Allow adding a set of cfg's to hide from being implicitly doc(cfg)'d

By adding #![doc(cfg_hide(foobar))] to the crate attributes the cfg
 #[cfg(foobar)] (and _only_ that _exact_ cfg) will not be implicitly
treated as a doc(cfg) to render a message in the documentation.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/librustdoc/html/render/print_item.rs b/src/librustdoc/html/render/print_item.rs
index e68e1223171..e3ffc1e3f21 100644
--- a/src/librustdoc/html/render/print_item.rs
+++ b/src/librustdoc/html/render/print_item.rs
@@ -323,7 +323,7 @@ fn item_module(w: &mut Buffer, cx: &Context<'_>, item: &clean::Item, items: &[cl
                     let import_item = clean::Item {
                         def_id: import_def_id.into(),
                         attrs: import_attrs,
-                        cfg: ast_attrs.cfg(cx.tcx()),
+                        cfg: ast_attrs.cfg(cx.tcx(), &cx.cache().hidden_cfg),
                         ..myitem.clone()
                     };