servo: Merge #5775 - Implement CSSStyleDeclaration.float (fixes #5101) (from nox:cssstyledeclaration-float); r=jdm

It just needs to be prefixed by an underscore.

Source-Repo: https://github.com/servo/servo
Source-Revision: 7fa1a6a42621a8bd46137b3417a7623a6b3ed2d1

servo/components/script/dom/webidls/CSSStyleDeclaration.webidl

@@ -84,7 +84,7 @@ partial interface CSSStyleDeclaration {
   [TreatNullAs=EmptyString] attribute DOMString boxShadow;
   [TreatNullAs=EmptyString] attribute DOMString textShadow;
 
-  //[TreatNullAs=EmptyString] attribute DOMString float; //XXXjdm need BinaryName annotation
+  [TreatNullAs=EmptyString] attribute DOMString _float;
 
   [TreatNullAs=EmptyString] attribute DOMString clear;
 

servo/components/style/properties.mako.rs

@@ -5497,9 +5497,7 @@ macro_rules! css_properties_accessors {
     ($macro_name: ident) => {
         $macro_name! {
             % for property in SHORTHANDS + LONGHANDS:
-                ## Servo internal CSS properties are not accessible.
-                ## FIXME: Add BinaryName WebIDL annotation (#4435).
-                % if property.derived_from is None and property.name != "float":
+                % if property.derived_from is None:
                     % if property != LONGHANDS[-1]:
                         [${property.camel_case}, Set${property.camel_case}, "${property.name}"],
                     % else: