{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"//"}]}
        // This was already constant in MIR, do not change it. If the constant is not
    fn try_as_constant(&mut self, index: VnIndex) -> Option<ConstOperand<'tcx>> {
        // deterministic, adding an additional mention of it in MIR will not give the same value as