[System.Xml] Don't hardcode nunit-lite-console in GeneratedCodeAttribute

Instead determine it at runtime.

(cherry picked from commit 1bc213f)

mcs/class/System.XML/Test/System.Xml.Serialization/XmlCodeExporterTests.cs

@@ -45,10 +45,11 @@ public void ExportTypeMapping_ArrayClass ()
 			ICodeGenerator generator = provider.CreateGenerator ();
 			generator.GenerateCodeFromNamespace (codeNamespace, sw, new CodeGeneratorOptions ());
 
+			var currentAssembly = Assembly.GetEntryAssembly ().GetName ();
 			Assert.AreEqual (string.Format(CultureInfo.InvariantCulture,
 				"{0}{0}" +
 				"/// <remarks/>{0}" +
-				"[System.CodeDom.Compiler.GeneratedCodeAttribute(\"nunit-lite-console\", \"0.0.0.0\")]{0}" +
+				"[System.CodeDom.Compiler.GeneratedCodeAttribute(\"{1}\", \"{2}\")]{0}" +
 				"[System.SerializableAttribute()]{0}" +
 				"[System.Diagnostics.DebuggerStepThroughAttribute()]{0}" +
 				"[System.ComponentModel.DesignerCategoryAttribute(\"code\")]{0}" +
@@ -66,7 +67,7 @@ public void ExportTypeMapping_ArrayClass ()
 				"            this.namesField = value;{0}" +
 				"        }}{0}" +
 				"    }}{0}" +
-				"}}{0}", Environment.NewLine), sw.ToString (), "#2");
+				"}}{0}", Environment.NewLine, currentAssembly.Name, currentAssembly.Version), sw.ToString (), "#2");
 
 
 			codeNamespace = ExportCode (typeof (ArrayClass[]));