Function walk_variable_definition

pub fn walk_variable_definition<'hir, V>(
    v: &mut V,
    base: &'hir Item<'hir>,
    name: &'hir PathDef,
    ty: Option<&'hir Type<'hir>>,
    init: Option<&'hir Expression<'hir>>,
    _constness: Constness,
) -> V::Result
where
    V: Visitor<'hir> + ?Sized,