Function rustc_hir::intravisit::walk_fn

pub fn walk_fn<'v, V: Visitor<'v>>(
    visitor: &mut V, 
    function_kind: FnKind<'v>, 
    function_declaration: &'v FnDecl<'v>, 
    body_id: BodyId, 
    _span: Span, 
    id: HirId
)