Function gluon_vm::core::optimize::walk_bind

pub fn walk_bind<'a, 'b, V: ?Sized>(
    visitor: &mut V, 
    bind: &LetBinding<'b>
) -> Option<&'a LetBinding<'a>> where
    V: Visitor<'a, 'b>,
    V::Producer: Visitor<'a, 'b, Producer = V::Producer>,