Add support for tuple struct fields documentation in enums as well

Author: GuillaumeGomez

src/librustdoc/clean/mod.rs

@@ -1730,9 +1730,7 @@ impl Clean<Variant> for hir::VariantData<'_> {
     fn clean(&self, cx: &mut DocContext<'_>) -> Variant {
         match self {
             hir::VariantData::Struct(..) => Variant::Struct(self.clean(cx)),
-            hir::VariantData::Tuple(..) => {
-                Variant::Tuple(self.fields().iter().map(|x| x.ty.clean(cx)).collect())
-            }
+            hir::VariantData::Tuple(..) => Variant::Struct(self.clean(cx)),
             hir::VariantData::Unit(..) => Variant::CLike,
         }
     }

src/librustdoc/html/render/print_item.rs

@@ -1037,8 +1037,9 @@ fn item_enum(w: &mut Buffer, cx: &Context<'_>, it: &clean::Item, e: &clean::Enum
                 write!(w, "<div class=\"sub-variant\" id=\"{id}\">", id = variant_id);
                 write!(
                     w,
-                    "<h3>Fields of <b>{name}</b></h3><div>",
-                    name = variant.name.as_ref().unwrap()
+                    "<h3>{extra}Fields of <b>{name}</b></h3><div>",
+                    extra = if s.struct_type == CtorKind::Fn { "Tuple " } else { "" },
+                    name = variant.name.as_ref().unwrap(),
                 );
                 for field in &s.fields {
                     use crate::clean::StructFieldItem;
@@ -1509,7 +1510,10 @@ fn render_struct(
             if let Some(g) = g {
                 write!(w, "{}", print_where_clause(g, cx, 0, false),)
             }
-            w.write_str(";");
+            // We only want a ";" when we are displaying a tuple struct, not a variant tuple struct.
+            if structhead {
+                w.write_str(";");
+            }
         }
         CtorKind::Const => {
             // Needed for PhantomData.