diff -up thunderbird-60.9.0/servo/components/style_traits/values.rs.rust-build thunderbird-60.9.0/servo/components/style_traits/values.rs

--- thunderbird-60.9.0/servo/components/style_traits/values.rs.rust-build	2019-09-06 12:25:57.491129675 +0200

+++ thunderbird-60.9.0/servo/components/style_traits/values.rs	2019-09-06 12:27:54.698509544 +0200

@@ -135,6 +135,7 @@ where

     }

 }

+/// Some dummy docs

 #[macro_export]

 macro_rules! serialize_function {

     ($dest: expr, $name: ident($( $arg: expr, )+)) => {

@@ -404,6 +405,7 @@ impl_to_css_for_predefined_type!(::csspa

 impl_to_css_for_predefined_type!(::cssparser::Color);

 impl_to_css_for_predefined_type!(::cssparser::UnicodeRange);

+/// Some dummy docs

 #[macro_export]

 macro_rules! define_css_keyword_enum {

     (pub enum $name:ident { $($variant:ident = $css:expr,)+ }) => {