syntax_data: {"ast_node_type":"other","tokens":[{"end":18,"kind":"keyword","start":0,"text":"match"}]}
source_snippet:         match br {
context_before:     pub fn from_bound(var: BoundVar, br: BoundRegionKind) -> LateParamRegionKind {
context_after:             BoundRegionKind::Anon => LateParamRegionKind::Anon(var.as_u32()),