
+			return 2;
+		
+		return 0;
+	}
+}
+