Support TSR when wildcard follows named param (julienschmidt#321)

Author: erichuang1994

tree.go

@@ -393,7 +393,7 @@ walk: // Outer loop for walking the tree
 						// No handle found. Check if a handle for this path + a
 						// trailing slash exists for TSR recommendation
 						n = n.children[0]
-						tsr = (n.path == "/" && n.handle != nil)
+						tsr = (n.path == "/" && n.handle != nil) || (n.path == "" && n.indices == "/")
 					}
 
 					return

tree_test.go

@@ -392,6 +392,7 @@ func TestTreeTrailingSlashRedirect(t *testing.T) {
 		"/no/a",
 		"/no/b",
 		"/api/hello/:name",
+		"/vendor/:x/*y",
 	}
 	for i := range routes {
 		route := routes[i]
@@ -420,6 +421,7 @@ func TestTreeTrailingSlashRedirect(t *testing.T) {
 		"/admin/config/",
 		"/admin/config/permissions/",
 		"/doc/",
+		"/vendor/x",
 	}
 	for _, route := range tsrRoutes {
 		handler, _, tsr := tree.getValue(route, nil)