{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"///"}]}
    /// Write out our state into the `.mir` files.
impl<'tcx> RegionInferenceContext<'tcx> {
    pub(crate) fn dump_mir(&self, tcx: TyCtxt<'tcx>, out: &mut dyn Write) -> io::Result<()> {