syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"Candidate::new(scrutinee_place_builder.clone(),"}]}
source_snippet:                 Candidate::new(scrutinee_place_builder.clone(), pat, has_guard, self)
context_before:             .map(|(pat, has_guard)| {
context_after:             })