syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"ty::BoundRegionKind::Anon"}]}
source_snippet:                     ty::BoundRegionKind::Anon | ty::BoundRegionKind::ClosureEnv => r,
context_before:                 match kind {
context_after:                     _ => {