Imported Upstream version 5.4.0.167

Former-commit-id: 5624ac747d633e885131e8349322922b6a59baaa

mcs/class/referencesource/System.Web/Routing/Route.cs

@@ -80,7 +80,7 @@
             }
             set {
                 // The parser will throw for invalid routes. We don't have to worry
-                // about _parsedRoute getting out of [....] with _url since the latter
+                // about _parsedRoute getting out of sync with _url since the latter
                 // won't get set unless we can parse the route.
                 _parsedRoute = RouteParser.Parse(value);
 

mcs/class/referencesource/System.Web/Routing/RouteCollection.cs

@@ -81,6 +81,12 @@
             if (!String.IsNullOrEmpty(name)) {
                 _namedMap[name] = item;
             }
+
+            // RouteBase doesn't have handler info, so we only log Route.RouteHandler
+            var route = item as Route;
+            if (route != null && route.RouteHandler != null) {
+                TelemetryLogger.LogHttpHandler(route.RouteHandler.GetType());
+            }            
         }
 
         [SuppressMessage("Microsoft.Design", "CA1054:UriParametersShouldNotBeStrings",