Remove `MacroKind::ProcMacroStub`

It's internal to resolve and always results in `Res::Err` outside of resolve.
Instead put `DefKind::Fn`s themselves into the macro namespace, it's ok.

Proc macro stubs are items placed into macro namespase for functions that define proc macros.
https://github.com/rust-lang/rust/pull/52383

The rustdoc test is changed because the old test didn't actually reproduce the ICE it was supposed to reproduce.

2 files changed, 0 insertions, 3 deletions

diff --git a/src/librustdoc/html/item_type.rs b/src/librustdoc/html/item_type.rs
index 5f1a1b31616..9affc08141d 100644
--- a/src/librustdoc/html/item_type.rs
+++ b/src/librustdoc/html/item_type.rs
@@ -92,7 +92,6 @@ impl<'a> From<&'a clean::Item> for ItemType {
                 MacroKind::Bang            => ItemType::Macro,
                 MacroKind::Attr            => ItemType::ProcAttribute,
                 MacroKind::Derive          => ItemType::ProcDerive,
-                MacroKind::ProcMacroStub   => unreachable!(),
             }
             clean::StrippedItem(..)        => unreachable!(),
         }
diff --git a/src/librustdoc/html/render.rs b/src/librustdoc/html/render.rs
index 2d69c29dfae..5c6847b4141 100644
--- a/src/librustdoc/html/render.rs
+++ b/src/librustdoc/html/render.rs
@@ -2471,7 +2471,6 @@ impl<'a> fmt::Display for Item<'a> {
                 MacroKind::Bang => write!(fmt, "Macro ")?,
                 MacroKind::Attr => write!(fmt, "Attribute Macro ")?,
                 MacroKind::Derive => write!(fmt, "Derive Macro ")?,
-                MacroKind::ProcMacroStub => unreachable!(),
             }
             clean::PrimitiveItem(..) => write!(fmt, "Primitive Type ")?,
             clean::StaticItem(..) | clean::ForeignStaticItem(..) => write!(fmt, "Static ")?,
@@ -5092,7 +5091,6 @@ fn item_proc_macro(w: &mut fmt::Formatter<'_>, cx: &Context, it: &clean::Item, m
             }
             write!(w, "</pre>")?;
         }
-        _ => {}
     }
     document(w, cx, it)
 }