syntax_data: {"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"ty::ReErased"}]}
source_snippet:             ty::ReErased => tcx.lifetimes.re_erased,
context_before:             ty::RePlaceholder(region) => Region::new_placeholder(tcx, region),
context_after:             ty::ReError(reported) => Region::new_error(tcx, reported),