syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"ty::ReEarlyParam(region)"}]}
source_snippet:             ty::ReEarlyParam(region) => Region::new_early_param(tcx, region),
context_before:         match kind {
context_after:             ty::ReBound(debruijn, region) => Region::new_bound(tcx, debruijn, region),