syntax_data: {"ast_node_type":"other","tokens":[{"end":31,"kind":"keyword","start":0,"text":"|val|"}]}
source_snippet:                         |val| {
context_before:                     sorted_candidates.keys().filter_map(|br| br.as_constant()).copied().all(
context_after:                             matches!(range.contains(val, self.tcx, self.typing_env()), Some(false))