syntax_data: {"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"(CheckRegions::FromFunction,"}]}
source_snippet:                     (CheckRegions::FromFunction, ty::ReBound(di, reg)) => {
context_before:                 GenericArgKind::Lifetime(lt) => match (ignore_regions, lt.kind()) {
context_after:                         if !seen_late.insert((di, reg)) {