{"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"///"}]}
    /// find as the `func` in a [`TerminatorKind::Call`].
    /// While this is unlikely in general, it's the normal case of what you'll
    pub fn const_fn_def(&self) -> Option<(DefId, GenericArgsRef<'tcx>)> {