servo: Merge #14710 - Mark DOM interfaces as repr(C) (from nox:repr-c); r=KiChjang

Source-Repo: https://github.com/servo/servo
Source-Revision: b5909f26cf4ca255d13bf31b3261e6c9df11a4a1

servo/components/plugins/jstraceable.rs

@@ -12,6 +12,7 @@ pub fn expand_dom_struct(cx: &mut ExtCtxt, sp: Span, _: &MetaItem, anno: Annotat
         let mut item2 = (*item).clone();
         item2.attrs.push(quote_attr!(cx, #[must_root]));
         item2.attrs.push(quote_attr!(cx, #[privatize]));
+        item2.attrs.push(quote_attr!(cx, #[repr(C)]));
         item2.attrs.push(quote_attr!(cx, #[derive(JSTraceable)]));
         item2.attrs.push(quote_attr!(cx, #[derive(HeapSizeOf)]));