syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"candidate.visit_leaves(|subcandidate|"}]}
source_snippet:                 candidate.visit_leaves(|subcandidate| {
context_before:             if candidate.extra_data.is_never {
context_after:                     let block = subcandidate.pre_binding_block.unwrap();