{"ast_node_type":"other","tokens":[{"end":18,"kind":"keyword","start":0,"text":"///"}]}
    /// `Some(_)`.
    /// For example, if `ctor` is a `Constructor::Variant` for `Option::Some`, we get the pattern
    pub(crate) fn wild_from_ctor(cx: &Cx, ctor: Constructor<Cx>, ty: Cx::Ty) -> Self {