pub fn walk_flat_map_foreign_item<V: MutVisitor>(
vis: &mut V,
value: P<ForeignItem>,
) -> SmallVec<[P<ForeignItem>; 1]>
pub fn walk_flat_map_foreign_item<V: MutVisitor>(
vis: &mut V,
value: P<ForeignItem>,
) -> SmallVec<[P<ForeignItem>; 1]>