Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/test-178.cs

@@ -0,0 +1,31 @@
+//
+// This test ensures that we emit attributes for operators
+// only once.
+//
+
+using System.ComponentModel;
+using System.Reflection;
+
+public class BrowsableClass
+{
+        [EditorBrowsable(EditorBrowsableState.Always)]
+        public static BrowsableClass operator ++(BrowsableClass a) 
+        { 
+                return null; 
+        }
+
+        public static int Main ()
+        {
+                BrowsableClass c = new BrowsableClass ();
+                MethodInfo mi = c.GetType().GetMethod ("op_Increment");
+                
+                object[] attributes = mi.GetCustomAttributes
+                        (typeof(EditorBrowsableAttribute), false);
+
+                if (attributes.Length != 1)
+                        return 1;
+
+                return 0;
+        }
+}
+